Why doesn't my search table view appear when beginning search? - iphone

Question

I've wired a UISearchDisplayController into my app along with a search bar. I've initialized it as so:
self.filteredObjectArray = [NSMutableArray arrayWithCapacity:[self.objectArray count]];
UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 43)];
searchBar.delegate = self;
[self.view addSubview:searchBar];
UISearchDisplayController *searchDisplay = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
searchDisplay.delegate = self;
searchDisplay.searchResultsTableView.delegate = self;
searchDisplay.searchResultsDataSource = self;
searchDisplay.searchResultsDelegate = self;
Which is pretty much the way I've seen it in other examples. I've also implemented the appropriate delegate methods, with the important filterContentForSearchText and the shouldReload* methods shown below:
- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
[self.filteredObjectArray removeAllObjects]; // First clear the filtered array.
for (XRay *xray in objectArray) {
NSString *combinedLabel = [self combinedLabel:xray];
if ([combinedLabel rangeOfString:searchText options:(NSCaseInsensitiveSearch)].location != NSNotFound) {
[self.filteredObjectArray addObject:xray];
}
}
}
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString
{
[self filterContentForSearchText:searchString scope:
[[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]];
return YES;
}
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption
{
[self filterContentForSearchText:self.searchDisplayController.searchBar.text scope:
[[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:searchOption]];
return YES;
}
However my search is not working when I give the search text box focus or input any characters. You'll also notice that the greyed out view does not appear over my regular table view.
EDIT
cellForRowAtIndexPath
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"XraySearchChoice";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
XRay *xray = nil;
if (tableView == self.searchDisplayController.searchResultsTableView) {
xray = [self.filteredObjectArray objectAtIndex:indexPath.row];
} else {
xray = [self.objectArray objectAtIndex:indexPath.row];
}
cell.textLabel.text = [self combinedLabel:xray];
return cell;
}

Answer 1

I figured out what was wrong and I'm a bit surprised to be honest. Once I set a property on the SearchTableViewController:
#property (nonatomic, strong) UISearchDisplayController *searchDisplay;
And updated my code to use that one, everything worked from there. Here is my initializing code with the new property.
- (void)viewDidLoad
{
self.filteredObjectArray = [NSMutableArray arrayWithCapacity:[self.objectArray count]];
UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 43)];
searchBar.delegate = self;
self.tableView.tableHeaderView = searchBar;
self.searchDisplay = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
self.searchDisplay.delegate = self;
self.searchDisplay.searchResultsDataSource = self;
self.searchDisplay.searchResultsDelegate = self;
}

Answer 2

Try with below code it will help you
self.filteredObjectArray = [NSMutableArray arrayWithCapacity:[self.objectArray count]];
UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 43)];
searchBar.delegate = self;
//[self.view addSubview:searchBar];
self.theTableView.tableHeaderView = searchBar;//theTableView your tableview object
UISearchDisplayController *searchDisplay = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
self.searchController = searchDisplay;
[searchBar release];
searchDisplay.delegate = self;
searchDisplay.searchResultsDataSource = self;
searchDisplay.searchResultsDelegate = self;