ZoomProvider class Null safety
A provider which manages the zoom scale of messages in the preview.
- Inheritance
- Object
- ChangeNotifier
- ZoomProvider
Constructors
Properties
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- hasListeners → bool
-
Whether any listeners are currently registered. [...]
@protected, read-only, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
- zoom → double
-
Returns the current
_zoom.read-only
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes. [...]
inherited
-
dispose(
) → void -
Discards any resources used by the object. After this is called, the
object is not in a usable state and should be discarded (calls to
addListener and removeListener will throw after the object is
disposed). [...]
@mustCallSuper, inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
notifyListeners(
) → void -
Call all the registered listeners. [...]
@protected, @visibleForTesting, inherited
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes. [...]
inherited
-
toString(
) → String -
A string representation of this object. [...]
inherited
-
zoomIn(
) → void -
Increases the current
_zoomby zoomAmount. -
zoomOut(
) → void -
Decreases the current
_zoomby zoomAmount.
Operators
-
operator ==(
Object other) → bool -
The equality operator. [...]
inherited