Added Wear Messaging API demo

Author: Paul Ruiz

WearMessageApi/mobile/src/main/java/com/ptrprograms/wearmessageapi/MainActivity.java

@@ -3,28 +3,24 @@
 import android.app.Activity;
 import android.os.Bundle;
 import android.text.TextUtils;
-import android.util.Log;
-import android.view.Menu;
-import android.view.MenuItem;
 import android.view.View;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.ListView;
 
 import com.google.android.gms.common.api.GoogleApiClient;
-import com.google.android.gms.common.api.PendingResult;
 import com.google.android.gms.wearable.MessageApi;
 import com.google.android.gms.wearable.Node;
 import com.google.android.gms.wearable.NodeApi;
 import com.google.android.gms.wearable.Wearable;
 
-import java.util.List;
-import java.util.concurrent.TimeUnit;
-
 
 public class MainActivity extends Activity {
 
+    private static final String START_ACTIVITY = "/start_activity";
+    private static final String WEAR_MESSAGE_PATH = "/message";
+
     private GoogleApiClient mApiClient;
 
     private ArrayAdapter<String> mAdapter;
@@ -40,6 +36,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         init();
         initGoogleApiClient();
+        sendMessage(START_ACTIVITY, "");
     }
 
     private void initGoogleApiClient() {
@@ -68,30 +65,24 @@ private void init() {
             @Override
             public void onClick(View view) {
                 String text = mEditText.getText().toString();
-                if( !TextUtils.isEmpty( text ) ) {
-                    mAdapter.add( text );
+                if (!TextUtils.isEmpty(text)) {
+                    mAdapter.add(text);
                     mAdapter.notifyDataSetChanged();
 
-                    sendMessage( text );
+                    sendMessage(WEAR_MESSAGE_PATH, text);
                 }
             }
         });
     }
 
-    private void sendMessage( final String text ) {
+    private void sendMessage( final String path, final String text ) {
         new Thread( new Runnable() {
             @Override
             public void run() {
                 NodeApi.GetConnectedNodesResult nodes = Wearable.NodeApi.getConnectedNodes( mApiClient ).await();
                 for(Node node : nodes.getNodes()) {
-                    Log.e("MainActivity", "node id: " + node.getId() );
                     MessageApi.SendMessageResult result = Wearable.MessageApi.sendMessage(
-                            mApiClient, node.getId(), "/message", text.getBytes() ).await();
-                    if( result.getStatus().isSuccess() ) {
-                        Log.e( "MainActivity", "Message sent successfully" );
-                    }
-
-
+                            mApiClient, node.getId(), path, text.getBytes() ).await();
                 }
 
                 runOnUiThread( new Runnable() {

WearMessageApi/wear/src/main/AndroidManifest.xml

@@ -21,6 +21,13 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        <service android:name=".WearMessageListenerService">
+            <intent-filter>
+                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+            </intent-filter>
+        </service>
+
     </application>
 
 </manifest>

WearMessageApi/wear/src/main/java/com/ptrprograms/wearmessageapi/MainActivity.java

@@ -2,11 +2,8 @@
 
 import android.app.Activity;
 import android.os.Bundle;
-import android.support.wearable.view.WatchViewStub;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
-import android.widget.TextView;
-import android.widget.Toast;
 
 import com.google.android.gms.common.api.GoogleApiClient;
 import com.google.android.gms.wearable.MessageApi;
@@ -15,6 +12,7 @@
 
 public class MainActivity extends Activity implements MessageApi.MessageListener, GoogleApiClient.ConnectionCallbacks {
 
+    private static final String WEAR_MESSAGE_PATH = "/message";
     private GoogleApiClient mApiClient;
     private ArrayAdapter<String> mAdapter;
 
@@ -34,8 +32,8 @@ protected void onCreate(Bundle savedInstanceState) {
 
     private void initGoogleApiClient() {
         mApiClient = new GoogleApiClient.Builder( this )
-                .addApi(Wearable.API)
-                .addConnectionCallbacks(this)
+                .addApi( Wearable.API )
+                .addConnectionCallbacks( this )
                 .build();
 
         if( mApiClient != null && !( mApiClient.isConnected() || mApiClient.isConnecting() ) )
@@ -55,21 +53,20 @@ protected void onStart() {
     }
 
     @Override
-    public void onMessageReceived( final MessageEvent messageEvent) {
+    public void onMessageReceived( final MessageEvent messageEvent ) {
         runOnUiThread( new Runnable() {
             @Override
             public void run() {
-                mAdapter.add( new String( messageEvent.getData() ) );
-                mAdapter.notifyDataSetChanged();
-                Toast.makeText( getApplicationContext(), new String( messageEvent.getData() ), Toast.LENGTH_SHORT ).show();
+                if( messageEvent.getPath().equalsIgnoreCase( WEAR_MESSAGE_PATH ) ) {
+                    mAdapter.add(new String(messageEvent.getData()));
+                    mAdapter.notifyDataSetChanged();
+                }
             }
         });
     }
 
     @Override
     public void onConnected(Bundle bundle) {
-        Toast.makeText( this, "Wear onConnected", Toast.LENGTH_SHORT ).show();
-
         Wearable.MessageApi.addListener( mApiClient, this );
     }
 

WearMessageApi/wear/src/main/java/com/ptrprograms/wearmessageapi/WearMessageListenerService.java

@@ -0,0 +1,28 @@
+package com.ptrprograms.wearmessageapi;
+
+import android.content.Intent;
+import android.widget.Toast;
+
+import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.wearable.MessageEvent;
+import com.google.android.gms.wearable.Wearable;
+import com.google.android.gms.wearable.WearableListenerService;
+
+/**
+ * Created by paulruiz on 9/26/14.
+ */
+public class WearMessageListenerService extends WearableListenerService {
+    private static final String START_ACTIVITY = "/start_activity";
+
+    @Override
+    public void onMessageReceived(MessageEvent messageEvent) {
+        if( messageEvent.getPath().equalsIgnoreCase( START_ACTIVITY ) ) {
+            Intent intent = new Intent( this, MainActivity.class );
+            intent.addFlags( Intent.FLAG_ACTIVITY_NEW_TASK );
+            startActivity( intent );
+        } else {
+            super.onMessageReceived(messageEvent);
+        }
+    }
+
+}

WearMessageApi/wear/src/main/res/layout/list_item.xml

@@ -6,6 +6,7 @@
     android:layout_height="wrap_content"
     android:textAppearance="?android:attr/textAppearanceListItemSmall"
     android:gravity="center"
+    android:textColor="@android:color/black"
     android:paddingStart="?android:attr/listPreferredItemPaddingStart"
     android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
     android:minHeight="?android:attr/listPreferredItemHeightSmall"