HeadPhoneActivity.java

package com.zzx.factorytest;

import android.content.Context;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.Toast;

public class HeadPhoneActivity extends TestItemBaseActivity {

    private MediaPlayer mMediaPlayer;
    private AudioManager audioManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.headphone_layout);

        try {
            audioManager = (AudioManager) this
                    .getSystemService(Context.AUDIO_SERVICE);
            audioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
            mMediaPlayer = MediaPlayer.create(this, R.raw.walle);
            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
            mMediaPlayer.setLooping(true);
            mMediaPlayer.stop();
            mMediaPlayer.prepare();
            /* 开始播放 */
            mMediaPlayer.start();
        } catch (Exception e) {

            e.printStackTrace();
        }
        super.onCreate(savedInstanceState);

    }

    @Override
    protected void onStop() {
        audioManager.setMode(AudioManager.MODE_NORMAL);// 把模式调成听筒放音模式
        mMediaPlayer.stop();
        super.onStop();
    }

    public void volumn2Max(View view) {
        AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
        int max = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
        audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, max, 0);
        Toast.makeText(this, "成功", Toast.LENGTH_SHORT).show();
    }

}