SintAppBar class
A Sint-aware AppBar that integrates with Sint's routing stack.
Inherits AppBarChild's benefits:
- Custom height (default 50.0, matching AppTheme.appBarHeight)
- Auto-capitalize title (toggleable via capitalize)
- Consistent dark elevated background color
Sint-specific benefits:
- Back button uses
Sint.back()(updates browser URL on web) - Fallback route when no back history exists
- Auto-detects root routes to hide back button
- Supports
bottom:widget (TabBar)
Usage:
SintAppBar(title: 'Dashboard ERP')
SintAppBar(title: 'shop', actions: [...], fallbackRoute: '/home')
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- SintAppBar
- Implemented types
Constructors
-
SintAppBar({Key? key, String title = '', Widget? preTitle, Color? backgroundColor, List<
Widget> ? actions, bool? centerTitle, Widget? leading, double? titleSpacing, String fallbackRoute = '/', double elevation = 0, TextStyle? titleStyle, bool? showBackButton, PreferredSizeWidget? bottom, bool capitalize = true, double height = 50.0}) -
const
Properties
-
actions
→ List<
Widget> ? -
Action widgets on the right side of the AppBar.
final
- backgroundColor → Color?
-
Background color. If null, uses the app's elevated surface color.
Pass
Colors.transparentfor modal/sheet pages.final - bottom → PreferredSizeWidget?
-
Bottom widget (e.g., TabBar).
final
- capitalize → bool
-
Whether to auto-capitalize the first letter of the title.
Defaults to true (matching AppBarChild behavior).
final
- centerTitle → bool?
-
Whether to center the title. Defaults to null (platform default).
final
- elevation → double
-
AppBar elevation. Defaults to 0.
final
- fallbackRoute → String
-
Route to navigate to when there's no back history in the Sint stack.
Defaults to
'/'.final - hashCode → int
-
The hash code for this object.
no setterinherited
- height → double
-
Custom AppBar height. Defaults to 50.0 (matching AppTheme.appBarHeight).
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- leading → Widget?
-
Custom leading widget. If provided, overrides the Sint back button.
final
- preferredSize → Size
-
The size this widget would prefer if it were otherwise unconstrained.
no setteroverride
- preTitle → Widget?
-
Optional widget displayed before the title (e.g., an icon or avatar).
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- showBackButton → bool?
-
Whether to show the back button. If null, automatically determined
based on the current route and Sint stack.
final
- title → String
-
The title text displayed in the AppBar.
final
- titleSpacing → double?
-
Title spacing override.
final
- titleStyle → TextStyle?
-
Title text style override. If null, uses white bold text.
final
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
override
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children.
inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toDiagnosticsNode(
{String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep.
inherited
-
toString(
{DiagnosticLevel minLevel = DiagnosticLevel.info}) → String -
A string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug, int wrapWidth = 65}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited