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  • 使用MediaPlayer播放、暂停、停止音乐

    package com.pingyijinren.test;
    
    import android.media.MediaPlayer;
    import android.os.Environment;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.Toast;
    
    import java.io.File;
    import java.io.IOException;
    
    
    public class MainActivity extends AppCompatActivity{
        private Button play;
        private Button pause;
        private Button reset;
        private MediaPlayer mediaPlayer;
        private File file;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
    
            play=(Button)findViewById(R.id.play);
            pause=(Button)findViewById(R.id.pause);
            reset=(Button)findViewById(R.id.reset);
            mediaPlayer=new MediaPlayer();
    
            try{
                file=new File(Environment.getExternalStorageDirectory()+"/netease/cloudmusic/Music/Apnea - Tongue.mp3");
                mediaPlayer.setDataSource(file.getPath());
                mediaPlayer.prepare();
            }
            catch(IOException e){
                Toast.makeText(this,"音乐不存在!",Toast.LENGTH_SHORT).show();
            }
    
            play.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(!mediaPlayer.isPlaying()){
                        mediaPlayer.start();
                    }
                }
            });
    
            pause.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(mediaPlayer.isPlaying()){
                        mediaPlayer.pause();
                    }
                }
            });
    
            reset.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if(mediaPlayer.isPlaying()){
                        mediaPlayer.reset();
    
                        try{
                            mediaPlayer.setDataSource(file.getPath());
                            mediaPlayer.prepare();
                        }
                        catch(IOException e){}
                    }
                }
            });
        }
    
        @Override
        public void onDestroy(){
            super.onDestroy();
    
            if(mediaPlayer!=null){
                mediaPlayer.stop();
                mediaPlayer.release();
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/zqxLonely/p/5504426.html
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