PageTransition<T> constructor

PageTransition<T>({ Key? key, Widget? child, ChildBuilder? childBuilder, required PageTransitionType type, Widget? childCurrent, BuildContext? ctx, bool inheritTheme = false, Curve curve = Curves.linear, Alignment? alignment, Duration? duration, Duration? reverseDuration, bool fullscreenDialog = false, bool opaque = false, PageTransitionsBuilder matchingBuilder = const CupertinoPageTransitionsBuilder(), bool? maintainStateData, RouteSettings? settings, })

Creates a PageTransition with the specified configuration.

Either child or childBuilder must be provided, but not both. When using certain transition types, additional parameters are required:

• alignment is required for PageTransitionType.scale, PageTransitionType.rotate, and PageTransitionType.size
• childCurrent is required for joined and pop transition types (e.g., PageTransitionType.rightToLeftJoined)
• ctx is required when inheritTheme is true

Implementation

PageTransition({
  Key? key,
  this.child,
  this.childBuilder,
  required this.type,
  this.childCurrent,
  this.ctx,
  this.inheritTheme = false,
  this.curve = Curves.linear,
  this.alignment,
  this.duration,
  this.reverseDuration,
  this.fullscreenDialog = false,
  this.opaque = false,
  this.matchingBuilder = const CupertinoPageTransitionsBuilder(),
  this.maintainStateData,
  super.settings,
}) : assert(
       child != null || childBuilder != null,
       'Either child or childBuilder must be provided',
     ),
     assert(
       !(child != null && childBuilder != null),
       'Cannot provide both child and childBuilder',
     ),
     assert(
       inheritTheme ? ctx != null : true,
       "'ctx' cannot be null when 'inheritTheme' is true, set ctx: context",
     ),
     super(
       pageBuilder: (context, animation, secondaryAnimation) {
         return childBuilder?.call(context) ?? child!;
       },
       maintainState: maintainStateData ?? true,
       opaque: opaque,
       fullscreenDialog: fullscreenDialog,
     ) {
  this.reverseDuration = reverseDuration ?? duration;
  if (kIsWeb) {
    isIos = false;
    return;
  }
  isIos = Platform.isIOS;
}