Function snapshotView

packages/core/utils/native-helper.ios.ts:301–317

(view: UIView, scale: number)

}

function snapshotView(view: UIView, scale: number): UIImage {
	if (view instanceof UIImageView) {
		return view.image;
	}
	// console.log('snapshotView view.frame:', printRect(view.frame));
	const originalOpacity = view.layer.opacity;
	view.layer.opacity = originalOpacity > 0 ? originalOpacity : 1;
	UIGraphicsBeginImageContextWithOptions(CGSizeMake(view.frame.size.width, view.frame.size.height), false, scale);
	view.layer.renderInContext(UIGraphicsGetCurrentContext());
	const image = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
	setTimeout(() => {
		// ensure set back properly on next tick
		view.layer.opacity = originalOpacity;
	});
	return image;
}

function copyLayerProperties(view: UIView, toView: UIView, customProperties?: { view?: Array<keyof UIView>; layer?: Array<keyof CALayer> }) {
	const viewPropertiesToMatch: Array<keyof UIView> = customProperties?.view || ['backgroundColor'];