\n1. \uc11c\ub860<\/h2>\n
\n \uc624\ub298\ub0a0, \ubaa8\ubc14\uc77c \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\uc5d0\uc11c \ud074\ub77c\uc6b0\ub4dc \uae30\ub2a5\uc740 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uc548\ub4dc\ub85c\uc774\ub4dc \uac1c\ubc1c\uc790\ub77c\uba74 \ucf54\ub4dc\ub97c \uc791\uc131\ud558\ub294 \uac83\ubfd0\ub9cc \uc544\ub2c8\ub77c \uc0ac\uc6a9\uc790\uc758 \ub370\uc774\ud130\ub97c \uc548\uc804\ud558\uac8c \uad00\ub9ac\ud558\uace0,
\n \uc571\uc758 \uae30\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \ud074\ub77c\uc6b0\ub4dc \uc11c\ube44\uc2a4\ub97c \uc774\ud574\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774 \uac15\uc88c\uc5d0\uc11c\ub294 Google\uc758 Firebase\ub97c \ud65c\uc6a9\ud558\uc5ec
\n \ucf54\ud2c0\ub9b0\uc73c\ub85c \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc744 \uac1c\ubc1c\ud558\ub294 \ubc29\ubc95\uc744 \uae4a\uc774 \uc788\uac8c \ub2e4\ub904\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\n Firebase\ub294 \ub2e4\uc591\ud55c \ud074\ub77c\uc6b0\ub4dc \uae30\ubc18 \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud558\uba70, \ud2b9\ud788 \uc2e4\uc2dc\uac04 \ub370\uc774\ud130\ubca0\uc774\uc2a4, \uc778\uc99d, \ud638\uc2a4\ud305, \uc2a4\ud1a0\ub9ac\uc9c0, \ubd84\uc11d \ub4f1\uc758 \uae30\ub2a5\uc774 \ub9e4\uc6b0 \uc720\uc6a9\ud569\ub2c8\ub2e4.
\n \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 Firebase\uc758 \uae30\ubcf8 \uac1c\ub150\uc744 \uc774\ud574\ud558\uace0, \ucf54\ud2c0\ub9b0\uc744 \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c \uc548\ub4dc\ub85c\uc774\ub4dc \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc744 \ubc30\uc6cc\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n<\/section>\n\n2. Firebase\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n
\n Firebase\ub294 Google\uc5d0\uc11c \uc81c\uacf5\ud558\ub294 \ubaa8\ubc14\uc77c \ubc0f \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c \ud50c\ub7ab\ud3fc\uc785\ub2c8\ub2e4.
\n Firebase\ub294 \uc11c\ubc84\ub9ac\uc2a4 \uc544\ud0a4\ud14d\ucc98\ub97c \uc81c\uacf5\ud558\uba70, \uac1c\ubc1c\uc790\ub4e4\uc774 \ube60\ub974\uace0 \uc27d\uac8c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4e4\uace0 \ubc30\ud3ec\ud560 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc90d\ub2c8\ub2e4. \uc8fc\uc694 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:\n <\/p>\n
\n- \uc2e4\uc2dc\uac04 \ub370\uc774\ud130\ubca0\uc774\uc2a4:<\/strong> \ub370\uc774\ud130\uc758 \uc2e4\uc2dc\uac04 \ub3d9\uae30\ud654\uc640 \uc800\uc7a5\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/li>\n
- Authentication:<\/strong> \uc0ac\uc6a9\uc790 \uc778\uc99d \ubc0f \uad00\ub9ac\ub97c \uac04\ud3b8\ud558\uac8c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n
- Cloud Functions:<\/strong> \uc11c\ubc84\uc0ac\uc774\ub4dc \ub85c\uc9c1\uc744 \ud074\ub77c\uc6b0\ub4dc\uc5d0\uc11c \uc2e4\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n
- Hosting:<\/strong> \uc815\uc801 \uc6f9 \ud638\uc2a4\ud305\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/li>\n
- Analytics:<\/strong> \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc0ac\uc6a9 \ubd84\uc11d \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/section>\n\n
3. \ud504\ub85c\uc81d\ud2b8 \uc124\uc815\ud558\uae30<\/h2>\n3.1 Firebase \ud504\ub85c\uc81d\ud2b8 \uc0dd\uc131\ud558\uae30<\/h3>\n
\n Firebase\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 Firebase Console\uc5d0\uc11c \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud574\uc57c \ud569\ub2c8\ub2e4.
\n \ub2e4\uc74c \ub2e8\uacc4\ub97c \ub530\ub77c Firebase \ud504\ub85c\uc81d\ud2b8\ub97c \ub9cc\ub4ed\ub2c8\ub2e4:\n <\/p>\n
\n- Firebase Console\uc5d0 \ub85c\uadf8\uc778\ud569\ub2c8\ub2e4.<\/li>\n
- \u2018Add Project\u2019\ub97c \ud074\ub9ad\ud558\uc5ec \uc0c8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\n
- \ud504\ub85c\uc81d\ud2b8 \uc774\ub984\uc744 \uc785\ub825\ud558\uace0, Google Analytics\ub97c \ud65c\uc131\ud654\ud560\uc9c0 \uc120\ud0dd\ud569\ub2c8\ub2e4.<\/li>\n
- \uc774\ud6c4 \u2018Create Project\u2019\ub97c \ud074\ub9ad\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n
3.2 \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \ucd94\uac00\ud558\uae30<\/h3>\n
\n Firebase \ud504\ub85c\uc81d\ud2b8\ub97c \ub9cc\ub4e4\uc5c8\ub2e4\uba74, \uc774\uc81c \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc744 Firebase\uc5d0 \ucd94\uac00\ud569\ub2c8\ub2e4.
\n \uc571 \ud328\ud0a4\uc9c0 \uc774\ub984, \uc571 \ub2c9\ub124\uc784 \ub4f1\uc744 \uc785\ub825\ud558\uace0, \u2018Register App\u2019 \ubc84\ud2bc\uc744 \ud074\ub9ad\ud569\ub2c8\ub2e4.\n <\/p>\n
\n Firebase\uc5d0\uc11c\ub294 google-services.json \ud30c\uc77c\uc744 \ub2e4\uc6b4\ub85c\ub4dc\ud558\uc5ec Android \ud504\ub85c\uc81d\ud2b8\uc758 app \ud3f4\ub354\uc5d0 \ub123\uc5b4\uc57c \ud569\ub2c8\ub2e4.
\n \uc774 \ud30c\uc77c\uc740 Firebase\uc640 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac04\uc758 \ud1b5\uc2e0\uc744 \uc124\uc815\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \ub2e4\uc74c\uc758 Gradle \uc124\uc815\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4:\n <\/p>\n
dependencies {\n \/\/ Firebase Analytics\n implementation platform('com.google.firebase:firebase-bom:32.0.0')\n implementation 'com.google.firebase:firebase-analytics-ktx'\n}\n<\/code><\/pre>\n<\/section>\n\n4. Firebase \uae30\ub2a5 \ub2e4\ub8e8\uae30<\/h2>\n
\n \uc774\ubc88 \uc139\uc158\uc5d0\uc11c\ub294 Firebase\uc758 \uc8fc\uc694 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc2e4\uc81c\ub85c \uac04\ub2e8\ud55c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc81c\uc791\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.
\n \uc6b0\ub9ac\ub294 Firebase Realtime Database\uc640 Authentication \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud560 \uac83\uc785\ub2c8\ub2e4.\n <\/p>\n
4.1 Firebase Authentication \uc0ac\uc6a9\ud558\uae30<\/h3>\n
\n Firebase Authentication\uc740 \uc0ac\uc6a9\uc790 \uc778\uc99d\uc744 \uc27d\uac8c \ucc98\ub9ac\ud560 \uc218 \uc788\ub294 \ubc29\ubc95\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.
\n \uc774\ubc88 \uc608\uc81c\uc5d0\uc11c\ub294 \uc774\uba54\uc77c\/\ube44\ubc00\ubc88\ud638 \uc778\uc99d\uc744 \uc0ac\uc6a9\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\n \uba3c\uc800 Firebase \ucf58\uc194\uc758 Authentication \uc139\uc158\uc73c\ub85c \uac00\uc11c ‘Sign-in Method’\uc5d0\uc11c ‘Email\/Password’ \uc635\uc158\uc744 \ud65c\uc131\ud654\ud569\ub2c8\ub2e4.
\n \uadf8\ub7f0 \ub2e4\uc74c \uc544\ub798\uc758 \ucf54\ub4dc\ub97c \ud1b5\ud574 \uc0ac\uc6a9\uc790 \ub4f1\ub85d \ubc0f \ub85c\uadf8\uc778\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4.\n <\/p>\n
class LoginActivity : AppCompatActivity() {\n \n private lateinit var auth: FirebaseAuth\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_login)\n\n auth = FirebaseAuth.getInstance()\n\n val loginButton: Button = findViewById(R.id.loginButton)\n loginButton.setOnClickListener { login() }\n\n val registerButton: Button = findViewById(R.id.registerButton)\n registerButton.setOnClickListener { register() }\n }\n\n private fun login() {\n val email = findViewById(R.id.emailEditText).text.toString()\n val password = findViewById(R.id.passwordEditText).text.toString()\n\n auth.signInWithEmailAndPassword(email, password)\n .addOnCompleteListener(this) { task ->\n if (task.isSuccessful) {\n val user = auth.currentUser\n Toast.makeText(baseContext, \"\ub85c\uadf8\uc778 \uc131\uacf5: ${user?.email}\", Toast.LENGTH_SHORT).show()\n } else {\n Toast.makeText(baseContext, \"\ub85c\uadf8\uc778 \uc2e4\ud328\", Toast.LENGTH_SHORT).show()\n }\n }\n }\n\n private fun register() {\n val email = findViewById(R.id.emailEditText).text.toString()\n val password = findViewById(R.id.passwordEditText).text.toString()\n\n auth.createUserWithEmailAndPassword(email, password)\n .addOnCompleteListener(this) { task ->\n if (task.isSuccessful) {\n Toast.makeText(baseContext, \"\ud68c\uc6d0\uac00\uc785 \uc131\uacf5\", Toast.LENGTH_SHORT).show()\n } else {\n Toast.makeText(baseContext, \"\ud68c\uc6d0\uac00\uc785 \uc2e4\ud328\", Toast.LENGTH_SHORT).show()\n }\n }\n }\n}\n<\/edittext><\/edittext><\/edittext><\/edittext><\/code><\/pre>\n4.2 Firebase Realtime Database \uc0ac\uc6a9\ud558\uae30<\/h3>\n
\n Firebase Realtime Database\ub294 JSON \ub370\uc774\ud130\ub97c \uc2e4\uc2dc\uac04\uc73c\ub85c \uc800\uc7a5\ud558\uace0 \ub3d9\uae30\ud654\ud560 \uc218 \uc788\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc785\ub2c8\ub2e4.
\n \uc774\ubc88 \uc608\uc81c\uc5d0\uc11c\ub294 \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc800\uc7a5\ud558\uace0 \ubd88\ub7ec\uc624\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n
\n \uba3c\uc800 Firebase \ucf58\uc194\uc5d0\uc11c Realtime Database\ub97c \uc0dd\uc131\ud558\uace0, \uaddc\uce59\uc744 \ub2e4\uc74c\uacfc \uac19\uc774 \uc124\uc815\ud569\ub2c8\ub2e4:\n <\/p>\n
{\n \"rules\": {\n \".read\": \"auth != null\",\n \".write\": \"auth != null\"\n }\n}\n<\/code><\/pre>\n\n \uadf8 \ub2e4\uc74c \uac04\ub2e8\ud55c \ub370\uc774\ud130\ub97c \ucd94\uac00\ud558\uace0 \uc77d\uc5b4\uc624\ub294 \ucf54\ub4dc\ub97c \uc791\uc131\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n
class DatabaseActivity : AppCompatActivity() {\n\n private lateinit var database: DatabaseReference\n\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_database)\n\n database = FirebaseDatabase.getInstance().getReference(\"users\")\n }\n\n private fun saveUser(name: String, email: String) {\n val userId = database.push().key\n val user = User(userId, name, email)\n\n database.child(userId!!).setValue(user)\n .addOnSuccessListener { Log.d(\"Database\", \"\ub370\uc774\ud130 \uc800\uc7a5 \uc131\uacf5\") }\n .addOnFailureListener { Log.d(\"Database\", \"\ub370\uc774\ud130 \uc800\uc7a5 \uc2e4\ud328\") }\n }\n\n private fun loadUsers() {\n database.addValueEventListener(object : ValueEventListener {\n override fun onDataChange(dataSnapshot: DataSnapshot) {\n for (snapshot in dataSnapshot.children) {\n val user = snapshot.getValue(User::class.java)\n Log.d(\"Database\", \"\uc0ac\uc6a9\uc790: ${user?.name}, \uc774\uba54\uc77c: ${user?.email}\")\n }\n }\n\n override fun onCancelled(databaseError: DatabaseError) {\n Log.e(\"Database\", \"\ub370\uc774\ud130 \ubd88\ub7ec\uc624\uae30 \uc624\ub958: ${databaseError.message}\")\n }\n })\n }\n}\n\ndata class User(val id: String? = null, val name: String? = null, val email: String? = null)\n<\/code><\/pre>\n<\/section>\n\n5. \uc2e4\uc2b5 \uc608\uc81c<\/h2>\n
\n \uc9c0\uae08\uae4c\uc9c0 \ubc30\uc6b4 \ub0b4\uc6a9\uc744 \ubc14\ud0d5\uc73c\ub85c \uac04\ub2e8\ud55c \uc0ac\uc6a9\uc790 \ub4f1\ub85d \ubc0f \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.
\n \uc804\uccb4\uc801\uc778 \ud750\ub984\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:\n <\/p>\n
\n- \uc0ac\uc6a9\uc790\uac00 \uc774\uba54\uc77c\uacfc \ube44\ubc00\ubc88\ud638\ub85c \ud68c\uc6d0\uac00\uc785\uc744 \ud569\ub2c8\ub2e4.<\/li>\n
- \ud68c\uc6d0\uac00\uc785 \ud6c4 \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c Firebase Realtime Database\uc5d0 \uc800\uc7a5\ud569\ub2c8\ub2e4.<\/li>\n
- \uc800\uc7a5\ub41c \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \ubd88\ub7ec\uc640 \ubaa9\ub85d\uc73c\ub85c \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/li>\n<\/ol>\n
\n GUI\ub294 Activity\uc640 Layout \ud30c\uc77c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uad6c\uc131\ud569\ub2c8\ub2e4.
\n \uc544\ub798\uc758 XML \ucf54\ub4dc\ub85c \ub808\uc774\uc544\uc6c3\uc744 \uc124\uc815\ud558\uace0 Activity\uc5d0\uc11c \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ucc98\ub9ac\ud569\ub2c8\ub2e4.\n <\/p>\n
<LinearLayout xmlns:android=\"http:\/\/schemas.android.com\/apk\/res\/android\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"match_parent\"\n android:orientation=\"vertical\">\n\n <EditText\n android:id=\"@+id\/emailEditText\"\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\/passwordEditText\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:hint=\"\ube44\ubc00\ubc88\ud638\"\n android:inputType=\"textPassword\" \/>\n\n <Button\n android:id=\"@+id\/registerButton\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"\ud68c\uc6d0\uac00\uc785\" \/>\n\n <Button\n android:id=\"@+id\/loginButton\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\"\n android:text=\"\ub85c\uadf8\uc778\" \/>\n\n <TextView\n android:id=\"@+id\/userListTextView\"\n android:layout_width=\"match_parent\"\n android:layout_height=\"wrap_content\"\n android:text=\"\uc0ac\uc6a9\uc790 \ubaa9\ub85d\"\/>\n<\/LinearLayout>\n<\/code><\/pre>\n<\/section>\n\n6. \uacb0\ub860<\/h2>\n
\n Firebase\ub294 \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0 \ub9ce\uc740 \uc774\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uad00\ub9ac, \uc0ac\uc6a9\uc790 \uc778\uc99d, \ud074\ub77c\uc6b0\ub4dc \uae30\ub2a5 \ub4f1\uc744 \uc27d\uac8c \uad6c\ud604\ud560 \uc218 \uc788\uc5b4
\n \uac1c\ubc1c \uc2dc\uac04\uacfc \ub178\ub825\uc744 \ub300\ud3ed \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\n \uc9c0\ub09c \uba87 \uac00\uc9c0 \uc608\uc81c\ub97c \ud1b5\ud574 Firebase\uc758 \uae30\ubcf8\uc801\uc778 \uc0ac\uc6a9\ubc95\uacfc \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud55c \uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c \uc808\ucc28\ub97c \uc774\ud574\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\uc5c8\uae30\ub97c \ubc14\ub78d\ub2c8\ub2e4.\n <\/p>\n
\n \uc55e\uc73c\ub85c\ub3c4 Firebase\uc758 \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ub354 \uc775\ud788\uace0 \ud65c\uc6a9\ud558\uc5ec, \ub354\uc6b1 \ud48d\ubd80\ud558\uace0 \uc0ac\uc6a9\uc790 \uce5c\ud654\uc801\uc778 \ubaa8\ubc14\uc77c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \uc218 \uc788\uae38 \ubc14\ub78d\ub2c8\ub2e4.\n <\/p>\n<\/section>\n