In iOS, search display controller is used to query uitableview on the foreground.

1. Use the search display controller control

2. Implementation

   Uisearchdisplaydelegate

3. Define the data of all tables and filtered data, and filter tags.

   @ Property (strong,
   Nonatomic) nsarray * aroriginal;

   @ Property (strong,
   Nonatomic) nsarray * arfiltered;

   @ Property (readwrite,
   Nonatomic) bool issearching;

4. Implemented in the filter input box activation call

   - (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {    if(self.searchDisplayController.searchBar.text.length>0) {        self.isSearching=YES;        NSString *strSearchText = self.searchDisplayController.searchBar.text;        NSMutableArray *ar=[NSMutableArray array];        // correctly working ! Thanx for watching video !        for (NSDictionary *d in self.arOriginal) {            NSString *strData = [d valueForKey:@"name"];            if([strData rangeOfString:strSearchText].length>0) {                [ar addObject:d];            }        }        self.arFiltered=[NSArray arrayWithArray:ar];    } else {        self.isSearching=NO;    }    return YES;}

5. Implementation when displaying each cell

   - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    static NSString *CellIdentifier = @"Cell";        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];    if (cell == nil) {        cell = [[[NSBundle mainBundle] loadNibNamed:@"CCell" owner:self options:nil] objectAtIndex:0];    }    NSDictionary *dToAccess = (self.isSearching)?[self.arFiltered objectAtIndex:indexPath.row]:[self.arOriginal objectAtIndex:indexPath.row];        [(UILabel*)[cell viewWithTag:1] setText:[dToAccess valueForKey:@"name"]];    [(UILabel*)[cell viewWithTag:2] setText:[dToAccess valueForKey:@"price"]];    return cell;}

6. Related project files

   Http://download.csdn.net/detail/remote_roamer/5890617