Something like this 
either on UIAlertController
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2 answers
If you want a UIViewController , you need a modal transition over current context.
An example of one of the options on GitHub with a demonstration of work.
VAndrJ VAndrJ
13.4k one ten 31
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On the controller you hang 2 views: you put the first clear color (you can find how to do it with dimming, as on the screen), you cling to all sides in 0 indents; 2nd you customize as you wish and you cling with the necessary indents.
Dmitry Steshin Dmitry Steshin
116 2
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