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Xcode 12.4 supports iOS14.4 and earlier. Xcode 12.5 supports iOS14.5.
Try searching Stackoverflow for xcode 12.4 unsupported version.
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Unfortunately, me too, on iPhone 13 mini. Did not try the 12 mini.
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Apparently iOS13 Developer Beta 5 (according to a post in StackView in late September 2019). Earlier posts suggest it was Beta 3 or 4.UIKit - Resolved IssuesPrior to iOS 13, UITextField assumed that the frames of its leftView and rightView were correctly set when assigned and would never change. Starting in iOS 13, the implementation of leftViewRect(forBounds:) and rightViewRect(forBounds:) now ask the view for its systemLayoutSizeFitting(:). To achieve the previous behavior when linking against and running on iOS 13, add explicit sizing constraints on the view, wrap it in a plain UIView, or subclass the view and implement systemLayoutSizeFitting(:). (51787798)I'm trying to find the release notes which I have seen
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Using UITextFieldViewModeAlways is not the behaviour I want.In my app, the problem happens when I set the text, or if I edit and tap the clear button then the rightView button appeards in the left of the text fieldI have submitted a bug report with a simple app that demonstrates1) On 13.3 simulator, but not iOS12 device, the rightView button is placed in the left of the UITextField at startup . It should be in the right2) Tapping the button causes the text to be set and the rightViewbutton then moves to the right - simulator3) Editing the field and tapping return key causes the rightView button to return to the left - simulator and iOS12 iPhone (I implemented textFieldShouldReturn and resigned first responder)4) Editing the field and tapping the clear button causes the rightViewbutton to appear in the left -simulator and deviceThese problems appear to happen on the simulator and iOS12 iPhone only if there are size constraints on the button, which Beta 5 release notes specifically said add.However, in my real app removing the size constraints on the button does not fix the problem.
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It occurs sometimes but often - maybe 50%. If it is on the left and I set the text again it usually returns to the correct postion but can go wrong again. I have not found a pattern. I only set the rightView once. I tried setting it every time I set the text but that did not work.On a device one can see the button flit to the left and then back to the right when it does not stay on the left.rightViewMode is UITextFieldViewModeUnlessEditingConstraints are size - width and height
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When this started happening to me in December 2019, I eventually found the latest build in 'Previous Builds'. The testers did not receive emails advising of the updates. So it took a while before I realised that the app was not working 'correctly' because they did not have the latest build installed. Previously TestFlight worked well.I tried to contact Apple Support but after initially talking about TestFlight in the browser rather than the app and stating incorrect facts about which versions were available for testing, they then asked 20 questions so I gave up.
