Java 类android.media.AudioManager 实例源码
项目：MyFire
文件：BeepManager.java
private static boolean shouldBeep(SharedPreferences prefs, Context activity) {
boolean shouldPlayBeep = true;
if (shouldPlayBeep) {
// See if sound settings overrides this
AudioManager audioService = (AudioManager) activity.getSystemService(Context.AUDIO_SERVICE);
if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
shouldPlayBeep = false;
}
}
return shouldPlayBeep;
}
项目：AndroidTvDemo
文件：ExtractorRendererBuilder.java
@Override
public void buildRenderers(DemoPlayer player) {
Allocator allocator = new DefaultAllocator(BUFFER_SEGMENT_SIZE);
Handler mainHandler = player.getMainHandler();
// Build the video and audio renderers.
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(mainHandler, null);
DataSource dataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ExtractorSampleSource sampleSource = new ExtractorSampleSource(uri, dataSource, allocator,
BUFFER_SEGMENT_COUNT * BUFFER_SEGMENT_SIZE, mainHandler, player, 0);
MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
sampleSource, MediaCodecSelector.DEFAULT, MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
mainHandler, player, 50);
MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
MediaCodecSelector.DEFAULT, null, true, mainHandler, player,
AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
TrackRenderer textRenderer = new TextTrackRenderer(sampleSource, player,
mainHandler.getLooper());
// Invoke the callback.
TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
player.onRenderers(renderers, bandwidthMeter);
}
项目：miwokapp
文件：PhrasesActivity.java
@Override
public void onAudioFocusChange(int focusChange) {
if (focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT ||
focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) {
// The AUDIOFOCUS_LOSS_TRANSIENT case means that we've lost audio focus for a
// short amount of time. The AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK case means that
// our app is allowed to continue playing sound but at a lower volume. We'll treat
// both cases the same way because our app is playing short sound files.
// Pause playback and reset player to the start of the file. That way, we can
// play the word from the beginning when we resume playback.
mMediaPlayer.pause();
mMediaPlayer.seekTo(0);
} else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
// The AUDIOFOCUS_GAIN case means we have regained focus and can resume playback.
mMediaPlayer.start();
} else if (focusChange == AudioManager.AUDIOFOCUS_LOSS) {
// The AUDIOFOCUS_LOSS case means we've lost audio focus and
// Stop playback and clean up resources
releaseMediaPlayer();
}
}
项目：GestureVideoView
文件：GestureVideoView.java
public void release(boolean cleartargetstate) {
if (mPlayer != null) {
mPlayer.reset();
mPlayer.release();
mPlayer = null;
// REMOVED: mPendingSubtitleTracks.clear();
mCurrentState = STATE_IDLE;
if (cleartargetstate) {
mTargetState = STATE_IDLE;
}
AudioManager am = (AudioManager) mAppContext.getSystemService(Context.AUDIO_SERVICE);
am.abandonAudioFocus(null);
// TODO: 2017/1/11
if (mHandler != null) {
mHandler.removeCallbacksAndMessages(this);
mHandler = null;
}
}
}
项目：AssistantBySDK
文件：AssistantService.java
@Override
public void execute(AudioManager audioManager) {
if (voiceMediator.isBlueToothHeadSet()) {
if (!voiceMediator.isSuportA2DP()) {
if (audioManager.getMode() != AudioManager.MODE_NORMAL) {
Log.e(TAG, "playInChannel>>setMode(AudioManager.MODE_NORMAL)");
audioManager.setMode(AudioManager.MODE_NORMAL);
}
if (audioManager.isBluetoothScoOn()) {
audioManager.setBluetoothScoOn(false);
audioManager.stopBluetoothSco();
}
} else {
if (!audioManager.isBluetoothA2dpOn()) {
Log.e(TAG, "playInChannel>>setBluetoothA2dpOn(true)");
audioManager.setBluetoothA2dpOn(true);
}
}
}
}
项目：R-a-dio-Amazing-Android-App
文件：RadioService.java
public void onAudioFocusChange(int focusChange) {
switch (focusChange) {
case (AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) :
if(sep != null)
sep.setVolume(0.2f);
break;
case (AudioManager.AUDIOFOCUS_LOSS_TRANSIENT) :
mutePlayer();
break;
case (AudioManager.AUDIOFOCUS_LOSS) :
stopPlaying();
break;
case (AudioManager.AUDIOFOCUS_GAIN) :
unmutePlayer();
break;
default: break;
}
}
项目：Edu
文件：JCVideoPlayer.java
public void onCompletion() {
Log.i(TAG, "onCompletion " + " [" + this.hashCode() + "] ");
//save position
if (currentState == CURRENT_STATE_PLAYING || currentState == CURRENT_STATE_PAUSE) {
int position = getCurrentPositionWhenPlaying();
// int duration = getDuration();
JCUtils.saveProgress(getContext(), url, position);
}
cancelProgressTimer();
setUiWitStateAndScreen(CURRENT_STATE_NORMAL);
// 清理缓存变量
textureViewContainer.removeView(JCMediaManager.textureView);
JCMediaManager.instance().currentVideoWidth = 0;
JCMediaManager.instance().currentVideoHeight = 0;
AudioManager mAudioManager = (AudioManager) getContext().getSystemService(Context.AUDIO_SERVICE);
mAudioManager.abandonAudioFocus(onAudioFocusChangeListener);
JCUtils.scanForActivity(getContext()).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
clearFullscreenLayout();
JCUtils.getAppCompActivity(getContext()).setRequestedOrientation(NORMAL_ORIENTATION);
JCMediaManager.textureView = null;
JCMediaManager.savedSurfaceTexture = null;
}
项目：LuaViewPlayground
文件：BeepManager.java
private MediaPlayer buildMediaPlayer(Context activity) {
MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setOnCompletionListener(this);
mediaPlayer.setOnErrorListener(this);
try {
AssetFileDescriptor file = activity.getResources().openRawResourceFd(R.raw.beep);
try {
mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
} finally {
file.close();
}
mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
mediaPlayer.prepare();
return mediaPlayer;
} catch (IOException ioe) {
Log.w(TAG, ioe);
mediaPlayer.release();
return null;
}
}
项目：vlc-example-streamplayer
文件：MediaPlayer.java
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private BroadcastReceiver createAudioPlugReceiver() {
return new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (action == null)
return;
if (action.equalsIgnoreCase(AudioManager.ACTION_HDMI_AUDIO_PLUG)) {
final boolean hasHdmi = intent.getIntExtra(AudioManager.EXTRA_AUDIO_PLUG_STATE, 0) == 1;
final long encodingFlags = !hasHdmi ? 0 :
getEncodingFlags(intent.getIntArrayExtra(AudioManager.EXTRA_ENCODINGS));
updateAudioOutputDevice(encodingFlags, "stereo");
}
}
};
}
项目：QuranAndroid
文件：QuranPageReadActivity.java
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
//call on back button
onBackPressed();
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN && !AppPreference.isVolumeKeyNavigation()) {
//volume down
audioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_LOWER, 1);
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP && !AppPreference.isVolumeKeyNavigation()) {
//volume up
audioManager.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_RAISE, 1);
}
return true;
}
项目：CustomAndroidKeyboard
文件：SimpleIME.java
/**
* Play sound on key press
*
* @param keyCode of pressed key
*/
private void playClick(int keyCode) {
AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE);
switch (keyCode) {
case Constants.KeyCode.SPACE:
am.playSoundEffect(AudioManager.FX_KEYPRESS_SPACEBAR);
break;
case Keyboard.KEYCODE_DONE:
am.playSoundEffect(AudioManager.FX_KEYPRESS_RETURN);
break;
case Constants.KeyCode.RETURN:
am.playSoundEffect(AudioManager.FX_KEYPRESS_RETURN);
break;
case Keyboard.KEYCODE_DELETE:
am.playSoundEffect(AudioManager.FX_KEYPRESS_DELETE);
break;
default:
am.playSoundEffect(AudioManager.FX_KEYPRESS_STANDARD);
break;
}
}
项目：LiveWallPaper
文件：CameraLiveWallpaper.java
/**
* 播放
*/
private void play(SurfaceHolder surfaceHolder,String videoPath){
mediaPlayer = new MediaPlayer();
// 设置多媒体流类型
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
// 设置用于展示mediaPlayer的容器
mediaPlayer.setSurface(surfaceHolder.getSurface());
// mediaPlayer.setDisplay(surfaceHolder);//用这个方法会报 Wallpapers do not support keep screen on
try {
mediaPlayer.setDataSource(videoPath);
mediaPlayer.prepare();
mediaPlayer.start();
mediaPlayer.setLooping(true);
} catch (Exception e) {
Log.i("通知", "播放过程中出现了错误哦");
}
}
项目：buildAPKsApps
文件：MainActivity.java
private void setButtonClickListener() {
Button toggleButton = (Button) findViewById(R.id.toggleButton);
toggleButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (mPhoneIsSilent) {
// Change back to normal mode
mAudioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
mPhoneIsSilent = false;
} else {
// Change to silent mode
mAudioManager.setRingerMode(AudioManager.RINGER_MODE_SILENT);
mPhoneIsSilent = true;
}
// Now toggle the UI again
toggleUi();
}
});
}
项目：airgram
文件：MediaController.java
private void checkAudioFocus(MessageObject messageObject) {
int neededAudioFocus;
if (messageObject.isVoice()) {
if (useFrontSpeaker) {
neededAudioFocus = 3;
} else {
neededAudioFocus = 2;
}
} else {
neededAudioFocus = 1;
}
if (hasAudioFocus != neededAudioFocus) {
hasAudioFocus = neededAudioFocus;
int result;
if (neededAudioFocus == 3) {
result = NotificationsController.getInstance().audioManager.requestAudioFocus(this, AudioManager.STREAM_VOICE_CALL, AudioManager.AUDIOFOCUS_GAIN);
} else {
result = NotificationsController.getInstance().audioManager.requestAudioFocus(this, AudioManager.STREAM_MUSIC, neededAudioFocus == 2 ? AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK : AudioManager.AUDIOFOCUS_GAIN);
}
if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
audioFocus = AUDIO_FOCUSED;
}
}
}
项目：Pocket-Plays-for-Twitch
文件：VideoCastManager.java
protected VideoCastManager(Context context, CastConfiguration castConfiguration) {
super(context, castConfiguration);
LOGD(TAG, "VideoCastManager is instantiated");
mDataNamespace = castConfiguration.getNamespaces() == null ? null
: castConfiguration.getNamespaces().get(0);
Class<?> targetActivity = castConfiguration.getTargetActivity();
if (targetActivity == null) {
targetActivity = DEFAULT_TARGET_ACTIVITY;
}
mTargetActivity = targetActivity;
mPreferenceAccessor.saveStringToPreference(PREFS_KEY_CAST_ACTIVITY_NAME,
mTargetActivity.getName());
if (!TextUtils.isEmpty(mDataNamespace)) {
mPreferenceAccessor.saveStringToPreference(PREFS_KEY_CAST_CUSTOM_DATA_NAMESPACE,
mDataNamespace);
}
mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
mNotificationServiceClass = castConfiguration.getCustomNotificationService();
if (mNotificationServiceClass == null) {
mNotificationServiceClass = VideoCastNotificationService.class;
}
}
项目：AssistantBySDK
文件：SpeechPlayer.java
/**
* 播放音频文件
*
* @param file
* @param repeat
*/
private void playAssetsFile(String file, boolean repeat) {
try {
Log.i(TAG, "file:" + file);
currentFile = file;
AssetFileDescriptor fd = mAssetManager.openFd(file);
mPlayer.reset();
mPlayer.setDataSource(fd.getFileDescriptor(), fd.getStartOffset(), fd.getLength());
mPlayer.setAudioStreamType(mediator.isBlueToothHeadSet() ? AudioManager.STREAM_VOICE_CALL : AudioManager.STREAM_MUSIC);
mPlayer.setLooping(repeat);
mPlayer.prepareAsync();
fd.close();
} catch (Exception e) {
e.printStackTrace();
}
}
项目：sonicky
文件：Encoder.java
private void init_(boolean eccEnabled) {
mEccEncoder = EccInstanceProvider.getEncoder(eccEnabled);
int minBufferSizeInBytes = AudioTrack.getMinBufferSize(
RATE,
AudioFormat.CHANNEL_OUT_MONO,
AudioFormat.ENCODING_PCM_16BIT);
// 44.1kHz mono 16bit
mAudioTrack = new AudioTrack(
AudioManager.STREAM_MUSIC,
RATE,
AudioFormat.CHANNEL_OUT_MONO,
AudioFormat.ENCODING_PCM_16BIT,
minBufferSizeInBytes,
AudioTrack.MODE_STREAM);
mExecutorService = Executors.newSingleThreadExecutor();
}
项目：ThunderMusic
文件：Permission.java
@Override
public void onCreate(Bundle icicle) {
mContext = this;
super.onCreate(icicle);
setVolumeControlStream(AudioManager.STREAM_MUSIC);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(mContext,
Manifest.permission.READ_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(mContext,
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_SETTINGS}, 0);
} else {
startThunderMusic();
}
} else {
startThunderMusic();
}
}
项目：QrCode
文件：BeepManager.java
private MediaPlayer buildMediaPlayer(Context activity) {
MediaPlayer mediaPlayer = new MediaPlayer();
try {
AssetFileDescriptor file = activity.getResources().openRawResourceFd(this.rawBeep);
try {
mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
} finally {
file.close();
}
mediaPlayer.setOnErrorListener(this);
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setLooping(false);
mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
mediaPlayer.prepare();
return mediaPlayer;
} catch (IOException ioe) {
Log.w(TAG, ioe);
mediaPlayer.release();
return null;
}
}
项目：mobile-app-dev-book
文件：AudioActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_audio);
ButterKnife.bind(this);
currentState = Status.START;
myHandler = new Handler();
audioMgr = (AudioManager) getSystemService(AUDIO_SERVICE);
Intent incoming = getIntent();
if (incoming.hasExtra("AUDIO_PATH")) {
audioFilePath = incoming.getStringExtra("AUDIO_PATH");
// audioFilePath = dataUri.getPath();
recordBtn.setEnabled(true);
} else {
recordBtn.setEnabled(false);
}
int currentPerm = ActivityCompat.checkSelfPermission(this,
permArr[0]);
if (currentPerm == PackageManager.PERMISSION_DENIED) {
ActivityCompat.requestPermissions(this, permArr, AUDIO_PERMISSION_REQUEST);
}
}
项目：CCDownload
文件：MediaPlayActivity.java
@Override
public void surfaceCreated(SurfaceHolder holder) {
try {
player.setAudioStreamType(AudioManager.STREAM_MUSIC);
player.setOnBufferingUpdateListener(this);
player.setOnPreparedListener(this);
player.setDisplay(holder);
player.setScreenOnWhilePlaying(true);
if (isLocalPlay) {
player.setDataSource(path);
}
player.prepareAsync();
} catch (Exception e) {
Log.e("videoPlayer", "error", e);
}
Log.i("videoPlayer", "surface created");
}
项目：QSVideoPlayer
文件：QSVideoViewHelp.java
@Override
public void onGestureBegin(int type) {
if (!isWindowGesture & currentMode != MODE_WINDOW_FULLSCREEN)
return;
//进度
if (type == HandleTouchEvent.GestureEvent.TOUCH_FULL_X & checkReady())
tempPosition = getPosition();
//亮度
if (type == HandleTouchEvent.GestureEvent.TOUCH_LEFT_Y) {
tempBrightness = (int) (Util.scanForActivity(getContext()).getWindow().getAttributes().screenBrightness * 255);
if (tempBrightness < 0)
try {//系统亮度 不能activity取
tempBrightness = Settings.System.getInt(getContext().getContentResolver(), Settings.System.SCREEN_BRIGHTNESS);
} catch (Settings.SettingNotFoundException e) {
e.printStackTrace();
tempBrightness = 0;
}
}
//音量
if (type == HandleTouchEvent.GestureEvent.TOUCH_RIGHT_Y)
tempVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
}
项目：FanChat
文件：EaseNotifier.java
/**
* this function can be override
* @param context
* @return
*/
public EaseNotifier init(Context context){
appContext = context;
notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
packageName = appContext.getApplicationInfo().packageName;
if (Locale.getDefault().getLanguage().equals("zh")) {
msgs = msg_ch;
} else {
msgs = msg_eng;
}
audioManager = (AudioManager) appContext.getSystemService(Context.AUDIO_SERVICE);
vibrator = (Vibrator) appContext.getSystemService(Context.VIBRATOR_SERVICE);
return this;
}
项目：alerta-fraude
文件：AudioHandler.java
/**
* Set the audio device to be used for playback.
*
* @param output 1=earpiece, 2=speaker
*/
@SuppressWarnings("deprecation")
public void setAudioOutputDevice(int output) {
String TAG1 = "AudioHandler.setAudioOutputDevice(): Error : ";
AudioManager audiMgr = (AudioManager) this.cordova.getActivity().getSystemService(Context.AUDIO_SERVICE);
if (output == 2) {
audiMgr.setRouting(AudioManager.MODE_NORMAL, AudioManager.ROUTE_SPEAKER, AudioManager.ROUTE_ALL);
}
else if (output == 1) {
audiMgr.setRouting(AudioManager.MODE_NORMAL, AudioManager.ROUTE_EARPIECE, AudioManager.ROUTE_ALL);
}
else {
LOG.e(TAG1," Unknown output device");
}
}
项目：ZxingScan
文件：CaptureFragment.java
public void StartCameraScanner() {
inactivityTimer = new InactivityTimer(this.getActivity());
if (!hasSurface) {
initCamera(surfaceHolder);
} else {
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
decodeFormats = null;
characterSet = null;
playBeep = true;
AudioManager audioService = (AudioManager) getActivity().getSystemService(getActivity().AUDIO_SERVICE);
if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
playBeep = false;
}
initBeepSound();
vibrate = true;
}
项目：MVideo
文件：IjkVideoView.java
public void release(boolean cleartargetstate) {
if (mRenderView != null && renderCallback != null)
mRenderView.removeRenderCallback(renderCallback);
if (mMediaPlayer != null) {
mMediaPlayer.reset();
mMediaPlayer.release();
mMediaPlayer = null;
mCurrentState = STATE_IDLE;
if (cleartargetstate) {
mTargetState = STATE_IDLE;
}
AudioManager am = (AudioManager) mAppContext.getSystemService(Context.AUDIO_SERVICE);
am.abandonAudioFocus(null);
}
}
项目：GravityBox
文件：KeyButtonView.java
public KeyButtonView(Context context) {
super(context);
mCode = 0;
setDrawingAlpha(mQuiescentAlpha);
setClickable(true);
mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
mRipple = new KeyButtonRipple(context, this);
setBackground(mRipple);
}
项目：HeroVideo-master
文件：MediaPlayer.java
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
isDragging = true;
show(3600000);
handler.removeMessages(MESSAGE_SHOW_PROGRESS);
if (instantSeeking){
audioManager.setStreamMute(AudioManager.STREAM_MUSIC, true);
}
}
项目：HeroVideo-master
文件：MediaPlayer.java
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
if (!instantSeeking){
videoView.seekTo((int) ((duration * seekBar.getProgress()*1.0) / 1000));
}
show(defaultTimeout);
handler.removeMessages(MESSAGE_SHOW_PROGRESS);
audioManager.setStreamMute(AudioManager.STREAM_MUSIC, false);
isDragging = false;
handler.sendEmptyMessageDelayed(MESSAGE_SHOW_PROGRESS, 1000);
}
项目：PlayerBase
文件：IjkVideoView.java
public void stopPlayback() {
if (mMediaPlayer != null) {
mMediaPlayer.stop();
mMediaPlayer.release();
mMediaPlayer = null;
if (mHudViewHolder != null)
mHudViewHolder.setMediaPlayer(null);
mCurrentState = STATE_IDLE;
mTargetState = STATE_IDLE;
AudioManager am = (AudioManager) mAppContext.getSystemService(Context.AUDIO_SERVICE);
am.abandonAudioFocus(null);
}
}
项目：airgram
文件：MusicPlayerService.java
@Override
public void onCreate() {
audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
NotificationCenter.getInstance().addObserver(this, NotificationCenter.audioProgressDidChanged);
NotificationCenter.getInstance().addObserver(this, NotificationCenter.audioPlayStateChanged);
super.onCreate();
}
项目：LifeHelper
文件：BeepManager.java
private synchronized void updatePrefs() {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
playBeep = shouldBeep(prefs, activity);
vibrate = true;
if (playBeep && mediaPlayer == null) {
// The volume on STREAM_SYSTEM is not adjustable, and users found it
// too loud,
// so we now play on the music stream.
activity.setVolumeControlStream(AudioManager.STREAM_MUSIC);
mediaPlayer = buildMediaPlayer(activity);
}
}
项目：androidtv-sample
文件：ExtractorRendererBuilder.java
@Override
public void buildRenderers(DemoPlayer player) {
Allocator allocator = new DefaultAllocator(BUFFER_SEGMENT_SIZE);
// Build the video and audio renderers.
DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter(player.getMainHandler(),
null);
DataSource dataSource = new DefaultUriDataSource(context, bandwidthMeter, userAgent);
ExtractorSampleSource sampleSource = new ExtractorSampleSource(uri, dataSource, allocator,
BUFFER_SEGMENT_COUNT * BUFFER_SEGMENT_SIZE);
MediaCodecVideoTrackRenderer videoRenderer = new MediaCodecVideoTrackRenderer(context,
sampleSource, MediaCodecSelector.DEFAULT,
MediaCodec.VIDEO_SCALING_MODE_SCALE_TO_FIT, 5000,
player.getMainHandler(), player, 50);
MediaCodecAudioTrackRenderer audioRenderer = new MediaCodecAudioTrackRenderer(sampleSource,
MediaCodecSelector.DEFAULT, null, true, player.getMainHandler(), player,
AudioCapabilities.getCapabilities(context), AudioManager.STREAM_MUSIC);
TrackRenderer textRenderer = new TextTrackRenderer(sampleSource, player,
player.getMainHandler().getLooper());
// Invoke the callback.
TrackRenderer[] renderers = new TrackRenderer[DemoPlayer.RENDERER_COUNT];
renderers[DemoPlayer.TYPE_VIDEO] = videoRenderer;
renderers[DemoPlayer.TYPE_AUDIO] = audioRenderer;
renderers[DemoPlayer.TYPE_TEXT] = textRenderer;
player.onRenderers(renderers, bandwidthMeter);
}
项目：VideoRecorder-master
文件：VideoPlayTextureView.java
/**
* 准备播放之前额准备动作，同步调用，适合于文件
* 如果是流，调用asyncPrepare()
* @param path
*/
public void prepare(String path) {
try {
currentMediaState = MediaState.PREPARE;
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDataSource(path);
mediaPlayer.setSurface(surface);
mediaPlayer.prepare();
} catch (Exception e) {
}
}
项目：mobile-app-dev-book
文件：AudioActivity.java
private void startPlayback() {
try {
if (audioPlay == null)
initAudioPlayer();
int result = audioMgr.requestAudioFocus(audioFocusListener,
AudioManager.STREAM_MUSIC, AudioManager
.AUDIOFOCUS_GAIN);
if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED)
audioPlay.start();
} catch (IOException ioe) {
Snackbar.make(recordBtn, "Unable to initialize Audio", Snackbar.LENGTH_LONG).show();
}
}
项目：MKVideoPlayer
文件：MKPlayer.java
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
isDragging = true;
show(3600000);
handler.removeMessages(MESSAGE_SHOW_PROGRESS);
if (instantSeeking){
audioManager.setStreamMute(AudioManager.STREAM_MUSIC, true);
}
}
项目：Zxing
文件：BeepManager.java
public void updatePrefs() {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(activity);
playBeep = shouldBeep(prefs, activity);
vibrate = prefs.getBoolean(activity.getString(R.string.preferences_vibrate), false);
if (playBeep && mediaPlayer == null) {
// The volume on STREAM_SYSTEM is not adjustable, and users found it too loud,
// so we now play on the music stream.
activity.setVolumeControlStream(AudioManager.STREAM_MUSIC);
mediaPlayer = buildMediaPlayer(activity);
}
}
项目：Exoplayer2Radio
文件：PlayerService.java
@Override
public void onCreate() {
super.onCreate();
// load app state
loadAppState(getApplication());
// set up variables
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
mStationMetadataReceived = false;
mSession = createMediaSession(this);
mUserAgent = Util.getUserAgent(this, APPLICATION_NAME);
// create Wifi and wake locks
mWifiLock = ((WifiManager) this.getSystemService(Context.WIFI_SERVICE)).createWifiLock(WifiManager.WIFI_MODE_FULL, "Transistor_wifi_lock");
PowerManager powerManager = (PowerManager) getSystemService(POWER_SERVICE);
mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "Transistor_wake_lock");
// create media controller
try {
mController = new MediaControllerCompat(getApplicationContext(), mSession.getSessionToken());
} catch (RemoteException e) {
LogHelper.e(LOG_TAG, "RemoteException: " + e);
e.printStackTrace();
}
// get instance of mExoPlayer
createExoPlayer();
}
项目：GestureVideoView
文件：GestureVideoView.java
/**
* 调节系统媒体音量
*
* @param volumePer
*/
private void updateSystemVolume(int volumePer) {
int targetVolumePer = volumePer + mGestureView.getVolumeProgress();
mGestureView.setVolumeProgress(targetVolumePer);
int targetVolume = (int) (targetVolumePer * 1.0F / 100 * maxVolume);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, targetVolume, 0);
Log.i(TAG, "updateSystemVolume: targetVolumePer = " + targetVolumePer + ", targetVolume = " + targetVolume);
}
项目：EditorImageAndText
文件：VideoActivity.java
private void prepare(Surface surface) {
try {
mediaPlayer.reset();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
// 设置需要播放的视频
mediaPlayer.setDataSource(path);
// 把视频画面输出到Surface
mediaPlayer.setSurface(surface);
mediaPlayer.setLooping(false);
mediaPlayer.prepareAsync();
mediaPlayer.seekTo(0);
} catch (Exception e) {
}
}