createSync2<TResult> method
Creates a RxCommand for a synchronous handler function with no parameter that returns a value
func
: handler function
canExecute
: observable that can bve used to enable/diable the command based on some other state change
if omitted the command can be executed always except it's already executing
isExecuting will issue a bool
value on each state change. Even if you
subscribe to a newly created command it will issue false
emitLastResult
will include the value of the last successful execution in all CommandResult events unless there is no new result.
For the Observable<CommandResult>
that RxCommand publishes in results this normally doesn't make sense
if you want to get an initial Result with data==null, error==null, isExceuting==false
pass
emitInitialCommandResult=true
.
By default the results Observable and the RxCommand itself behave like a PublishSubject. If you want that it acts like
a BehaviourSubject, meaning every new listener gets the last received value, you can set emitsLastValueToNewSubscriptions = true
.
initialLastResult
sets the value of the lastResult property before the first item was received. This is helpful if you use
lastResult as initialData
of a StreamBuilder
Implementation
static RxCommand<void, TResult> createSync2<TResult>(Func<TResult> func,
{Observable<bool> canExecute,
bool emitInitialCommandResult = false,
bool emitLastResult = false,
bool emitsLastValueToNewSubscriptions = false,
TResult initialLastResult}) {
return new RxCommandSync<void, TResult>(
(_) => func(), canExecute, emitInitialCommandResult, emitLastResult, emitsLastValueToNewSubscriptions,initialLastResult);
}