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How to Properly Handle Keyboard Notifications in Objective-C for Form Validation on iOS 16?

๐Ÿ‘€ Views: 0 ๐Ÿ’ฌ Answers: 1 ๐Ÿ“… Created: 2025-08-24
ios objective-c keyboard

I'm building a feature where I'm working through a tutorial and I've looked through the documentation and I'm still confused about I'm facing an issue where my keyboard is covering the text fields in my form when it appears, preventing users from seeing what they're typing. I've set up observers for keyboard notifications, but it seems like my offsets are not calculated correctly, leading to an awkward user experience. I'm developing on iOS 16 and using Auto Layout. Hereโ€™s what I have so far: ```objective-c - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil]; } - (void)viewWillDisappear:(BOOL)animated { [super viewWillDisappear:animated]; [[NSNotificationCenter defaultCenter] removeObserver:self]; } - (void)keyboardWillShow:(NSNotification *)notification { NSDictionary *info = [notification userInfo]; CGSize keyboardSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size; CGFloat keyboardHeight = keyboardSize.height; // Adjust the bottom constraint of the scroll view self.scrollView.contentInset = UIEdgeInsetsMake(0, 0, keyboardHeight, 0); self.scrollView.scrollIndicatorInsets = self.scrollView.contentInset; } - (void)keyboardWillHide:(NSNotification *)notification { self.scrollView.contentInset = UIEdgeInsetsZero; self.scrollView.scrollIndicatorInsets = UIEdgeInsetsZero; } ``` So when the keyboard shows, Iโ€™m adjusting the `contentInset` of my `UIScrollView`, but it seems like the text fields are still being covered. Iโ€™ve also ensured that my text fields are inside the scroll view, and Iโ€™m calling `[self.scrollView setNeedsLayout];` after adjusting the insets. However, when I run the app, the keyboard covers the text fields instead of pushing them up. I also checked the debugger and noticed that the keyboard height being fetched is correct, but the adjustments to the scroll view donโ€™t seem to take effect properly. Have I misunderstood how to adjust the scroll view or is there something I am missing in the lifecycle of my view controller? Any advice would be appreciated! I'm working on a service that needs to handle this. I've been using Objective-C for about a year now. Any pointers in the right direction? Am I missing something obvious? Am I missing something obvious? This is my first time working with Objective-C stable. Any help would be greatly appreciated!