NodeInterface<R> class
abstract
You can use this class to add loading and error states to your nodes
Signal<bool> isLoading
NullableSignal<Object> error
//A separate signal for full screen loading
Signal<bool> fullScreenLoading
//You can use the `loading` method to wrap any async operation
//so you don't have to handle the loading state yourself
Future<T> loading<T>(
Future<T> future, {
bool invokeLoading = true,
//If you want to show a full screen loading, just set this to true
bool fullScreen = false,
})
Constructors
- NodeInterface({ValueKey? key})
Properties
-
computedSignals
→ List<
BaseComputed> -
All computed signals.
no setterinherited
-
error
→ NullableSignal<
Object> -
latefinal
- fullScreenLoading → BoolSignal
-
latefinal
- hashCode → int
-
The hash code for this object.
no setterinherited
- initialized → bool
-
no setterinherited
- isClosed → bool
-
no setterinherited
- isLoading → BoolSignal
-
latefinal
- key → ValueKey?
-
finalinherited
- readable → dynamic
-
This is the readable version of the node
It is used to access the signals of the node directly by its value.
no setterinherited
- runtimeKey → Key
-
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
signals
→ List<
BaseSignal> -
All non-computed signals.
no setterinherited
Methods
-
addSignalListener(
void listener(BaseSignal signal)) → void -
inherited
-
attach(
InheritedTrinityScope scope) → bool -
Returns true if the node was previously initialized, false otherwise
inherited
-
clearError(
) → void -
findNode<
N extends NodeInterface> ({Key? key}) → N -
inherited
-
findNodeOrNull<
N extends NodeInterface> ({Key? key}) → N? -
inherited
-
isSignalRegistered(
BaseSignal signal) → bool -
We use this to improve optimization
inherited
-
loading<
T> (Future< T> future(), {bool invokeLoading = true, bool fullScreen = false}) → Future<T> -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
onDispose(
) → void -
When the NodeProvider is disposed
inherited
-
onInit(
) → void -
First point of entry for the node, the scope is already available
inherited
-
onReady(
) → void -
After the first frame, the UI context is ready
inherited
-
registerSignal<
S extends BaseSignal> (S signal) → S -
inherited
-
removeSignalListener(
void listener(BaseSignal signal)) → void -
inherited
-
toString(
) → String -
A string representation of this object.
inherited
-
when<
W extends Widget> ({required W loading(), required W error(Object), required W orElse()}) → Widget
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Methods
-
of<
N extends NodeInterface> (BuildContext context, {Key? key}) → N