View游戏框架--android开发
主要通过重写
@Override
public void draw(Canvas canvas) { }
然后通过invalidate();或者postInvalidate();重绘画布,不断更新页面
坦克图片材料
部分源码:
MyView
1 package caicai.animation; 2 3 import android.content.Context; 4 import android.graphics.Bitmap; 5 import android.graphics.BitmapFactory; 6 import android.graphics.Canvas; 7 import android.graphics.Color; 8 import android.graphics.Paint; 9 import android.view.MotionEvent; 10 import android.view.View; 11 12 public class MyView extends View { 13 private Paint paint; 14 private int x = 0, y = 0;// 图片坐标 15 private Bitmap bitmap;// 图片资源 16 public MyView(Context context) { 17 super(context); 18 paint=new Paint(); 19 paint.setColor(Color.WHITE); 20 bitmap=BitmapFactory.decodeResource(getResources(), R.drawable.tanke); 21 setFocusable(true); 22 setFocusableInTouchMode(true); 23 } 24 25 @Override 26 public void draw(Canvas canvas) { 27 canvas.drawBitmap(bitmap, x, y, paint); 28 super.draw(canvas); 29 } 30 31 /** 32 // * 重写触屏事件函数 33 // */ 34 @Override 35 public boolean onTouchEvent(MotionEvent event) { 36 int x1 = (int)event.getX(); 37 int y1 = (int)event.getY(); 38 //玩家手指点击屏幕的动作 39 if (event.getAction() == MotionEvent.ACTION_DOWN) { 40 x = x1; 41 y = y1; 42 //玩家手指抬起离开屏幕的动作 43 } else if (event.getAction() == MotionEvent.ACTION_MOVE) { 44 x = x1; 45 y = y1; 46 //玩家手指在屏幕上移动的动作 47 } else if (event.getAction() == MotionEvent.ACTION_UP) { 48 x = x1; 49 y = y1; 50 } 51 //重绘画布 52 invalidate();//或者用postInvalidate();刷新画布 53 return true; 54 } 55 }
MainActivity
1 package caicai.animation; 2 3 import android.app.Activity; 4 import android.os.Bundle; 5 import android.view.Window; 6 import android.view.WindowManager; 7 8 public class MainActivity extends Activity { 9 /** Called when the activity is first created. */ 10 @Override 11 public void onCreate(Bundle savedInstanceState) { 12 super.onCreate(savedInstanceState); 13 //设置全屏 14 this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 15 requestWindowFeature(Window.FEATURE_NO_TITLE); 16 //显示自定义的SurfaceView视图 17 setContentView(new MyView(this)); 18 19 } 20 }
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posted on 2013-08-27 11:08 clarenceV1 阅读(283) 评论(0) 编辑 收藏 举报