How to cover also the UIStatusBar with UIView when

问题:

How to cover also the UIStatusBar with UIView when i cover all the screen with the UIView?

回答1:

I was battling how to do this for a long time too! Finally figured it out :) The key is to set the windowLevel of your new window to really high so it lives on top of all the other windows/views/statusbar etc:

UIWindow *keyWin = [UIApplication sharedApplication].keyWindow;
UIWindow *hudWindow = [[UIWindow alloc] initWithFrame:CGRectMake(0.0f, 0.0f, keyWin.frame.size.width, keyWin.frame.size.height)];
hudWindow.backgroundColor = [UIColor blackColor];
hudWindow.alpha = 0.60;
[hudWindow setWindowLevel:10000.0f];
[hudWindow setHidden:NO];

Enjoy!

回答2:

The best thing you can do is hide the status bar with:

[[UIApplication sharedApplication] setStatusBarHidden:YES animated:NO]

and show it again when you need it.

You can basically removeFromSuperview any time you want to remove the view.

回答3:

If you're trying to create a UIAlertView-like effect, I don't think you can do this. You might file a feature enhancement request with Apple at http://bugreporter.apple.com.

回答4:

Nice, but I made these two changes. Adding 1.0 to UIWindowLevel still hides the status bar, and I have no idea why.

self.windowLevel = UIWindowLevelStatusBar+2.0f;

self.userInteractionEnabled = NO;

Setting the Statusbar userInteractionEnabled property to NO will ensure that your scroll views will scroll to top when someone taps on this statusbar.