音頻【實驗內(nèi)容】音頻【實驗?zāi)康摹烤帲ê唽懸灰椎膫€u”）音頻e器。p“j，文n稱是m于：jg3音頻【實驗內(nèi)容】音頻【實驗?zāi)康摹烤帲ê唽懸灰椎膫€u”）音頻e器。p“j，文n稱是m于：jg3【實驗平臺】開Android4.0境。板，【關(guān)鍵代碼】源1源 Main.java：文件 ：publicclassMainextendsActivity{privateImageButtonbtnPlay,btnPause,btnStop;privateTextViewtv;privateMediaPlayermp;publicvoidonCreate(BundlesavedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);//通 findViewById找過 到資btnPlay=(ImageButton)findViewById(R.id.btnPlay);btnPause=(ImageButton)findViewById(R.id.btnPause);btnStop=(ImageButton)findViewById(R.id.btnStop);tv=(TextView)findViewById(R.id.txtStatus);//創(chuàng) MediaPlayer對,2中 象 方法//1：//mp=MediaPlayer.create(this,R.raw.qingge);//2：mp=newMediaPlayer();try{mp.setDataSource("/mnt/sdcard/juejing.mp3");}catch(IllegalArgumentExceptione1){e1.printStackTrace();tv.setText("打開文件發(fā)生異常...");}catch(IllegalStateExceptione1){//2：mp=newMediaPlayer();try{mp.setDataSource("/mnt/sdcard/juejing.mp3");}catch(IllegalArgumentExceptione1){e1.printStackTrace();tv.setText("打開文件發(fā)生異常...");}catch(IllegalStateExceptione1){e1.printStackTrace();tv.setText("打開文件發(fā)生異常...");}catch(IOExceptione1){e1.printStackTrace();tv.setText("打開文件發(fā)生異常...");}//音樂按鈕的事件ImageButton.OnClickListener(){publicvoidonClick(Viewv){try{if(!mp.isPlaying()){mp.prepare();mp.start();}}catch(Exceptione){中...");發(fā)生異常...");e.printStackTrace();}}});//暫停的事件btnPause.setOnClickListener(newImageButton.OnClickListener(){publicvoidonClick(Viewv){try{if(mp!=null&&mp.isPlaying()){mp.pause();!");}}catch(Exceptione){e.printStackTrace();2}}});//停止的事件btnStop.setOnClickListener(newImageButton.OnClickListener(){publicvoidonClick(Viewv){try{if(mp!=null}}});//停止的事件btnStop.setOnClickListener(newImageButton.OnClickListener(){publicvoidonClick(Viewv){try{if(mp!=null&&mp.isPlaying()){mp.stop();mp.reset();...");}}catch(Exceptione){e.printStackTrace();}}});/*當pletionLister會運行的Listener*/pletionListener(new//@OverridepletionListener(){/*覆蓋文件publicvoidtry{/**/pletion(MediaPlayerarg0){*MediaPlayer的賦值關(guān)系讓資源可以為其它程序利用*//*TextView為*/}catch(Exceptione){e.printStackTrace();}}});/*MediaPlayer.OnErrorListenerListener*/mp.setOnErrorListener(newMediaPlayer.OnErrorListener(){3【實驗現(xiàn)象】4/**/【實驗現(xiàn)象】4/**/publicbooleanonError(MediaPlayerarg0,intarg1,intarg2){try{/*MediaPlayer的賦值*/mp.release();tv.setText(" 發(fā)生異常!");}catch(Exceptione){e.printStackTrace();}returnfalse;}});}}源文件：main.xml:<?xmlversion="1.0"encoding="utf-8"?><LinearLayoutxmlns:android="http://s /apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"android:id="@+id/ll1"><TextViewandroid:text="TextView"android:id="@+id/txtStatus"<LinearLayoutandroid:layout_width="fill_parent"android:gravity="center_horizontal"android:orientation="horizontal"android:id="@+id/ll2">android:id="@+id/btnPlay"android:src="@drawable/play"android:layout_width="wrap_content"android:layout_height="wrap_content"></ImageButton><ImageButtonandroid:id="@+id/btnPause"android:src="@drawable/pause"android:layout_width="wrap_content"android:layout_height="wrap_content"></ImageButton><ImageButtonandroid:id="@+id/b