android.media.MediaPlayer#start ( )源码实例Demo

下面列出了android.media.MediaPlayer#start ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： coursera-android 文件： AudioRecordingActivity.java

private void startPlaying() {

        mPlayer = new MediaPlayer();

        mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {
                mPlayButton.performClick();
                mPlayButton.setChecked(false);
            }
        });

        try {
            mPlayer.setDataSource(mFileName);
            mPlayer.prepare();
            mPlayer.start();
        } catch (IOException e) {
            Log.e(TAG, "Couldn't prepare and start MediaPlayer");
        }

    }

源代码2 项目： fullscreen-video-view 文件： FullscreenVideoView.java

@Override
public void onMediaPlayerPrepared(
        MediaPlayer mediaPlayer,
        int videoWidth,
        int videoHeight,
        boolean isAutoStartEnabled
) {
    hideProgressBar();

    if (surfaceView != null) {
        surfaceView.updateLayoutParams(videoWidth, videoHeight);
    }

    if (!isVisible) {
        isMediaPlayerPrepared = true;
        // Start media player if auto start is enabled
        if (isAutoStartEnabled) {
            mediaPlayer.start();
            hideThumbnail();
        }
    }
    // Seek to a specific time
    seekTo(seekToTimeMillis);
}

源代码3 项目： xDrip 文件： Notifications.java

private void soundAlert(String soundUri) {
    manager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
    int maxVolume = manager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
    currentVolume = manager.getStreamVolume(AudioManager.STREAM_MUSIC);
    manager.setStreamVolume(AudioManager.STREAM_MUSIC, maxVolume, 0);
    Uri notification = Uri.parse(soundUri);
    MediaPlayer player = MediaPlayer.create(mContext, notification);

    player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mp) {
            manager.setStreamVolume(AudioManager.STREAM_MUSIC, currentVolume, 0);
        }
    });
    player.start();
}

源代码4 项目： xDrip 文件： Notifications.java

public static void soundAlert(String soundUri) {
    manager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
    int maxVolume = manager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
    currentVolume = manager.getStreamVolume(AudioManager.STREAM_MUSIC);
    manager.setStreamVolume(AudioManager.STREAM_MUSIC, maxVolume, 0);
    Uri notification = Uri.parse(bg_notification_sound);
    MediaPlayer player = MediaPlayer.create(mContext, notification);

    player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mp) {
            manager.setStreamVolume(AudioManager.STREAM_MUSIC, currentVolume, 0);
        }
    });
    player.start();
}

源代码5 项目： astrobee_android 文件： MainActivity.java

public void onPlaybackClick(View v) {
    File f = new File(getExternalFilesDir(null), "recording.mp4");

    if (!mPlaying) {
        try {
            mPlayer = new MediaPlayer();
            mPlayer.setDataSource(f.getAbsolutePath());
            mPlayer.setOnCompletionListener(mOnCompletionListener);
            mPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mPlayer.prepare();
            mPlayer.start();
            mPlaying = true;
            setState(STATE_PLAYING_BACK);
        } catch (IOException e) {
            Log.e(TAG, "error trying to playback recording");
        }
    } else {
        mPlayer.setOnCompletionListener(null);
        mPlayer.stop();
        mPlayer.release();
        mPlayer = null;

        mPlaying = false;
        setState(STATE_IDLE);
    }
}

源代码6 项目： music_player 文件： PlayService.java

@Override
public void onPrepared(MediaPlayer mp) {
    //关闭加载框
    EventBus.getDefault().post(new dismissEvent());
    if (onetime) {
        EventBus.getDefault().post(new UIChangeEvent(MyConstant.initialize));
        onetime = false;
    }
    mp.start();
    MyApplication.setMediaDuration(mp.getDuration());
    MyApplication.setState(MyConstant.playing);
    EventBus.getDefault().post(new UIChangeEvent(MyConstant.mediaChangeAction));
    updateMetaDataAndBuildNotification();
    //储存播放次数
    new savePlayTimesTask().execute();
}

源代码7 项目： Beginner-Level-Android-Studio-Apps 文件： MusicService.java

@Override
    public void onPrepared(MediaPlayer mediaPlayer) {
mediaPlayer.start();
        Intent notIntent = new Intent(this, MainActivity.class);
        notIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendInt = PendingIntent.getActivity(this, 0,
                notIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        Notification.Builder builder = new Notification.Builder(this);

        builder.setContentIntent(pendInt)
                .setSmallIcon(R.drawable.play)
                .setTicker(songTitle)
                .setOngoing(true)
                .setContentTitle("Playing")
  .setContentText(songTitle);
        Notification not = builder.build();

        startForeground(NOTIFY_ID, not);

    }

源代码8 项目： RecordView 文件： RecordView.java

private void playSound(int soundRes) {

        if (isSoundEnabled) {
            if (soundRes == 0)
                return;

            try {
                player = new MediaPlayer();
                AssetFileDescriptor afd = context.getResources().openRawResourceFd(soundRes);
                if (afd == null) return;
                player.setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getLength());
                afd.close();
                player.prepare();
                player.start();
                player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

                    @Override
                    public void onCompletion(MediaPlayer mp) {
                        mp.release();
                    }

                });
                player.setLooping(false);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }


    }

源代码9 项目： redalert-android 文件： SoundLogic.java

static void playSoundURI(Uri alarmSoundUi, Context context) {
    // No URI?
    if (alarmSoundUi == null) {
        return;
    }

    // Already initialized or currently playing?
    stopSound(context);

    // Create new MediaPlayer
    mPlayer = new MediaPlayer();

    // Wake up processor
    mPlayer.setWakeMode(context, PowerManager.PARTIAL_WAKE_LOCK);

    // Set stream type
    mPlayer.setAudioStreamType(getSoundStreamType(context));

    try {
        // Set URI data source
        mPlayer.setDataSource(context, alarmSoundUi);

        // Prepare media player
        mPlayer.prepare();
    }
    catch (Exception exc) {
        // Log it
        Log.e(Logging.TAG, "Media player preparation failed", exc);

        // Show visible error toast
        Toast.makeText(context, exc.toString(), Toast.LENGTH_LONG).show();
    }

    // Actually start playing
    mPlayer.start();
}

源代码10 项目： JZVideoDemo 文件： JZMediaSystem.java

@Override
public void onPrepared(MediaPlayer mediaPlayer) {
    mediaPlayer.start();
    if (currentDataSource.toString().toLowerCase().contains("mp3") ||
            currentDataSource.toString().toLowerCase().contains("wav")) {
        JZMediaManager.instance().mainThreadHandler.post(new Runnable() {
            @Override
            public void run() {
                if (JZVideoPlayerManager.getCurrentJzvd() != null) {
                    JZVideoPlayerManager.getCurrentJzvd().onPrepared();
                }
            }
        });
    }
}

源代码11 项目： ui 文件： noxmllayoutexample.java

private void startPlaying() {
    mPlayer = new MediaPlayer();
    try {
        mPlayer.setDataSource(mFileName);
        mPlayer.prepare();
        mPlayer.start();
    } catch (IOException e) {
        Log.e(LOG_TAG, "prepare() failed");
    }
}

源代码12 项目： SimpleVideoEdit 文件： VideoOutputActivity.java

private void setMediaPlayer() {
    player = new MediaPlayer();
    player.setOnCompletionListener(this);
    player.setOnInfoListener(this);
    player.setOnPreparedListener(this);
    try {
        player.setDataSource(mSVE.getAllInputClips().get(0).getClipPath());
        player.prepare();
        player.start();
    } catch (IOException e) {

    }
}

源代码13 项目： letv 文件： VideoViewTV.java

public void start(MediaPlayer mMediaPlayer) {
    if (isInPlaybackState()) {
        mMediaPlayer.start();
        this.mCurrentState = 3;
    }
    this.mTargetState = 3;
}

源代码14 项目： Game 文件： soundPlayer.java

public static void playSoundFile(String key) {
    try {
        if (!orsc.mudclient.optionSoundDisabled) {
            File sound = orsc.mudclient.soundCache.get(key + ".wav");
            if (sound == null)
                return;
            try {
                MediaPlayer player = new MediaPlayer();
                AudioAttributes audioAttrib = new AudioAttributes.Builder()
                        .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                        .setUsage(AudioAttributes.USAGE_MEDIA)
                        .build();
                player.setDataSource(sound.getPath());
                player.setAudioAttributes(audioAttrib);
                player.setLooping(false);
                player.prepare();
                player.start();
                player.setOnCompletionListener(MediaPlayer::release);

            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }

    } catch (RuntimeException ignored) {
    }
}

源代码15 项目： ml-authentication 文件： MediaPlayerHelper.java

public static void play(Context context, int resId) {
    Log.i(MediaPlayerHelper.class.getName(), "play");

    final MediaPlayer mediaPlayer = MediaPlayer.create(context, resId);
    mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mp) {
            mediaPlayer.release();
        }
    });
    mediaPlayer.start();
}

源代码16 项目： KJFrameForAndroid 文件： RecordButtonUtil.java

public void startPlay(String audioPath, TextView timeView) {
    if (!mIsPlaying) {
        if (!StringUtils.isEmpty(audioPath)) {
            mPlayer = new MediaPlayer();
            try {
                mPlayer.setDataSource(audioPath);
                mPlayer.prepare();
                if (timeView != null) {
                    int len = (mPlayer.getDuration() + 500) / 1000;
                    timeView.setText(len + "s");
                }
                mPlayer.start();
                if (listener != null) {
                    listener.starPlay();
                }
                mIsPlaying = true;
                mPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mp) {
                        stopPlay();
                    }
                });
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else {
            ViewInject.toast(KJActivityStack.create().topActivity()
                    .getString(R.string.record_sound_notfound));
        }
    } else {
        stopPlay();
    } // end playing
}

源代码17 项目： Study_Android_Demo 文件： EaseChatRowVoicePlayClickListener.java

public void playVoice(String filePath) {
	if (!(new File(filePath).exists())) {
		return;
	}
	playMsgId = message.getMsgId();
	AudioManager audioManager = (AudioManager) activity.getSystemService(Context.AUDIO_SERVICE);

	mediaPlayer = new MediaPlayer();
	if (EaseUI.getInstance().getSettingsProvider().isSpeakerOpened()) {
		audioManager.setMode(AudioManager.MODE_NORMAL);
		audioManager.setSpeakerphoneOn(true);
		mediaPlayer.setAudioStreamType(AudioManager.STREAM_RING);
	} else {
		audioManager.setSpeakerphoneOn(false);// 关闭扬声器
		// 把声音设定成Earpiece（听筒）出来，设定为正在通话中
		audioManager.setMode(AudioManager.MODE_IN_CALL);
		mediaPlayer.setAudioStreamType(AudioManager.STREAM_VOICE_CALL);
	}
	try {
		mediaPlayer.setDataSource(filePath);
		mediaPlayer.prepare();
		mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

			@Override
			public void onCompletion(MediaPlayer mp) {
				// TODO Auto-generated method stub
				mediaPlayer.release();
				mediaPlayer = null;
				stopPlayVoice(); // stop animation
			}

		});
		isPlaying = true;
		currentPlayListener = this;
		mediaPlayer.start();
		showAnimation();

		// 如果是接收的消息
		if (message.direct() == EMMessage.Direct.RECEIVE) {
		    if (!message.isAcked() && chatType == ChatType.Chat) {
                    // 告知对方已读这条消息
		            EMClient.getInstance().chatManager().ackMessageRead(message.getFrom(), message.getMsgId());
		    }
			if (!message.isListened() && iv_read_status != null && iv_read_status.getVisibility() == View.VISIBLE) {
				// 隐藏自己未播放这条语音消息的标志
				iv_read_status.setVisibility(View.INVISIBLE);
				message.setListened(true);
				EMClient.getInstance().chatManager().setMessageListened(message);
			}

		}

	} catch (Exception e) {
	    System.out.println();
	}
}

源代码18 项目： audiostream-metadata-retriever 文件： MusicService.java

@Override
public void onPrepared(MediaPlayer mp)
{
    mp.start();
}

源代码19 项目： AndroidAPS 文件： ToastUtils.java

private static void playSound(final Context ctx, final int soundID) {
    final MediaPlayer soundMP = MediaPlayer.create(ctx, soundID);
    soundMP.start();
    soundMP.setOnCompletionListener(MediaPlayer::release);
}

源代码20 项目： ownmdm 文件： LocAlarmService.java

/**
  * ring
  */
 private void ring() { 

 	Util.logDebug("ring()");
 	
 	AudioManager am = (AudioManager) this.getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
 	am.setStreamVolume(AudioManager.STREAM_MUSIC, am.getStreamMaxVolume(AudioManager.STREAM_MUSIC), 0);
 	
 	MediaPlayer mpSound = MediaPlayer.create(getApplicationContext(), R.raw.police); 

 	if (mpSound != null) {
   mpSound.setLooping(false);
   mpSound.start();
}    	
		
 }

方法所在类

android.media.MediaPlayer