[英]Audio focus on my app when tv is running in google tv
當我在電視上瀏覽頻道並啟動應用程序時,我需要我的應用程序來獲得音頻焦點,而在背景播放時,我需要我的應用程序並釋放焦點。 我試過了,但無法在Google電視上工作。 我嘗試了mAudioManager.requestAudioFocus(this,AudioManager.STREAM_MUSIC,AudioManager.AUDIOFOCUS_GAIN); 它在device.ie中運行,即音樂隨着應用程序啟動而停止。 但不適用於帶有任何參數的Google TV。 進行音頻聚焦的步驟是:
1.在MainApp中
AudioManager mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
requestFocus();
在onresume()中
protected void onResume() { super.onResume(); requestFocus(); }
3.在onStop()
protected void onStop(){
abandonFocus();
super.onStop();
Log.e("APPLICATION", "APPLICATION onStop");
}
4.在onDestroy()
public void onDestroy(){
super.onDestroy();
//Log.e("APPLICATION", "APPLICATION onDestroy");
abandonFocus();
}
5. AudioFocus的方法。
/** Requests audio focus. Returns whether request was successful or not. */
public boolean requestFocus() {
return AudioManager.AUDIOFOCUS_REQUEST_GRANTED ==
mAudioManager.requestAudioFocus(this, AudioManager.STREAM_DTMF, AudioManager.AUDIOFOCUS_GAIN);
}
/** Abandons audio focus. Returns whether request was successful or not. */
public boolean abandonFocus() {
return AudioManager.AUDIOFOCUS_REQUEST_GRANTED == mAudioManager.abandonAudioFocus(this);
}
/**
* Called by AudioManager on audio focus changes. We implement this by calling our
* MusicFocusable appropriately to relay the message.
*/
public void onAudioFocusChange(int focusChange) {
switch (focusChange) {
case AudioManager.AUDIOFOCUS_GAIN:
Log.e("AUDIOFOCUS","AUDIOFOCUS_GAIN");
break;
case AudioManager.AUDIOFOCUS_LOSS:Log.e("AUDIOFOCUS","AUDIOFOCUS_LOSS");
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT:Log.e("AUDIOFOCUS","AUDIOFOCUS_LOSS_TRANSIENT");
break;
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK:Log.e("AUDIOFOCUS","AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK");
break;
default:
}
}
誰能幫我這個忙。 誰在Google電視中做了音頻焦點。
謝謝,巴拉斯
我在這里嘗試過,並在Google TV上獲得/接收音頻焦點。 問題可能出在您的應用之前運行的應用未釋放音頻焦點。
音頻焦點確實可以在Google TV上使用,但並非所有應用程序都支持音頻焦點。 我寫了一篇有關如何正確使用Audio Focus的博客文章( http://android-developers.blogspot.com/2013/08/respecting-audio-focus.html ),但是對於忽略或不忽略它的應用程序沒有解決方案使用音頻焦點。
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