【Android基础入门〖7〗】SurfaceView坦克大战之世界地图

本文主要是介绍【Android基础入门〖7〗】SurfaceView坦克大战之世界地图，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

目录(?)[+]

1 自定义 SurfaceView

WarView.java (世界战场)

  package com.mytank;  
 import java.util.Vector;  
 import android.content.Context;  
 import android.graphics.Canvas;  
 import android.graphics.Color;  
 import android.graphics.Paint;  
 import android.graphics.Paint.Style;  
 import android.util.AttributeSet;  
 import android.view.MotionEvent;  
 import android.view.SurfaceHolder;  
 import android.view.SurfaceView;  
 public class WarView extends SurfaceView implements SurfaceHolder.Callback {  
     SurfaceHolder mholder;  
     boolean run_flag;  
     Canvas canvas;  
     DrawThread thread;  
       
     Vector<Wall>walllist=new Vector<Wall>();  
       
     int row;//行  
     int col;//列  
     int warmap[][];  
       
     float x=10,y=10;  
       
     public WarView(Context context, AttributeSet attrs) {  
         super(context, attrs);  
         mholder=this.getHolder();  
           
         if(mholder!=null)  
             mholder.addCallback(this);  
     }  
       
     //初始化地图  
     public void initmap()  
     {  
         //0 空， 1 墙  
         for(int i=0;i<col;i++)  
         {  
             warmap[0][i]=1;  
             warmap[1][i]=1;  
             Wall wall=new Wall(0,i);  
             walllist.add(wall);  
             wall=new Wall(1,i);  
             walllist.add(wall);  
         }  
         for(int i=0;i<10;i++)  
         {  
             warmap[i][10]=1;  
             warmap[i][11]=1;  
             Wall wall=new Wall(i,10);  
             walllist.add(wall);  
             wall=new Wall(i,11);  
             walllist.add(wall);  
         }  
     }  
     @Override  
     public void surfaceCreated(SurfaceHolder holder) {  
         run_flag=true;  
         row=this.getHeight()/Common.CELL_LENGTH;  
         col=this.getWidth()/Common.CELL_LENGTH;  
         warmap=new int[row][col];  
         thread=new DrawThread();  
         initmap();  
         thread.start();  
     }  
       
     @Override  
     public boolean onTouchEvent(MotionEvent event) {  
         // TODO 自动生成的方法存根  
         x=event.getX();  
         y=event.getY();  
           
           
         /*  备注:  一定要将return super.onTouchEvent(event)修改为return true 
          *  原因：  
          *        1: 父类的onTouchEvent(event)方法没有做任何处理，并且返回了false。; 
          *        2: 一旦返回false，将不再收到 MotionEvent.ACTION_MOVE 及 MotionEvent.ACTION_UP 事件; 
          */  
         return true;  
     }  
    
     //自定义 界面绘制 线程  
     class DrawThread extends Thread  
     {  
         @Override  
         public void run() {  
               
             //画刷  
             Paint paint=new Paint();  
             paint.setStyle(Style.FILL);  
             paint.setColor(Color.rgb(255, 0, 0));    //红绿蓝  
               
             Paint bkpaint=new Paint();  
             bkpaint.setStyle(Style.FILL);            //设置填充方式  
             bkpaint.setColor(Color.rgb(2,17,17));    //红绿蓝  
               
             while(run_flag)  
             {  
                 //锁定画布  
                 canvas=mholder.lockCanvas();  
                 if (canvas == null)  
                     continue;  
                   
                 //绘制背景  
                 canvas.drawRect(0, 0, Common.CELL_LENGTH*col, Common.CELL_LENGTH*row, bkpaint);  
                   
                 //绘制手势跟踪  
                 canvas.drawCircle(x, y, 15, paint);  
                   
                 //绘制墙壁  
                 for(int i=0;i<walllist.size();i++)  
                     walllist.get(i).Draw(canvas);  
                   
                 //取消锁定  
                 mholder.unlockCanvasAndPost(canvas);  
             }  
         }  
     }  
       
     @Override  
     public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {  
     }  
     @Override  
     public void surfaceDestroyed(SurfaceHolder holder) {  
         run_flag=false;        //关闭界面绘制线程  
     }  
 }  
 

2 在布局中使用自定义的 WarView

main_layout.xml

  <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"  
     android:layout_width="match_parent"  
     android:layout_height="match_parent">  
     <com.mytank.WarView  
         android:layout_width="match_parent"  
         android:layout_height="match_parent"/>  
 </FrameLayout>  
 

3 封装的墙块类

Wall.java

  package com.mytank;  
 import android.graphics.Canvas;  
 import android.graphics.Color;  
 import android.graphics.Paint;  
 import android.graphics.Rect;  
 import android.graphics.Paint.Style;  
 /** 
  * @author michael.mao 
  * @description 封装的 墙块类，包含自绘制方法 
  */  
 public class Wall {  
       
     public int mrow;    //该墙壁所在行  
     public int mcol;  
     Paint inPaint;        //墙壁内边框画刷  
     Paint outPaint;  
     Rect inRect;  
     Rect outRect;  
       
     public Wall(int row, int col)  
     {  
         this.mrow=row;  
         this.mcol=col;  
           
         inPaint=new Paint();  
         inPaint=new Paint();  
         inPaint.setStyle(Style.FILL);  
         inPaint .setColor(Color.rgb(86, 53, 35));//红绿蓝  
           
         outPaint=new Paint();  
         outPaint=new Paint();  
         outPaint.setStyle(Style.STROKE);  
         outPaint.setColor(Color.rgb(98, 98, 98));  
           
         inRect=new Rect( mcol*Common.CELL_LENGTH+1,mrow*Common.CELL_LENGTH+1,  
                        ( mcol+1)*Common.CELL_LENGTH-1,(mrow+1)*Common.CELL_LENGTH-1);  
         outRect=new Rect( mcol*Common.CELL_LENGTH,mrow*Common.CELL_LENGTH,  
                         ( mcol+1)*Common.CELL_LENGTH,(mrow+1)*Common.CELL_LENGTH);  
     }  
       
     public void Draw(Canvas canvas)  
     {  
         canvas.drawRect(inRect,inPaint);  
         canvas.drawRect(outRect,outPaint);  
     }  
 }  
 

4 常量值

Common.java

  package com.mytank;  
 public class Common {  
     public static int CELL_LENGTH=10;    //块宽    战场被分成 M行 N 列, CELL_LENGTH==行高==列宽  
 }  
 

5 主类

MainActivity.java

  package com.mytank;  
 import android.os.Bundle;  
 import android.app.Activity;  
 public class MainActivity extends Activity {  
     @Override  
     protected void onCreate(Bundle savedInstanceState) {  
         super.onCreate(savedInstanceState);  
         setContentView(R.layout.main_layout);  
     }  
 }  
 