UISearchBar高度没有调整大小

Question

我有一个UISearchBar，我需要相当大（高度为68px）。我已经尝试从xib的源代码调整大小以及从UISearchbar更改UITextField的子视图，既没有解决问题（如下图所示）：

尝试设置外观（除高度更改外一切正常）：

[[UITextField appearanceWhenContainedIn:[UISearchBar class], nil] setFont:[UIFont fontWithName:@"HelveticaNeue-Light" size:48]];
UITextField *searchField = [self.searchBar valueForKey:@"_searchField"];
searchField.textColor = [UIColor whiteColor];
searchField.keyboardAppearance = UIKeyboardAppearanceDark;
searchField.autocorrectionType = UITextAutocorrectionTypeNo;
CGRect searchFieldRect = searchField.frame;
searchFieldRect.size.height = 100;
searchField.frame = searchFieldRect;

Answer 1

刚刚使用带有文本字段通知的​​UITextField来判断文本何时发生了变化并调用了我的搜索方法。