简单实现Android本地音乐播放器

2024-02-24 14:05:03 143

publicclassMainActivityextendsActivity{ privateEditTextet_path; privateMediaPlayermediaPlayer; privateButtonbt_play,bt_pause,bt_stop,bt_replay; @Override protectedvoidonCreate(BundlesavedInstanceState){ super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); et_path=(EditText)findViewById(R.id.et_path); bt_play=(Button)findViewById(R.id.bt_play); bt_pause=(Button)findViewById(R.id.bt_pause); bt_stop=(Button)findViewById(R.id.bt_stop); bt_replay=(Button)findViewById(R.id.bt_replay); } /** *播放 *@paramview */ publicvoidplay(Viewview){ Stringfilepath=et_path.getText().toString().trim(); Filefile=newFile(filepath); if(file.exists()){ try{ mediaPlayer=newMediaPlayer(); mediaPlayer.setDataSource(filepath);//设置播放的数据源。 mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); mediaPlayer.prepare();//准备开始播放播放的逻辑是c代码在新的线程里面执行。 mediaPlayer.start(); bt_play.setEnabled(false); mediaPlayer.setOnCompletionListener(newOnCompletionListener(){ @Override publicvoidonCompletion(MediaPlayermp){ bt_play.setEnabled(true); } }); }catch(Exceptione){ e.printStackTrace(); Toast.makeText(this,"播放失败",0).show(); } }else{ Toast.makeText(this,"文件不存在，请检查文件的路径",0).show(); } } /** *暂停 *@paramview */ publicvoidpause(Viewview){ if("继续".equals(bt_pause.getText().toString())){ mediaPlayer.start(); bt_pause.setText("暂停"); return; } if(mediaPlayer!=null&&mediaPlayer.isPlaying()){ mediaPlayer.pause(); bt_pause.setText("继续"); } } /** *停止 *@paramview */ publicvoidstop(Viewview){ if(mediaPlayer!=null&&mediaPlayer.isPlaying()){ mediaPlayer.stop(); mediaPlayer.release(); mediaPlayer=null; } bt_pause.setText("暂停"); bt_play.setEnabled(true); } /** *重播 *@paramview */ publicvoidreplay(Viewview){ if(mediaPlayer!=null&&mediaPlayer.isPlaying()){ mediaPlayer.seekTo(0); }else{ play(view); } bt_pause.setText("暂停"); } }

简单实现Android本地音乐播放器

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