Which UI object to do this?

Question

I have seen many times waiting panels (panels with a uiactivityindicatorview) black/dark with some transparency and white labels. Like this one :

enter image description here

I guess it is a standard element. Where can I find it?

I was searching for a visual guide to the cocoa components some time ago, but there seems to be none: http://stackoverflow.com/questions/2781055/is-there-a-visual-guide-to-the-uikit-components — Tim Büthe, Jul 18 '11 at 14:47

score 1 · Accepted Answer · answered Jul 18 '11 at 14:44

1

Try This. it's the best solution I came across to show the activity. MBProgressHUD

answered Jul 18 '11 at 14:44

k-thorat

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score 0 · Answer 2 · edited Sep 25 '13 at 21:51

0

As by now there is no standard UIElement for that in iOS.

But checkout this library:

edited Sep 25 '13 at 21:51

Dave Clemmer

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answered Jul 18 '11 at 14:45

joern

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score 0 · Answer 3 · answered Jul 18 '11 at 14:48

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MBProgressHUD looks nice. You might want to check out http://code.google.com/p/toast-notifications-ios/ too.

answered Jul 18 '11 at 14:48

Tim Büthe

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score 0 · Answer 4 · answered Jul 18 '11 at 15:15

There's no iOS component that does this.

If you don't want to include an external library just for this one component then you can do it using UI components.

/* Warning, typed from memory */

// Create the UIView that's the background
UIView *pleaseWaitView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 80)];
[pleaseWaitView setBackgroundColor:[UIColor colorWithWhite:0.5 alpha:0.5]];
[[pleaseWaitView layer] setCornerRadius:5.0f];

// And create an activity indicator
UIActivityIndicator *i = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
[i startAnimating];
[pleaseWaitView addSubview:i];
[i release];

// Add it to the main view (in the middle)
[pleaseWaitView setCenter:CGPointMake(self.view.bounds.size.width/2, self.view.bounds.size.height/2)];
[self.view addSubview:pleaseWaitView];

You can add a UILabel with whatever text you want (in your case, 'Authenticating') in the same way as you added the activity indicator.

The tricky part is setting the corner radius - you will probably need this at the top of your .m file :

#import <QuartzCore/QuartzCore.h>

NB You can do this in interface builder as well if you want (apart from the corner radius bit!) ;)

score 0 · Answer 5 · edited May 23 '17 at 11:48

I answered a question that included an overlay like this. I included the code and the overlay image you need to do it with. Take a look at this answer and take a look at the screen shot it created. I use this overlay as I send email in the background so you will want to edit the code to do your function but the overlay code is already in place.

Locking the Fields in MFMailComposeViewController

Happy Coding!

score 0 · Answer 6 · answered Jul 18 '11 at 21:30

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Check out DSActivityView. I've successfully used it in a few of my projects.

answered Jul 18 '11 at 21:30

chris

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Which UI object to do this?

6 Answers6