如何使文本框输入视图为搜索栏？

我试图得到适当的解决方案，但我不能任何程序员请给我一个想法如何使。如何使文本框输入视图为搜索栏？

1.是否可以将uitextfield设置为uisearchbar？

UISearchBar *search=[[UISearchBar alloc]init]; 
    search.delegate=self; 
    [_txtLocation setInputView:search];

2.当用户类型，我需要证明它在文本字段的底部覆盖值...

3.请帮我找出解决办法..

来源

2015-10-16 Kishore Kumar

就可以直接使用文本框进行搜索 –

做u想要自动填充该文本框吗？ –

@ShrikantKankatti yes u correct –

使文本字段像搜索栏一样工作- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string代表方法UITextField。所以基本上，你需要实现自动完成功能，这是你如何做到的。要检测哪个文本字段被触发，请将标签分配给文本字段。

在你ViewController.h文件：

@interface ViewController : 
<UIViewController<UITextFieldDelegate,UITableViewDataSource, UITableViewDelegate> 
{ 
    UITableView *autocompleteTableView; 
    UITextField * searchtextField1; 
    UITextField * searchtextField2; 
    NSMutableArray *autoCompleteList; 
    NSMutableArray *initalList; 

}

在你ViewController.m文件：

- (void)viewDidLoad { 
searchtextField1 = [[UITextField alloc] 
           initWithFrame:CGRectMake(5,0, 245, 33)]; 

searchtextField2.tag = 2; 
searchtextFeild1.tag = 1; 


    searchtextField.placeholder = @"eg: make up"; 

    searchtextField.textColor = [UIColor whiteColor]; 

    //[imageView addSubview:searchtextField]; 
    //[self.view addSubview:imageView]; 


    autoCompleteList = [[NSMutableArray alloc] init]; 
    searchtextField1.delegate = self; 
    searchtextField2.delegate = self; 

    autocompleteTableView = [[UITableView alloc]init]; 



    if(screenRect.size.height == 568) 
    { 
     float X_Co_tbl = (self.view.frame.size.width - 271)/2; 
     [autocompleteTableView setFrame:CGRectMake(X_Co_tbl, 105, 271, 120)]; 
    } 

    else if (screenRect.size.width == 414) 
    { 
     float X_Co_tbl = (self.view.frame.size.width - 281)/2; 
     [autocompleteTableView setFrame:CGRectMake(X_Co_tbl, 145, 281, 120)]; 
    } 
    else if(screenRect.size.width == 375) 
    { 
     float X_Co_tbl = (self.view.frame.size.width - 281)/2; 
     [autocompleteTableView setFrame:CGRectMake(X_Co_tbl, 125, 281, 120)]; 
    } 
    else 
    { 
     float X_Co_tbl = (self.view.frame.size.width - 271)/2; 
     [autocompleteTableView setFrame:CGRectMake(X_Co_tbl, 95, 271, 120)]; 
    } 
    autocompleteTableView.delegate = self; 
    autocompleteTableView.dataSource = self; 
    autocompleteTableView.scrollEnabled = YES; 
    autocompleteTableView.hidden = YES; 
    [self.view addSubview:autocompleteTableView]; 
} 

#pragma mark - UITextFieldDelegate 
- (BOOL)textFieldShouldReturn:(UITextField *)textField 
{ 
    [textField resignFirstResponder]; 
    autocompleteTableView.hidden = YES; 

    return YES; 
} 


- (BOOL)textField:(UITextField *)textField 
shouldChangeCharactersInRange:(NSRange)range 
replacementString:(NSString *)string { 
    autocompleteTableView.hidden = NO; 
    if (textField.tag == 1) { 
    /// Initialize your array for searchTextFeild1; 
    initialList = [[NSMutableArray alloc]initWithObjects:@"Face wash",@"Morning face wash",@"Cleanser", nil]; 
} 
if (textField.tag == 2) { 
    /// Initialize your array for searchTextFeild2; 
    initialList = [[NSMutableArray alloc]initWithObjects:@"Face wash",@"Morning face wash",@"Cleanser", nil]; 
} 
    NSString *substring = [NSString stringWithString:textField.text]; 
    substring = [substring 
       stringByReplacingCharactersInRange:range withString:string]; 
    [self searchAutocompleteEntriesWithSubstring:substring]; 
    return YES; 
} 

/// You make Text Field work as Search Bar here 
- (void)searchAutocompleteEntriesWithSubstring:(NSString *)substring { 

    // Put anything that starts with this substring into the autocompleteUrls array 
    // The items in this array is what will show up in the table view 
    [autoCompleteList removeAllObjects]; 
    for(NSString *curString in initialList) { 
     //NSRange substringRange = [curString rangeOfString:substring]; 

     if ([curString rangeOfString:substring options:NSCaseInsensitiveSearch].location != NSNotFound) { 
      [autoCompleteList addObject:curString]; 
     } 
    } 
    [autocompleteTableView reloadData]; 
} 

#pragma mark UITableViewDataSource methods 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger) section { 
    return autoCompleteList.count; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

    UITableViewCell *cell = nil; 
    static NSString *AutoCompleteRowIdentifier = @"AutoCompleteRowIdentifier"; 
    cell = [tableView dequeueReusableCellWithIdentifier:AutoCompleteRowIdentifier]; 
    if (cell == nil) { 
     cell = [[UITableViewCell alloc] 
       initWithStyle:UITableViewCellStyleDefault reuseIdentifier:AutoCompleteRowIdentifier]; 
    } 

    cell.textLabel.text = [autoCompleteList objectAtIndex:indexPath.row]; 
    return cell; 
} 

#pragma mark UITableViewDelegate methods 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { 

    UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath]; 
    searchtextField.text = selectedCell.textLabel.text; 

    autocompleteTableView.hidden = YES; 

    [self goPressed]; 

}

来源

2015-10-16 05:54:04 Rumin

我有疑问，4 uitextfeld放置在我的故事板如何我必须给予特定的文本字段这一切的方法可以使用@选择器？ –

@KishoreKumar请检查我的答案。 –

@KishoreKumar更新了2个TextFields的答案。核实。 – Rumin

在.h文件中

#import <UIKit/UIKit.h> 

    @interface SEMainVC : UIViewController <UITextFieldDelegate>{ 
     NSMutableArray *dummyArray; 
     NSMutableArray *searchArray; 
     NSString *searchTextString; 
    } 

    @property (weak, nonatomic) IBOutlet UITextField *searchTextField; 
    @property (weak, nonatomic) IBOutlet UITableView *contentTableView; 

    - (void) setupData; 

    @end

在.m文件

@interface SEMainVC() 

@end 

@implementation SEMainVC 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    //set the selector to the text field in order to change its value when edited 
    [self.searchTextField addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged]; 
    //here you set up the methods to search array and reloading the tableview 
    [self setupData]; 
    [self updateSearchArray]; 
    [self.contentTableView reloadData]; 
} 
//setting up the data sourch for the mutable array 
- (void) setupData { 
    dummyArray = [[NSMutableArray alloc] init]; 

    [dummyArray addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"dummy 1", @"name" , @"image1.JPG", @"image" , @"dummy 1 description textview", @"description", nil]]; 
    [dummyArray addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"dummy 2", @"name" , @"image1.JPG", @"image" , @"dummy 2 description textview", @"description", nil]]; 
    [dummyArray addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"dummy 3", @"name" , @"image1.JPG", @"image" , @"dummy 3 description textview", @"description", nil]]; 

} 
- (void)didReceiveMemoryWarning 
{ 
    [super didReceiveMemoryWarning]; 
} 

#pragma mark - Table view data source 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
    return 1; 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    return [searchArray count]; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *cellIdentifier = @"Cell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; 
    if(cell == nil){ 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier]; 
    } 
    cell.textLabel.text = [[searchArray objectAtIndex:indexPath.row] objectForKey:@"name"]; 
    return cell; 
} 

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    [self performSegueWithIdentifier:@"DummyDetail" sender:[NSNumber numberWithInt:indexPath.row]]; 
} 

#pragma mark - Search Methods 

-(void)textFieldDidChange:(UITextField*)textField 
{ 
    searchTextString = textField.text; 
    [self updateSearchArray]; 
} 
//update seach method where the textfield acts as seach bar 
-(void)updateSearchArray 
{ 
    if (searchTextString.length != 0) { 
     searchArray = [NSMutableArray array]; 
     for (NSDictionary* item in dummyArray) { 
      if ([[[item objectForKey:@"name"] lowercaseString] rangeOfString:[searchTextString lowercaseString]].location != NSNotFound) { 
       [searchArray addObject:item]; 
      } 
     } 
    } else { 
     searchArray = dummyArray; 
    } 

    [self.contentTableView reloadData]; 
} 

#pragma mark - Table view delegate 

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(NSNumber*)indexNumber 
{ 
    if([[segue identifier] isEqualToString:@"DummyDetail"]){ 

     NSInteger index = [indexNumber integerValue]; 

     SEDetailVC *dummyDetail = [segue destinationViewController]; 
     dummyDetail.dummyImageString = [[searchArray objectAtIndex:index] objectForKey:@"image"]; 
     dummyDetail.dummyTextString = [[searchArray objectAtIndex:index] objectForKey:@"description"]; 
     dummyDetail.title = [[searchArray objectAtIndex:index] objectForKey:@"name"]; 
    } 
} 

- (void)viewDidUnload { 
    [self setSearchTextField:nil]; 
    [self setContentTableView:nil]; 
    [super viewDidUnload]; 
} 
@end

来源

2015-10-16 05:18:24 vijay

为表视图我想添加一个视图控制器或当前视图控制器就足够了。 –

它符合您的要求。你可以添加一个视图控制器或当前视图控制器就足够了。 – vijay

所以你可以解释它是如何作为一个uisearch酒吧... –

如何使文本框输入视图为搜索栏？

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