UISearchDisplayController - how to preload searchResultTableView

Question

I want to show some default content when the user taps the Searchbar, but before any text is entered.

I have a solution working using settext:

- (voi         


        

Answer 1

Here's a way to pre-populate the searchController.

// 1. Save previous search results as soon as user enters text

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
    // save searchString

    return YES;
}

// 2. load previous search string at startup

- (void)viewDidLoad 
{
    // create data source for table view
    // searchData may be a NSMutableArray property defined in your interface

    self.searchData = // search your master list for searchString

    // or create your own list using any search criteria you want

    // or you may act depending on user preference
    if(!showPreviousSearch)
    {
        // [searchData removeAllObjects];
    }
}

// 3. provide correct data source when asked

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) 
    {
        ...
    }

    NSMutableArray *dataSource = nil;
    if (tableView == [[self searchDisplayController] searchResultsTableView])
    {
        dataSource = self.searchData;
    }
    else
    {
        dataSource = self.masterData;
    }

    ...

    return cell;
}

// Hope this helps.

Thanks