MediaQuery class
An inherited widget that provides MediaQueryData to its descendants.
Use MediaQuery.of to look up the current terminal dimensions.
- Inheritance
-
- Object
- Widget
- InheritedWidget
- MediaQuery
Constructors
- MediaQuery({Key? key, required MediaQueryData data, required Widget child})
-
Creates a MediaQuery with the given
data.const
Properties
- child → Widget
-
The widget below this inherited widget in the tree.
finalinherited
- data → MediaQueryData
-
The current media query data (terminal size, padding, etc.).
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → InheritedElement -
Creates the Element for this widget.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
updateShouldNotify(
covariant MediaQuery oldWidget) → bool -
Whether descendant widgets should be notified when data changes.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
maybeOf(
BuildContext context) → MediaQueryData - Returns the MediaQueryData from the closest MediaQuery ancestor, or a default 80×24 fallback if none is found.
-
of(
BuildContext context) → MediaQueryData - Returns the MediaQueryData from the closest MediaQuery ancestor.