问题
Up till iOS 7.0, the text field tint color changed to the color you set in storyboard. As of iOS 7.1, it won't change unless you do it programmatically.
Is this a bug? Does anyone know?
回答1:
Here is the solution to work with storyboard.
1) Go to "Identity Inspector"
2) Add "tintColor" attribute in "User Defined Runtime Attributes"
3) Set the desired color.
Thats it.

Or if you want to use same tint color for all textfields throughout the app, juse use,
[[UITextField appearance] setTintColor:color];
回答2:
I have also faced this problem but tint color is working from code.
self.txtPassword.tintColor=[UIColor whiteColor];
来源:https://stackoverflow.com/questions/23268090/ios-7-1-uitextfield-tint-color-doesnt-change-in-storyboard