Android Media（多媒体）播放Module raw下的音乐

来源：互联网发布：电脑怎么用手机淘宝编辑：程序博客网时间：2024/05/16 01:59
代码实现：
package com.example.g160628_android_27_media;import android.content.Context;import android.media.AudioAttributes;import android.media.AudioManager;import android.media.MediaPlayer;import android.net.Uri;import android.os.Environment;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.ImageButton;import android.widget.SeekBar;import java.io.IOException;public class MainActivity extends AppCompatActivity {    private MediaPlayer mediaPlayer;    private SeekBar seekBar;    private ImageButton imageButton;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        seekBar = (SeekBar) findViewById(R.id.sb_main_SeekBar);        //监听事件        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {            @Override            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {            }            //开始滑动            @Override            public void onStartTrackingTouch(SeekBar seekBar) {            }            //结束滑动            @Override            public void onStopTrackingTouch(SeekBar seekBar) {                //滑动进度条播放                mediaPlayer.seekTo(seekBar.getProgress());            }        });    }    public void start(View view){        imageButton = (ImageButton) view;        if(mediaPlayer==null){            Log.i("test","进来了");            //获取本地音乐文件            mediaPlayer = MediaPlayer.create(this, R.raw.beyond);                          //播放音乐                          mediaPlayer.start();                          //修改图片按钮                          imageButton.setImageResource(android.R.drawable.ic_media_pause);                          //设置seeKbar的最大值   mediaPlayer.getDuration()音频的时长                          seekBar.setMax(mediaPlayer.getDuration());                          //执行线程                          new MyThread().start();        } else if(mediaPlayer.isPlaying()){//判断音频是否在播放            //音频暂停             mediaPlayer.pause();            //设置图片            imageButton.setImageResource(android.R.drawable.ic_media_play);        }else{            //释放内存            mediaPlayer.start();            imageButton.setImageResource(android.R.drawable.ic_media_pause);        }    }    class MyThread extends Thread{        @Override        public void run() {            while(seekBar.getProgress()<seekBar.getMax()){                //设置seekBar的长度                // mediaPlayer.getCurrentPosition();// 音频播放的位置                 seekBar.setProgress(mediaPlayer.getCurrentPosition());            }        }    }}
阅读全文
0 0