Android Media（多媒体）播放Module raw下的音乐

最新推荐文章于 2025-04-07 13:20:53 发布

Mr_LDL

最新推荐文章于 2025-04-07 13:20:53 发布

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本文链接：https://blog.csdn.net/Li_Driver/article/details/75577448

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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());
            }
        }
    }

}