Android Open Source - AndroidRecording Audio Playback Manager

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From Project

Back to project page AndroidRecording.

License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2013 Steelkiwi Development, Julia Zudikova
 * /*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.skd.androidrecording.audio;

import android.content.Context;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.MediaController;
import android.widget.MediaController.MediaPlayerControl;

import com.skd.androidrecording.video.MediaPlayerManager;
import com.skd.androidrecording.video.PlaybackHandler;
import com.skd.androidrecording.visualizer.VisualizerView;

/*
 * Controls audio playback 
 */

public class AudioPlaybackManager implements OnGlobalLayoutListener, OnPreparedListener, MediaPlayerControl, OnCompletionListener {
  private VisualizerView visualizerView;
  private MediaPlayerManager playerManager;
  private MediaController controller;
  private PlaybackHandler playbackHandler;
  private boolean isPlayerPrepared, isSurfaceCreated;
  
  public AudioPlaybackManager(Context ctx, VisualizerView visualizerView, PlaybackHandler playbackHandler) {
    this.playerManager = new MediaPlayerManager();
    this.playerManager.getPlayer().setOnPreparedListener(this);
    this.playerManager.getPlayer().setOnCompletionListener(this);
      
    this.visualizerView = visualizerView;
    this.visualizerView.link(this.playerManager.getPlayer());
    this.visualizerView.getViewTreeObserver().addOnGlobalLayoutListener(this);
    
    this.controller = new MediaController(ctx);
        this.controller.setMediaPlayer(this);
        this.controller.setAnchorView(visualizerView);
        
        this.playbackHandler = playbackHandler;
  }
    
  public void setupPlayback(String fileName) {
    playerManager.setupPlayback(fileName);
  }
  
  public void showMediaController() {
    if (!controller.isEnabled()) {
      controller.setEnabled(true);
    }
        controller.show();
  }
  
  public void hideMediaController() {
        controller.hide();
        controller.setEnabled(false);
  }
  
  private void releaseVisualizer() {
    visualizerView.release();
    visualizerView = null;
  }
  
  public void dispose() {
    playerManager.releasePlayer();
    releaseVisualizer();
    controller = null;
    playbackHandler = null;
  }
  
  //visualizer setup callback *****************************************************************
  
  @Override
  public void onGlobalLayout() {
    isSurfaceCreated = true;
      if (isPlayerPrepared && isSurfaceCreated) {
      playbackHandler.onPreparePlayback();
    }
  }
  
  //media player and controller callbacks *****************************************************
    
  @Override
  public void onPrepared(MediaPlayer mp) {
    isPlayerPrepared = true;
    if (isPlayerPrepared && isSurfaceCreated) {
      playbackHandler.onPreparePlayback();
    }
  }

  @Override
  public void start() {
    playerManager.startPlaying();
  }
  
  @Override
  public void pause() {
    playerManager.pausePlaying();
  }
  
  @Override
  public void seekTo(int arg0) {
    playerManager.seekTo(arg0);
  }
  
  @Override
  public void onCompletion(MediaPlayer mp) {
    playerManager.seekTo(0);
  }

  @Override
  public boolean isPlaying() {
    return playerManager.isPlaying();
  }
  
  @Override
  public int getCurrentPosition() {
    return playerManager.getCurrentPosition();
  }

  @Override
  public int getDuration() {
    return playerManager.getDuration();
  }
  
  @Override
  public boolean canPause() {
    return true;
  }

  @Override
  public boolean canSeekBackward() {
    return true;
  }

  @Override
  public boolean canSeekForward() {
    return true;
  }

  @Override
  public int getAudioSessionId() {
    return 0;
  }

  @Override
  public int getBufferPercentage() {
    return 0;
  }
}

Java Source Code List

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