可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):
问题:
I'm trying to change the Status Bar color in my Swift app to white, but am hitting a brick wall. I have 3 ViewControllers that are each embedded in a NavigationController (could that be the issue? I've already tried to place the code in the NavigationController class.) I've tried both of the following pieces of code in the didFinishLaunchingWithOptions of my AppDelegate.swift file but neither worked.
application.statusBarStyle = .LightContent
and
UIApplication.sharedApplication().statusBarStyle = .LightContent
All that the Docs have to say about it is that UIBarButtonStyle is an Int and gave me this enum snippet which didn't help me at all with implimentation.
enum UIStatusBarStyle : Int {
case Default
case LightContent
case BlackOpaque
}
What am I missing?
回答1:
You have two options.
If you want to continue manually setting the style of the status bar, continue doing what you're doing, but you'll need to add the following key to your info.plist file with a value of NO
.
View controller-based status bar appearance
Or, if you want to continue to use view controller based status bar appearance, instead of setting the application's statusBarStyle, override the preferredStatusBarStyle
property in each view controller for which you'd like to specify a status bar style.
Swift 3
override var preferredStatusBarStyle: UIStatusBarStyle {
return .lightContent
}
Swift 2
override func preferredStatusBarStyle() -> UIStatusBarStyle {
return UIStatusBarStyle.LightContent
}
回答2:
Swift 3.0
in AppDelegate.swift didFinishLaunchingWithOptions
UIApplication.shared.statusBarStyle = .lightContent
Info.plist
View controller-based status bar appearance -> NO
Swift 2.2
in AppDelegate.swift didFinishLaunchingWithOptions
UIApplication.sharedApplication().statusBarStyle = .LightContent
Info.plist
View controller-based status bar appearance -> NO
回答3:
You have to set the:
navigationController.navigationBar.barStyle = .black
and the text will appear in white
回答4:
For iOS9.x and Xcode7, just put this inside AppDelegate.swift
:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
UINavigationBar.appearance().barStyle = .Black
}
This will automatically turn your status bar's style to .Lightcontent
for all the view controllers inside a UINavigationController.
(Also, delete View controller-based status bar appearance
from Info.plist to suppress the warnings you're probably seeing too!)
回答5:
In Swift 3, status bar style has changed to a computed property in UIViewController that you can override like this:
override var preferredStatusBarStyle: UIStatusBarStyle {
return .lightContent //or default
}
回答6:
On iOS 9 the following (setStatusBarStyle) is deprecated and you will get a warning if you go that way.
UIApplication.sharedApplication().setStatusBarStyle(UIStatusBarStyle.LightContent, animated: true)
If you want all statusBars changed in a single shot try adding the following to your Info.plist. This will also make your launch-screen status bar white. While the code above won't.
<key>UIStatusBarStyle</key>
<string>UIStatusBarStyleLightContent</string>
<key>UIViewControllerBasedStatusBarAppearance</key>
<false/>
回答7:
for me all above dind't work until i add:
self.navigationController?.navigationBar.barStyle = .black;
so:
- Set
UIViewControllerBasedStatusBarAppearance
to YES
in .plist
- In
viewDidLoad
call self.setNeedsStatusBarAppearanceUpdate();
- Override preferredStatusBarStyle
override var preferredStatusBarStyle: UIStatusBarStyle {
return .lightContent
}
- In overrided method i set also the
navigationBar.barStyle
so final
for light content:
override var preferredStatusBarStyle: UIStatusBarStyle {
self.navigationController?.navigationBar.barStyle = .black;//or default
return .lightContent //or default
}
and for black content use default
The source from here and here.
and if this doesn't work you can try add a UINavigationController
extension
:
extension UINavigationController
{
override open var preferredStatusBarStyle: UIStatusBarStyle {
if let lastVC = self.viewControllers.last
{
return lastVC.preferredStatusBarStyle
}
return .default
}
}
回答8:
Strange, using Swift 3.1 & XC8.2.1, but all of the above didn't work.
What I did, is just
extension UINavigationController
{
override open var preferredStatusBarStyle: UIStatusBarStyle {
get {
return .lightContent
}
}
}
No Plist, no other stuff.
HTH
回答9:
In Swift 3.0 you can override a getter in ViewController for View controller-based status bar appearance:
override var preferredStatusBarStyle: UIStatusBarStyle {
get { return .lightContent }
}
回答10:
Don't edit your Info.plist. Add this to your ViewController.swift:
override func preferredStatusBarStyle() -> UIStatusBarStyle {
return UIStatusBarStyle.LightContent
}
回答11:
Step 1. Add to info.plist View controller-based status bar appearance -> NO
Step 2. Add code in method where you need to change status bar color:
UIApplication.shared.statusBarStyle = .lightContent //(or .default)
setNeedsStatusBarAppearanceUpdate()
Key line of code: setNeedsStatusBarAppearanceUpdate()