didChangeDependencies method

@protected @override @mustCallSuper void didChangeDependencies()

This method is also called immediately after initState. Otherwise called only if this State object's Widget is a dependency of InheritedWidget. When a InheritedWidget's build() funciton is called it's dependencies' build() function are also called but not before their didChangeDependencies() function. Subclasses rarely use this method.

Implementation

@protected
@override
@mustCallSuper
void didChangeDependencies() {
  // Important to 'markNeedsBuild()' first
  super.didChangeDependencies();

  /// No 'setState()' functions are allowed to fully function at this point.
  _rebuildAllowed = false;
  for (final listener in _beforeList) {
    listener.didChangeDependencies();
  }
  for (final con in _controllerList) {
    con.didChangeDependencies();
  }
  for (final listener in _afterList) {
    listener.didChangeDependencies();
  }
  super.didChangeDependencies();
  _rebuildAllowed = true;
  if (_rebuildRequested && !_firstBuild) {
    _rebuildRequested = false;

    /// Perform a 'rebuild' if requested.
    refresh();
  }

  /// Not the first build now.
  _firstBuild = false;
}