[Dart] Efficiently detect changes in position/size of NativeView

[alexmercerind]

Right now, I just use following extension to get global coordinates of a Widget & it works great:

flutter_native_view/lib/src/widgets.dart

Lines 116 to 127 in 783dc56

	extension GlobalKeyExtension on GlobalKey {
	Rect? get rect {
	final renderObject = currentContext?.findRenderObject();
	final translation = renderObject?.getTransformTo(null).getTranslation();
	if (translation != null && renderObject?.paintBounds != null) {
	final offset = Offset(translation.x, translation.y);
	return renderObject!.paintBounds.shift(offset);
	} else {
	return null;
	}
	}
	}

But, the problem is what can be an efficient way to detect when a Widget is moved on the screen or it's size is changed.

If anyone experienced in Flutter/Dart has some idea about this, please feel free to share.

Thanks.

[abdelaziz-mahdy]

I think the first solution may help you
https://stackoverflow.com/questions/63467726/listen-to-orientation-state-in-flutter-before-after-rotation