How to navigate to a UITableView position by the cell it's title using indexing

Posted by BarryK88 on Stack Overflow See other posts from Stack Overflow or by BarryK88
Published on 2012-07-02T20:01:45Z Indexed on 2012/07/03 9:15 UTC
Read the original article Hit count: 168

Filed under:
|
|
|

I'm using a UITableView filled with a around 200 cells containing a title, subtitle and thumbnail image. I want to a have a selection method just like within the contact App from Apple where you can select a character from the alphabet.

I'm at the point where I've drawn the selection interface (A,B,C etc), and via it's delegate I'm retrieving the respective index and title (i.e: A = 1, B = 2, C = 3 etc.).

Now I want to navigate to the first cell, where the first character of the cell it's title is starting with the selected index character. Just like the contacts App.

Can someone give me a direction for how to implement such functionality.

- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index

I filled my sectionIndex by means of

- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView {

    if(searching)
        return nil;

    NSMutableArray *tempArray = [[NSMutableArray alloc] init];
    [tempArray addObject:@"A"];
    [tempArray addObject:@"B"];
    [tempArray addObject:@"C"];
    [tempArray addObject:@"D"];
    [tempArray addObject:@"E"];
    [tempArray addObject:@"F"];
    [tempArray addObject:@"G"];
    [tempArray addObject:@"H"];
    [tempArray addObject:@"I"];
    [tempArray addObject:@"J"];
    [tempArray addObject:@"K"];
    [tempArray addObject:@"L"];
    [tempArray addObject:@"M"];
    [tempArray addObject:@"N"];
    [tempArray addObject:@"O"];
    [tempArray addObject:@"P"];
    [tempArray addObject:@"Q"];
    [tempArray addObject:@"R"];
    [tempArray addObject:@"S"];
    [tempArray addObject:@"T"];
    [tempArray addObject:@"U"];
    [tempArray addObject:@"V"];
    [tempArray addObject:@"W"];
    [tempArray addObject:@"X"];
    [tempArray addObject:@"Y"];
    [tempArray addObject:@"Z"];

    return tempArray;
}

© Stack Overflow or respective owner

Related posts about iphone

Related posts about uitableview