我正在尝试播放闹铃铃声。但是，播放在随机秒数后停止，它不会播放整个铃声。有人知道是什么原因引起的吗？
代码不是我自己的。这是一个研究解决方案：
Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
if(alert == null){
// alert is null, using backup
alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
if(alert == null){ // I can't see this ever being null (as always have a default notification) but just in case
// alert backup is null, using 2nd backup
alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
}
}
Ringtone a = RingtoneManager.getRingtone(getApplicationContext(), alert);
a.play();
此事件在buttonpress上发生。谢谢！
我只能从AVD打印stacktrage，但我没有声音文件。
08-05 19:39:43.093: D/dalvikvm(611): GC_CONCURRENT freed 370K, 17% free 2526K/3016K, paused 5ms+52ms, total 230ms
08-05 19:39:43.093: W/ActivityManager(281): Unbind failed: could not find connection for android.os.BinderProxy@40e841e8
08-05 19:39:47.843: D/dalvikvm(781): GC_CONCURRENT freed 595K, 14% free 4530K/5256K, paused 24ms+23ms, total 94ms
08-05 19:39:55.403: D/dalvikvm(781): GC_CONCURRENT freed 586K, 14% free 4532K/5252K, paused 6ms+4ms, total 64ms
08-05 19:40:00.383: D/MediaPlayer(781): Couldn't open file on client side, trying server side
08-05 19:40:00.393: E/MediaPlayerService(40): Couldn't open fd for content://settings/system/alarm_alert
08-05 19:40:00.403: E/MediaPlayer(781): Unable to to create media player
08-05 19:40:00.403: D/Ringtone(781): Problem opening; delegating to remote player
08-05 19:40:00.413: D/dalvikvm(341): GREF has increased to 201
08-05 19:40:00.423: D/MediaPlayer(341): Couldn't open file on client side, trying server side
08-05 19:40:00.443: E/MediaPlayerService(40): Couldn't open fd for content://settings/system/alarm_alert
08-05 19:40:00.443: E/MediaPlayer(341): Unable to to create media player
08-05 19:40:00.443: W/Ringtone(341): Remote playback not allowed: java.io.IOException: setDataSource failed.: status=0x80000000
08-05 19:40:00.443: D/Ringtone(341): Problem opening; delegating to remote player
08-05 19:40:00.453: W/Ringtone(341): Neither local nor remote playback available
08-05 19:40:06.553: D/dalvikvm(781): GC_CONCURRENT freed 585K, 14% free 4537K/5252K, paused 6ms+4ms, total 90ms
08-05 19:40:19.173: D/dalvikvm(781): GC_CONCURRENT freed 583K, 14% free 4541K/5252K, paused 5ms+18ms, total 92ms
至于Media Player方法。我也试过了。同样的问题。