Android Open Source - KDIC-Radio-Android Radio Stream Service

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From Project

Back to project page KDIC-Radio-Android.

License

The source code is released under:

GNU General Public License

Java Source Code

package edu.grinnell.kdic;
//from w  w w. j  a  v a 2  s  . c  o m
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiManager.WifiLock;
import android.os.Binder;
import android.os.IBinder;
import android.os.PowerManager;
import android.util.Log;

import java.io.IOException;

public class RadioStreamService extends Service implements MediaPlayer.OnPreparedListener {

  MediaPlayer kdicStream = null;
  private final IBinder mBinder = new StreamBinder();

  public static final String TAG = "Radio Stream Service";
  private static final String STREAMURL = "http://132.161.21.31:8001/raspi"; //"http://kdic.grinnell.edu:8001/kdic128";
  public static final String ACTION_PLAY = "PLAY_STREAM";

  private WifiLock wifiLock; // keep the wifi from turning off
  protected boolean stream_playing = false;
  protected boolean stream_loaded = false;

  @Override
  public IBinder onBind(Intent arg0) {
    return mBinder;
  }

  public class StreamBinder extends Binder {
    RadioStreamService getService() {
      // Return this instance of LocalService so clients can call public
      // methods
      return RadioStreamService.this;
    }
  }

  public void onCreate() {
    prepareStream();
  }

  @Override
  public void onPrepared(MediaPlayer arg0) {

    Log.i("TAG", "steam prepared");

    kdicStream.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK);

    /*
     * Aquire a wifi lock to protect against unexpected stopage of the
     * stream
     */
    wifiLock = ((WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE))
        .createWifiLock(WifiManager.WIFI_MODE_FULL, "mylock");
    wifiLock.acquire();

    stream_loaded = true;
  }

  /* Initialize the radio stream */
  public void prepareStream() {
    Log.e(TAG, "prepare stream");
    kdicStream = new MediaPlayer();
    kdicStream.setOnPreparedListener(this);
    kdicStream.setAudioStreamType(AudioManager.STREAM_MUSIC);

    try {
      kdicStream.setDataSource(STREAMURL);
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
    } catch (SecurityException e) {
      e.printStackTrace();
    } catch (IllegalStateException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }

    kdicStream.prepareAsync(); // prepare async to not block main thread
  }

  public void pauseStream() {
    kdicStream.pause();
  }

  public void playStream() {
    kdicStream.start();
  }

  public void stopStream() {
    kdicStream.stop();
  }

  public boolean isPlaying() {
    return kdicStream.isPlaying();
  }

  public boolean isLoaded() {
    return stream_loaded;
  }

  public void releaseStream() {
    if (kdicStream != null) {
      kdicStream.stop();
      kdicStream.release();
      kdicStream = null;
    }

    try {
      wifiLock.release();
      Log.i(TAG, "wifiLock released");
    } catch (Exception e) {
      Log.e(TAG, "Problem releasing wifiLock: " + e.toString());
    }
  }

  @Override
  public boolean onUnbind(Intent intent) {
    // All clients have unbound with unbindService()
    releaseStream();
    return false;
  }

}

Java Source Code List

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