【问题标题】:Want to add Searchbar on navigation bar when search button is clicked on navigation bar想要在导航栏上单击搜索按钮时在导航栏上添加搜索栏
【发布时间】:2013-11-12 12:37:57
【问题描述】:

我正在使用 UItableView 控制器,我无法将搜索栏添加到导航栏。当单击导航栏上的搜索按钮时,我希望搜索栏出现。如何在导航栏上添加搜索按钮和搜索栏。

【问题讨论】:

  • 你是在使用故事板还是在代码中?
  • 我正在使用故事板

标签: ios uitableview uisearchbar navigationbar


【解决方案1】:

在点击按钮时添加这个 => .m 文件:

 UISearchBar  *sBar = [[UISearchBar alloc]initWithFrame:CGRectMake(0,10,self.navigationController.navigationBar.bounds.size.width,self.navigationController.navigationBar.bounds.size.height/2)];
sBar.delegate = self;
[self.navigationController.navigationBar addSubview:sBar];

并添加这个 => .h 文件

@interface ViewController : UIViewController<UISearchBarDelegate>

【讨论】:

    【解决方案2】:

    要制作这样的搜索栏,您需要在导航栏控制器中插入按钮并将背景图像设置为search.png(您的图像)。因此,当用户单击此按钮时,将目标设置为 searchbar 将打开。请检查以下代码以供参考。

    首先在.h 文件中设置委托方法。

    @interface FriendsViewController : UIViewController <UISearchDisplayDelegate,UISearchBarDelegate,UIAlertViewDelegate>
     @property (nonatomic, strong) UIButton *searchButton;
     @property (nonatomic, strong) UIBarButtonItem *searchItem;
     @property (nonatomic, strong) UISearchBar *searchBar;
     @property (strong, nonatomic) UISearchController *searchController;
     @property (strong, nonatomic) UISearchDisplayController *d1;
    

    然后在导航栏中插入按钮。

    - (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    UIButton *btn=[[UIButton alloc]initWithFrame:CGRectMake(279,9,25, 25)];
    [btn setImage:[UIImage imageNamed:@"search"] //put here your searchimage
    forState:UIControlStateNormal];
    [btn setTitle:@"" forState:UIControlStateNormal];
    [btn addTarget:self action:@selector(clickme:) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *barbtn=[[UIBarButtonItem alloc]initWithCustomView:btn];
    self.tabBarController.navigationItem.rightBarButtonItem=barbtn;
    [self.tabBarController.navigationController.navigationBar setHidden:NO];
    

    现在你必须在clickme你的按钮方法上设置searchcontroller。

    - (IBAction)clickme:(id)sender{
    UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 300, 44.0)];
    searchBar.autoresizingMask =0;
    searchBar.delegate = self;
    searchBar.placeholder = @"Search for items...";
    searchBar.showsScopeBar=YES;
    
    UIView *searchBarWrapper = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 44)];
    searchBarWrapper.autoresizingMask = 0;
    [searchBarWrapper addSubview:searchBar];
    
    self.searchItem = [[UIBarButtonItem alloc] initWithCustomView:searchBarWrapper];
    self.tabBarController.navigationItem.leftBarButtonItem = self.searchItem;
    
    self.navigationItem.rightBarButtonItem = nil;
    self.navigationItem.titleView = nil;
    
      ////////////// ~ Search Display Controller as Object ~/////////////////////////////
    
    self.d1 = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
    self.d1.delegate = self;
    self.d1.searchResultsDataSource = self;
    self.d1.searchResultsDelegate = self;
    self.d1.searchResultsTableView.rowHeight = 40;
    self.d1.displaysSearchBarInNavigationBar = YES;
    self.searchBar.translucent = NO;
    self.searchBar.barTintColor = [UIColor grayColor];
    self.d1.searchBar.tintColor = [UIColor blueColor];
    
    [searchBar sizeToFit];
    
    }
    

    当你点击搜索图标时

    【讨论】:

      【解决方案3】:

      对于搜索按钮,如果需要,您可以使用 UIBarButtonSystemItemSearch。

      self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc]
                                     initWithBarButtonSystemItem:UIBarButtonSystemItemSearch
                                     target:self
                                     action:@selector(actionSearch:)];
      

      您可以将搜索栏设置为导航栏的标题视图

      self.navigationItem.titleView = mySearchBar;
      

      【讨论】:

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