database

.gitignore

@@ -1,6 +1,7 @@
 *.iml
 .gradle
 /local.properties
+/gradle.properties
 /.idea/caches
 /.idea/libraries
 /.idea/modules.xml

app/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.application'
+apply plugin: 'com.google.gms.google-services'
 
 android {
     compileSdkVersion 28
@@ -20,9 +21,12 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
+    //noinspection GradleCompatible
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support:design:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'com.google.firebase:firebase-database:16.0.1'
+    implementation 'com.google.firebase:firebase-core: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'

app/src/main/java/com/example/merchandiseapp/MainActivity.java

@@ -5,10 +5,23 @@
 import android.support.design.widget.BottomNavigationView;
 import android.support.v7.app.AppCompatActivity;
 import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
 import android.widget.TextView;
+import android.widget.Toast;
+
+import com.google.firebase.FirebaseApp;
+import com.google.firebase.database.DatabaseReference;
+import com.google.firebase.database.FirebaseDatabase;
 
 public class MainActivity extends AppCompatActivity {
+    //FirebaseDatabase database = FirebaseDatabase.getInstance();
+
+
+
 
+    private Button btn;
+    public static final String Database_PATH = "Merchandise";
     private TextView mTextMessage;
 
     private BottomNavigationView.OnNavigationItemSelectedListener mOnNavigationItemSelectedListener
@@ -36,6 +49,19 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
+       // final DatabaseReference myRef = database.getReference();
+        //String recordId = myRef.push().getKey();
+        //myRef.child(recordId).setValue("Reebok");
+        btn = findViewById(R.id.button);
+        btn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                final DatabaseReference myRef = FirebaseDatabase.getInstance().getReference();
+
+                myRef.setValue("Hello, World!");
+            }
+        });
+
         mTextMessage = (TextView) findViewById(R.id.message);
         BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
         navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);

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

@@ -28,4 +28,12 @@
         app:layout_constraintRight_toRightOf="parent"
         app:menu="@menu/navigation" />
 
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Button"
+        tools:layout_editor_absoluteX="173dp"
+        tools:layout_editor_absoluteY="480dp" />
+
 </android.support.constraint.ConstraintLayout>

build.gradle

@@ -8,7 +8,8 @@ buildscript {
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:3.3.2'
-
+        classpath 'com.google.gms:google-services:4.1.0'
+
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }