\uc548\ub4dc\ub85c\uc774\ub4dc \uc571 \uac1c\ubc1c\uc5d0 \uc788\uc5b4 \ub370\uc774\ud130 \uc800\uc7a5\uc740 \ud544\uc218\uc801\uc778 \uc694\uc18c\uc785\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4(Cloud Firestore)\ub294 Google\uc758 Firebase \ud50c\ub7ab\ud3fc\uc758 \uc77c\ubd80\ub85c, NoSQL \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub85c\uc11c \uc2e4\uc2dc\uac04 \ub370\uc774\ud130 \uc800\uc7a5, \ub3d9\uae30\ud654 \ubc0f \uad00\ub9ac\uac00 \uac00\ub2a5\ud558\uac8c \ud574\uc90d\ub2c8\ub2e4. \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
Firebase\ub294 \ubaa8\ubc14\uc77c \ubc0f \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\uc744 \uc704\ud55c \uc885\ud569 \ud50c\ub7ab\ud3fc\uc73c\ub85c, \uc778\uc99d, \ub370\uc774\ud130 \uc800\uc7a5, \ud638\uc2a4\ud305, \ud074\ub77c\uc6b0\ub4dc \uae30\ub2a5 \ub4f1\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. Firestore\ub294 Firebase\uc758 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc11c\ube44\uc2a4\ub85c, \uad6c\uc870\ud654\ub41c \ub370\uc774\ud130 \uc800\uc7a5\uc774 \uac00\ub2a5\ud558\uba70, \uc2e4\uc2dc\uac04 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640 \uac19\uc740 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n
\uc548\ub4dc\ub85c\uc774\ub4dc \uc2a4\ud29c\ub514\uc624\uc5d0\uc11c \uc0c8\ub85c\uc6b4 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud55c \ud6c4, Firebase \ubc0f Firestore\ub97c \uc124\uc815\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
\ud504\ub85c\uc81d\ud2b8\uc758 build.gradle<\/code> \ud30c\uc77c\uc5d0 Firebase \ubc0f Firestore \uad00\ub828 \uc758\uc874\uc131\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4:<\/p>\ndependencies {\n implementation platform('com.google.firebase:firebase-bom:31.0.2')\n implementation 'com.google.firebase:firebase-firestore-ktx'\n implementation 'com.google.firebase:firebase-auth-ktx'\n }\n <\/code><\/pre>\n2.3 Firebase \ucd08\uae30\ud654<\/h3>\n\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc2dc\uc791\uc810\uc778 MainActivity<\/code>\uc5d0\uc11c Firebase\ub97c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.FirebaseApp\n \n class MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n FirebaseApp.initializeApp(this) \/\/ Firebase \ucd08\uae30\ud654\n }\n }\n <\/code><\/pre>\n3. Firestore \ub370\uc774\ud130 \uad6c\uc870<\/h2>\nFirestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n3.1 \ub370\uc774\ud130 \uc800\uc7a5 \uc608\uc81c<\/h3>\nFirestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
build.gradle<\/code> \ud30c\uc77c\uc5d0 Firebase \ubc0f Firestore \uad00\ub828 \uc758\uc874\uc131\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4:<\/p>\ndependencies {\n implementation platform('com.google.firebase:firebase-bom:31.0.2')\n implementation 'com.google.firebase:firebase-firestore-ktx'\n implementation 'com.google.firebase:firebase-auth-ktx'\n }\n <\/code><\/pre>\n2.3 Firebase \ucd08\uae30\ud654<\/h3>\n\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc2dc\uc791\uc810\uc778 MainActivity<\/code>\uc5d0\uc11c Firebase\ub97c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.FirebaseApp\n \n class MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n FirebaseApp.initializeApp(this) \/\/ Firebase \ucd08\uae30\ud654\n }\n }\n <\/code><\/pre>\n3. Firestore \ub370\uc774\ud130 \uad6c\uc870<\/h2>\nFirestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n3.1 \ub370\uc774\ud130 \uc800\uc7a5 \uc608\uc81c<\/h3>\nFirestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
dependencies {\n implementation platform('com.google.firebase:firebase-bom:31.0.2')\n implementation 'com.google.firebase:firebase-firestore-ktx'\n implementation 'com.google.firebase:firebase-auth-ktx'\n }\n <\/code><\/pre>\n2.3 Firebase \ucd08\uae30\ud654<\/h3>\n\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc2dc\uc791\uc810\uc778 MainActivity<\/code>\uc5d0\uc11c Firebase\ub97c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.FirebaseApp\n \n class MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n FirebaseApp.initializeApp(this) \/\/ Firebase \ucd08\uae30\ud654\n }\n }\n <\/code><\/pre>\n3. Firestore \ub370\uc774\ud130 \uad6c\uc870<\/h2>\nFirestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n3.1 \ub370\uc774\ud130 \uc800\uc7a5 \uc608\uc81c<\/h3>\nFirestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc2dc\uc791\uc810\uc778 MainActivity<\/code>\uc5d0\uc11c Firebase\ub97c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.FirebaseApp\n \n class MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n FirebaseApp.initializeApp(this) \/\/ Firebase \ucd08\uae30\ud654\n }\n }\n <\/code><\/pre>\n3. Firestore \ub370\uc774\ud130 \uad6c\uc870<\/h2>\nFirestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n3.1 \ub370\uc774\ud130 \uc800\uc7a5 \uc608\uc81c<\/h3>\nFirestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
MainActivity<\/code>\uc5d0\uc11c Firebase\ub97c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.FirebaseApp\n \n class MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n FirebaseApp.initializeApp(this) \/\/ Firebase \ucd08\uae30\ud654\n }\n }\n <\/code><\/pre>\n3. Firestore \ub370\uc774\ud130 \uad6c\uc870<\/h2>\nFirestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n3.1 \ub370\uc774\ud130 \uc800\uc7a5 \uc608\uc81c<\/h3>\nFirestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
import com.google.firebase.FirebaseApp\n \n class MainActivity : AppCompatActivity() {\n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n FirebaseApp.initializeApp(this) \/\/ Firebase \ucd08\uae30\ud654\n }\n }\n <\/code><\/pre>\n3. Firestore \ub370\uc774\ud130 \uad6c\uc870<\/h2>\nFirestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n3.1 \ub370\uc774\ud130 \uc800\uc7a5 \uc608\uc81c<\/h3>\nFirestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nimport com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
Firestore\ub294 \ubb38\uc11c(document)\uc640 \uceec\ub809\uc158(collection)\uc758 \ud615\ud0dc\ub85c \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud569\ub2c8\ub2e4. \ubb38\uc11c\ub294 \ud0a4-\uac12 \uc30d\uc73c\ub85c \uad6c\uc131\ub418\uc5b4 \uc788\uc73c\uba70, \uceec\ub809\uc158\uc740 \ubb38\uc11c\uc758 \uadf8\ub8f9\uc785\ub2c8\ub2e4.<\/p>\n
Firestore\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc744 \uc608\uc81c\ub85c \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc0ac\uc6a9\uc790\uc758 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \uacbd\uc6b0 \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n
import com.google.firebase.firestore.FirebaseFirestore\n \n class MainActivity : AppCompatActivity() {\n private lateinit var db: FirebaseFirestore\n \n override fun onCreate(savedInstanceState: Bundle?) {\n super.onCreate(savedInstanceState)\n setContentView(R.layout.activity_main)\n \n db = FirebaseFirestore.getInstance()\n saveUser()\n }\n \n private fun saveUser() {\n val user = hashMapOf(\n \"first\" to \"Jane\",\n \"last\" to \"Doe\",\n \"born\" to 1990\n )\n \n db.collection(\"users\")\n .add(user)\n .addOnSuccessListener { documentReference ->\n Log.d(TAG, \"DocumentSnapshot added with ID: ${documentReference.id}\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error adding document\", e)\n }\n }\n }\n <\/code><\/pre>\n4. \ub370\uc774\ud130 \uc77d\uae30 \ubc0f \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8<\/h2>\nFirestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n4.1 \ub370\uc774\ud130 \uc77d\uae30 \uc608\uc81c<\/h3>\nFirestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
Firestore\ub294 \ub370\uc774\ud130\uc758 \ubcc0\uacbd\uc0ac\ud56d\uc744 \uc2e4\uc2dc\uac04\uc73c\ub85c \uac10\uc9c0\ud560 \uc218 \uc788\ub294 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uc27d\uac8c \uc218\uc2e0\ud558\uace0 UI\ub97c \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
Firestore\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc77d\uc5b4\uc624\ub294 \uae30\ubcf8\uc801\uc778 \uc608\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n
private fun getUser() {\n db.collection(\"users\")\n .get()\n .addOnSuccessListener { documents ->\n for (document in documents) {\n Log.d(TAG, \"${document.id} => ${document.data}\")\n }\n }\n .addOnFailureListener { exception ->\n Log.w(TAG, \"Error getting documents: \", exception)\n }\n }\n <\/code><\/pre>\n4.2 \uc2e4\uc2dc\uac04 \uc5c5\ub370\uc774\ud2b8 \uc608\uc81c<\/h3>\n\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
\uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\uc758 \ubcc0\ud654\ub97c \uac10\uc9c0\ud558\ub824\uba74 addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
addSnapshotListener<\/code> \uba54\uc11c\ub4dc\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
private fun listenToUsers() {\n db.collection(\"users\")\n .addSnapshotListener { snapshots, e ->\n if (e != null) {\n Log.w(TAG, \"Listen failed.\", e)\n return@addSnapshotListener\n }\n\n if (snapshots != null) {\n for (doc in snapshots.documentChanges) {\n if (doc.type == DocumentChange.Type.ADDED) {\n Log.d(TAG, \"New city: ${doc.document.data}\")\n }\n \/\/ \ub2e4\ub978 \ud0c0\uc785\ub3c4 \ucc98\ub9ac \uac00\ub2a5 (MODIFIED, REMOVED \ub4f1)\n }\n }\n }\n }\n <\/code><\/pre>\n5. \ub370\uc774\ud130 \uc218\uc815 \ubc0f \uc0ad\uc81c<\/h2>\nFirestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n5.1 \ub370\uc774\ud130 \uc218\uc815 \uc608\uc81c<\/h3>\n\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
Firestore\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \uac83\ub3c4 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0 \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n
\ud2b9\uc815 \ubb38\uc11c\ub97c \uc218\uc815\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n
private fun updateUser(userId: String) {\n val userUpdates = hashMapOf(\n \"last\" to \"Smith\", \/\/ Last name \ubcc0\uacbd\n )\n\n db.collection(\"users\").document(userId)\n .update(userUpdates)\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully updated!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error updating document\", e)\n }\n }\n <\/code><\/pre>\n5.2 \ub370\uc774\ud130 \uc0ad\uc81c \uc608\uc81c<\/h3>\n\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\nprivate fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
\ub370\uc774\ud130\ub97c \uc0ad\uc81c\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n
private fun deleteUser(userId: String) {\n db.collection(\"users\").document(userId)\n .delete()\n .addOnSuccessListener {\n Log.d(TAG, \"User successfully deleted!\")\n }\n .addOnFailureListener { e ->\n Log.w(TAG, \"Error deleting document\", e)\n }\n }\n <\/code><\/pre>\n6. \ubcf4\uc548 \uaddc\uce59 \uc124\uc815<\/h2>\nFirestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n6.1 \uae30\ubcf8 \ubcf4\uc548 \uaddc\uce59<\/h3>\nrules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
Firestore\ub97c \uc0ac\uc6a9\ud560 \ub54c \uac00\uc7a5 \uc911\uc694\ud55c \ubd80\ubd84 \uc911 \ud558\ub098\ub294 \ubcf4\uc548\uc785\ub2c8\ub2e4. Firebase \ucf58\uc194\uc5d0\uc11c \ubcf4\uc548 \uaddc\uce59\uc744 \uc124\uc815\ud558\uc5ec \ub370\uc774\ud130\uc758 \uc811\uadfc \uad8c\ud55c\uc744 \uad00\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
rules_version = '2';\n service cloud.firestore {\n match \/databases\/{database}\/documents {\n match \/users\/{userId} {\n allow read, write: if request.auth != null;\n }\n }\n }\n <\/code><\/pre>\n7. \uacb0\ub860<\/h2>\n\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n\ucc38\uace0 \uc790\ub8cc<\/h2>\n\nFirebase Firestore \uacf5\uc2dd \ubb38\uc11c<\/a><\/li>\nKotlin for Android Developers<\/a><\/li>\nVolley \uac00\uc774\ub4dc<\/a><\/li>\n<\/ul>\n
\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 \ucf54\ud2c0\ub9b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uc548\ub4dc\ub85c\uc774\ub4dc \uc571\uc5d0\uc11c Firebase\uc640 Firestore\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uc558\uc2b5\ub2c8\ub2e4. \ud074\ub77c\uc6b0\ub4dc \ud30c\uc774\uc5b4\uc2a4\ud1a0\uc5b4\ub97c \ud65c\uc6a9\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud560 \uc218 \uc788\uc73c\uba70, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud1b5\ud574 \uc571\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0 \uc801\uc6a9\ud574 \ubcf4\uba74\uc11c \ub354 \ub9ce\uc740 \uacbd\ud5d8\uc744 \uc313\uc544\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n