How do you color/customize the UIImagePickerContro

问题:

What is the correct way to color the UIImagePickerController's nav bar?
I merely tried to see the background color but I'm getting a faded color as seen in the image below; as if some view is obstructing it.

let picker = UIImagePickerController()
picker.sourceType = type
picker.mediaTypes = [kUTTypeImage]
picker.delegate = self
picker.navigationBar.backgroundColor = UIColor.redColor()

It appears to have some view obscuring the redColor():

(lldb) po picker.navigationBar.subviews
2 values
 {
  [0] = 0x00007fe7bb52a890
  [1] = 0x00007fe7bb52b670
}

What is the correct way to create a solid color for the Navigation Bar?

回答1:

Updated for Swift 4.2

For completeness, I'll add full color customization setup:

let imagePicker = UIImagePickerController()
imagePicker.navigationBar.isTranslucent = false
imagePicker.navigationBar.barTintColor = .blue // Background color
imagePicker.navigationBar.tintColor = .white // Cancel button ~ any UITabBarButton items
imagePicker.navigationBar.titleTextAttributes = [
        NSAttributedString.Key.foregroundColor: UIColor.white
] // Title color

which results in:

回答2:

Try:

picker.navigationBar.translucent = false
picker.navigationBar.barTintColor = .redColor()

Instead of

picker.navigationBar.backgroundColor = UIColor.redColor()

If you want translucent effects, leave translucent = true as default.

回答3:

Here the right solution code in Objective-C. Might be useful.

imagePickerController.navigationBar.translucent = NO;
imagePickerController.navigationBar.barTintColor = [UIColor colorWithRed:0.147 green:0.413 blue:0.737 alpha:1];
imagePickerController.navigationBar.tintColor = [UIColor whiteColor];
imagePickerController.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName: [UIColor whiteColor]};

回答4:

Swift = IOS 8 || 9

Just put this method

func navigationController(navigationController: UINavigationController, willShowViewController viewController: UIViewController, animated: Bool) 
{
     imagePicker.navigationBar.tintColor = .whiteColor()
     imagePicker.navigationBar.titleTextAttributes = [
     NSForegroundColorAttributeName : UIColor.whiteColor()
     ]

}

回答5:

For Swift, IOS 8-10 As rintaro mentioned, I think the main issue here is changing the default translucent property of the picker navigationBar:

picker.navigationBar.translucent = false

This will cause the the navigation bar to use the UINavigationBar appearance if you set this somewhere in your app.

If you need another color you can use
picker.navigationBar.barTintColor = UIColor.someColor

回答6:

UIImagePickerController is a UINavigationController. It can be styled as the same way the UINavigationController get styled.