A material design icon button.
An icon button is a picture printed on a Material widget that reacts to touches by filling with color.
Icon buttons are commonly used in the actions field, but they can be used in many other places as well.
If the onPressed callback is not specified or null, then the button will be disabled, will not react to touch.
Requires one of its ancestors to be a Material widget.
See also:
- Inheritance
- Object
- Widget
- StatelessWidget
- IconButton
Constructors
- IconButton({Key key, double size: 24.0, EdgeInsets padding: const EdgeInsets.all(8.0), FractionalOffset alignment: FractionalOffset.center, @required Widget icon, Color color, Color disabledColor, @required VoidCallback onPressed, String tooltip })
-
Creates an icon button.
const
Properties
- alignment → FractionalOffset
-
Defines how the icon is positioned within the IconButton.
read-only - color → Color
-
The color to use for the icon inside the button, if the icon is enabled. Defaults to leaving this up to the icon widget.
read-only - disabledColor → Color
-
The color to use for the icon inside the button, if the icon is disabled. Defaults to the ThemeData.disabledColor of the current Theme.
read-only - icon → Widget
-
The icon to display inside the button.
read-only - onPressed → VoidCallback
-
The callback that is called when the button is tapped or otherwise activated.
read-only - padding → EdgeInsets
-
The padding around the button's icon. The entire padded icon will react to input gestures.
read-only - size → double
-
The size of the icon inside the button.
read-only - tooltip → String
-
Text that describes the action that will occur when the button is pressed.
read-only - hashCode → int
-
Get a hash code for this object.
read-only, inherited - key → Key
-
Controls how one widget replaces another widget in the tree.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
-
debugFillDescription(
List<String> description) → void -
Add additional information to the given description for use by
toString. -
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited -
toStringShort(
) → String -
A short, textual description of this widget.
inherited