ArcLayout.java 文件源码

private void calculateLayout() {
    if (settings == null) {
        return;
    }
    height = getMeasuredHeight();
    width = getMeasuredWidth();
    if (width > 0 && height > 0) {

        clipPath = createClipPath();
        ViewCompat.setElevation(this, settings.getElevation());
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && !settings.isCropInside()) {
            ViewCompat.setElevation(this, settings.getElevation());
            setOutlineProvider(new ViewOutlineProvider() {
                @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
                @Override
                public void getOutline(View view, Outline outline) {
                    outline.setConvexPath(clipPath);
                }
            });
        }
    }
}