in iOS16, there are A viewController, and when push to a new ViewController, and the new ViewController sets it's navigationItem.titleView to a UISearchBar, and then pop back to A viewController, the UINavigarionBar's height is incorrect. is there any methods I can recover the UINavigarionBar's height?

When debug app, it will crash when app launch, and print below info: libbz2.1.0.dylib is a system library, and how we can resolve this problem?

I have a app that need to use libbz, and when use Xcode to build and launch, it will crash and the console will print: dyld log And I found when I set the compiler settings for debug: Optimization Level -> Fastest, smallest[-Os] Link Time Optimization -> No the crash does not appear. but for debug, I think the the right compiler settings is: Optimization Level -> None[-O0] Link Time Optimization -> Increment why this happened and what can I do to fix it?

When use Xcode15 and iOS 14 simulator to run app, it will crash, and the crash stack is: Thread 1 Queue : com.apple.main-thread (serial) #0 0x0000000104b074a5 in __cxx_global_var_init.4 () #1 0x000000014fb6ec95 in ImageLoaderMachO::doModInitFunctions(ImageLoader::LinkContext const&) () #2 0x000000014fb6f08a in ImageLoaderMachO::doInitialization(ImageLoader::LinkContext const&) () #3 0x000000014fb69bb7 in ImageLoader::recursiveInitialization(ImageLoader::LinkContext const&, unsigned int, char const*, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) () #4 0x000000014fb67ec7 in ImageLoader::processInitializers(ImageLoader::LinkContext const&, unsigned int, ImageLoader::InitializerTimingList&, ImageLoader::UninitedUpwards&) () #5 0x000000014fb67f68 in ImageLoader::runInitializers(ImageLoader::LinkContext const&, ImageLoader::InitializerTimingList&) () #6 0x000000014fb5b26b in dyld::initializeMainExecutable() () #7 0x000000014fb5ff56 in dyld::_main(macho_header const*, unsigned long, int, char const**, char const**, char const**, unsigned long*) () #8 0x000000014fb5a1c2 in start_sim () #9 0x000000024760e424 in dyld4::prepareSim(dyld4::RuntimeState&, char const*) () #10 0x000000024760cabc in dyld4::prepare(dyld4::APIs&, dyld3::MachOAnalyzer const*) () #11 0x000000024760c3bd in start () And I found two same issues: 1.https://issuetracker.google.com/issues/301372178; 2.https://github.com/realm/realm-swift/issues/8369 From these two issue, I know Xcode15 use new linker(ld_prime), and not support iOS <15; So if we want to support iOS 14, we only have one solution that add the -Wl,-ld_classic options to the OTHER_LDFLAGS? And for now, the crash only happened in iOS 14 simulator, but will it affect the iPhone device if we don't add the -Wl,-ld_classic options to the OTHER_LDFLAGS?

When call: [UITabBarController setViewControllers:animated:] It crashed and raise an Fatal Exception: Fatal Exception: NSInternalInconsistencyException Attempting to select a view controller that isn't a child! (null) the crash stack is: Fatal Exception: NSInternalInconsistencyException 0 CoreFoundation 0x8408c __exceptionPreprocess 1 libobjc.A.dylib 0x172e4 objc_exception_throw 2 Foundation 0x82215c _userInfoForFileAndLine 3 UIKitCore 0x38a468 -[UITabBarController transitionFromViewController:toViewController:transition:shouldSetSelected:] 4 UIKitCore 0x3fa8a4 -[UITabBarController _setSelectedViewController:performUpdates:] 5 UIKitCore 0x3fa710 -[UITabBarController setSelectedIndex:] 6 UIKitCore 0x8a5fc +[UIView(Animation) performWithoutAnimation:] 7 UIKitCore 0x3e54e0 -[UITabBarController _setViewControllers:animated:] 8 UIKitCore 0x45d7a0 -[UITabBarController setViewControllers:animated:] And it appear sometimes, what's the root cause?