如何显示搜索栏的取消按钮？

6 回答

• 1

  Swift 4:

  下面两行代码为我显示取消按钮：

  searchBar.setShowsCancelButton(true, animated: true)
  searchBar.showsCancelButton = true
  

  单击搜索栏后，在 searchBarTextDidBeginEditing() 方法内调用将显示取消按钮 .

  回复于 2024-04-28T13:00:43+08:00
• 0

  使用此代码显示 cancel 按钮 . 当您在 searchBar 中输入文本时，它将显示按钮 .

  -(void) searchBarTextDidBeginEditing:(UISearchBar *)searchBar
  {
      [searchBar setShowsCancelButton:YES animated:YES];
  }
  

  回复于 2024-04-28T13:00:43+08:00
• 1

  目标C.

  - (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
  {
      self.navigationController.navigationBar.hidden = TRUE;
      CGRect r = self.view.frame;
      r.origin.y = -44;
      r.size.height += 44;
      self.view.frame = r;
  
      [searchBar setShowsCancelButton:YES animated:YES];
  }
  
  
  -(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
  {
      [searchBar setShowsCancelButton:NO animated:YES];
  }
  

  斯威夫特

  func searchBarTextDidBeginEditing(searchBar: UISearchBar) {
      self.navigationController.navigationBar.hidden = true
      var r = self.view.frame
      r.origin.y = -44
      r.size.height += 44
  
      self.view.frame = r
      searchBar.setShowsCancelButton(true, animated: true)
  }
  
  func searchBarTextDidEndEditing(searchBar: UISearchBar) {
      searchBar.setShowsCancelButton(false, animated: true)
  }
  

  回复于 2024-04-28T13:00:43+08:00
• 33

  使用此代码显示/隐藏 SearchBar 中的取消按钮

  用户将在SearchBar中启动编辑，显示取消按钮 .

  只有正确设置了 SearchBar 的委托，才能访问以下方法 .

  -(void) searchBarTextDidBeginEditing:(UISearchBar *)searchBar
    {
      //This'll Show The cancelButton with Animation  
      [searchBar setShowsCancelButton:YES animated:YES];
      //remaining Code'll go here
    }
  

  隐藏 CancelButton 作为用户单击取消按钮

  - (void)searchBarCancelButtonClicked:(UISearchBar *) searchBar
   {
          //This'll Hide The cancelButton with Animation  
        [searchBar setShowsCancelButton:NO animated:YES];
         //remaining Code'll go here
   }
  

  回复于 2024-04-28T13:00:43+08:00
• 3

  使用此代码

  searchBar.showsCancelButton=YES;
  

  回复于 2024-04-28T13:00:43+08:00
• 14

  您需要使用UISearchDisplayController，它将自动隐藏导航栏 . 这是代码，

  -(void) createSearchBar
  {
       _searchBar          = [[SearchBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 44)];
       _searchBar.delegate = self;
       [self.view addSubview:_searchBar];
  
      searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:_searchBar contentsController:self];
      searchDisplayController.delegate = self;
      searchDisplayController.searchResultsDataSource = self;
      searchDisplayController.searchResultsDelegate = self;
      searchDisplayController.searchResultsTableView.sectionHeaderHeight = 10;
      searchDisplayController.searchResultsTableView.sectionFooterHeight = 0;
      [searchDisplayController.searchResultsTableView setSeparatorColor:[Color whiteColor]];  
  }
  

  您必须在.h文件中实现协议UISearchBarDelegate，UISearchDisplayDelegate，UITableViewDelegate，UITableViewDataSource .

  _searchBar和searchDisplayController也是.h文件中定义的变量 .

  回复于 2024-04-28T13:00:43+08:00