Android媒体播放器异常在10秒后超时

Question

1. 在原始文件中设置了mp3
2. 读取它们并将它们设置为数组
3. 得到数组大小
4. 生成一个随机数并将其作为元素传递给媒体播放器
5. 所以玩家跑
6. mp3剪辑不到2秒所以我等待2秒并播放下一个剪辑和一个循环,这需要运行直到我停止

这就是代码的想法

包com.hello.musicplayer;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;

import android.app.Activity;

import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;

import android.view.View;
import android.widget.SeekBar;
import android.widget.TextView;


public class AndroidMediaPlayer extends Activity {
    // two
    private MediaPlayer mediaPlayer;
    public TextView songName, duration;
    private double timeElapsed = 0, finalTime = 0;
    private int forwardTime = 2000, backwardTime = 2000;
    private Handler durationHandler = new Handler();
    //private SeekBar seekbar;
    private Field[] fields;
    private String name;
    private int resourceID;
    private List<String> songNames;
    //private List<String> songsDisplay;
    private int nameIntRandom;
    private double timeRemaining;
    private int value;
    private int countinitilaze;
    private int pauseChecker=0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);
        songNames = new ArrayList();
    //  songsDisplay =new ArrayList();

        listRaw();
        initializeViews();

        mediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {


            @Override
            public boolean onError(MediaPlayer mp, int what, int extra) {
                System.out.println("mediaPlayer error");
                initializeViews();
                return true;
            }
        });

//      seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
//          @Override
//          public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
//
//              System.out.println("progress" + (progress));
//              System.out.println("progress final - " + finalTime);
//
//
//          }
//
//          @Override
//          public void onStartTrackingTouch(SeekBar seekBar) {
//
//          }
//
//          @Override
//          public void onStopTrackingTouch(SeekBar seekBar) {
//
//          }
//      });
    }

    private void listRaw() {
        System.out.println("listRaw listRaw");
        fields = R.raw.class.getFields();
        for (int count = 0; count < fields.length; count++) {

            System.out.println("listRaw names.... " + fields[count].getName());

            try {
                //  String songsStringNames =fields[count].getName();
                //songsDisplay.add(songsStringNames);

                resourceID = fields[count].getInt(fields[count]);
                System.out.println("listRaw resourceIDresourceID " + resourceID);
                name = String.valueOf(resourceID);

                songNames.add(name);
                System.out.println("listRaw songNames.size();" +songNames.size());
                songNames.size();

            } catch (IllegalAccessException e) {
                e.printStackTrace();
                System.out.println("catch" + e);
            }
        }

    }


    public void initializeViews(){



        Random randomGenerator = new Random();
        value = randomGenerator.nextInt((songNames.size()));
        System.out.println("AndroidMediaPlayer value -" + value);
        songName = (TextView) findViewById(R.id.songName);

        System.out.println("AndroidMediaPlayer songnames array-" + songNames);

        nameIntRandom = Integer.parseInt(songNames.get(value));


        mediaPlayer = MediaPlayer.create(this, nameIntRandom);
        //finalTime = mediaPlayer.getDuration();



        //duration = (TextView) findViewById(R.id.songDuration);
        //seekbar = (SeekBar) findViewById(R.id.seekBar);
        //songName.setText(fields[value].getName());

        //seekbar.setMax((int) finalTime);
        //seekbar.setClickable(false);

        if (countinitilaze >0)
        {

            if (finalTime <2000){
                play();
            }

            else {
                playingBigClip();
                System.out.println("playing a big clip ");
            }
                    }
        countinitilaze++;
    }



    ///////
    public void play(){

if (pauseChecker == 0 ){

        System.out.println("AndroidMediaPlayer play ");
//  timeElapsed = mediaPlayer.getCurrentPosition();
//  seekbar.setProgress((int) timeElapsed);
try {
    mediaPlayer.start();

    if(!mediaPlayer.isPlaying()){
        initializeViews();

    }

}
catch (Exception e){


    initializeViews();


}


        int delay = 1000;// in ms

        Timer timer = new Timer();

        timer.schedule(new TimerTask() {
            public void run() {

            //  mediaPlayer.stop();
                initializeViews();
            }
        }, delay);




}


//      if((timeRemaining/10000) < 1000 ){
//          System.out.println("progress fully compleated ");
//          mediaPlayer.stop();
//          initializeViews();
//
//      }

    }


    ///////////////////////////////////// play mp3 song
    public void play(View view) {
        pauseChecker = 0;
        System.out.println("AndroidMediaPlayer play  onclick");


        if (finalTime <2000){
            play();
        }

        else {
            playingBigClip();
        }
        //durationHandler.postDelayed(updateSeekBarTime, 10);
    }


    public void playingBigClip(){
        System.out.println("play  playingBigClip()");

        //mediaPlayer = MediaPlayer.create(this, nameIntRandom);
        mediaPlayer.start();

        //timeElapsed = mediaPlayer.getCurrentPosition();
        //seekbar.setProgress((int) timeElapsed);



        if((timeRemaining/1000) < 1){
            System.out.println("big clip time remains ");

                initializeViews();
            }

    }

    public void pause(View view) {
pauseChecker = 1;
        System.out.println("AndroidMediaPlayer pause  onclick");
        mediaPlayer.pause();

    }


}

mp3剪辑工作正常,如果它在25秒内运行它停止有时它会给出这个例外

java.util.concurrent.TimeoutException: android.media.MediaPlayer.finalize() timed out after 10 seconds
            at android.media.MediaPlayer.native_finalize(Native Method)
            at android.media.MediaPlayer.finalize(MediaPlayer.java:3284)
            at java.lang.Daemons$FinalizerDaemon.doFinalize(Daemons.java:194)
            at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:177)
            at java.lang.Thread.run(Thread.java:818)
01-26 08:15:56.410  12699-12720/? E/DBG_POLICYDM? [com.policydm.XDMBroadcastReceiver$2(108/run)] network is unserviceable

我需要继续玩媒体播放器

任何帮助？

XML 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_gravity="center"
    android:background="#333333"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin" >

    <TextView
        android:id="@+id/songName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="songName" />

    <ImageView
        android:id="@+id/mp3Image"
        android:layout_width="match_parent"
        android:layout_height="200dp"
         android:padding="30dp"
        android:src="@drawable/music"
        android:background="#ffffff"
        android:layout_margin="30dp" />

    <TextView
        android:id="@+id/songDuration"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="songDuration" />

    <SeekBar
        android:id="@+id/seekBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="30dp"
        android:gravity="center_horizontal"
        android:orientation="horizontal" >

        <ImageButton
            android:id="@+id/media_rew"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:onClick="rewind"
            android:src="@android:drawable/ic_media_rew" />

        <ImageButton
            android:id="@+id/media_pause"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:onClick="pause"
            android:src="@android:drawable/ic_media_pause" />

        <ImageButton
            android:id="@+id/media_play"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:onClick="play"
            android:src="@android:drawable/ic_media_play" />

        <ImageButton
            android:id="@+id/media_ff"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="14dp"
            android:onClick="forward"
            android:src="@android:drawable/ic_media_ff" />
    </LinearLayout>

</LinearLayout>

Answer 1

当MediaPlayer您按原样重复创建实例时,您需要release()在创建下一个播放器之前调用前一个播放器.引用MediaPlayer文档:

还建议一旦不再使用MediaPlayer对象,release()立即调用,以便可以立即释放与MediaPlayer对象关联的内部播放器引擎使用的资源.资源可能包括单一资源,例如硬件加速组件,调用失败release()可能导致MediaPlayer对象的后续实例回退到软件实现或完全失败.

虽然您使用单个变量来引用每个新玩家,但旧实例仍然"闲置"一段时间,并最终由于未明确释放而导致声明的异常.