标签:canvas void 卡牌 private 入门篇 SufaceView threadrunable getHolder public
Android studio游戏开发就是这么简单:卡牌杀系列(入门篇:SufaceView的抽象应用)
创建一个SurfaceView方便后期调用
public abstract class BaseSufaceView extends SurfaceView implements SurfaceHolder.Callback {
public boolean isAlive=false;
private Canvas canvas;
public BaseSufaceView(Context context) {
super(context);
init();
}
protected void init() {
getHolder().addCallback(this);
//设置透明背景,否则SurfaceView背景是黑的
setBackgroundTransparent();
}
private void setBackgroundTransparent() {
getHolder().setFormat(PixelFormat.TRANSLUCENT);
setZOrderOnTop(true);
}
@Override
public void surfaceCreated(@NonNull SurfaceHolder surfaceHolder) {
startT();
startDrawThread();
}
private DrawThread threadrunable;
private Thread mthread;
private void startDrawThread() {
if (threadrunable ==null){
threadrunable =new DrawThread();
}
mthread=new Thread(threadrunable);
mthread.start();
}
public void drawbaground(Canvas canvas){
canvas.drawColor(Color.WHITE);
};
public abstract void onThreadDraw(Canvas canvas) ;
public void startT() {
isAlive=true;
if (threadrunable ==null){
threadrunable =new DrawThread();
}
mthread=new Thread(threadrunable);
mthread.start();
}
@Override
public void surfaceChanged(@NonNull SurfaceHolder surfaceHolder, int i, int i1, int i2) {
}
@Override
public void surfaceDestroyed(@NonNull SurfaceHolder surfaceHolder) {
stopT();
}
public void stopT() {
isAlive=false;
}
private class DrawThread implements Runnable {
@Override
public void run() {
{
while (isAlive&&getHolder().getSurface().isValid()){
canvas = getHolder().lockCanvas();
drawbaground(canvas);//绘制背景
onThreadDraw(canvas);//绘制内容
if (canvas!=null) getHolder().unlockCanvasAndPost(canvas);
}
}
}
}
}
标签:canvas,void,卡牌,private,入门篇,SufaceView,threadrunable,getHolder,public 来源: https://blog.csdn.net/a316375/article/details/115064698
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