后台播放音频，不同Activity，统一控制，已封装，轻松集成
来源：互联网 发布：2017年淘宝好做吗 编辑：程序博客网 时间：2024/06/06 05:21
最近做了后台音频播放的功能，要求不同界面统一控制。其实后台音频播放比较多，但界面都大体相似，播放，暂停，快进，进度条之类，这种情况下，就可以将他封装成一个库，方便后期调用。本demo通过service播放音频，然后通过发送广播来控制，各种状态已经做了封装，不需要开发者重新去编写。MainActivitypublic class MainActivity extends Activity { public static final String URL_VOICE = "http://img.owspace.com/F_usw5969_1452853506.4724571.mp3"; private VoiceViewHolder mVoiceHolder; private MediaServiceController mVoiceControl; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initWidget(); setupListener(); loadData(); } private void initView(){ } private void initWidget(){ } private void setupListener(){ findViewById(R.id.jump_btn).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { jump2ArticlePage(); } }); } private void loadData(){ initVoiceMode(); } private void initVoiceMode(){ View view = findViewById(R.id.voice_rl); mVoiceHolder = new VoiceViewHolder(view); mVoiceHolder.imgIv.setImageResource(R.mipmap.index); mVoiceControl = new MediaServiceController(this, mVoiceHolder, URL_VOICE); setupVoiceControlListener(mVoiceControl); } private void setupVoiceControlListener(MediaServiceController control) { control.setOnMediaControlListener(new MediaServiceController.OnVioceControlProxy() { @Override public void onError(int code, String msg) { CommonTools.showToast(MainActivity.this, msg); } @Override public boolean onClickPlay() { DebugTools.d("media2 video2 onClickPlay"); return true; } }); } private void jump2ArticlePage(){ Intent intent = new Intent(this, NewsActivity.class); if(mVoiceControl != null){ DebugTools.d("voice2 fragment mVoiceControl.getPlayState(): " + mVoiceControl.getPlayState()); intent.putExtra(NewsActivity.KEY_PLAY_STATE, mVoiceControl.getPlayState()); intent.putExtra(Constants.KEY_INTENT_IS_FROM_HOME, true); } startActivityForResult(intent, Constants.CODE_UPDATE_COMMENT_LIKE_COUNT); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if(requestCode == Constants.CODE_UPDATE_COMMENT_LIKE_COUNT){ if(data == null){ return; } PlayState state = (PlayState)data.getSerializableExtra(NewsActivity.KEY_PLAY_STATE); handledVoiceStateWhenActivityBack(state); } } private void handledVoiceStateWhenActivityBack(PlayState state){ if(mVoiceControl != null){ if(mVoiceControl.getPlayState() != state){ mVoiceControl.showPlayState(state); } } } @Override protected void onStart() { registerMediaControlBroadcast(); super.onStart(); } @Override protected void onStop() { unregisterMediaControlBroadcast(); super.onStop(); } @Override protected void onDestroy() { if(mVoiceControl != null){ mVoiceControl.stop(); } super.onDestroy(); } class MediaControlBroadcast extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if(intent == null){// DebugTools.d("voice2 home MediaControlBroadcast onReceive return-----------"); return; } if(mVoiceControl != null){ mVoiceControl.handleMediaBroadcastData(intent); } } } private MediaControlBroadcast mMediaControlBroadcast; private void registerMediaControlBroadcast(){ if(mMediaControlBroadcast == null){ mMediaControlBroadcast = new MediaControlBroadcast(); } IntentFilter filter = new IntentFilter(); filter.addAction(MediaServiceController.BRODCAST_ACTION_MEDIA_CONTROL); registerReceiver(mMediaControlBroadcast, filter); } private void unregisterMediaControlBroadcast(){ if(mMediaControlBroadcast != null){ unregisterReceiver(mMediaControlBroadcast); } }}NewsActivity 第二个界面
public class NewsActivity extends Activity { public static final String KEY_PLAY_STATE = "KEY_PLAY_STATE"; @Bind(R.id.webview) public WebView mWebView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_news); initView(); initWidget(); setupListener(); loadData(); } private void initView(){ ButterKnife.bind(this); } private void initWidget(){ initWebViewStorage(mWebView); } private void setupListener(){ setupWebViewListener(); } private void loadData(){ initParams(); String url = "http://static.owspace.com/wap/291588.html"; loadWebviewUrl(url); initVoiceMode(); } private MediaServiceController.PlayState mPlayState; protected void initParams(){ Intent intent = getIntent(); if(intent != null){ mPlayState = (MediaServiceController.PlayState)intent.getSerializableExtra(KEY_PLAY_STATE); if(mPlayState == null){ mPlayState = PlayState.INIT; } } } protected void loadWebviewUrl(String url){ DebugTools.d("js2 discovery2 jump3 vote2 news2 current url: " + url); if(!TextUtils.isEmpty(url)){ mWebView.loadUrl(url); } } //------------voice------------------ private VoiceViewHolder mVoiceHolder; private MediaServiceController mVoiceControl; private void initVoiceMode(){ View view = findViewById(R.id.voice_rl); mVoiceHolder = new VoiceViewHolder(view); mVoiceHolder.imgIv.setImageResource(R.mipmap.index); mVoiceControl = new MediaServiceController(this, mVoiceHolder, MainActivity.URL_VOICE); setupVoiceControlListener(mVoiceControl); mVoiceControl.showPlayState(mPlayState); } private void setupVoiceControlListener(MediaServiceController control){ control.setOnMediaControlListener(new MediaServiceController.OnVioceControlProxy() { @Override public void onError(int code, String msg) { CommonTools.showToast(NewsActivity.this, msg); } @Override public boolean onClickPlay() { DebugTools.d("media2 video2 onClickPlay"); return true; } }); } //-------------broadcast---------------- @Override protected void onStart() { registerMediaControlBroadcast(); super.onStart(); } @Override protected void onStop() { unregisterMediaControlBroadcast(); super.onStop(); } class MediaControlBroadcast extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if(intent == null){// DebugTools.d("voice2 home MediaControlBroadcast onReceive return-----------"); return; } if(mVoiceControl != null){ mVoiceControl.handleMediaBroadcastData(intent); } } } private MediaControlBroadcast mMediaControlBroadcast; private void registerMediaControlBroadcast(){ if(mMediaControlBroadcast == null){ mMediaControlBroadcast = new MediaControlBroadcast(); } IntentFilter filter = new IntentFilter(); filter.addAction(MediaServiceController.BRODCAST_ACTION_MEDIA_CONTROL); registerReceiver(mMediaControlBroadcast, filter); } private void unregisterMediaControlBroadcast(){ if(mMediaControlBroadcast != null){ unregisterReceiver(mMediaControlBroadcast); } } @Override public boolean onKeyDown(int keyCode, KeyEvent event){ if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_DOWN){ handleClickBack(); return true; } return super.onKeyDown(keyCode, event); } protected void handleClickBack() { Intent data = new Intent(); if(mVoiceControl != null){ data.putExtra(KEY_PLAY_STATE, mVoiceControl.getPlayState()); } setResult(200, data); finish(); } //-------------webview-------------- protected void initWebViewStorage(WebView webview){ webview.getSettings().setDomStorageEnabled(true); webview.getSettings().setAppCacheMaxSize(1024*1024*8); String appCachePath = getApplicationContext().getCacheDir().getAbsolutePath(); webview.getSettings().setAllowFileAccess(true); webview.getSettings().setAppCacheEnabled(true); webview.getSettings().setDatabaseEnabled(true); webview.getSettings().setDatabasePath(appCachePath); } protected void initWebViewSetting(WebView webview){ WebSettings webseting = webview.getSettings();// webseting.setRenderPriority(RenderPriority.HIGH); webseting.setJavaScriptEnabled(true);// webseting.setPluginsEnabled(true); webseting.setSupportZoom(true); webview.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY); webseting.setUseWideViewPort(true); webseting.setLoadWithOverviewMode(true); initWebViewStorage(webview); } protected void setupWebViewListener() { mWebView.setWebViewClient(new WebViewClient() { }); mWebView.setWebChromeClient(new WebChromeClient() { @Override public void onProgressChanged(WebView view, int newProgress){ super.onProgressChanged(view, newProgress); } }); } @Override protected void onDestroy() { ButterKnife.unbind(this); super.onDestroy(); }}MediaPlayService 播放音频的Service
public class MediaPlayService extends Service implements OnBufferingUpdateListener, OnCompletionListener, MediaPlayer.OnPreparedListener { @Override public IBinder onBind(Intent intent) { return null; } @Override public void onCreate() { super.onCreate(); DebugTools.d("voice2 service oncreate"); } @Override public void onStart(Intent intent, int startId) { super.onStart(intent, startId); DebugTools.d("voice2 service onStart intent null: " + (intent == null)); if(intent != null){ int command = intent.getIntExtra(MediaServiceController.KEY_MEDIA_CONTROL_COMMAND, 0); handleMediaControlAction(command, intent); } } private void handleMediaControlAction(int command, Intent intent){ DebugTools.d("comment2 handleMediaControlAction command: " + command); if(command == MediaServiceController.COMMAND_PLAY){ String url = intent.getStringExtra(MediaServiceController.KEY_URL); DebugTools.d("comment2 handleMediaControlAction url: " + url); handleClickPlay(url); }else if(command == MediaServiceController.COMMAND_RESUME){ handleClickResume(); }else if(command == MediaServiceController.COMMAND_PAUSE){ handleClickPause(); }else if(command == MediaServiceController.COMMAND_SEEK_TO){ boolean isDraged = intent.getBooleanExtra(MediaServiceController.KEY_BOOLEAN, false); float rate = intent.getFloatExtra(MediaServiceController.KEY_FLOAT, 0); int progress = (int)(mPlayer.getDuration() * rate); handleSeekTo(progress, isDraged); }else if(command == MediaServiceController.COMMAND_START_SEEK){ removeUpdateTimeMsg(); }else if(command == MediaServiceController.COMMAND_DESTROY){ stopAndDestory(); } } private void handleSeekTo(int progress, boolean isDraged){ mPlayer.seekTo(progress); if(isDraged){ sendUpdateTimeMsg(); } } public MediaPlayer mPlayer; private void createMediaPlayer(){ if(mPlayer != null){ return; } try { mPlayer = new MediaPlayer(); mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mPlayer.setOnBufferingUpdateListener(this); mPlayer.setOnPreparedListener(this); mPlayer.setOnCompletionListener(this); } catch (Exception e) { Log.e("mPlayer", "error", e); } } private void handleClickPlay(String url){ if(TextUtils.isEmpty(url)){ return; } url = url.trim(); createMediaPlayer(); playUrl(url); // sendUpdateTimeMsg(); } private void handleClickPause(){ mPlayer.pause(); removeUpdateTimeMsg(); } private void handleClickResume(){ sendUpdateTimeMsg(); mPlayer.start(); } private void sendMediaStateUpdateBrodcast(int command){ Intent intent = new Intent(MediaServiceController.BRODCAST_ACTION_MEDIA_CONTROL); intent.putExtra(MediaServiceController.KEY_MSG_UPDATE_MEDIA_STATE, command); sendBroadcast(intent); } private void sendUpdateMediaTimeBrodcast(int curTime, int totalTime){ int[] arr = {curTime, totalTime}; Intent intent = new Intent(MediaServiceController.BRODCAST_ACTION_MEDIA_CONTROL); intent.putExtra(MediaServiceController.KEY_MSG_UPDATE_MEDIA_STATE, MediaServiceController.MSG_UPDATE_STATE_TIME); intent.putExtra(MediaServiceController.KEY_INT_ARR, arr); sendBroadcast(intent); } private static final int MSG_UPDATE_TIME = 101; Handler mHandler = new Handler() { public void handleMessage(Message msg) { switch(msg.what){ case MSG_UPDATE_TIME: if (mPlayer != null && mPlayer.isPlaying()) { int position = mPlayer.getCurrentPosition(); int duration = mPlayer.getDuration(); sendUpdateMediaTimeBrodcast(position, duration); if(position < duration){ sendUpdateTimeMsg(); } } break; } }; }; private void sendUpdateTimeMsg(){ if(mHandler != null){ mHandler.sendEmptyMessageDelayed(MSG_UPDATE_TIME, 1000); } } private void removeUpdateTimeMsg(){ if(mHandler != null){ mHandler.removeMessages(MSG_UPDATE_TIME); } } // ***************************************************** public void playUrl(String videoUrl) { try { String path = getLocalOrOnlineUrl(videoUrl); mPlayer.reset(); mPlayer.setDataSource(path); mPlayer.prepare();// prepare之后自动播放 // mPlayer.start(); } catch (IllegalArgumentException e) { e.printStackTrace(); } catch (IllegalStateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (NullPointerException e) { e.printStackTrace(); } } private String getLocalOrOnlineUrl(String url){ String path = CommonTools.getMediaSavePathByUrl(url); File file = new File(path); boolean isExist = file != null && file.exists(); DebugTools.d("file3 voice2 service playUrl url: " + url + " path: " + path + " isExist: " + isExist); if(isExist){ return path; } return url; } private void stopAndDestory() { DebugTools.d("voice2 service stopAndDestory"); if (mPlayer != null) { mPlayer.stop(); mPlayer.release(); mPlayer = null; } removeUpdateTimeMsg(); mHandler = null; stopSelf(); } /** * 通过onPrepared播放 */ @Override public void onPrepared(MediaPlayer arg0) { arg0.start(); DebugTools.d("voice2 voice onPrepared"); sendUpdateTimeMsg();// showPlayingState(mHolder); sendMediaStateUpdateBrodcast(MediaServiceController.MSG_UPDATE_STATE_PLAYING);// mHolder.totalTimeTv.setText(getShowTimeByMs(arg0.getDuration()));// sendUpdateMediaTimeBrodcast(0, arg0.getDuration()); } @Override public void onCompletion(MediaPlayer arg0) { DebugTools.d("media2 voice onCompletion");// showInitStateState(mHolder); sendMediaStateUpdateBrodcast(MediaServiceController.MSG_UPDATE_STATE_INIT); if(mHandler != null){ mHandler.removeMessages(MSG_UPDATE_TIME); } } @Override public void onBufferingUpdate(MediaPlayer arg0, int bufferingProgress) { }}MediaServiceController 控制器
public class MediaServiceController { public static final String KEY_FLOAT = "KEY_FLOAT"; public static final String KEY_BOOLEAN = "KEY_BOOLEAN"; public static final String KEY_INT_ARR = "KEY_INT_ARR"; public static final String KEY_URL = "KEY_URL"; public static final String BRODCAST_ACTION_MEDIA_CONTROL = "BRODCAST_ACTION_MEDIA_CONTROL"; public static final String KEY_MSG_UPDATE_MEDIA_STATE = "KEY_MSG_UPDATE_MEDIA_STATE"; public static final int MSG_UPDATE_STATE_INIT = 100; public static final int MSG_UPDATE_STATE_PREPARE = 101; public static final int MSG_UPDATE_STATE_PAUSE = 102; public static final int MSG_UPDATE_STATE_PLAYING = 103; public static final int MSG_UPDATE_STATE_TIME = 104; public static final String KEY_MEDIA_CONTROL_COMMAND = "KEY_MEDIA_CONTROL_COMMAND"; public static final int COMMAND_PLAY = 105; public static final int COMMAND_PAUSE = 106; public static final int COMMAND_RESUME = 107; public static final int COMMAND_DESTROY = 108; public static final int COMMAND_SEEK_TO = 109; public static final int COMMAND_START_SEEK = 110; private SeekBar sBar; private VoiceViewHolder mHolder; private String mUrl; private Context mContext; public MediaServiceController(Context context, VoiceViewHolder holder, String url) { mContext = context; this.sBar = holder.seekBar; mHolder = holder; mUrl = url; setupListener(); showInitStateState(holder); } private void setupListener(){ setupSeekBarListener(sBar); setControlBarListener(mHolder); } private void setupSeekBarListener(final SeekBar seekBar){ seekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() { float rate; @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { if(seekBar != null && seekBar.isPressed()){ rate = progress * 1.0f / seekBar.getMax();// handleUpdateTime((int)(rate * mTotalTime), mTotalTime); } } @Override public void onStartTrackingTouch(SeekBar seekBar) { DebugTools.d("voice2 seekbar onStartTrackingTouch"); sendMediaControlCommand(COMMAND_START_SEEK); } @Override public void onStopTrackingTouch(SeekBar seekBar) { DebugTools.d("voice2 seekbar onStopTrackingTouch"); // seekTo()的参数是相对与影片时间的数字，而不是与seekBar.getMax()相对的数字 handleUpdateTime((int)(rate * mTotalTime), mTotalTime); sendSeekToCommand(rate, true); } }); } private void sendSeekToCommand(float rate, boolean isDrag){ Intent intent = new Intent(mContext, MediaPlayService.class); intent.putExtra(KEY_MEDIA_CONTROL_COMMAND, COMMAND_SEEK_TO); intent.putExtra(KEY_FLOAT, rate); intent.putExtra(KEY_BOOLEAN, isDrag); mContext.startService(intent); } private void sendMediaControlCommand(int command, String url){ Intent intent = new Intent(mContext, MediaPlayService.class); intent.putExtra(KEY_MEDIA_CONTROL_COMMAND, command); intent.putExtra(KEY_URL, url); mContext.startService(intent); DebugTools.d("voice2 sendMediaControlCommand command: " + command + " url: " + url); } private void sendMediaControlCommand(int command){ DebugTools.d("voice2 sendMediaControlCommand command: " + command); Intent intent = new Intent(mContext, MediaPlayService.class); intent.putExtra(KEY_MEDIA_CONTROL_COMMAND, command); mContext.startService(intent); } private PlayState mPlayState = PlayState.INIT; private void setControlBarListener(final VoiceViewHolder holder){ holder.playSymbolIv.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { handleClickPlay(holder); } }); holder.playPauseIb.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { handleClickPlay(holder); } }); holder.imgIv.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { if(mPlayState == PlayState.INIT){ handleClickPlay(holder); } } }); holder.speedIb.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { handleSpeedDecelerate(DELTA); } }); holder.decelerateIb.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { handleSpeedDecelerate(-DELTA); } }); } private int mCurrentTime = 0; private int mTotalTime = 0; private static final int DELTA = 10 * 1000; private void handleSpeedDecelerate(int delta){// int position = mPlayer.getCurrentPosition();// int duration = mPlayer.getDuration(); int position = mCurrentTime; int duration = mTotalTime; DebugTools.d("voice2 duration: " + duration + " position: " + position + " delta: " + delta); if(duration <= 0){ return; } position += delta; if(position < 0){ position = 0; } if(position > duration){ position = duration; } DebugTools.d("voice2 duration: " + duration + " position: " + position + " delta: " + delta + "--------------"); float rate = position * 1.0f / duration; handleUpdateTime(position, duration); sendSeekToCommand(rate, false); } public void handleMediaBroadcastData(Intent intent){ if(intent == null){ return; } int action = intent.getIntExtra(KEY_MSG_UPDATE_MEDIA_STATE, 0); handleUpdateState(action, intent); } public void mockClickStartPlay(){ mUrl = mUrl.trim(); showPreparePlayState(mHolder); sendMediaControlCommand(COMMAND_PLAY, mUrl); } private void handleClickPlay(final VoiceViewHolder holder){ DebugTools.d("voice2 handleClickPlay mPlayState: " + mPlayState); if(mPlayState == PlayState.INIT){ DebugTools.d("voice2 handleClickPlay mUrl: " + mUrl); if(TextUtils.isEmpty(mUrl)){ if(mOnVideoControlListener != null){ mOnVideoControlListener.onError(0, "地址为空"); } return; } if(mOnVideoControlListener != null && mOnVideoControlListener.onClickPlay()){ mockClickStartPlay(); } DebugTools.d("media2 handleClickPlay mUrl: " + mUrl); }else if(mPlayState == PlayState.PLAYING){ sendMediaControlCommand(COMMAND_PAUSE); showPauseState(holder); }else if(mPlayState == PlayState.PAUSE){ sendMediaControlCommand(COMMAND_RESUME); showPlayingState(holder); } } public void showPlayState(PlayState state){ if(state == null){ state = PlayState.INIT; } if(mPlayState == state){ return; } mPlayState = state; if(mPlayState == PlayState.INIT){ showInitStateState(mHolder); }else if(mPlayState == PlayState.PLAYING){ showPlayingState(mHolder); }else if(mPlayState == PlayState.PAUSE){ showPauseState(mHolder); } } private void showPlayingState(VoiceViewHolder holder){ mPlayState = PlayState.PLAYING; holder.playPauseIb.setImageResource(R.mipmap.library_voice_mediacontroller_pause); updateViewVisibleState(holder.mediaControl, View.VISIBLE); updateViewVisibleState(holder.playSymbolIv, View.INVISIBLE); updateViewVisibleState(holder.pb, View.INVISIBLE); if(mOnVideoControlListener != null){ mOnVideoControlListener.onClickResume(); } } private void showPauseState(VoiceViewHolder holder){ mPlayState = PlayState.PAUSE; holder.playPauseIb.setImageResource(R.mipmap.library_voice_mediacontroller_play); updateViewVisibleState(holder.mediaControl, View.VISIBLE); updateViewVisibleState(holder.playSymbolIv, View.INVISIBLE); updateViewVisibleState(holder.pb, View.INVISIBLE); if(mOnVideoControlListener != null){ mOnVideoControlListener.onPrepared(); } } private void showInitStateState(VoiceViewHolder holder){ mPlayState = PlayState.INIT; holder.imgIv.setVisibility(View.VISIBLE); holder.seekBar.setProgress(0); holder.playPauseIb.setImageResource(R.mipmap.library_video_mediacontroller_play); holder.curTimeTv.setText("00:00"); updateViewVisibleState(holder.mediaControl, View.INVISIBLE); updateViewVisibleState(holder.playSymbolIv, View.VISIBLE); updateViewVisibleState(holder.pb, View.INVISIBLE); } private void showPreparePlayState(VoiceViewHolder holder){ mPlayState = PlayState.PREPARE; updateViewVisibleState(holder.pb, View.VISIBLE); updateViewVisibleState(holder.playSymbolIv, View.INVISIBLE); } private void updateViewVisibleState(View view, int visibleState){ if(view.getVisibility() != visibleState){ view.setVisibility(visibleState); } } public void pause() { if(mHolder == null){ return; } if(mPlayState == PlayState.PLAYING){ sendMediaControlCommand(COMMAND_PAUSE); showPauseState(mHolder); } } public PlayState getPlayState(){ return mPlayState; } public void stop() { if(mHolder != null){ showInitStateState(mHolder); } sendMediaControlCommand(COMMAND_DESTROY); } private void handleUpdateState(int state, Intent intent){ DebugTools.d("voice2 handleUpdateState state: " + state); if(state == MSG_UPDATE_STATE_INIT){ showInitStateState(mHolder); }else if(state == MSG_UPDATE_STATE_PREPARE){ showPreparePlayState(mHolder); }else if(state == MSG_UPDATE_STATE_PLAYING){ showPlayingState(mHolder); }else if(state == MSG_UPDATE_STATE_PAUSE){ showPauseState(mHolder); }else if(state == MSG_UPDATE_STATE_TIME){ int[] timeArr = intent.getIntArrayExtra(KEY_INT_ARR); if(timeArr != null && timeArr.length == 2){ handleUpdateTime(timeArr[0], timeArr[1]); } } } private void handleUpdateTime(int position, int duration){ mCurrentTime = position; mTotalTime = duration; if (duration > 0) { long pos = sBar.getMax() * position / duration; sBar.setProgress((int) pos); } mHolder.curTimeTv.setText(getShowTimeByMs(position)); mHolder.totalTimeTv.setText("-" + getShowTimeByMs(duration - position)); } public enum PlayState{ INIT, PREPARE, PLAYING, PAUSE } public static class VoiceViewHolder{ public RelativeLayout mediaControl; public ImageView playPauseIb; public SeekBar seekBar; public ImageView imgIv; public ImageView playSymbolIv; public TextView curTimeTv; public TextView totalTimeTv; public ProgressBar pb; public ImageButton speedIb; public ImageButton decelerateIb; public VoiceViewHolder(View convertView){ mediaControl = (RelativeLayout) convertView.findViewById(R.id.voice_control_rl); playPauseIb = (ImageView) convertView.findViewById(R.id.mediacontroller_play_pause); seekBar = (SeekBar) convertView.findViewById(R.id.mediacontroller_seekbar); imgIv = (ImageView) convertView.findViewById(R.id.voice_image_iv); playSymbolIv = (ImageView) convertView.findViewById(R.id.voice_play_symbol_iv); curTimeTv = (TextView)convertView.findViewById(R.id.mediacontroller_time_current); totalTimeTv = (TextView)convertView.findViewById(R.id.mediacontroller_time_total); pb = (ProgressBar) convertView.findViewById(R.id.loading_pb); speedIb = (ImageButton) convertView.findViewById(R.id.mediacontroller_speed); decelerateIb = (ImageButton) convertView.findViewById(R.id.mediacontroller_decelerate); } } private OnVioceControlListener mOnVideoControlListener; public void setOnMediaControlListener(OnVioceControlListener listener){ mOnVideoControlListener = listener; } public interface OnVioceControlListener{ /** * @return true,直接播放；false，不播放客户端处理（播放时，使用的是流量的情况，这是可以弹个提示框之类的） */ public boolean onClickPlay(); public void onPrepared(); public void onClickResume(); public void onClickPause(); public void onCompletion(); public void onError(int code, String msg); } public static class OnVioceControlProxy implements OnVioceControlListener{ @Override public boolean onClickPlay() { return true; } @Override public void onPrepared() { } @Override public void onClickResume() { } @Override public void onClickPause() { } @Override public void onCompletion() { } @Override public void onError(int code, String msg) { } } private String getShowTimeByMs(int time){ time = time / 1000; int minute = time / 60; int second = time % 60; StringBuffer buffer = new StringBuffer(); if(minute < 10){ buffer.append("0" + minute); }else{ buffer.append(minute); } buffer.append(":"); if(second < 10){ buffer.append("0" + second); }else{ buffer.append(second); } return buffer.toString(); }}源码地址：http://download.csdn.net/detail/paddyy/9414571
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