Nav class

Navigation widget Nav...

Nav(
  trailingMenu: [
    NavMenuItem(
      title: 'home',
      builder: (context) => NavDialog(
        child: Container(
          alignment: Alignment.center,
          padding: EdgeInsets.all(32.0),
          width: 600.0,
          child: Text('Home page'),
        ),
      ),
      icon: (context) => Icon(Icons.home)
    ),
    NavMenuItem(
      title: 'settings',
      builder: (context) => NavDialog(
        child: Container(
          alignment: Alignment.center,
          padding: EdgeInsets.all(32.0),
          width: 600.0,
          child: Text('Settings page'),
        ),
      ),
      icon: (context) => Icon(Icons.settings),
    ),
  ],
  items: [
    NavItem(
      builder: (context, _) => Center(child: Text('page1')),
      title: 'page1',
      icon: Icons.today,
    ),
    NavItem(
      builder: (context, _) => Center(child: Text('page2')),
      title: 'page2',
      icon: Icons.stars,
    ),
    NavItem(
      builder: (context, _) => Center(child: Text('page3')),
      title: 'page3',
      icon: Icons.share,
    ),
  ],
)

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• Nav

Constructors

Nav({Key? key, required List<NavItem> items, Axis navAxis = Axis.vertical, List<NavMenuItem> trailingMenu = const [], VoidCallback? onPressBackButton, bool? isBackButtonEnabled, bool visible = true, NavController? controller})

Creates a navigation bar.

const

Properties

controller → NavController?

Controls selected index.

final

hashCode → int

The hash code for this object.

no setter, inherited

isBackButtonEnabled → bool?

If the back button should respond to user input.

final

items → List<NavItem>

The items with builder and route names for transition among pages.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

navAxis → Axis

The axis of the nav bar.

final

onPressBackButton → VoidCallback?

Callback for the back button.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

trailingMenu → List<NavMenuItem>

Menu before the navigation items.

final

visible → bool

If the nav bar should be visible.

final

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<Nav>

Creates the mutable state for this widget at a given location in the tree.

override

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

Static Methods

of(BuildContext context) → NavContext?