Establishes a subtree in which media queries resolve to the given data.

For example, to learn the size of the current media (e.g., the window containing your app), you can read the MediaQueryData.size property from the MediaQueryData returned by MediaQuery.of: MediaQuery.of(context).size.

Querying the current media using MediaQuery.of will cause your widget to rebuild automatically whenever the MediaQueryData changes (e.g., if the user rotates their device).

Inheritance

Static Methods

of(BuildContext context) MediaQueryData

The data from the closest instance of this class that encloses the given context.

Constructors

MediaQuery({Key key, @required MediaQueryData data, @required Widget child })

Creates a widget that provides MediaQueryData to its descendants.

Properties

data MediaQueryData

Contains information about the current media.

final
child Widget

The widget below this widget in the tree.

final, inherited
hashCode int

Get a hash code for this object.

read-only, inherited
key Key

Controls how one widget replaces another widget in the tree.

final, inherited
runtimeType Type

A representation of the runtime type of the object.

read-only, inherited

Operators

operator ==(other) bool

The equality operator.

inherited

Methods

debugFillDescription(List<String> description) → void

Add additional information to the given description for use by toString.

updateShouldNotify(MediaQuery old) bool

Whether the framework should notify widgets that inherit from this widget.

createElement() InheritedElement

Inflates this configuration to a concrete instance.

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