onTextScaleFactorChanged property

VoidCallback onTextScaleFactorChanged

A callback that is invoked whenever textScaleFactor changes value.

The framework invokes this callback in the same zone in which the callback was set.

See also:

  • WidgetsBindingObserver, for a mechanism at the widgets layer to observe when this callback is invoked.

Implementation

VoidCallback get onTextScaleFactorChanged => _onTextScaleFactorChanged;
void onTextScaleFactorChanged= (VoidCallback callback)

Implementation

set onTextScaleFactorChanged(VoidCallback callback) {
  _onTextScaleFactorChanged = callback;
  _onTextScaleFactorChangedZone = Zone.current;
}