FocusScope class
A specialized widget to manage focus navigation traversal.
- Inheritance
-
- Object
- Widget
- StatefulWidget
- Focus
- FocusScope
Constructors
- FocusScope({Key? key, required Widget child, FocusNode? focusNode, bool autofocus = false, bool onKeyEvent(KeyEvent event)?, void onFocusChange(bool hasFocus)?})
-
Creates a new FocusScope widget.
const
Properties
- autofocus → bool
-
Whether this focus node should automatically request focus when mounted.
finalinherited
- child → Widget
-
The child subtree that this focus widget hosts.
finalinherited
- focusNode → FocusNode?
-
The focus node that represents the focus handle.
finalinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
The optional key for this widget.
finalinherited
- onFocusChange → void Function(bool hasFocus)?
-
Callback executed when this focus node gains or loses focus.
finalinherited
- onKeyEvent → bool Function(KeyEvent event)?
-
Callback executed when a key event hits this node.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → Element -
Creates an Element to manage this widget's location in the tree.
inherited
-
createState(
) → State< Focus> -
Creates the mutable state for this widget at a given location in the tree.
override
-
getIntrinsicHeight(
int width) → int -
Computes the intrinsic height of this widget under the given
widthconstraint.inherited -
getIntrinsicWidth(
int height) → int -
Computes the intrinsic width of this widget under the given
heightconstraint.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
of(
BuildContext context) → FocusScopeNode? -
Walks up Context to obtain the closest FocusScopeNode.
override