搜索键在ios中按下时没有任何反应 [英] Nothing happens when search key presses in ios

问题描述

我是iOS开发的新手。我想在我的应用中添加一个搜索栏。当触摸搜索栏时，键盘会弹出。但是当我按下搜索按钮时，它不会关闭键盘。我的控制器.h文件如下。

 @ interface SearchViewController：
 UIViewController< ; UITableViewDelegate，UITableViewDataSource，UISearchBarDelegate> {
 
 IBOutlet UISearchBar * searchBar; 
 IBOutlet UITableView * tableView; 
 NSMutableArray * listOfItems; 
 NSMutableArray * copyListOfItems; 
 NSArray *歌曲; 
 BOOL搜索; 
 BOOL letUserSelectRow; 
} 
 @property（强大的，非原子的）NSArray *歌曲; 
 @property（强，非原子）UITableView * tableView; 
 @property（强，非原子）UISearchBar * searchBar; 
 @end 

我在.m文件中实现了以下方法。但他们没有调用。

  - （ void ）searchBarSearchButtonClicked ：（UISearchBar *）searchBar {
 NSLog（ @ 搜索点击）; 
 [self.searchBar resignFirstResponder]; 
} 
 
  - （ void ）searchBarCancelButtonClicked：（UISearchBar *）searchBar {
 NSLog（ @ 取消点击）; 
} 

有人能解释一下原因吗？

解决方案

< blockquote>

我没有看到任何引用链接到搜索按钮的UIButton类或IBOutlet或者捕获按钮点击事件的IBAction方法。

我想你会发现以下链接很有用：

http://klanguedoc.hubpages.com/hub/IOS-5-Tutorial-on-How-To-Dismiss-the-UI-Keyboard [ ^ ]



如果您在阅读上述链接中的文章后仍然遇到问题，只需在.h文件中添加一个喊叫：）

添加委托并初始化声明

  @ interface  RestaurantViewController：UIViewController< ui searchdisplaydelegate，> 
 
 UISearchDisplayController * resName_search; 
 UISearchBar * mySearchBar; 

.m文件中的

 mySearchBar = [[UISearchBar alloc] init]; 
 [mySearchBar setDelegate： self ]; 
  //   [mySearchBar setShowsCancelButton：YES animated：NO];  
 resName_search = [[UISearchDisplayController alloc] initWithSearchBar：mySearchBar contentsController： self ]; 
 resName_search.delegate =  self ; 
 resName_search.searchResultsDataSource =  self ; 
 resName_search.searchResultsDelegate =  self ; 
 [ self  .view addSubview：resName_search.searchBar]; 
 [resName_search.searchBar setFrame：CGRectMake（ 0 。 0 ，barOriginY + 79。 0 ， 106 。 0 ， 40 。 0 ）]; 
 
  - （ BOOL ）searchBarShouldBeginEditing：（UISearchBar *）searchBar 
 {
 NSLog（ @ 输入文字点击）; 
 
 返回 是; 
} 
  - （ BOOL ）searchBarShouldEndEditing：（UISearchBar *）searchBar 
 {
 
 NSLog（< span class =code-string> @ 取消点击）; 
 返回 是; 
 
} 

I'm really new to iOS development. I wanted to add a search bar to my app. When touching on the search bar key board pops up. But when I press the search button it doesn't dismiss the keyboard. My controller .h file is as belows.

@interface SearchViewController : 
UIViewController<UITableViewDelegate,UITableViewDataSource,UISearchBarDelegate>{
    
    IBOutlet UISearchBar *searchBar;
    IBOutlet UITableView *tableView;
    NSMutableArray *listOfItems;
    NSMutableArray *copyListOfItems;
    NSArray *songs;
    BOOL searching;
    BOOL letUserSelectRow;
}
@property(strong,nonatomic)NSArray *songs;
@property(strong,nonatomic)UITableView *tableView;   
@property(strong,nonatomic)UISearchBar *searchBar;
@end

I have implemented the following methods in .m file. But they don't invoke.

-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
     NSLog(@"search clicked");
    [self.searchBar resignFirstResponder];
}

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{
    NSLog(@"Cancel Clicked");
}

Can anybody explain me the reason?

解决方案

Hi,
I don't see any reference to a UIButton class or IBOutlet linked to the search button or an IBAction method that will capture the button click event.
I think you will find the following link useful:
http://klanguedoc.hubpages.com/hub/IOS-5-Tutorial-on-How-To-Dismiss-the-UI-Keyboard[^]

If you still have problems after going through the article in above link, just put a shout :)

in .h file add delegate and initialize declare

@interface RestaurantViewController : UIViewController <uisearchdisplaydelegate,>

    UISearchDisplayController      *resName_search;
    UISearchBar *mySearchBar;

in .m file

    mySearchBar = [[UISearchBar alloc]init];
    [mySearchBar setDelegate:self];
//    [mySearchBar setShowsCancelButton:YES animated:NO];
    resName_search = [[UISearchDisplayController alloc] initWithSearchBar:mySearchBar contentsController:self];
    resName_search.delegate = self;
    resName_search.searchResultsDataSource = self;
    resName_search.searchResultsDelegate = self;
    [self.view addSubview:resName_search.searchBar];
   [resName_search.searchBar setFrame:CGRectMake(0.0, barOriginY+79.0, 106.0, 40.0)];

-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar
{
NSLog(@" enter text clicked");

    return YES;
}
-(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar
{

 NSLog(@"cancel clicked");
   return YES;

}

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