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所以我有上有一个“后退”按钮,导航栏和一个UISearchBar了这条正确的:隐藏/显示后退按钮上的导航栏时,搜索栏打开/关闭
[输入图像描述这里] [1]
当的UISearchBar打开/节目,取消按钮隐藏/显示:
[在这里输入的形象描述] [2]
中的UISearchBar打开时,我要的是,我希望它基本上“覆盖”后退按钮。当它关闭时,我想让它“揭开”后退按钮。这是我到目前为止的代码:
#import "SearchViewController.h"
@interface SearchViewController()
@end
- (void)viewDidLoad {
[super viewDidLoad];
if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
self.edgesForExtendedLayout = UIRectEdgeNone;
UISearchBar *searchBar = [UISearchBar new];
searchBar.showsCancelButton = NO;
[searchBar sizeToFit];
searchBar.delegate = self;
self.navigationItem.titleView = searchBar;
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:nil style:UIBarButtonItemStylePlain target:self action:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
[searchBar setShowsCancelButton:YES animated:YES];
}
- (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
[searchBar setShowsCancelButton:NO animated:YES];
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
[searchBar resignFirstResponder];
[searchBar setShowsCancelButton:NO animated:YES];
}
@end
我已经尝试了做:在searchBarTextDidBeginEditing/searchBarTextDidEndEditing self.navigationItem.hidesBackButton = NO/YES;
但离开那个地方后退按钮是空的!
[输入图像描述这里] [3]
有没有一种方法可以让搜索栏扩展到后退按钮?谢谢!
这并没有帮助我的情况。但是,我靠得更近,但是当我重新显示后退按钮时,箭头丢失。你能帮助我吗?我已更新我的问题 – user1282637
谢谢,我会尽快尝试 – user1282637