I'm trying to add a banner above the status bar when receiving an in-app push notification. From what I've been reading, it seems like the only way to dynamically change the status bar style in iOS 7 is to set UIViewControllerBasedStatusBarAppearance
to NO
. This is not only really annoying to have to change all my different view controllers prefersStatusBarHidden
to [UIApplication sharedApplication].statusBarHidden
, but it also doesn't give the effect I'm looking for.
When the banner slides from the top, I still want the 20 pts of space that the status bar provides to stay, but the status bar content to disappear until after the banner slides back up. Is there a way to either do this or add a subview or window above the status bar?
Basically I'm looking to do this:
Create a new window and add your banner view to that window. When you need to show the banner, you can set yourwindow.hidden = NO;
You can further add animations to showing it and to dismiss it yourwindow.hidden = YES;
.
The key here is is setting yourwindow.windowLevel = UIWindowLevelStatusBar+1;
That will make sure your banner view and the yourwindow
always appear above the status bar.
Feel free to ask questions regarding any of the above.
To put your view controller above status bar:
[[[[UIApplication sharedApplication] delegate] window] setWindowLevel:UIWindowLevelStatusBar+1];
To put your view controller behind status bar:
[[[[UIApplication sharedApplication] delegate] window] setWindowLevel:UIWindowLevelNormal];
Add UIView banner above status bar-Swift4
func showBannerView(bannerView:UIView){
let window = UIApplication.shared.keyWindow!
window.addSubview(bannerView)
window.windowLevel = UIWindowLevelStatusBar+1
}
func removeBannerView(bannerView:UIView){
bannerView.removeFromSuperview()
let window = UIApplication.shared.keyWindow!
window.windowLevel = UIWindowLevelStatusBar - 1
}
来源:https://stackoverflow.com/questions/22241412/add-uiview-banner-above-status-bar-ios-7