自我LV1

這是TQC的303題，

程式碼為自行撰寫，

僅供參考。

 

練習用mMediaPlayer，並處理相關事件

MediaPlayer.OnCompletionListener()

MediaPlayer.OnErrorListener()

 

 

 

package COM.TQC.GDD03;

import android.app.Activity; 
import android.media.MediaPlayer; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ImageButton;
import android.widget.TextView; 

public class GDD03 extends Activity {
	  
	  private ImageButton mButtonPlay, mButtonPause, mButtonStop;
	  private TextView mTextView; 
	  private MediaPlayer mMediaPlayer;
	  private boolean bIsPaused = false; 
	  
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        /*透過findViewById建構子建立TextView與ImageView物件*/
        mMediaPlayer = new MediaPlayer();  
        /* 將音樂以Import的方式儲存在res/raw/always.mp3 */ 
        mMediaPlayer.create(this, R.raw.always);
       
        findview();
        setlistener(); 
         
         

    
        
      } 

    @Override 
    /*覆寫主程式暫停狀態事件*/
    protected void onPause() 
    { 
      // TODO Auto-generated method stub 
      try 
      { 
      	
      } 
      catch (Exception e) 
      { 
        mTextView.setText(e.toString()); 
        e.printStackTrace(); 
      } 
      super.onPause(); 
    } 
      
      public void findview()
      {
    	  mButtonPlay=(ImageButton)findViewById(R.id.imageButton1);
          mButtonPause=(ImageButton)findViewById(R.id.imageButton2);
          mButtonStop=(ImageButton)findViewById(R.id.imageButton3);
          mTextView=(TextView)findViewById(R.id.textView1);
      }
      
      public void setlistener()
      {
    	  /* 執行播放音樂的按鈕 */ 
          mButtonPlay.setOnClickListener(new ImageButton.OnClickListener() 
          {             
            /*覆寫OnClick事件*/
            public void onClick(View v) 
            { 
              // TODO Auto-generated method stub         
              try 
              {  
              	mMediaPlayer.start();
              	mTextView.setText(R.string.str_start);
              } 
              catch (Exception e) 
              { 
                // TODO Auto-generated catch block 
                mTextView.setText(e.toString()); 
                e.printStackTrace(); 
              } 
            } 
          }); 
          
          /* 停止播放 */ 
          mButtonStop.setOnClickListener(new ImageButton.OnClickListener() 
          { 
           // @Override
            public void onClick(View arg0) 
            { 
              // TODO Auto-generated method stub 
              try 
              { 
                if (mMediaPlayer != null) 
                { 
              	mMediaPlayer.stop();
                	mTextView.setText(R.string.str_close);
              	  
                } 
                  
              } 
              catch (Exception e) 
              { 
                // TODO Auto-generated catch block 
                mTextView.setText(e.toString()); 
                e.printStackTrace(); 
              } 
            } 
          }); 
          
          /* 暫停播放 */ 
          mButtonPause.setOnClickListener(new ImageButton.OnClickListener() 
          { 
            //@Override
            public void onClick(View arg0) 
            { 
              // TODO Auto-generated method stub 
              try 
              {               
              	mMediaPlayer.pause();
              	mTextView.setText(R.string.str_pause);
              	
              } 
              catch (Exception e) 
              { 
                // TODO Auto-generated catch block 
                mTextView.setText(e.toString()); 
                e.printStackTrace(); 
              } 
            } 
          }); 
           
          
          
          mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() 
          { 

            public void onCompletion(MediaPlayer arg0) 
            { 
              try 
              { 
            	mMediaPlayer.release();
              	mTextView.setText("release");
              	
              } 
              catch (Exception e) 
              { 
                mTextView.setText(e.toString()); 
                e.printStackTrace(); 
              } 
            } 
          }); 
           
          
          mMediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() 
          { 

            public boolean onError(MediaPlayer arg0, int arg1, int arg2) 
            { 
              // TODO Auto-generated method stub 
              try 
              { 
              	
              } 
              catch (Exception e) 
              { 
                mTextView.setText(e.toString()); 
                e.printStackTrace(); 
              } 
              return false; 
            } 
          }); 
          
      }
    } 

 

 

自我LV~