AppBarData class Null safety

This is a data class for the appBar that is defined in the Pueprint widget. To use, descendant PuePage widgets of the Pueprint parent define the appBarData that should be shown on the page. Then, the PuePage calls the setState method in this class which changes the state. Finally the parent Pueprint is notified of this state and gets rebuilt with the new data via the appBarBuilder parameter.



AppBarData({PreferredSizeWidget? appBarOverride, dynamic onTapLeading()?, IconData? icon, Widget? title, List<Widget>? actions})


actions List<Widget>?
Set the actions of the Pueprint appBar
read / write
appBarOverride PreferredSizeWidget?
Specifying this parameter will override the whole appBar widget that is located in the Pueprint. [...]
read / write
hashCode int
The hash code for this object. [...]
read-only, inherited
hasListeners bool
Whether any listeners are currently registered. [...]
@protected, read-only, inherited
icon IconData?
Set the icon of the Pueprint appBar
read / write
onTapLeading ↔ (dynamic Function?()?)
The following widgets change the parameters of the appBar that is located in the Pueprint This is the leading onTap parameter in the appBar that is defined in the Pueprint
read / write
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
title Widget?
Set the title of the Pueprint appBar.
read / write


addListener(VoidCallback listener) → void
Register a closure to be called when the object changes. [...]
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener and removeListener will throw after the object is disposed). [...]
@mustCallSuper, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
notifyListeners() → void
Call all the registered listeners. [...]
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes. [...]
setState(AppBarData state) → void
Sets the AppBarData state so that the Pueprint can render and achieve the desired behaviour in the appBar
toString() String
A string representation of this object. [...]


operator ==(Object other) bool
The equality operator. [...]