watch<T extends ReactterContext?> method
Gets the ReactterContext's instance of T
from the closest ancestor of ReactterProvider and watch all ReactterHook
or ReactterHook defined in first paramater(listenStates)
to re-render the widget tree.
final appContext = context.watch<AppContext>();
final appContextWatchHook = context.watch<AppContext>((ctx) => [ctx.stateHook]);
final appContextNullable = context.wath<AppContext?>();
If T is nullable and no matching ReactterContext is found, watch will
return null.
If T is non-nullable and the ReactterContext obtained returned null, will
throw ProviderNullException.
This method is equivalent to calling:
ReactterProvider.contextOf<T>(context, listenStates: listenStates);
Implementation
T watch<T extends ReactterContext?>([ListenStates<T>? listenStates]) {
return ReactterProvider.contextOf<T>(this, listenStates: listenStates);
}