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When I tab through the UITabBarController buttons while loading the data, I get an exception. How can I get through this problem?
How can I disable the buttons until the data is loaded, to avoid the exception being caused?
You can disable and enable all of your UI with
That being said, I recommend digging down and understanding why the app crashes, as you will want to solve the problem and not hide bugs.
One quick shot: Are you doing the loading on another thread? You may only update the UI from the main thread.