didChangeMetrics method
void
didChangeMetrics()
Called when the application's dimensions change. For example, when a phone is rotated.
Implementation
void didChangeMetrics() {
/// Called when the application's dimensions change. For example,
/// when a phone is rotated.
///
/// In general, this is not overriden often as the layout system takes care of
/// automatically recomputing the application geometry when the application
/// size changes
///
/// This method exposes notifications from [Window.onMetricsChanged].
/// See sample code below. No need to call super if you override.
/// @override
/// void didChangeMetrics() {
/// setState(() { _lastSize = ui.window.physicalSize; });
/// }
}