Android Open Source - CCLHelloText-android Main Activity

• Back to Example/project  ↑

From Project

Back to project page CCLHelloText-android.

License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2014 Google Inc. All Rights Reserved. 
 *//from   w w  w  .  ja v a  2s  .co  m
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at 
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and 
 * limitations under the License.
 */

package com.example.cclhelloworld;

import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.ColorDrawable;
import android.os.Bundle;
import android.speech.RecognizerIntent;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

import com.google.android.gms.cast.CastDevice;
import com.google.android.gms.common.api.Status;
import com.google.sample.castcompanionlibrary.cast.DataCastManager;
import com.google.sample.castcompanionlibrary.cast.callbacks.DataCastConsumerImpl;

import java.util.ArrayList;


/**
 * Main activity to send messages to the receiver.
 */
public class MainActivity extends ActionBarActivity {

  private static final String TAG = MainActivity.class.getSimpleName();

  private static final int REQUEST_CODE = 1;

   // cast manager
   private static DataCastManager mCastMgr;

   // custom data channel
  private static HelloWorldChannel mHelloWorldChannel;

   private static String APPLICATION_ID;


  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    ActionBar actionBar = getSupportActionBar();
    actionBar.setBackgroundDrawable(new ColorDrawable(
        android.R.color.transparent));

      APPLICATION_ID = getResources().getString(R.string.app_id);

      // create data channel
      mHelloWorldChannel = new HelloWorldChannel();

      // initialize the cast manager
      createCastManager(getApplicationContext());

    // When the user clicks on the button, use Android voice recognition to
    // get text
    Button voiceButton = (Button) findViewById(R.id.voiceButton);
    voiceButton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        startVoiceRecognitionActivity();
      }
    });
  }

   private static DataCastManager createCastManager(Context ctx) {
      if (null == mCastMgr) {
         mCastMgr = DataCastManager.initialize(ctx, APPLICATION_ID, mHelloWorldChannel.getNamespace());
         mCastMgr.incrementUiCounter();
      }
      mCastMgr.setContext(ctx);

      return mCastMgr;
   }

  /**
   * Android voice recognition
   */
  private void startVoiceRecognitionActivity() {
    Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
        RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
        getString(R.string.message_to_cast));
    startActivityForResult(intent, REQUEST_CODE);
  }

  /*
   * Handle the voice recognition response
   * 
   * @see android.support.v4.app.FragmentActivity#onActivityResult(int, int,
   * android.content.Intent)
   */
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
      ArrayList<String> matches = data
          .getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
      if (matches.size() > 0) {
        Log.d(TAG, matches.get(0));
        sendMessage(matches.get(0));
      }
    }
    super.onActivityResult(requestCode, resultCode, data);
  }

  @Override
  protected void onResume() {
    super.onResume();
      mCastMgr.incrementUiCounter();
  }

  @Override
  protected void onPause() {
      mCastMgr.decrementUiCounter();
    super.onPause();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    getMenuInflater().inflate(R.menu.main, menu);

      // Add the MediaRouter via our cast manager
      mCastMgr.addMediaRouterButton(menu, R.id.media_route_menu_item);

    return true;
  }


  /**
   * Send a text message to the receiver
   * 
   * @param message
   */
  private void sendMessage(String message) {
      if (mCastMgr.isConnected()) {
         try {
            mCastMgr.sendDataMessage(message, mHelloWorldChannel.getNamespace());
         } catch (Exception e) {
            Log.e(TAG, "Sending message failed", e);
         }
    } else {
      Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT)
          .show();
    }
  }

  /**
   * Custom message channel
   */
  class HelloWorldChannel extends DataCastConsumerImpl {

    /**
     * @return custom namespace
     */
    public String getNamespace() {
      return getString(R.string.namespace);
    }

    /*
     * Receive message from the receiver app
     */
    @Override
    public void onMessageReceived(CastDevice castDevice, String namespace, String message) {
      Log.d(TAG, "onMessageReceived: " + message);
    }

      @Override
      public void onMessageSendFailed(Status status) {
         Log.d(TAG, "onMessageSendFailed: " + status);
      }

  }

}

Java Source Code List

• Back to Example/project  ↑