Android 听筒播放模式实现代码，android播放模式, package

Android 听筒播放模式实现代码，android播放模式, package

    package com.example.media;      import java.io.IOException;      import android.app.Activity;      import android.content.Context;      import android.media.AudioManager;      import android.media.MediaPlayer;      import android.media.MediaPlayer.OnCompletionListener;      import android.os.Bundle;      import android.view.View;      import android.view.View.OnClickListener;      import android.widget.Button;      public class AAA extends Activity {          private Button play;//播放          private Button stop;//停止          private AudioManager am;//提供访问控制音量和钤声模式的操作          private boolean isReleased = false;          private boolean isPlaying = false;          private MediaPlayer mMediaPlayer;          @Override          protected void onCreate(Bundle savedInstanceState) {              super.onCreate(savedInstanceState);              setContentView(R.layout.activity_main);              play = (Button) findViewById(R.id.main_play);              stop = (Button) findViewById(R.id.main_stop);              play.setOnClickListener(new OnClickListener() {                  @Override                  public void onClick(View v) {                      am = (AudioManager) getSystemService(Context.AUDIO_SERVICE);                      //听筒模式下设置为false                      am.setSpeakerphoneOn(false);                      //设置成听筒模式                      am.setMode(AudioManager.MODE_IN_CALL);                      //设置为通话状态                      setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);                      try {                          if (!isPlaying) {                              mMediaPlayer = MediaPlayer.create(AAA.this, R.raw.man);                              isPlaying = true;                              isReleased = false;                              mMediaPlayer.setLooping(true);                              try {                                  mMediaPlayer.prepare();                              } catch (IllegalStateException e) {                                  e.printStackTrace();                              } catch (IOException e) {                                  e.printStackTrace();                              }                              mMediaPlayer.start();                          }                      } catch (IllegalStateException e) {                          e.printStackTrace();                      }                      //播放完毕监听                      mMediaPlayer.setOnCompletionListener(new OnCompletionListener() {                                  public void onCompletion(MediaPlayer arg0) {                                      mMediaPlayer.release();                                      //设置回正常模式                                      am.setMode(AudioManager.MODE_NORMAL);                                  }                              });                  }              });              stop.setOnClickListener(new OnClickListener() {                  @Override                  public void onClick(View v) {                      if (isPlaying && !isReleased) {                          isReleased = true;                          mMediaPlayer.stop();                          mMediaPlayer.release();                          isPlaying = false;                          //停止播放设置为正常状态                          am.setMode(AudioManager.MODE_NORMAL);                      }                  }              });          }      }