\uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0\uc11c \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4(UI)\ub294 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4. UI\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uacfc \uc0c1\ud638\uc791\uc6a9\ud560 \ub54c \ucc98\uc74c \uc811\ud558\ub294 \ubd80\ubd84\uc774\uae30 \ub54c\ubb38\uc5d0 \uc9c1\uad00\uc801\uc774\uace0 \ub9e4\ub825\uc801\uc778 \ub514\uc790\uc778\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc5d0\uc11c FrameLayout<\/strong>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubdf0(View)\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n1. FrameLayout \uc18c\uac1c<\/h2>\nFrameLayout\uc740 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 \uae30\ubcf8 \ub808\uc774\uc544\uc6c3 \uc911 \ud558\ub098\ub85c, \uc790\uc2dd \ubdf0\ub97c \uc313\uc544 \uc62c\ub9ac\ub294 \ubc29\uc2dd\uc73c\ub85c \ubc30\uce58\ud569\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc73c\ub85c FrameLayout\uc740 \uac00\uc7a5 \uccab \ubc88\uc9f8 \uc790\uc2dd \ubdf0\ub97c \uae30\uc900\uc73c\ub85c \ud558\uc5ec \ub098\uba38\uc9c0 \ubdf0\ub294 \uadf8 \uc704\uc5d0 \uacb9\uccd0\uc9c0\uac8c \ub429\ub2c8\ub2e4. \uc774\ub294 \uc5ec\ub7ec \ubdf0\ub97c \uacb9\uccd0\uc11c \ubcf4\uc5ec\uc8fc\uace0\uc790 \ud560 \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n1.1 FrameLayout\uc758 \ud2b9\uc9d5<\/h3>\n\n\uac04\ub2e8\ud55c \uad6c\uc870: \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3 \ubcf4\ub2e4\ub294 \uac04\ub2e8\ud55c \uad6c\uc870\uc5d0\uc11c \uc8fc\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n\uc911\ucca9 \uac00\ub2a5: \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uacfc \uc911\ucca9\ud558\uc5ec \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\uc815\ub82c: \uc790\uc2dd \ubdf0\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \uc67c\ucabd \uc0c1\ub2e8\uc5d0 \uc815\ub82c\ub429\ub2c8\ub2e4. \uc815\ub82c \ubc29\uc2dd\uc740 Gravity \uc18d\uc131\uc73c\ub85c \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n2. FrameLayout \uc0ac\uc6a9 \uc608\uc81c<\/h2>\n\uc774\uc81c FrameLayout\uc744 \ud65c\uc6a9\ud55c \uac04\ub2e8\ud55c \uc608\uc81c\ub97c \ub9cc\ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uc608\uc81c\uc5d0\uc11c\ub294 \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud558\uace0, \uc544\ub798\uc5d0 \ud14d\uc2a4\ud2b8 \ubdf0\ub97c \ucd94\uac00\ud558\uc5ec \uac04\ub2e8\ud55c \ub85c\uadf8\uc778 \ud654\uba74\uc744 \uad6c\ud604\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n2.1 XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c \ub9cc\ub4e4\uae30<\/h3>\n\uba3c\uc800 activity_main.xml<\/code> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub808\uc774\uc544\uc6c3\uc744 \uad6c\uc131\ud569\ub2c8\ub2e4.<\/p>\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<androidx.constraintlayout.widget.ConstraintLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n tools:context=\".MainActivity\">\n\n <FrameLayout\n android:id=\"@+id\/frameLayout\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <ImageView\n android:id=\"@+id\/imageView1\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image1\"\n android:scaleType=\"centerCrop\"\/>\n\n <ImageView\n android:id=\"@+id\/imageView2\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image2\"\n android:scaleType=\"centerCrop\"\n android:layout_gravity=\"center\"\/>\n\n <\/FrameLayout>\n\n <TextView\n android:id=\"@+id\/textView\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"Login\"\n android:textSize=\"24sp\"\n android:layout_gravity=\"center\"\n android:background=\"@android:color\/transparent\"\/>\n\n<\/androidx.constraintlayout.widget.ConstraintLayout><\/code><\/pre>\n\uc774 XML \ucf54\ub4dc\ub294 FrameLayout<\/code>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc544\ub798\uc5d0\ub294 TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
FrameLayout\uc740 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 \uae30\ubcf8 \ub808\uc774\uc544\uc6c3 \uc911 \ud558\ub098\ub85c, \uc790\uc2dd \ubdf0\ub97c \uc313\uc544 \uc62c\ub9ac\ub294 \ubc29\uc2dd\uc73c\ub85c \ubc30\uce58\ud569\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc73c\ub85c FrameLayout\uc740 \uac00\uc7a5 \uccab \ubc88\uc9f8 \uc790\uc2dd \ubdf0\ub97c \uae30\uc900\uc73c\ub85c \ud558\uc5ec \ub098\uba38\uc9c0 \ubdf0\ub294 \uadf8 \uc704\uc5d0 \uacb9\uccd0\uc9c0\uac8c \ub429\ub2c8\ub2e4. \uc774\ub294 \uc5ec\ub7ec \ubdf0\ub97c \uacb9\uccd0\uc11c \ubcf4\uc5ec\uc8fc\uace0\uc790 \ud560 \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n
\uc774\uc81c FrameLayout\uc744 \ud65c\uc6a9\ud55c \uac04\ub2e8\ud55c \uc608\uc81c\ub97c \ub9cc\ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uc608\uc81c\uc5d0\uc11c\ub294 \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud558\uace0, \uc544\ub798\uc5d0 \ud14d\uc2a4\ud2b8 \ubdf0\ub97c \ucd94\uac00\ud558\uc5ec \uac04\ub2e8\ud55c \ub85c\uadf8\uc778 \ud654\uba74\uc744 \uad6c\ud604\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\uba3c\uc800 activity_main.xml<\/code> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub808\uc774\uc544\uc6c3\uc744 \uad6c\uc131\ud569\ub2c8\ub2e4.<\/p>\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<androidx.constraintlayout.widget.ConstraintLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n tools:context=\".MainActivity\">\n\n <FrameLayout\n android:id=\"@+id\/frameLayout\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <ImageView\n android:id=\"@+id\/imageView1\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image1\"\n android:scaleType=\"centerCrop\"\/>\n\n <ImageView\n android:id=\"@+id\/imageView2\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image2\"\n android:scaleType=\"centerCrop\"\n android:layout_gravity=\"center\"\/>\n\n <\/FrameLayout>\n\n <TextView\n android:id=\"@+id\/textView\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"Login\"\n android:textSize=\"24sp\"\n android:layout_gravity=\"center\"\n android:background=\"@android:color\/transparent\"\/>\n\n<\/androidx.constraintlayout.widget.ConstraintLayout><\/code><\/pre>\n\uc774 XML \ucf54\ub4dc\ub294 FrameLayout<\/code>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc544\ub798\uc5d0\ub294 TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
activity_main.xml<\/code> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub808\uc774\uc544\uc6c3\uc744 \uad6c\uc131\ud569\ub2c8\ub2e4.<\/p>\n<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<androidx.constraintlayout.widget.ConstraintLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n tools:context=\".MainActivity\">\n\n <FrameLayout\n android:id=\"@+id\/frameLayout\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <ImageView\n android:id=\"@+id\/imageView1\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image1\"\n android:scaleType=\"centerCrop\"\/>\n\n <ImageView\n android:id=\"@+id\/imageView2\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image2\"\n android:scaleType=\"centerCrop\"\n android:layout_gravity=\"center\"\/>\n\n <\/FrameLayout>\n\n <TextView\n android:id=\"@+id\/textView\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"Login\"\n android:textSize=\"24sp\"\n android:layout_gravity=\"center\"\n android:background=\"@android:color\/transparent\"\/>\n\n<\/androidx.constraintlayout.widget.ConstraintLayout><\/code><\/pre>\n\uc774 XML \ucf54\ub4dc\ub294 FrameLayout<\/code>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc544\ub798\uc5d0\ub294 TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
<?xml version=\"1.0\" encoding=\"utf-8\"?>\n<androidx.constraintlayout.widget.ConstraintLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n xmlns:app=\"http:\/\/schemas.android.com\/apk\/res-auto\"\n xmlns:tools=\"http:\/\/schemas.android.com\/tools\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n tools:context=\".MainActivity\">\n\n <FrameLayout\n android:id=\"@+id\/frameLayout\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <ImageView\n android:id=\"@+id\/imageView1\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image1\"\n android:scaleType=\"centerCrop\"\/>\n\n <ImageView\n android:id=\"@+id\/imageView2\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:src=\"@drawable\/image2\"\n android:scaleType=\"centerCrop\"\n android:layout_gravity=\"center\"\/>\n\n <\/FrameLayout>\n\n <TextView\n android:id=\"@+id\/textView\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"Login\"\n android:textSize=\"24sp\"\n android:layout_gravity=\"center\"\n android:background=\"@android:color\/transparent\"\/>\n\n<\/androidx.constraintlayout.widget.ConstraintLayout><\/code><\/pre>\n\uc774 XML \ucf54\ub4dc\ub294 FrameLayout<\/code>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc544\ub798\uc5d0\ub294 TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
\uc774 XML \ucf54\ub4dc\ub294 FrameLayout<\/code>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc544\ub798\uc5d0\ub294 TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
FrameLayout<\/code>\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub450 \uac1c\uc758 \uc774\ubbf8\uc9c0 \ubdf0\ub97c \uacb9\uccd0\uc11c \ubc30\uce58\ud569\ub2c8\ub2e4. \uc544\ub798\uc5d0\ub294 TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
TextView<\/code>\ub97c \ucd94\uac00\ud558\uc5ec \ub85c\uadf8\uc778 \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0 \ubdf0\uc758 layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
layout_gravity<\/code> \uc18d\uc131\uc744 \uc774\uc6a9\ud558\uc5ec \ud14d\uc2a4\ud2b8\ub97c \uc911\uc559\uc5d0 \uc704\uce58\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n2.2 MainActivity \ud074\ub798\uc2a4 \ub9cc\ub4e4\uae30<\/h3>\n\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
\uc774\uc81c MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
MainActivity.java<\/code> \ud30c\uc77c\uc744 \ub9cc\ub4e4\uc5b4\uc11c \uae30\ubcf8 \ub85c\uc9c1\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\npackage com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
package com.example.myapp;\n\nimport androidx.appcompat.app.AppCompatActivity;\nimport android.os.Bundle;\n\npublic class MainActivity extends AppCompatActivity {\n @Override\n protected void onCreate(Bundle savedInstanceState) {\n super.onCreate(savedInstanceState);\n setContentView(R.layout.activity_main);\n }\n}<\/code><\/pre>\n\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
\uc704\uc758 \ucf54\ub4dc\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uae30\ubcf8 Activity \uad6c\uc870\ub85c, onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
onCreate<\/code> \uba54\uc11c\ub4dc\uc5d0\uc11c XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uc774 \ucf54\ub4dc\ub97c \ud1b5\ud574 Activity\uac00 \uc2e4\ud589\ub420 \ub54c, \uc6b0\ub9ac\uac00 \ub9cc\ub4e0 UI\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n3. FrameLayout\uc758 \ud65c\uc6a9 \uc0ac\ub840<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n3.1 \uad11\uace0 \ubc30\ub108 \ud45c\uc2dc<\/h3>\n\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n3.2 Loading \uc2a4\ud53c\ub108 \ud45c\uc2dc<\/h3>\n\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4. FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3\uc758 \ube44\uad50<\/h2>\nFrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n4.1 LinearLayout<\/h3>\nLinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.2 RelativeLayout<\/h3>\nRelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5. \uc131\ub2a5 \ucd5c\uc801\ud654 \uace0\ub824\uc0ac\ud56d<\/h2>\nFrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n5.1 View Hierarchy<\/h3>\n\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n5.2 \ubd88\ud544\uc694\ud55c \ubdf0 \uc228\uae30\uae30<\/h3>\n\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n7. \ucd94\uac00 \ud559\uc2b5 \uc790\ub8cc<\/h3>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\n\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\n\uc548\ub4dc\ub85c\uc774\ub4dc \uad50\uc721 \uc790\ub8cc<\/a><\/li>\nUdacity \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790 \ub098\ub178\ub514\uadf8\ub9ac<\/a><\/li>\n<\/ul>\n
FrameLayout\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc0ac\ub840\ub97c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc571 \ud654\uba74\uc758 \uc0c1\ub2e8\uc5d0 \uad11\uace0 \ubc30\ub108\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad11\uace0 \ubdf0\uc640 \ucf58\ud150\uce20 \ubdf0\ub97c \uacb9\uccd0 \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\ub370\uc774\ud130 \ub85c\ub529 \uc2dc, FrameLayout\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub85c\ub529 \uc2a4\ud53c\ub108\ub97c \uc571 \ucf58\ud150\uce20 \uc704\uc5d0 \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc0ac\uc6a9\uc790\uac00 \uc571\uc744 \uc0ac\uc6a9\ud558\uba74\uc11c \ub370\uc774\ud130\uac00 \ub85c\ub4dc\ub418\ub294 \ub3d9\uc548 \uc2dc\uac01\uc801\uc73c\ub85c \ub85c\ub529 \uc911\uc784\uc744 \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\uc2dc\ud560 \uc218 \uc788\uc9c0\ub9cc, \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc744 \ub9cc\ub4e4\uae30\uc5d0\ub294 \uc81c\ud55c\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 FrameLayout\uacfc \ub2e4\ub978 \ub808\uc774\uc544\uc6c3 \uac04\uc758 \ube44\uad50\uc785\ub2c8\ub2e4.<\/p>\n
LinearLayout\uc740 \uc790\uc2dd \ubdf0\ub97c \uc138\ub85c \ub610\ub294 \uac00\ub85c\ub85c \ub098\uc5f4\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\ud558\uae30 \uac04\ub2e8\ud558\uc9c0\ub9cc, \uacb9\uccd0\uc11c \ubc30\uce58\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc810\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
RelativeLayout\uc740 \uc790\uc2dd \ubdf0 \uac04\uc758 \uc0c1\ub300\uc801\uc778 \uc704\uce58\ub97c \uc124\uc815\ud558\uc5ec \ubc30\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c \ub808\uc774\uc544\uc6c3\uc5d0\ub3c4 \uc801\ud569\ud558\uc9c0\ub9cc, \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
FrameLayout\uc744 \uc0ac\uc6a9\ud560 \ub54c \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \uba87 \uac00\uc9c0 \uace0\ub824\uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\ubdf0 \uacc4\uce35 \uad6c\uc870\uac00 \uae4a\uc5b4\uc9c8\uc218\ub85d \uc131\ub2a5\uc5d0 \ubd80\uc815\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac00\ub2a5\ud55c \ud55c \ud3c9\ud3c9\ud55c \uacc4\uce35 \uad6c\uc870\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \ubdf0\ub294 GONE \uc0c1\ud0dc\ub85c \uc124\uc815\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc\uc758 FrameLayout\uc744 \ud65c\uc6a9\ud558\uc5ec \uacb9\uccd0\uc11c \ubdf0\ub97c \ubc30\uce58\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. FrameLayout\uc740 \uac04\ub2e8\ud55c \uad6c\uc870\ub85c \ubdf0\ub97c \uacb9\uccd0\uc11c \ud45c\ud604\ud558\ub294 \ub370 \uc720\uc6a9\ud558\uba70, \uad11\uace0 \ubc30\ub108, \ub85c\ub529 \uc2a4\ud53c\ub108 \ub4f1 \ub2e4\uc591\ud55c \uc0ac\ub840\uc5d0 \ud65c\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc124\uacc4\ud560 \ub54c, \uc5ec\ub7ec \ub808\uc774\uc544\uc6c3\uc744 \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uc5ec \ucd5c\uc801\uc758 UI\/UX\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\uc2dc\ub2e4.<\/p>\n
\uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \ub354 \ub9ce\uc740 \uc790\ub8cc\ub97c \uc6d0\ud558\uc2dc\uba74 \ub2e4\uc74c\uc758 \ub9c1\ud06c\ub97c \ucc38\uace0\ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n