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我是新来的android,我需要它为我正在处理的项目。我需要它通过点击按钮来播放声音。我遵循在线教程,但我的代码根本不播放声音,并且在MediaPlayer错误(-19,0)上出现错误。我尝试了很多我在这里看到的修复程序,但似乎无法使其工作。任何帮助?下面的代码Android MediaPlayer无法播放按钮上的声音点击
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
MediaPlayer player;
@Override
protected void onCreate(Bundle savedInstanceState) {
try {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AudioManager audioManager = (AudioManager) getSystemService(MainActivity.AUDIO_SERVICE);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 20, 0);
Button buttonHello = (Button) findViewById(R.id.button1);
buttonHello.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MediaPlayer mp = Medi aPlayer.create(MainActivity.this, R.raw.button);
mp.start();
mp.setOnCompletionListener(new OnCompletion Listener() {
public void onCompletion(MediaPlayer mp) {
mp.release();
};
});
}
});
} catch (Exception e) {
System.out.println("Error!");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
何时出现错误?在'create()'或'start'上?异常中是否有任何相关的消息/跟踪? – fiddler 2013-05-06 08:23:12
(顺便说一下,你应该在启动播放器之前设置监听器) – fiddler 2013-05-06 08:23:48
将文件放到mediaplayer上的位置? – Gunaseelan 2013-05-06 08:29:09