MyViewWithTransparentArea.java 文件源码

public MyViewWithTransparentArea(Context context) {
    super(context);

    overlayDefault = BitmapFactory.decodeResource(getResources(),R.drawable.dwarf);
    overlayDefault = Bitmap.createScaledBitmap(
            overlayDefault, 800, 800, false);
    overlay = BitmapFactory.decodeResource(getResources(),R.drawable.dwarf).copy(Bitmap.Config.ARGB_8888, true);
    c2 = new Canvas(overlay);

    pTouch = new Paint(Paint.ANTI_ALIAS_FLAG);
    pTouch.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OUT));
    pTouch.setColor(Color.TRANSPARENT);
    pTouch.setMaskFilter(new BlurMaskFilter(15, BlurMaskFilter.Blur.NORMAL));


}