Breakpoint class abstract
An interface to define the conditions that distinguish between types of screens.
Adaptive apps usually display differently depending on the screen type: a
compact layout for smaller screens, or a relaxed layout for larger screens.
Override this class by defining isActive to fetch the screen property
(usually MediaQuery.of) and return true if the condition is met.
Breakpoints do not need to be exclusive because they are tested in order with the last Breakpoint active taking priority.
If the condition is only based on the screen width and/or the device type, use WidthPlatformBreakpoint to define the Breakpoint.
See also:
- SlotLayout.config, which uses breakpoints to dictate the layout of the screen.
- Implementers
Constructors
- Breakpoint()
-
Returns a const Breakpoint.
const
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
isActive(
BuildContext context) → bool - A method that returns true based on conditions related to the context of the screen such as MediaQuery.sizeOf(context).width.
-
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