UISearch栏不区分大小写？

发布于 2024-08-25 13:51:42 字数 719 浏览 6 评论 0原文

在表视图中，我设置了 UISearchBar、设置委托并添加协议。

当用户点击一个单词时，一切正常，除了“网球”的搜索与“网球”不同。

如何使搜索栏成为不区分大小写的 UISearchBar？这是我的代码，我认为所有事情都会发生：

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
 [tableData removeAllObjects];// remove all data that belongs to previous search
 if([searchText isEqualToString:@""]||searchText==nil){
  [myTableView reloadData];
  return;
 }
 NSInteger counter = 0;
 for(NSString *name in dataSource)
 {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init];
  NSRange r = [name rangeOfString:searchText];
  if(r.location != NSNotFound)
   [tableData addObject:name];
  counter++;
  [pool release];
 }
 [myTableView reloadData];
}

原文

In a table view I have set a UISearchBar, set the delegate, and add the protocol.

When user tap a word everything is okay except that the search of "tennis" is different from "Tennis".

How can I make the search bar a case-insensitive UISearchBar? Here is my code where I think evrything happens:

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
 [tableData removeAllObjects];// remove all data that belongs to previous search
 if([searchText isEqualToString:@""]||searchText==nil){
  [myTableView reloadData];
  return;
 }
 NSInteger counter = 0;
 for(NSString *name in dataSource)
 {
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init];
  NSRange r = [name rangeOfString:searchText];
  if(r.location != NSNotFound)
   [tableData addObject:name];
  counter++;
  [pool release];
 }
 [myTableView reloadData];
}

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花之痕靓丽 2024-09-01 13:51:43

最简单的方法可能是

 NSRange r = [name rangeOfString:searchText options:NSCaseInsensitiveSearch];

The easiest way to do this is probably

 NSRange r = [name rangeOfString:searchText options:NSCaseInsensitiveSearch];

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自此以后，行同陌路 2024-09-01 13:51:43

试试这个。

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
    [DetailSearchArray removeAllObjects];// remove all data that belongs to previous search

    if([searchText isEqualToString:@""]){
        [table reloadData];
        return;
    }

    NSInteger counter = 0;
    NSArray *result = [[NSArray alloc] initWithArray:[resultArray filteredArrayUsingPredicate:predicate]];

    for (NSString *name in  resultArray  ) {
        NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init];
        NSRange r = [name rangeOfString:searchText options:NSCaseInsensitiveSearch];
        //NSRange r=[name rangeOfString:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
        if(r.location != NSNotFound)
        {
            if(r.location== 0)//that is we are checking only the start of the names.
            {
                [DetailSearchArray addObject:name]; 
            }
        }

        }
        counter++;
        [pool release];
    }

    [table reloadData];
}

Try this.

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
    [DetailSearchArray removeAllObjects];// remove all data that belongs to previous search

    if([searchText isEqualToString:@""]){
        [table reloadData];
        return;
    }

    NSInteger counter = 0;
    NSArray *result = [[NSArray alloc] initWithArray:[resultArray filteredArrayUsingPredicate:predicate]];

    for (NSString *name in  resultArray  ) {
        NSAutoreleasePool *pool = [[NSAutoreleasePool alloc]init];
        NSRange r = [name rangeOfString:searchText options:NSCaseInsensitiveSearch];
        //NSRange r=[name rangeOfString:searchText options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchText length])];
        if(r.location != NSNotFound)
        {
            if(r.location== 0)//that is we are checking only the start of the names.
            {
                [DetailSearchArray addObject:name]; 
            }
        }

        }
        counter++;
        [pool release];
    }

    [table reloadData];
}

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染火枫林 2024-09-01 13:51:43

当您进行比较时，请尝试使用小写版本进行比较。

NSRange r = [[name lowercaseString] rangeOfString:[searchText lowercaseString]];

只是为了澄清，这不会更改任何值，只是返回原始值的小写版本，然后用它来进行比较，

When you do the comparison, try doing it with the lowercase version.

NSRange r = [[name lowercaseString] rangeOfString:[searchText lowercaseString]];

Just to clarify, this will not change any of the values, just return a lowercase version of the original, that you then use to do the comparison with,

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