SurfaceView如何结合Android UI

SurfaceView提供的是直接访问画布进行绘图的机制,在里面创建Android UI是行不通的,不过游戏中经常会用到Andoird UI,这个就需要两者能够很好地结合使用.

先需要说明的一点,SurfaceView,ListView以及UI统统都继承了View,要结合它们只能在上层进行操作,具体的说不太清楚,我理解的也不是很透彻,贴下代码吧,无代码无真相:

 

package com.ray.bubble;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.RectF;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.TextView;

public class BubbleExplosion extends Activity {
 
 private FrameLayout frame;
 private MyView myView;
 private TextView text;
 
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
       
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN ,
                      WindowManager.LayoutParams. FLAG_FULLSCREEN);
       
        frame = new FrameLayout(this);
       
        text = new TextView(this);
        text.setTextSize(20);
        text.setText("lovehui");
        text.setHeight(30);
        text.setWidth(100);
       
     frame.addView(myView);
     frame.addView(text);
    
        setContentView(frame);
    }
   
    class MyView extends SurfaceView implements SurfaceHolder.Callback{

     SurfaceHolder holder;
     
     public MyView(Context context) {
      super(context);
      holder = this.getHolder();//获取holder
      holder.addCallback(this);
     }

     public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

     }

     public void surfaceCreated(SurfaceHolder holder) {
      new Thread(new MyThread()).start();
     }

     public void surfaceDestroyed(SurfaceHolder holder) {

     }

     //内部类的内部类
     class MyThread implements Runnable{

      public void run() {
       Canvas canvas = holder.lockCanvas(null);//获取画布
       Paint mPaint = new Paint();
       mPaint.setColor(Color.BLUE);

       canvas.drawRect(new RectF(40,60,80,80), mPaint);
       holder.unlockCanvasAndPost(canvas);//解锁画布，提交画好的图像

      }
     }
    }
 
}

评论

1 楼 wxw404 2010-09-18  

家这么一句吧！myView=new MyView(this);