當手機響起時,我試圖暫停媒體播放器.我使用

android站點的示例代碼.就這樣

public void onAudioFocusChange(int focusChange) {

switch (focusChange) {

case AudioManager.AUdioFOCUS_GAIN:

// resume playback

if (mMediaPlayer != null && !mMediaPlayer.isPlaying()) {

mMediaPlayer.start();

mMediaPlayer.setVolume(1.0f,1.0f);

}

break;

case AudioManager.AUdioFOCUS_LOSS:

// Lost focus for an unbounded amount of time: stop playback and

// release media player

stopMediaPlayer();

break;

case AudioManager.AUdioFOCUS_LOSS_TRANSIENT:

// Lost focus for a short time,but we have to stop

// playback. We don't release the media player because playback

// is likely to resume

if (mMediaPlayer.isPlaying())

mMediaPlayer.pause();

break;

case AudioManager.AUdioFOCUS_LOSS_TRANSIENT_CAN_DUCK:

// Lost focus for a short time,but it's ok to keep playing

// at an attenuated level

if (mMediaPlayer.isPlaying())

mMediaPlayer.setVolume(0.1f,0.1f);

break;

}

}

當手機振鈴AUdioFOCUS_LOSS_TRANSIENT發送時;沒關系當通話結束時,發送AUdioFOCUS_GAIN,播放器繼續播放;這也行.發送AUdioFOCUS_GAIN后,發送AUdioFOCUS_LOSS.有什么想法為什么失去音頻焦點？提前Thx.

總結

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