createAsync method

RxCommand<Null, Null> createAsync (AsyncAction action, [ Observable<bool> canExecute ])

Creates a RxCommand for an asynchronous handler function with no parameter and no return type action: 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

Implementation

static RxCommand<Null, Null> createAsync(AsyncAction action,[Observable<bool> canExecute])
{
    return new RxCommandAsync<Null,Null>((_) async {action(); return  null;},canExecute);
}