10秒后，Android Media Player异常超时 [英] Android media player exception timed out after 10 seconds
本文介绍了10秒后，Android Media Player异常超时的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
- 在原始文件中有一套mp3
- 阅读它们并将其设置为数组
- 获取数组大小
- 生成一个随机数，并将其作为元素传递给媒体播放器
- 让玩家运行
- mp3剪辑不到2秒，所以我等待2秒钟播放下一个剪辑，并且需要循环播放直到我停止播放
这是主意 这是代码
包com.hello.musicplayer;
package 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剪辑运行正常 当它像在25秒内运行时一样停止 有时会给出此异常
mp3 clips are working fine when this runs like in 25 seconds it stops sometimes it gives this exception
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
我需要继续播放媒体播放器
i need to keep play the media player
有什么帮助吗?
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>
推荐答案
按原样重复创建MediaPlayer实例时，需要在上一个播放器上调用release()，然后再创建下一个播放器.引用 MediaPlayer文档:
When repeatedly creating MediaPlayer instances as you are, you need to call release() on the previous player before creating the next one. Quoting the MediaPlayer docs:
还建议，一旦不再使用MediaPlayer对象，请立即调用
release()，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.资源可能包括单件资源，例如硬件加速组件，而未能调用release()可能导致MediaPlayer对象的后续实例退回到软件实现或完全失败.
It is also recommended that once a MediaPlayer object is no longer being used, call
release()immediately so that resources used by the internal player engine associated with the MediaPlayer object can be released immediately. Resource may include singleton resources such as hardware acceleration components and failure to callrelease()may cause subsequent instances of MediaPlayer objects to fallback to software implementations or fail altogether.
尽管您使用单个变量来引用每个新玩家，但旧实例仍在徘徊"一段时间，最终由于未明确发布而导致声明的Exception.
Though you're using a single variable for reference to each new player, the old instances are still "hanging around" for a time, and eventually causing the stated Exception due to not being explicitly released.
这篇关于10秒后，Android Media Player异常超时的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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