你好，针对iOS13的修改，是不是不太严谨？

[ncwubird]

#if defined(__IPHONE_13_0)
UISearchTextField *searchField = obj.searchTextField;
searchField.keyboardAppearance = UIKeyboardAppearanceDefault;
#elif defined(__IPHONE_7_0)
UITextField *searchField = [obj valueForKey:@"_searchField"];
searchField.keyboardAppearance = UIKeyboardAppearanceDefault;
#else
obj.keyboardAppearance = UIKeyboardAppearanceDefault;
#endif

我的iphone是iOS 12.4，在使用Xcode 11调试时，会出现闪退，是否应该加上下面类似的处理？
#if defined(__IPHONE_13_0)
if (@available(iOS 13, *)) {
UISearchTextField *searchField = obj.searchTextField;
searchField.keyboardAppearance = UIKeyboardAppearanceDefault;
}

[fabiosoft]

take a look here... #118