问题描述
我尝试做简单的网上电台播放器。这里是流 http://radio-electron.ru:8000/96 这是我的code的联系地址。
I try to do simple online radio player. Here is adress of stream http://radio-electron.ru:8000/96 Here is my code.
MyActivity.java
MyActivity.java
package com.example.untitled2;
import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
import java.io.IOException;
public class MyActivity extends Activity {
MediaPlayer mediaPlayer;
Button playButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@Override
public void onStart() {
super.onStart();
}
@Override
public void onResume() {
super.onResume();
mediaPlayer = new MediaPlayer();
playButton = (Button)findViewById(R.id.button);
playButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(mediaPlayer.isPlaying())
mediaPlayer.stop();
else {
try {
mediaPlayer.setDataSource(getApplicationContext(), Uri.parse("http://radio-electron.ru:8000/96"));
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mediaPlayer, int i, int i2) {
Toast.makeText(getApplicationContext(), "ERROR " + i, Toast.LENGTH_LONG).show();
playButton.setEnabled(false);
Log.d("radio", "error " + i + " " + i2);
return false; //To change body of implemented methods use File | Settings | File Templates.
}
});
mediaPlayer.prepareAsync();
}
catch (IOException e) {
Toast.makeText(getApplicationContext(), "ERROR " + e, Toast.LENGTH_LONG).show();
Log.d("radio", "error " + e);
}
mediaPlayer.start();
}
}
});
}
}
main.xml中
main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="@+id/button"
android:layout_gravity="center"/>
</FrameLayout>
我不知道,为什么我得到 - (38,0)code和是什么意思。我用的IntelliJ IDEA,并在Android 2.3和4.2模拟器尝试此code,并得到一些问题。
I have no idea, why i get -(38, 0) code and what does it mean.I using Intellij IDEA and trying this code on Android 2.3 and 4.2 emulators and get some problem.
推荐答案
-38指 ENOSYS
错误code从的(见这样的解释http://stackoverflow.com/a/15206308/768935)
-38 refers to ENOSYS
error code from errno.h (see this explanation http://stackoverflow.com/a/15206308/768935)
您似乎尝试启动播放的preparation完成之前。使用<一个href="http://developer.android.com/reference/android/media/MediaPlayer.html#setOn$p$pparedListener%28android.media.MediaPlayer.On$p$pparedListener%29"><$c$c>setOn$p$pparedListener()方法来设置preparation监听器,并调用的start()
后,才preparation手段齐全。
You seem to try to start the playing before the preparation is complete. Use the setOnPreparedListener()
method to set a preparation listener and call the start()
method only after the preparation is complete.
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mp.start();
}
});
mediaPlayer.prepareAsync();
和删除从code中的电流 mediaPlayer.start()
调用。
And remove the current mediaPlayer.start()
invocation from the code.
这篇关于媒体播放器的错误-38,0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!