WARN / AudioFlinger(33):写阻塞76毫秒,7773延迟写入,螺纹0xb3f0 [英] WARN/AudioFlinger(33): write blocked for 76 msecs, 7773 delayed writes, thread 0xb3f0
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问题描述
我已经创建了一个意向役开始音乐我在后台的应用程序。
这是wirking但我logcat中充斥着消息:
16 09-14:46:30.117:WARN / AudioFlinger(33):写阻塞76毫秒,7773延迟写入,螺纹0xb3f0
没有别的是越来越记录。
下面是我的IntentService:
进口android.app.IntentService;
进口android.content.Intent;
进口android.media.MediaPlayer;
进口android.media.MediaPlayer.OnErrorListener;
进口android.widget.Toast;公共类MusicService扩展IntentService { MediaPlayer的MPLAYER;
私人OnErrorListener mErrorListener; 公共MusicService(){
超级(MusicService);
// TODO自动生成构造函数存根
} @覆盖
保护无效onHandleIntent(意向意图){
// TODO自动生成方法存根
//通常我们会在这里做了一些工作,比如要下载的文件。
} ////////////////////////////////////////////////// ///////// @覆盖
公众诠释onStartCommand(意向意图,诠释旗帜,INT startId) {
Toast.makeText(这一点,服务启动,Toast.LENGTH_SHORT).show();
mPlayer.setLooping(真);
mPlayer.start(); 返回super.onStartCommand(意向,旗帜,startId);
} @覆盖 公共无效的onCreate() {
super.onCreate();
//尝试{
MPLAYER = MediaPlayer.create(这一点,R.raw.jingle);
//}赶上(抛出:IllegalArgumentException五){
//e.printStackTrace();
//}赶上(IllegalStateException异常五){
//e.printStackTrace();
//} 如果(MPLAYER!= NULL)
{
mPlayer.setLooping(真); //设置循环
mPlayer.setVolume(100,100);
}
mPlayer.setOnErrorListener(新OnErrorListener(){ 公共布尔的onError(MediaPlayer的熔点,诠释了什么,整型附加){
// TODO自动生成方法存根
onPlayError();
返回true;
} });
} 私人无效onPlayError(){
Toast.makeText(这一点,音乐播放器失败,Toast.LENGTH_SHORT).show();
如果(MPLAYER!= NULL)
{
尝试{
mPlayer.stop();
mPlayer.release();
} {最后
MPLAYER = NULL;
}
}
}
解决方案
需要
权限。在AndroidManifest.xml中把这些:
<采用-SDK安卓的minSdkVersion =8/>
<使用许可权的android:NAME =android.permission.WRITE_EXTERNAL_STORAGE/>
<使用许可权的android:NAME =android.permission.MOUNT_UNMOUNT_FILESYSTEMS/>
我测试了它在Android模拟器2.2,所以我的minSdkVersion是8。
I have created an intent servie to start music for my app in the background.
it is wirking but my logcat is flooded with the messages:
09-14 16:46:30.117: WARN/AudioFlinger(33): write blocked for 76 msecs, 7773 delayed writes, thread 0xb3f0 and nothing else is getting Logged.
Here is my IntentService:
import android.app.IntentService;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnErrorListener;
import android.widget.Toast;
public class MusicService extends IntentService {
MediaPlayer mPlayer;
private OnErrorListener mErrorListener;
public MusicService() {
super("MusicService");
// TODO Auto-generated constructor stub
}
@Override
protected void onHandleIntent(Intent intent) {
// TODO Auto-generated method stub
// Normally we would do some work here, like download a file.
}
///////////////////////////////////////////////////////////
@Override
public int onStartCommand (Intent intent, int flags, int startId)
{
Toast.makeText(this, "service starting", Toast.LENGTH_SHORT).show();
mPlayer.setLooping(true);
mPlayer.start();
return super.onStartCommand(intent,flags,startId);
}
@Override
public void onCreate ()
{
super.onCreate();
// try{
mPlayer = MediaPlayer.create(this, R.raw.jingle);
//}catch (IllegalArgumentException e) {
//e.printStackTrace();
//}catch (IllegalStateException e ) {
//e.printStackTrace();
//}
if(mPlayer!= null)
{
mPlayer.setLooping(true); // Set looping
mPlayer.setVolume(100,100);
}
mPlayer.setOnErrorListener(new OnErrorListener() {
public boolean onError(MediaPlayer mp, int what, int extra) {
// TODO Auto-generated method stub
onPlayError();
return true;
}
});
}
private void onPlayError() {
Toast.makeText(this, "music player failed", Toast.LENGTH_SHORT).show();
if(mPlayer != null)
{
try{
mPlayer.stop();
mPlayer.release();
}finally {
mPlayer = null;
}
}
}
解决方案
Permissions are needed. Put these in AndroidManifest.xml:
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
I tested it under android emulator 2.2 so my minSdkVersion is 8.
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