我有记忆泄露。 这里的法典

package fourguys.testing.IntentTest;

import android.app.Activity; import android.media.MediaPlayer; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.media.MediaPlayer; import android.media.AudioManager; import android.content.Context;

public class CanvasDrawingActivity extends Activity {

    private static final int FIRE = 0;
    private int initVolume = 0;
    private Handler handler;
    private MyCanvas v;
    private MediaPlayer mp;
    private AudioManager am;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        am = (AudioManager)this.getSystemService(Context.AUDIO_SERVICE);

        // this method gets the current volume setting for music
        initVolume = am.getStreamVolume(AudioManager.STREAM_MUSIC);


        am.setStreamVolume(AudioManager.STREAM_MUSIC,100,AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);

        mp = MediaPlayer.create(this, R.raw.test);

        makeHandler();
        v =new MyCanvas(this);
        new Thread(new Runnable(){
            @Override
            public void run() {
                while(true)
                handler.sendEmptyMessage(FIRE);
        }}).start();
        setContentView(v);
        mp.setLooping(true);
        mp.start();
    }
    private void makeHandler()
    {
        handler  = new Handler(){

            @Override
            public void handleMessage(Message msg) {
                switch(msg.what)
                {
                    case FIRE:
                    {
                        v.invalidate();
                        break;
                    }
                }
            }

        };
    }
    protected void onPause() {
        super.onPause();
        mp.stop();
    }
    protected void onFinish() {
        mp.stop();
    }

}

为此:

package fourguys.testing.IntentTest;

import android.app.Activity; import android.content.Intent; import android.media.MediaPlayer; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.view.WindowManager;

public class IntentTest extends Activity { /** Called when the activity is first created. */

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);

        //reciever intentReceiver = new reciever();

        // IntentFilter intentFilter = new IntentFilter("com.app.REC");

        //registerReceiver(intentReceiver, intentFilter);
        Button b = (Button)this.findViewById(R.id.endButton);
        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent i = new Intent(IntentTest.this,CanvasDrawingActivity.class);
                startActivity(i);

            }
        });
    }
    // the onPause method get called when the app is either being hidden or being closed so this the place where we would want to clean anything up like stoping the media player.
    @Override
    protected void onPause()
    {
        super.onPause();
    }
}

我拿着 app子,在离去后就获得了胜利。 它打开了手脚,使电池能够运行热。 我需要从身体上把电池 re回。 为什么会这样? 它热情地领导着支持者。 我是否应该改用Finish,或者我是否不清洗东西,我是谁失踪?