iOS 7 Fade status bar text in and out?

Question

I know it's possible to remove a status bar, however the frame shifts up by the height of the status bar if you set it to hidden. As such, the following code:

[UIApplication sharedApplication].statusBarHidden = YES;

is not sufficient for just hiding the text of the status bar. What I'm ultimately attempting to accomplish here is something similar to the Gmail app in which as the side-menu is displayed, the status bar text is hidden, and then once a selection is made the frame returns to normal with the status bar text displayed.

This question shows how to animate the hiding of the status bar but the result is that the entire window shifts up by the height of the status bar. I'm trying to avoid that from happening.

set "View controller-based status bar appearance" to NO in .plist and try with fade animation — Surender Rathore, Dec 22 '13 at 17:51

Rajesh Kumar · Accepted Answer · 2016-02-23T13:48:43.200

8

Objective-C version:

[AppDelegate instance].window.windowLevel = UIWindowLevelStatusBar;

Swift version:

AppDelegate().window!.windowLevel = UIWindowLevelStatusBar

edited Feb 23 '16 at 13:48

answered Jun 27 '14 at 09:12

Rajesh Kumar

821
12
20

score 2 · Answer 2 · answered Dec 22 '13 at 19:57

2

This should do it. It's a bit of a hack, however:

NSString *key = [[NSString alloc] initWithData:[NSData dataWithBytes:(unsigned char []){0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x42, 0x61, 0x72} length:9] encoding:NSASCIIStringEncoding];
id object = [UIApplication sharedApplication];
UIView *statusBar;
if ([object respondsToSelector:NSSelectorFromString(key)]) {
     statusBar = [object valueForKey:key];
}
[UIView animateWithDuration:0.3
                     animations:^{
                         statusBar.alpha = 0.0f; 
                     }
];

answered Dec 22 '13 at 19:57

runmad

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9
99
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`(unsigned char []){0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x42, 0x61, 0x72}` ... why not just `"statusBar"` or whatever those ASCII chars are? Guessing it says status bar.. `0x74 = 0x73 + 1` and `t = s + 1` – James Webster Dec 22 '13 at 20:09
2

Because this gets around Apple's checks. – runmad Dec 22 '13 at 20:37
3

Terrible solution, whether it is getting around Apple's checks or not. What happens in iOS7.1? 7.2? 8.0? – Léo Natan Dec 23 '13 at 04:59
2

You mean this solution is based on circumventing an Apple static analysis check for the string `statusBar`? Terrible solution! I down vote not because it's necessarily a wrong answer, but not future proof and I can't advocate it. – James Webster Dec 23 '13 at 09:44

AaoIi · Answer 3 · 2018-08-24T19:27:17.800

Somehow applying the following code in my code result of nil while unwrapping optional

AppDelegate().window!.windowLevel = UIWindowLevelStatusBar

I have used the following to make status bar text hide :

UIApplication.shared.delegate?.window!!.windowLevel = UIWindowLevelStatusBar

And to reset status bar to default and show the text :

UIApplication.shared.delegate?.window!!.windowLevel = UIWindowLevelNormal

iOS 7 Fade status bar text in and out?

3 Answers3

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