在iOS中触摸屏时如何隐藏键盘

我正在

iOS

中创建

搜索栏，当我按下搜索栏时，键盘将出现，但搜索完成后，我希望键盘将消失在屏幕上。
我正在实现代码，但它不是隐藏的

 //this methos show to create dynamic search bar
-(void)SearchBarCode                                   
{
       //[[[UIApplication sharedApplication] keyWindow] endEditing:YES];
       self.disableViewOverlay = [[UIView   
       alloc]initWithFrame:CGRectMake(0.0f,44.0f,320.0f,416.0f)];
       self.disableViewOverlay.backgroundColor=[UIColor blackColor];
       self.disableViewOverlay.alpha = 0;

       theSearchBar = [[UISearchBar alloc]initWithFrame:CGRectMake(-61, 46, 378.0f, 50)];
      theSearchBar.autoresizingMask = UIViewAutoresizingFlexibleWidth;
       UIView *searchBarView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 46, 310.0,
       44.0)];
       searchBarView.autoresizingMask = 0;
       theSearchBar.delegate =self;
       [searchBarView addSubview:theSearchBar];
       self.navigationItem.titleView=searchBarView;
       scrollView.backgroundColor = [UIColor brownColor];
       theSearchBar.placeholder = @"Search";
       theSearchBar.delegate = self;
}

- (void) dismissKeyboard
 {
       // add self
      [self.view endEditing:YES];
      [self.theSearchBar becomeFirstResponder];
 }

 - (void)viewDidAppear:(BOOL)animated
 {
       [self.theSearchBar resignFirstResponder];
       [super viewDidAppear:animated];
 }

- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
 {
        [theSearchBar setShowsCancelButton:NO animated:NO];
        [theSearchBar becomeFirstResponder];
 }

- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
 {
        theSearchBar.text = @"";
        [theSearchBar setShowsCancelButton:YES animated:YES];
        [theSearchBar resignFirstResponder];
 }

- (void)searchTableList
 {
        NSString *searchString = theSearchBar.text;
        filteredContentList = [[NSMutableArray alloc]init];
       for (SMSCategory *cat in Arrayobject)
        {
             NSString *tempStr = cat.Name;
             NSComparisonResult result = [tempStr compare:searchString options: 
             (NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, 
             [searchString length])];
             if (result == NSOrderedSame)
             {
                 [filteredContentList addObject:cat];
             }
         }
 }

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
 {
      NSLog(@"Search Clicked");
      [self searchTableList];
      [self DynamicButton:filteredContentList];
 }

 - (void)searchBar:(UISearchBar *)searchBar activate:(BOOL) active
 {
      self.theTableView.allowsSelection = !active;
      self.theTableView.scrollEnabled = !active;
      if (!active) 
         {
           [disableViewOverlay removeFromSuperview];
           [theSearchBar resignFirstResponder];
         }
        else
         {
            self.disableViewOverlay.alpha = 0;
            [self.view addSubview:self.disableViewOverlay];
            [UIView beginAnimations:@"FadeIn" context:nil];
            [UIView setAnimationDuration:0.5];
            self.disableViewOverlay.alpha = 0.6;
            [UIView commitAnimations];

            // probably not needed if you have a details view since you
            // will go there on selection
            NSIndexPath *selected = [self.theTableView
                                 indexPathForSelectedRow];
           if (selected)
           {
               [self.theTableView deselectRowAtIndexPath:selected
                                             animated:NO];
           }
        }
         [theSearchBar setShowsCancelButton:active animated:YES];
 }

.h文件代码

@interface CategoryMainWindowViewController : UIViewController<UISearchBarDelegate,UITextViewDelegate>{
    NSMutableArray *Arrayobject;
    UIView *disableViewOverlay;
    UISearchBar *theSearchBar;
    NSMutableArray *filteredContentList;
    BOOL isSearching;
}

@property(retain) UIView *disableViewOverlay;
@property(retain) NSMutableArray *Arrayobject;
@property (nonatomic, retain) IBOutlet UITableView *theTableView;
@property (nonatomic, retain) IBOutlet UISearchBar *theSearchBar;
@property(nonatomic,retain) UIScrollView *scrollView;
@property(strong,nonatomic) NSString *databasePath;

- (void)searchBar:(UISearchBar *)searchBar activate:(BOOL) active;
- (void)DynamicButton:(NSMutableArray*)objectName;
- (NSMutableArray*)GetData;

 @end

@接口类别MainWindowViewController:UIViewController{
NSMutableArray*阵列对象；
UIView*禁用视图覆盖；
ui搜索栏*搜索栏；
NSMutableArray*filteredContentList；
布尔正在研究；
}
@属性（保留）UIView*disableViewOverlay；
@属性（保留）NSMutableArray*Arrayobject；
@属性（非原子，保留）IBUITableView*TableView；
@属性（非原子，保留）IBUI搜索栏*搜索栏；
@属性（非原子，保留）UIScrollView*scrollView；
@属性（强，非原子）NSString*数据库路径；
-（无效）搜索栏：（UISearchBar*）搜索栏激活：（BOOL）激活；
-（void）DynamicButton:（NSMutableArray*）objectName；
-（NSMutableArray*）获取数据；
@结束
将此方法添加到视图中

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    NSLog(@"touching on screen");
   [self.view endEditing:YES];
}

在
搜索
发生后，您应该调用
键盘
方法

- (void) dismissKeyboard
{
     [self.view endEditing:YES];
     [self.theSearchBar resignFirstResponder];
}

这不能工作，因为“becomeFirstResponder”显示键盘而不是隐藏它！hide命令将是resignFirstResponder，如下所示：

- (void) dismissKeyboard
    {
        // add self
        [self.view endEditing:YES];
        [self.theSearchBar resignFirstResponder];
    }

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
 {
      NSLog(@"Search Clicked");
      [self searchTableList];
      [self DynamicButton:filteredContentList];
      [self dismissKeyboard];
 }

编辑：
如果您只想在用户搜索时隐藏键盘，那么只需实现UISearchBarDelegate-方法就更容易了

-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar;

然后从那里调用[self dismissKeyboard]，如下所示：

- (void) dismissKeyboard
    {
        // add self
        [self.view endEditing:YES];
        [self.theSearchBar resignFirstResponder];
    }

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
 {
      NSLog(@"Search Clicked");
      [self searchTableList];
      [self DynamicButton:filteredContentList];
      [self dismissKeyboard];
 }

检查becomeFirstResponder和resignFirstResponder的组合。我能知道原因吗？当我点击搜索栏时，键盘会出现，但之后我触摸屏幕，它不会隐藏在你调用dismissKeyBoard方法的地方。你是否在主视图中添加了任何滚动视图或其他视图？如果是，则这将不起作用。问题是，当我运行我的应用程序时，键盘已经出现。我希望当我点击搜索栏时键盘出现，我建议你删除所有becomeFirstResponder和辞职FirstResponder，除了你的解雇键盘方法。然后用我在回答中建议的代码替换您的代码，然后重试。并移除手势识别器。但有一个问题是，我的标题没有显示，我在主屏幕stroyboard中设置了我的标题。问题是什么？你的标题是什么意思？指windows标题，如SMS集合和所有