Android线程中Handle的使用讲解

public class BallHandler extends Handler{  ImageView imageview;  Bitmap bitmap;  public BallHandler(ImageView imageview,Bitmap bitmap){    super();    this.imageview=imageview;    this.bitmap=bitmap;  }  public void handleMessage(Message msg){      bitmap =(Bitmap)msg.obj;      imageview.setImageBitmap(bitmap);  }

Message msg = new Message();      msg.obj = bitmap;      handler.sendMessage(msg);