how to show suggestion for UISearchBar search?

Question

I am making a demo Weather app, and inside this i am using UISearchBar so can user entry city name, but i don't know how to display suggestion for that.

For example, if user enters "lon" than there should be cities name suggesting start from "lon" like London, etc.

Both. How to retrieve data from a city name list and show it. I want to show this data in TableView but if there is another way it is good. — Kumar, Apr 01 '15 at 06:59
as you have search bar, also use searchtableview, you can filter the data as user type and show into table. — Retro, Apr 01 '15 at 07:09

score 1 · Accepted Answer · answered Apr 01 '15 at 07:15

UISearchBar has its own delegation protocol UISearchBarDelegate, the method -

-(BOOL)searchBar:(UISearchBar *)searchBar
shouldChangeTextInRange:(NSRange)range
  replacementText:(NSString *)text

make possible while editing to do some extra operations, here you can put your NSPredicate to see if the inserted text has a city that BEGINSWITH or CONTAINS the entered text.

score 0 · Answer 2 · answered Apr 01 '15 at 09:07

You can do that by,

create an array (List) of places to be shown ... add object in array !

NSArray *list;

NSArray *listFiles;

2.Filter the content ..

-(void)filter :(NSString *) match1


    listFiles = [[NSMutableDictionary alloc] init];

    NSPredicate *sPredicate = [NSPredicate predicateWithFormat:@"FullName BEGINSWITH[c] %@", match1];

    listFiles = [[ContactDect filteredArrayUsingPredicate:sPredicate ] mutableCopy];
    f_name_array=[[NSMutableArray alloc]init];

    for (NSDictionary *d in listFiles) {

        [self.f_name_array addObject:[d objectForKey:@"FullName"]];

    }
    list=f_name_array;
    NSLog(@"%@",list);



}

then count list in numberOfRowsInTableview :

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

cellForRow ::::

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"abccell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; cell.textLabel.text = [NSString stringWithFormat:@"%@" ,[listFiles objectAtIndex:indexPath.row]]; return cell; }

Call the Filter method while editing textFeild !

[self filter:textfeild1.text];

I wish it will help you .....

thanks .... now working .... but how can i get top cities list or i have to type every city name? — Kumar, Apr 01 '15 at 09:18

how to show suggestion for UISearchBar search?

2 Answers2