watchEffect2<T1, T2, TObs1, TObs2> function
void
watchEffect2<T1, T2, TObs1, TObs2>(
- BuildContext context,
- void effect(
- T1,
- T2
- Object obs1,
- Object obs2,
- ContextWatcherObservableType type1,
- ContextWatcherObservableType type2, {
- Object? key,
- bool immediate = false,
- bool once = false,
Implementation
void watchEffect2<T1, T2, TObs1, TObs2>(
BuildContext context,
void Function(T1, T2) effect,
Object obs1,
Object obs2,
ContextWatcherObservableType type1,
ContextWatcherObservableType type2, {
Object? key,
bool immediate = false,
bool once = false,
}) {
final contextWatch = InheritedContextWatch.of(context);
final observable1 = contextWatch.getOrCreateObservable<TObs1>(
context,
obs1,
type1,
);
final observable2 = contextWatch.getOrCreateObservable<TObs2>(
context,
obs2,
type2,
);
observable1.watchEffect(
(arg1) {
if (shouldAbortMassEffect2(
key,
observable1,
observable2,
once: once,
immediate: immediate,
)) {
return;
}
final arg2 = observable2.subscription.callbackArgument as T2;
effect(arg1, arg2);
},
key: key,
immediate: immediate,
once: once,
);
observable2.watchEffect(
(arg2) {
if (shouldAbortMassEffect2(
key,
observable1,
observable2,
once: once,
immediate: immediate,
)) {
return;
}
final arg1 = observable1.subscription.callbackArgument as T1;
effect(arg1, arg2);
},
key: key,
immediate: immediate,
once: once,
);
}