Disable all Input while UIActivityIndicatorView spinning

Question

How can I disable all Input while the UIActivityIndicatorView is spinning?

Thanks

If you add the spinner to a UIAlertView and then show the alert, then this will achieve what you are after. — Luke
– Luke, Commented Mar 4, 2012 at 11:44
You can also achieve a nice effect with MBProgressHUD but that may be heavier the you want depending on what you are trying to achieve. — FluffulousChimp
– FluffulousChimp, Commented Mar 4, 2012 at 11:56
thanks Luke, how do I "destroy" the UIAlertView if I want it to disapear. Is it OK to have 0 buttons? — mica
– mica, Commented Mar 4, 2012 at 11:58
It's perfectly fine to not have buttons. Just call [someAlertView dismissWithClickedButtonIndex:0 animated:YES]; — b_s
– b_s, Commented Mar 4, 2012 at 12:18
Please go through this Link [Has Detailed Conversation about this Topic][1] [1]: stackoverflow.com/questions/5404856/… — Mohammad Kamar Shad
– Mohammad Kamar Shad, Commented Mar 4, 2012 at 13:31

Rok Jarc · Accepted Answer · 2014-03-11 17:39:33Z

56

You can call beginIgnoringInteractionEvents when you start the spinner

[[UIApplication sharedApplication] beginIgnoringInteractionEvents];

and endIgnoringInteractionEvents when you stop it.

[[UIApplication sharedApplication] endIgnoringInteractionEvents];

Just make sure your code always comes to the point where you call endIgnoringInteractionEvents, otherwise your app will freeze (from the users point of view).

edited Mar 11, 2014 at 17:39

answered Mar 4, 2012 at 12:03

Rok Jarc

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5 Comments

mica Over a year ago

Thanks, works fine. But as I can see, that the view does "remember" a touch and fire the event after the endIgnoreInteractionsEvent. Can this behavior be changed?

Rok Jarc Over a year ago

@mica: wow, that's an interesting observation - haven't noticed this before. I'll take a look. If you're in a hurry you can hijaack application's main window's sendEvent: and there decide (ie. by checking some kind of flag if spinner is animating or not) if you'll send an event down the responder chain or ignore it. One way to hijaack this window is here (the answer with MyKindOfWindow definition).

Rok Jarc Over a year ago

@mica: looks like you've find a bug. According to documentation this shouldn't happen: "Turning off delivery of touch events for a period. An application can call the UIApplication method beginIgnoringInteractionEvents and later call the endIgnoringInteractionEvents method. The first method stops the application from receiving touch events entirely; the second method is called to resume the receipt of such events.

mica Over a year ago

Thanks for your investigation. In this special case the behavior is OK for me. If not, I think I would go the way to place a transparent view over all others, while the UIActivityIndicator is spinning.

Rok Jarc Over a year ago

It does. Syntax would be something like UIApplication.sharedApplication().beginIgnoringInteractionEvents()...

Alexei - check Codidact · Accepted Answer · 2017-01-31 10:28:51Z

9

In Swift 3.0:

To disable interaction:

UIApplication.shared.beginIgnoringInteractionEvents()

To restore interaction:

UIApplication.shared.endIgnoringInteractionEvents()

edited Jan 31, 2017 at 10:28

Alexei - check Codidact

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answered Jan 31, 2017 at 10:07

Gr8Warrior

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Comments

Mike Glukhov · Accepted Answer · 2014-04-02 11:14:36Z

Just an addition to rokjarc answer. Here an example of watchdog to keep app alive. You can call always with some critical interval, maybe 10 sec. And if you need to enable within 10 sec, just call "enable" method.

UIWindow * __weak mainWindow;

- (void)disableGlobalUserInteractionForTimeInterval:(NSTimeInterval)interval
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        mainWindow = [[[UIApplication sharedApplication] windows] lastObject];
    });

    [mainWindow setUserInteractionEnabled:false];

    if (interval > 0)
    {
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(interval * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            [self enableGlobalUserInteraction];
        });
    }
}

- (void)enableGlobalUserInteraction
{
    if (mainWindow)
    {
        [mainWindow setUserInteractionEnabled:true];
    }
}

borninla · Accepted Answer · 2020-08-28 03:37:25Z

0

In Swift 5:

// activity indicator starts
view.isUserInteractionEnabled = false

...

// activity indicator stops
view.isUserInteractionDisabled = true

answered Aug 28, 2020 at 3:37

borninla

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