android - 停止在状态 1 中调用

Question

我无法解决这个媒体播放器错误，上面写着“在状态 1 中停止调用”。我的媒体播放器实际上延迟了几秒钟，然后再继续播放下一个音乐。谁能帮助我。

Answer 1

这可能会帮助你...

package com.commonsware.android.audio;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.SharedPreferences;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;

public class AudioDemo extends Activity
  implements MediaPlayer.OnCompletionListener {

  private ImageButton play;
  private ImageButton pause;
  private ImageButton stop;
  private MediaPlayer mp;

  @Override
  public void onCreate(Bundle icicle) {
    super.onCreate(icicle);
    setContentView(R.layout.main);

    play=(ImageButton)findViewById(R.id.play);
    pause=(ImageButton)findViewById(R.id.pause);
    stop=(ImageButton)findViewById(R.id.stop);

    play.setOnClickListener(new View.OnClickListener() {
      public void onClick(View view) {
        play();
      }
    });

    pause.setOnClickListener(new View.OnClickListener() {
      public void onClick(View view) {
        pause();
      }
    });

    stop.setOnClickListener(new View.OnClickListener() {
      public void onClick(View view) {
        stop();
      }
    });

    setup();
  }

  @Override
  public void onDestroy() {
    super.onDestroy();

    if (stop.isEnabled()) {
      stop();
    }
  }

  public void onCompletion(MediaPlayer mp) {
    stop();
  }

  private void play() {
    mp.start();

    play.setEnabled(false);
    pause.setEnabled(true);
    stop.setEnabled(true);
  }

  private void stop() {
    mp.stop();
    pause.setEnabled(false);
    stop.setEnabled(false);

    try {
      mp.prepare();
      mp.seekTo(0);
      play.setEnabled(true);
    }
    catch (Throwable t) {
      goBlooey(t);
    }
  }

  private void pause() {
    mp.pause();

    play.setEnabled(true);
    pause.setEnabled(false);
    stop.setEnabled(true);
  }

  private void loadClip() {
    try {
      mp=MediaPlayer.create(this, R.raw.clip);
      mp.setOnCompletionListener(this);
    }
    catch (Throwable t) {
      goBlooey(t);
    }
  }

  private void setup() {
    loadClip();
    play.setEnabled(true);
    pause.setEnabled(false);
    stop.setEnabled(false);
  }

  private void goBlooey(Throwable t) {
    AlertDialog.Builder builder=new AlertDialog.Builder(this);

    builder
      .setTitle("Exception!")
      .setMessage(t.toString())
      .setPositiveButton("OK", null)
      .show();
  }
}