iphone - iOS - 如何在 UISearchBar 中对范围栏的外观进行动画处理？

Question

好吧，我读了这篇文章，但是范围栏只是立即显示，没有动画。

Answer 1

这应该有效：

- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
    [searchBar setShowsCancelButton:YES animated:YES];
     searchBar.showsScopeBar = YES;  
    return YES;
    }

    - (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar {
    [searchBar setShowsCancelButton:NO animated:YES];
    [searchBar sizeToFit];  
     searchBar.showsScopeBar = NO;  
    return YES;
    }

请记住关联 UISearchBar 委托。