\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c \ud68c\uc6d0\uac00\uc785\uacfc \ub85c\uadf8\uc778 \uae30\ub2a5\uc744 \uc5b4\ub5bb\uac8c \uad6c\ud604\ud558\ub294\uc9c0\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc6b0\ub9ac\ub294 \uae30\ubcf8\uc801\uc778 \ud654\uba74 \uad6c\uc131\ubd80\ud130 \uc2dc\uc791\ud558\uc5ec, \uc0ac\uc6a9\uc790 \uc815\ubcf4 \ucc98\ub9ac, \uc11c\ubc84\uc640\uc758 \ud1b5\uc2e0, \uadf8\ub9ac\uace0 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc800\uc7a5\uae4c\uc9c0 \ub2e4\uc591\ud55c \ub0b4\uc6a9\uc744 \ub2e4\ub8f0 \uac83\uc785\ub2c8\ub2e4. \ucd5c\uc885\uc801\uc73c\ub85c\ub294 \uac04\ub2e8\ud55c \uc608\uc81c \uc571\uc744 \ud1b5\ud574 \uc2e4\uc81c\ub85c \uc791\ub3d9\ud558\ub294 \ud68c\uc6d0\uac00\uc785 \ubc0f \ub85c\uadf8\uc778 \uae30\ub2a5\uc744 \uad6c\ud604\ud560 \uc218 \uc788\ub3c4\ub85d \ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n
\uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc744 \uc704\ud574\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ub3c4\uad6c\ub4e4\uc774 \ud544\uc694\ud569\ub2c8\ub2e4:<\/p>\n
\uc774 \uc678\uc5d0\ub3c4 \uc6b0\ub9ac\uac00 \uc0ac\uc6a9\ud560 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub4e4\uc744 Gradle\uc5d0 \ucd94\uac00\ud560 \uac83\uc785\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub3c4\uad6c\ub4e4\uc774 \uc124\uce58\ub41c \ud6c4, Android Studio\ub97c \uc2e4\ud589\ud558\uace0 \uc0c8\ub85c\uc6b4 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n
\uc0c8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud560 \ub54c, Empty Activity<\/strong> \ud15c\ud50c\ub9bf\uc744 \uc120\ud0dd\ud558\uace0, \uc5b8\uc5b4\ub85c Kotlin<\/strong>\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4. \ud328\ud0a4\uc9c0 \uc774\ub984\uacfc \uc800\uc7a5 \uacbd\ub85c\ub97c \uc124\uc815\ud55c \ud6c4 Finish<\/strong> \ubc84\ud2bc\uc744 \ud074\ub9ad\ud558\uc5ec \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n \ud68c\uc6d0\uac00\uc785\uacfc \ub85c\uadf8\uc778 \ud654\uba74\uc744 \uad6c\uc131\ud558\uae30 \uc704\ud574\uc11c \ub450 \uac00\uc9c0 XML \ub808\uc774\uc544\uc6c3 \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uac01\uac01\uc758 \ub808\uc774\uc544\uc6c3\uc740 EditText\uc640 Button\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4.<\/p>\n \ud68c\uc6d0\uac00\uc785 \uae30\ub2a5\uc744 \uad6c\ud604\ud558\uae30 \uc704\ud574 SignupActivity.kt<\/strong> \ud30c\uc77c\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc774 \ud30c\uc77c\uc5d0\ub294 \uc0ac\uc6a9\uc790\uc758 \uc774\uba54\uc77c\uacfc \ube44\ubc00\ubc88\ud638\ub97c \uc785\ub825 \ubc1b\uace0 \uc774\ub97c \ucc98\ub9ac\ud558\ub294 \ub85c\uc9c1\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/p>\n \ub85c\uadf8\uc778 \uae30\ub2a5\ub3c4 \ube44\uc2b7\ud55c \ubc29\uc2dd\uc73c\ub85c \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. LoginActivity.kt<\/strong> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0 \uc544\ub798\uc640 \uac19\uc740 \ucf54\ub4dc\ub97c \uc791\uc131\ud569\ub2c8\ub2e4.<\/p>\n \ud68c\uc6d0\uac00\uc785 \ub610\ub294 \ub85c\uadf8\uc778 \uc2dc \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\uae30 \uc704\ud574 \uc11c\ubc84\ub97c \uad6c\ucd95\ud558\uac70\ub098 Firebase\uc640 \uac19\uc740 \ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 Firebase\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud558\uac8c \uad6c\ud604\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n Firebase\uc758 Authentication \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\uae30 \uc704\ud574 Firebase \ucf58\uc194\uc5d0\uc11c \ud504\ub85c\uc81d\ud2b8\ub97c \ub9cc\ub4e4\uace0, \uc571\uacfc \uc5f0\uacb0\ud569\ub2c8\ub2e4. Firebase SDK\ub97c Gradle\uc5d0 \ucd94\uac00\ud558\uace0, Firebase Authentication\uc744 \ud65c\uc131\ud654\ud569\ub2c8\ub2e4.<\/p>\n \uc774\uc81c Firebase Authentication\uc744 \uc0ac\uc6a9\ud558\uc5ec \ud68c\uc6d0\uac00\uc785\uacfc \ub85c\uadf8\uc778 \uae30\ub2a5\uc744 \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c \ud68c\uc6d0\uac00\uc785\uacfc \ub85c\uadf8\uc778 \uae30\ub2a5\uc744 \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \uc548\ub4dc\ub85c\uc774\ub4dc\uc640 Firebase\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc548\uc804\ud558\uac8c \ucc98\ub9ac\ud558\uace0 \ud3b8\ub9ac\ud55c \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub354 \ub9ce\uc740 \uae30\ub2a5\uc744 \ucd94\uac00\ud558\uc5ec \ubcf8\uc778\uc758 \uc571\uc744 \ub354\uc6b1 \ud655\uc7a5\ud574 \ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n \ucd94\uac00\uc801\uc73c\ub85c, \uc774 \uc608\uc81c\ub97c \ud1b5\ud574 \uae30\ubcf8\uc801\uc778 \uc571 \uad6c\uc870\uc640 Firebase\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc744 \uc775\ud790 \uc218 \uc788\uc5c8\uc73c\uba70, \uc774\ub97c \ubc14\ud0d5\uc73c\ub85c \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ucd94\uac00\ud558\uc5ec \ubc1c\uc804\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc758 \uc138\uacc4\uc5d0 \uc624\uc2e0 \uac83\uc744 \ud658\uc601\ud558\uba70, \uc990\uac70\uc6b4 \ucf54\ub529 \ub418\uc2dc\uae38 \ubc14\ub78d\ub2c8\ub2e4!<\/p>\n <\/body><\/p>\n","protected":false},"excerpt":{"rendered":"3. \ub808\uc774\uc544\uc6c3 \uad6c\uc131<\/h2>\n
\ub85c\uadf8\uc778 \ud654\uba74 \ub808\uc774\uc544\uc6c3 (login_activity.xml)<\/h3>\n
\n
\n <?xml version=\"1.0\" encoding=\"utf-8\"?>\n <RelativeLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <EditText\n android:id=\"@+id\/editTextEmail\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:hint=\"\uc774\uba54\uc77c\" \/>\n\n <EditText\n android:id=\"@+id\/editTextPassword\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:hint=\"\ube44\ubc00\ubc88\ud638\"\n android:layout_below=\"@+id\/editTextEmail\"\n android:inputType=\"textPassword\" \/>\n\n <Button\n android:id=\"@+id\/buttonLogin\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:text=\"\ub85c\uadf8\uc778\"\n android:layout_below=\"@+id\/editTextPassword\" \/>\n\n <TextView\n android:id=\"@+id\/textViewSignUp\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"\uacc4\uc815\uc774 \uc5c6\uc73c\uc2e0\uac00\uc694? \ud68c\uc6d0\uac00\uc785\ud558\uae30\"\n android:layout_below=\"@+id\/buttonLogin\"\n android:layout_marginTop=\"16dp\"\n android:clickable=\"true\" \/>\n\n <\/RelativeLayout>\n <\/code>\n <\/pre>\n\ud68c\uc6d0\uac00\uc785 \ud654\uba74 \ub808\uc774\uc544\uc6c3 (signup_activity.xml)<\/h3>\n
\n
\n <?xml version=\"1.0\" encoding=\"utf-8\"?>\n <RelativeLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\">\n\n <EditText\n android:id=\"@+id\/editTextEmail\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:hint=\"\uc774\uba54\uc77c\" \/>\n\n <EditText\n android:id=\"@+id\/editTextPassword\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:hint=\"\ube44\ubc00\ubc88\ud638\"\n android:layout_below=\"@+id\/editTextEmail\"\n android:inputType=\"textPassword\" \/>\n\n <Button\n android:id=\"@+id\/buttonSignUp\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:text=\"\ud68c\uc6d0\uac00\uc785\"\n android:layout_below=\"@+id\/editTextPassword\" \/>\n\n <\/RelativeLayout>\n <\/code>\n <\/pre>\n4. \ud68c\uc6d0\uac00\uc785 \uae30\ub2a5 \uad6c\ud604<\/h2>\n
\n
\n package com.example.yourapp\n\n import android.content.Intent\n import android.os.Bundle\n import android.widget.Button\n import android.widget.EditText\n import android.widget.Toast\n import androidx.appcompat.app.AppCompatActivity\n\n class SignupActivity : AppCompatActivity() {\n\n private lateinit var editTextEmail: EditText\n private lateinit var editTextPassword: EditText\n private lateinit var buttonSignUp: Button\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.signup_activity)\n\n editTextEmail = findViewById(R.id.editTextEmail)\n editTextPassword = findViewById(R.id.editTextPassword)\n buttonSignUp = findViewById(R.id.buttonSignUp)\n\n buttonSignUp.setOnClickListener {\n val email = editTextEmail.text.toString()\n val password = editTextPassword.text.toString()\n\n if (email.isNotEmpty() && password.isNotEmpty()) {\n \/\/ TODO: \uc5ec\uae30\uc5d0 \uc11c\ubc84\uc640\uc758 \ud1b5\uc2e0 \uc791\uc5c5 \ucd94\uac00\n \/\/ \uc608\uc2dc: \ud68c\uc6d0\uac00\uc785 \uc131\uacf5 \uc2dc \ub85c\uadf8\uc778 \ud654\uba74\uc73c\ub85c \uc774\ub3d9\n Toast.makeText(this, \"\ud68c\uc6d0\uac00\uc785 \uc131\uacf5\", Toast.LENGTH_SHORT).show()\n startActivity(Intent(this, LoginActivity::class.java))\n } else {\n Toast.makeText(this, \"\ubaa8\ub4e0 \ud544\ub4dc\ub97c \uc785\ub825\ud558\uc138\uc694\", Toast.LENGTH_SHORT).show()\n }\n }\n }\n }\n <\/code>\n <\/pre>\n5. \ub85c\uadf8\uc778 \uae30\ub2a5 \uad6c\ud604<\/h2>\n
\n
\n package com.example.yourapp\n\n import android.content.Intent\n import android.os.Bundle\n import android.widget.Button\n import android.widget.EditText\n import android.widget.Toast\n import androidx.appcompat.app.AppCompatActivity\n\n class LoginActivity : AppCompatActivity() {\n\n private lateinit var editTextEmail: EditText\n private lateinit var editTextPassword: EditText\n private lateinit var buttonLogin: Button\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.login_activity)\n\n editTextEmail = findViewById(R.id.editTextEmail)\n editTextPassword = findViewById(R.id.editTextPassword)\n buttonLogin = findViewById(R.id.buttonLogin)\n\n buttonLogin.setOnClickListener {\n val email = editTextEmail.text.toString()\n val password = editTextPassword.text.toString()\n\n if (email.isNotEmpty() && password.isNotEmpty()) {\n \/\/ TODO: \uc5ec\uae30\uc5d0 \uc11c\ubc84\uc640\uc758 \ud1b5\uc2e0 \ub85c\uc9c1 \ucd94\uac00\n \/\/ \uc131\uacf5 \uc2dc \ub2e4\uc74c \ud654\uba74\uc73c\ub85c \uc774\ub3d9, \uc2e4\ud328 \uc2dc \uc624\ub958 \uba54\uc2dc\uc9c0 \ud45c\uc2dc\n Toast.makeText(this, \"\ub85c\uadf8\uc778 \uc131\uacf5\", Toast.LENGTH_SHORT).show()\n \/\/ \ub2e4\uc74c \ud654\uba74\uc73c\ub85c \uc774\ub3d9 \ucf54\ub4dc \ucd94\uac00\n } else {\n Toast.makeText(this, \"\ubaa8\ub4e0 \ud544\ub4dc\ub97c \uc785\ub825\ud558\uc138\uc694\", Toast.LENGTH_SHORT).show()\n }\n }\n }\n }\n <\/code>\n <\/pre>\n6. \ub370\uc774\ud130 \uc800\uc7a5 \ubc0f \uad00\ub9ac<\/h2>\n
Firebase \uc124\uc815<\/h3>\n
\n
\n \/\/ build.gradle (app-level)\n dependencies {\n implementation 'com.google.firebase:firebase-auth-ktx:21.0.1'\n }\n <\/code>\n <\/pre>\n\ud68c\uc6d0\uac00\uc785 \ubc0f \ub85c\uadf8\uc778 \uae30\ub2a5 \uac1c\uc120<\/h3>\n
\n
\n \/\/ SignupActivity.kt\n import com.google.firebase.auth.FirebaseAuth\n\n class SignupActivity : AppCompatActivity() {\n \/\/ ...\n private lateinit var auth: FirebaseAuth\n\n override fun onCreate(savedInstanceState: Bundle?) {\n \/\/ ...\n auth = FirebaseAuth.getInstance()\n\n buttonSignUp.setOnClickListener {\n \/\/ ...\n auth.createUserWithEmailAndPassword(email, password)\n .addOnCompleteListener(this) { task ->\n if (task.isSuccessful) {\n Toast.makeText(this, \"\ud68c\uc6d0\uac00\uc785 \uc131\uacf5\", Toast.LENGTH_SHORT).show()\n startActivity(Intent(this, LoginActivity::class.java))\n } else {\n Toast.makeText(this, \"\ud68c\uc6d0\uac00\uc785 \uc2e4\ud328\", Toast.LENGTH_SHORT).show()\n }\n }\n }\n }\n }\n <\/code>\n <\/pre>\n\n
\n \/\/ LoginActivity.kt\n import com.google.firebase.auth.FirebaseAuth\n\n class LoginActivity : AppCompatActivity() {\n \/\/ ...\n private lateinit var auth: FirebaseAuth\n\n override fun onCreate(savedInstanceState: Bundle?) {\n \/\/ ...\n auth = FirebaseAuth.getInstance()\n\n buttonLogin.setOnClickListener {\n \/\/ ...\n auth.signInWithEmailAndPassword(email, password)\n .addOnCompleteListener(this) { task ->\n if (task.isSuccessful) {\n Toast.makeText(this, \"\ub85c\uadf8\uc778 \uc131\uacf5\", Toast.LENGTH_SHORT).show()\n \/\/ \ub2e4\uc74c \ud654\uba74\uc73c\ub85c \uc774\ub3d9\n } else {\n Toast.makeText(this, \"\ub85c\uadf8\uc778 \uc2e4\ud328\", Toast.LENGTH_SHORT).show()\n }\n }\n }\n }\n }\n <\/code>\n <\/pre>\n7. \uacb0\ub860<\/h2>\n