开发者

WARN/AudioFlinger(33): write blocked for 76 msecs, 7773 delayed writes, thread 0xb3f0

开发者 https://www.devze.com 2023-04-05 10:39 出处:网络
I have created an intent service to start the music for my app in the background. It is working, but my log-cat is flooded with the messages:

I have created an intent service to start the music for my app in the background.

It is working, but my log-cat is flooded with the messages:

开发者_开发知识库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;
            }
        }
    }


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.

0

精彩评论

暂无评论...
验证码 换一张
取 消