android.media.session.PlaybackState#getState ( )源码实例Demo

下面列出了android.media.session.PlaybackState#getState ( ) 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： android_9.0.0_r45 文件： MediaSessionRecord.java

@Override
public void setPlaybackState(PlaybackState state) {
    int oldState = mPlaybackState == null
            ? PlaybackState.STATE_NONE : mPlaybackState.getState();
    int newState = state == null
            ? PlaybackState.STATE_NONE : state.getState();
    synchronized (mLock) {
        mPlaybackState = state;
    }
    final long token = Binder.clearCallingIdentity();
    try {
        mService.onSessionPlaystateChanged(MediaSessionRecord.this, oldState, newState);
    } finally {
        Binder.restoreCallingIdentity(token);
    }
    mHandler.post(MessageHandler.MSG_UPDATE_PLAYBACK_STATE);
}

源代码2 项目： scroball 文件： PlayerState.java

public void setPlaybackState(PlaybackState playbackState) {
  if (playbackItem == null) {
    return;
  }

  playbackItem.updateAmountPlayed();

  int state = playbackState.getState();
  boolean isPlaying = state == PlaybackState.STATE_PLAYING;

  if (isPlaying) {
    Log.d(TAG, "Track playing");
    postEvent(playbackItem.getTrack());
    playbackItem.startPlaying();
    notificationManager.updateNowPlaying(playbackItem.getTrack());
    scheduleSubmission();
  } else {
    Log.d(TAG, String.format("Track paused (state %d)", state));
    postEvent(Track.empty());
    playbackItem.stopPlaying();
    notificationManager.removeNowPlaying();
    scrobbler.submit(playbackItem);
  }
}

源代码3 项目： BuildingForAndroidTV 文件： PlaybackOverlayFragment.java

@Override
public void onPlaybackStateChanged(PlaybackState state) {
    Log.d(TAG, "playback state changed: " + state.getState());
    if (state.getState() == PlaybackState.STATE_PLAYING && mCurrentPlaybackState != PlaybackState.STATE_PLAYING) {
        mCurrentPlaybackState = PlaybackState.STATE_PLAYING;
        startProgressAutomation();
        setFadingEnabled(true);
        mPlayPauseAction.setIndex(PlayPauseAction.PAUSE);
        mPlayPauseAction.setIcon(mPlayPauseAction.getDrawable(PlayPauseAction.PAUSE));
        notifyChanged(mPlayPauseAction);
    } else if (state.getState() == PlaybackState.STATE_PAUSED && mCurrentPlaybackState != PlaybackState.STATE_PAUSED) {
        mCurrentPlaybackState = PlaybackState.STATE_PAUSED;
        stopProgressAutomation();
        setFadingEnabled(false);
        mPlayPauseAction.setIndex(PlayPauseAction.PLAY);
        mPlayPauseAction.setIcon(mPlayPauseAction.getDrawable(PlayPauseAction.PLAY));
        notifyChanged(mPlayPauseAction);
    }

    int currentTime = (int)state.getPosition();
    mPlaybackControlsRow.setCurrentTime(currentTime);
    mPlaybackControlsRow.setBufferedProgress(currentTime + SIMULATED_BUFFERED_TIME);
}

源代码4 项目： android_9.0.0_r45 文件： MediaSessionRecord.java

private PlaybackState getStateWithUpdatedPosition() {
    PlaybackState state;
    long duration = -1;
    synchronized (mLock) {
        state = mPlaybackState;
        if (mMetadata != null && mMetadata.containsKey(MediaMetadata.METADATA_KEY_DURATION)) {
            duration = mMetadata.getLong(MediaMetadata.METADATA_KEY_DURATION);
        }
    }
    PlaybackState result = null;
    if (state != null) {
        if (state.getState() == PlaybackState.STATE_PLAYING
                || state.getState() == PlaybackState.STATE_FAST_FORWARDING
                || state.getState() == PlaybackState.STATE_REWINDING) {
            long updateTime = state.getLastPositionUpdateTime();
            long currentTime = SystemClock.elapsedRealtime();
            if (updateTime > 0) {
                long position = (long) (state.getPlaybackSpeed()
                        * (currentTime - updateTime)) + state.getPosition();
                if (duration >= 0 && position > duration) {
                    position = duration;
                } else if (position < 0) {
                    position = 0;
                }
                PlaybackState.Builder builder = new PlaybackState.Builder(state);
                builder.setState(state.getState(), position, state.getPlaybackSpeed(),
                        currentTime);
                result = builder.build();
            }
        }
    }
    return result == null ? state : result;
}

源代码5 项目： AsteroidOSSync 文件： MediaService.java

@Override
public void onPlaybackStateChanged(@NonNull PlaybackState state) {
    super.onPlaybackStateChanged(state);
    byte[] data = new byte[1];
    data[0] = (byte)(state.getState() == PlaybackState.STATE_PLAYING ?  1 : 0);
    mDevice.write(mediaPlayingCharac, data, MediaService.this);
}

源代码6 项目： android-music-player 文件： MusicPlayerActivity.java

private void updatePlaybackState(PlaybackState state) {
    mCurrentState = state;
    if (state == null || state.getState() == PlaybackState.STATE_PAUSED ||
            state.getState() == PlaybackState.STATE_STOPPED) {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_play_arrow_black_36dp));
    } else {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_pause_black_36dp));
    }
    mPlaybackControls.setVisibility(state == null ? View.GONE : View.VISIBLE);
}

源代码7 项目： android-music-player 文件： MusicPlayerActivity.java

private void updatePlaybackState(PlaybackState state) {
    mCurrentState = state;
    if (state == null || state.getState() == PlaybackState.STATE_PAUSED ||
            state.getState() == PlaybackState.STATE_STOPPED) {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_play_arrow_black_36dp));
    } else {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_pause_black_36dp));
    }
    mPlaybackControls.setVisibility(state == null ? View.GONE : View.VISIBLE);
}

源代码8 项目： io2015-codelabs 文件： MusicPlayerActivity.java

private void updatePlaybackState(PlaybackState state) {
    mCurrentState = state;
    if (state == null || state.getState() == PlaybackState.STATE_PAUSED ||
            state.getState() == PlaybackState.STATE_STOPPED) {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_play_arrow_black_36dp));
    } else {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_pause_black_36dp));
    }
    mPlaybackControls.setVisibility(state == null ? View.GONE : View.VISIBLE);
}

源代码9 项目： io2015-codelabs 文件： MusicPlayerActivity.java

private void updatePlaybackState(PlaybackState state) {
    mCurrentState = state;
    if (state == null || state.getState() == PlaybackState.STATE_PAUSED ||
            state.getState() == PlaybackState.STATE_STOPPED) {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_play_arrow_black_36dp));
    } else {
        mPlayPause.setImageDrawable(getDrawable(R.drawable.ic_pause_black_36dp));
    }
    mPlaybackControls.setVisibility(state == null ? View.GONE : View.VISIBLE);
}

源代码10 项目： AcDisplay 文件： MediaController2Lollipop.java

@Nullable
private MediaController pickBestMediaController(
        @NonNull List<MediaController> list) {
    int mediaControllerScore = -1;
    MediaController mediaController = null;
    for (MediaController mc : list) {
        if (mc == null) continue;
        int mcScore = 0;

        // Check for the current state
        PlaybackState state = mc.getPlaybackState();
        if (state != null) {
            switch (state.getState()) {
                case PlaybackState.STATE_STOPPED:
                case PlaybackState.STATE_ERROR:
                    break;
                default:
                    mcScore++;
                    break;
            }
        }

        if (mcScore > mediaControllerScore) {
            mediaControllerScore = mcScore;
            mediaController = mc;
        }
    }
    return mediaController;
}

源代码11 项目： android-music-player 文件： MediaNotificationManager.java

public void update(MediaMetadata metadata, PlaybackState state, MediaSession.Token token) {
    if (state == null || state.getState() == PlaybackState.STATE_STOPPED ||
            state.getState() == PlaybackState.STATE_NONE) {
        mService.stopForeground(true);
        try {
            mService.unregisterReceiver(this);
        } catch (IllegalArgumentException ex) {
            // ignore receiver not registered
        }
        mService.stopSelf();
        return;
    }
    if (metadata == null) {
        return;
    }
    boolean isPlaying = state.getState() == PlaybackState.STATE_PLAYING;
    Notification.Builder notificationBuilder = new Notification.Builder(mService);
    MediaDescription description = metadata.getDescription();

    notificationBuilder
            .setStyle(new Notification.MediaStyle()
                    .setMediaSession(token)
                    .setShowActionsInCompactView(0, 1, 2))
            .setColor(mService.getApplication().getResources().getColor(R.color.notification_bg))
            .setSmallIcon(R.drawable.ic_notification)
            .setVisibility(Notification.VISIBILITY_PUBLIC)
            .setContentIntent(createContentIntent())
            .setContentTitle(description.getTitle())
            .setContentText(description.getSubtitle())
            .setLargeIcon(MusicLibrary.getAlbumBitmap(mService, description.getMediaId()))
            .setOngoing(isPlaying)
            .setWhen(isPlaying ? System.currentTimeMillis() - state.getPosition() : 0)
            .setShowWhen(isPlaying)
            .setUsesChronometer(isPlaying);

    // If skip to next action is enabled
    if ((state.getActions() & PlaybackState.ACTION_SKIP_TO_PREVIOUS) != 0) {
        notificationBuilder.addAction(mPrevAction);
    }

    notificationBuilder.addAction(isPlaying ? mPauseAction : mPlayAction);

    // If skip to prev action is enabled
    if ((state.getActions() & PlaybackState.ACTION_SKIP_TO_NEXT) != 0) {
        notificationBuilder.addAction(mNextAction);
    }

    Notification notification = notificationBuilder.build();

    if (isPlaying && !mStarted) {
        mService.startService(new Intent(mService.getApplicationContext(), MusicService.class));
        mService.startForeground(NOTIFICATION_ID, notification);
        mStarted = true;
    } else {
        if (!isPlaying) {
            mService.stopForeground(false);
            mStarted = false;
        }
        mNotificationManager.notify(NOTIFICATION_ID, notification);
    }
}

源代码12 项目： io2015-codelabs 文件： MediaNotificationManager.java

public void update(MediaMetadata metadata, PlaybackState state, MediaSession.Token token) {
    if (state == null || state.getState() == PlaybackState.STATE_STOPPED ||
            state.getState() == PlaybackState.STATE_NONE) {
        mService.stopForeground(true);
        try {
            mService.unregisterReceiver(this);
        } catch (IllegalArgumentException ex) {
            // ignore receiver not registered
        }
        mService.stopSelf();
        return;
    }
    if (metadata == null) {
        return;
    }
    boolean isPlaying = state.getState() == PlaybackState.STATE_PLAYING;
    Notification.Builder notificationBuilder = new Notification.Builder(mService);
    MediaDescription description = metadata.getDescription();

    notificationBuilder
            .setStyle(new Notification.MediaStyle()
                    .setMediaSession(token)
                    .setShowActionsInCompactView(0, 1, 2))
            .setColor(mService.getApplication().getResources().getColor(R.color.notification_bg))
            .setSmallIcon(R.drawable.ic_notification)
            .setVisibility(Notification.VISIBILITY_PUBLIC)
            .setContentIntent(createContentIntent())
            .setContentTitle(description.getTitle())
            .setContentText(description.getSubtitle())
            .setLargeIcon(MusicLibrary.getAlbumBitmap(mService, description.getMediaId()))
            .setOngoing(isPlaying)
            .setWhen(isPlaying ? System.currentTimeMillis() - state.getPosition() : 0)
            .setShowWhen(isPlaying)
            .setUsesChronometer(isPlaying);

    // If skip to next action is enabled
    if ((state.getActions() & PlaybackState.ACTION_SKIP_TO_PREVIOUS) != 0) {
        notificationBuilder.addAction(mPrevAction);
    }

    notificationBuilder.addAction(isPlaying ? mPauseAction : mPlayAction);

    // If skip to prev action is enabled
    if ((state.getActions() & PlaybackState.ACTION_SKIP_TO_NEXT) != 0) {
        notificationBuilder.addAction(mNextAction);
    }

    Notification notification = notificationBuilder.build();

    if (isPlaying && !mStarted) {
        mService.startService(new Intent(mService.getApplicationContext(), MusicService.class));
        mService.startForeground(NOTIFICATION_ID, notification);
        mStarted = true;
    } else {
        if (!isPlaying) {
            mService.stopForeground(false);
            mStarted = false;
        }
        mNotificationManager.notify(NOTIFICATION_ID, notification);
    }
}

方法所在类

android.media.session.PlaybackState