디비연결

app/build.gradle

@@ -22,7 +22,11 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:27.1.1'
     implementation 'com.android.support.constraint:constraint-layout:1.1.0'
+    implementation 'com.google.firebase:firebase-core:16.0.0'
+    implementation 'com.google.firebase:firebase-database:16.0.1'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
 }
+
+apply plugin: 'com.google.gms.google-services'

app/google-services.json

@@ -0,0 +1,59 @@
+{
+  "project_info": {
+    "project_number": "223306660274",
+    "firebase_url": "https://aptmanager-c479c.firebaseio.com",
+    "project_id": "aptmanager-c479c",
+    "storage_bucket": "aptmanager-c479c.appspot.com"
+  },
+  "client": [
+    {
+      "client_info": {
+        "mobilesdk_app_id": "1:223306660274:android:2ad07d48e20049f8",
+        "android_client_info": {
+          "package_name": "com.example.tarah.apartmentmanager"
+        }
+      },
+      "oauth_client": [
+        {
+          "client_id": "223306660274-jg61nqh8i694emg4bupvf6inq1ag6e32.apps.googleusercontent.com",
+          "client_type": 1,
+          "android_info": {
+            "package_name": "com.example.tarah.apartmentmanager",
+            "certificate_hash": "80164e3e131b709a298ebe858a2787f683dc875f"
+          }
+        },
+        {
+          "client_id": "223306660274-ig1s9ne66dq21971sdh2hhgu339dhk7b.apps.googleusercontent.com",
+          "client_type": 3
+        },
+        {
+          "client_id": "223306660274-ig1s9ne66dq21971sdh2hhgu339dhk7b.apps.googleusercontent.com",
+          "client_type": 3
+        }
+      ],
+      "api_key": [
+        {
+          "current_key": "AIzaSyDKiyY8I8ZksX24HfOYavBG-PZGZFO4U9s"
+        }
+      ],
+      "services": {
+        "analytics_service": {
+          "status": 1
+        },
+        "appinvite_service": {
+          "status": 2,
+          "other_platform_oauth_client": [
+            {
+              "client_id": "223306660274-ig1s9ne66dq21971sdh2hhgu339dhk7b.apps.googleusercontent.com",
+              "client_type": 3
+            }
+          ]
+        },
+        "ads_service": {
+          "status": 2
+        }
+      }
+    }
+  ],
+  "configuration_version": "1"
+}

app/src/main/java/com/example/tarah/apartmentmanager/MainActivity.java

@@ -7,6 +7,9 @@
 import android.widget.Button;
 import android.widget.EditText;
 
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
+
 public class MainActivity extends AppCompatActivity {
 
     EditText loginC;
@@ -18,6 +21,13 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        DatabaseReference hyojin= FirebaseDatabase.getInstance().getReference("mainLogin/user");
+        user first=new user("apt","효진",318);
+       hyojin.child(first.getId()).setValue( first);
+//        hyojin.child(first.getId()).child("name").setValue("윤채");
+        // hyojin.child(first.getId()).removeValue();
+
         init();
         addListener();
     }

app/src/main/java/com/example/tarah/apartmentmanager/user.java

@@ -0,0 +1,36 @@
+package com.example.tarah.apartmentmanager;
+
+public class user {
+    String id;
+    String name;
+    int code;
+    public user(String id,String name,int code){
+        this.id=id;
+        this.name=name;
+        this.code=code;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getCode() {
+        return code;
+    }
+
+    public void setCode(int code) {
+        this.code = code;
+    }
+}

app/src/main/res/layout/activity_main3.xml

@@ -59,7 +59,7 @@
         android:layout_marginBottom="10dp">
         <LinearLayout
             android:orientation="vertical"
-            android:background="#33ffee"
+            android:background="#bb0f0f8d"
             android:layout_marginTop="10dp"
             android:paddingLeft="10dp"
             android:paddingRight="10dp"

build.gradle

@@ -8,6 +8,7 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.1.2'
+        classpath 'com.google.gms:google-services:4.0.0'
 
 
         // NOTE: Do not place your application dependencies here; they belong