如何使用ontouchlistener识别x和y坐标是否为矩形？

Question

public void hatdraw(Canvas canvas,float x,float y) {
     mBitmaps = BitmapFactory.decodeResource(this.getResources(),
            R.drawable.hat);
     srcRect=new Rect(0,0,60,60);
     xrect=(int)x;
     yrect=(int)y;
    Log.d("hatdraw","xrect,yrect"+xrect    +yrect);
    desRect=new Rect(xrect,yrect, xrect+ (srcRect.right - srcRect.left),
            yrect + (srcRect.bottom -srcRect.top));
    canvas.drawBitmap(mBitmaps,srcRect,desRect, null);


}

Answer 1

我不知道发布的代码与此问题的标题有什么关系，但请查看Rect.contains(int x, int y)（或RectF中的等效方法）进行该测试。

Answer 2

触摸位图...

if (x >= xOfYourBitmap && x < (xOfYourBitmap + yourBitmap.getWidth()) 
    && y >= yOfYourBitmap && y < (yOfYourBitmap + yourBitmap.getHeight()))
{
    // if this is true, you've started your click inside your bitmap
}