问题
I am developing app for iPad with greater than 7.0 version.
I am facing annoying issue regarding UI. When I run app in iOS version with 7.1 it display as below:
I can access the buttons, textfield and all, but can't get background image, button background images of any controls.
I also run in simulator and same problem I get in it, but after reset the simulator, it's running fine. Now the question is, what about device?
When I run same app in different device with different iOS version like 8.0 and above. It's running perfectly.
来源：https://stackoverflow.com/questions/27224347/ui-issue-in-version-7-1