VC .h
@interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource, UISearchBarDelegate>
{
// ADDED
NSMutableArray *tableData;
NSArray *array;
NSMutableArray *searchResults;
IBOutlet UITableView *tableView;
}
@property (nonatomic, retain) NSArray *array;
@end
// assuming table view is done
VC .m
// ADDED: to search
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
NSLog(@"searching: %@", searchText);
searchText = [searchText lowercaseString];
// search for text in array
if(searchText.length > 0)
{
[tableData removeAllObjects];// clear all data
[searchResults removeAllObjects];
for (NSString *ostr in array)
{
//NSLog(@"looping: %@", str);
NSString *str = [ostr lowercaseString];
NSRange range = [str rangeOfString:searchText];
if(range.location != NSNotFound)
{
NSLog(@"matched: %@", searchText);
[searchResults addObject:ostr];
}
}
//[tableData removeAllObjects];
[tableData addObjectsFromArray:searchResults];
[tableView reloadData];
}
else
{
[tableData removeAllObjects];// clear all data
[tableData addObjectsFromArray:array];
[tableView reloadData];
}
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
NSLog(@"Cancel Button Clicked");
[searchBar resignFirstResponder]; // close keyboard
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
{
NSLog(@"Search Button Clicked");
[searchBar resignFirstResponder]; // close keyboard
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
tableView.delegate = self;
tableView.dataSource = self;
// ADDED
self.array = [NSArray arrayWithObjects:@"Beng", @"Seng", @"Lian", @"Beng2", @"Seng2", @"Lian2", nil];
// must alloc and init. strange. cannot use arrayWithArray
tableData = [[NSMutableArray alloc] init]; //[NSMutableArray arrayWithArray:self.array];
searchResults = [[NSMutableArray alloc] init];//[NSMutableArray arrayWithArray:self.array];
[tableData addObjectsFromArray:self.array];
UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, 0)];
[searchBar sizeToFit];
searchBar.delegate = self;
[searchBar setShowsCancelButton:YES animated:YES];
//[searchBar showsSearchResultsButton];
[self.view addSubview:searchBar];
// place tableview just below search bar. else, the first row of the table view will be hidden behind search bar
// hence adjust the y and height in the (x,y,w,h) of the table view's frame
[tableView setFrame:CGRectMake(0, searchBar.frame.size.height, tableView.frame.size.width, tableView.frame.size.height - searchBar.frame.size.height)];
}
