剪切动画案例
材料图片:
代码:
package sdsdf.u; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.view.KeyEvent; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.SurfaceHolder.Callback; public class MySurfaceView extends SurfaceView implements Callback, Runnable { private SurfaceHolder sfh; private Paint paint; private Thread th; private boolean flag; private Canvas canvas; //声明位图 private Bitmap bmpClipBmp; //声明当前帧 private int cureentFrame; /** * SurfaceView初始化函数 */ public MySurfaceView(Context context) { super(context); sfh = this.getHolder(); sfh.addCallback(this); paint = new Paint(); paint.setColor(Color.WHITE); paint.setAntiAlias(true); setFocusable(true); } /** * SurfaceView视图创建,响应此函数 */ @Override public void surfaceCreated(SurfaceHolder holder) { bmpClipBmp = BitmapFactory.decodeResource(this.getResources(), R.drawable.loading2); flag = true; //实例线程 th = new Thread(this); //启动线程 th.start(); } /** * 游戏绘图 */ public void myDraw() { try { canvas = sfh.lockCanvas(); if (canvas != null) { canvas.drawColor(Color.WHITE); canvas.save(); //设置画布可视区域(大小是每帧的大小) canvas.clipRect(10, 10, bmpClipBmp.getWidth() / 10+10, bmpClipBmp.getHeight()+10); //绘制位图 canvas.drawBitmap(bmpClipBmp, -cureentFrame * bmpClipBmp.getWidth() / 10+9, 10, paint); canvas.restore(); } } catch (Exception e) { // TODO: handle exception } finally { if (canvas != null) sfh.unlockCanvasAndPost(canvas); } } /** * 触屏事件监听 */ @Override public boolean onTouchEvent(MotionEvent event) { return true; } /** * 按键事件监听 */ @Override public boolean onKeyDown(int keyCode, KeyEvent event) { return super.onKeyDown(keyCode, event); } /** * 游戏逻辑 */ private void logic() { cureentFrame++; if(cureentFrame>=10){ cureentFrame=0; } } @Override public void run() { while (flag) { long start = System.currentTimeMillis(); myDraw(); logic(); long end = System.currentTimeMillis(); try { if (end - start < 100) { Thread.sleep(100 - (end - start)); } } catch (InterruptedException e) { e.printStackTrace(); } } } /** * SurfaceView视图状态发生改变,响应此函数 */ @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } /** * SurfaceView视图消亡时,响应此函数 */ @Override public void surfaceDestroyed(SurfaceHolder holder) { flag = false; } }
引用方式:直接添加到视图中就行 LinearLayout mainlayout= (LinearLayout) findViewById(R.id.mainLayout); mainlayout.addView(new MySurfaceView(this));
效果:
posted on 2014-03-04 14:54 clarenceV1 阅读(243) 评论(0) 编辑 收藏 举报