ifTrue method

Widget ifTrue(
  1. bool value,
  2. Widget trueWidget, [
  3. Duration? duration
])

如果value为true, 则展示trueWidget,否则展示为本身this

Implementation

Widget ifTrue(bool value, Widget trueWidget, [Duration? duration]) {
  return AnimatedSwitcher(duration: duration ?? const Duration(milliseconds: 300), child: value ? trueWidget : this);
}