I have an app that would benefit from a search function on the main screen. I have written some code that halfway accomplishes this task, but it won't find results and it crashes when tapping (x) on the UISearchBar. I have been racking my brain trying to figure out why its not working.
Main View Controller (with 'search' bar on main screen):
ViewController *viewController = [self.storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];
[self.navigationController pushViewController:viewController animated:YES];
[viewController sendSearchRequest:[nameLabel text] sport:[sportLabel text]];
ViewController (view with tableview and UISearchDisplayController)
-(void)sendSearchRequest:(NSString *)request sport:(NSString *)sport{
[self.filteredArray removeAllObjects]; // First clear the filtered array.
self.searchText = request;
/*
* Search the main list for products whose type matches the scope (if
* selected) and whose name matches searchText; add items that match to the
* filtered array.
*/
[self.filteredArray removeAllObjects]; // First clear the filtered array.
self.searchText = request;
/*
* Search the main list for products whose type matches the scope (if
* selected) and whose name matches searchText; add items that match to the
* filtered array.
*/
NSLog(@"Request: %@", request);
for (Athlete *athlete in self.athletes) {
NSComparisonResult result = [[athlete name] compare:request options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [request length])];
if (result == NSOrderedSame) {
[self.filteredArray addObject:athlete];
}
}
[self.searchDisplayController setActive: YES animated: YES];
[self.searchDisplayController.searchBar setText:request];
}
Turns out, it had nothing to do with proper activation. Basically, I had an array that I was filtering, but it was initialized when the view loaded. Well, since I was calling the view very round-a-bout, it never downloaded the array. Instead I downloaded the array from the Main view controller and searched that in the search view controller. Problem solved.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.