onSystemFontFamilyChanged property

VoidCallback? onSystemFontFamilyChanged

A callback that is invoked whenever systemFontFamily changes value.

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

See also:

Implementation

VoidCallback? get onSystemFontFamilyChanged => _onSystemFontFamilyChanged;
void onSystemFontFamilyChanged=(VoidCallback? callback)

Implementation

set onSystemFontFamilyChanged(VoidCallback? callback) {
  _onSystemFontFamilyChanged = callback;
  _onSystemFontFamilyChangedZone = Zone.current;
}