createSyncNoResult<TParam> static method
- void action(
- TParam x
- ValueListenable<
bool> ? restriction, - bool? catchAlways,
- String? debugName,
Creates a Command for a synchronous handler function with one parameter and no return type
action
: handler function
restriction
: ValueListenable<bool>
that can be used to enable/disable
the command based on some other state change. If omitted the command can
be executed always except it's already executing
As synchronous function doesn't give the UI any chance to react on on a change of
.isExecuting
,isExecuting isn't supported for synchronous commands and will throw an
assert if you try to use it.
Can't be used with an ValueListenableBuilder
because it doesn't have a value, but you can
register a handler to wait for the completion of the wrapped function.
catchAlways
: overrides the default set by catchAlwaysDefault.
If false
, Exceptions thrown by the wrapped function won't be caught but rethrown
unless there is a listener on thrownExceptions or results.
debugName
optional identifier that is included when you register a globalExceptionHandler
or a loggingHandler
Implementation
static Command<TParam, void> createSyncNoResult<TParam>(
void Function(TParam x) action, {
ValueListenable<bool>? restriction,
bool? catchAlways,
String? debugName,
}) {
return CommandSync<TParam, void>(
(x) => action(x),
null,
null,
restriction,
false,
true,
catchAlways,
debugName,
false,
);
}