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  • UISearchBar with TableView in iOS

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    How to use UISearchBar with TableView in iOS

    If we have a huge list of items and want to search a item from the list then we use the UISearchBar with TableView and the item will be displayed in the table which have the matching value with the search text .

    Here are the steps:

    Step1: Add UITableView to the main.storyboard.
    Step2: set the delegate and dataSource for the tableView
    Step3: Create the outlet fot tableView with following Syntax __weak IBOutlet UITableView *myTableView;
    Step 4: add the UISearchBar to main.storyboard.
    Step 5:set the delegate for the searchBar.
    Step 5: map the myTableView with TableView.


    ViewController.h

    #import <UIKit/UIKit.h>
    @interface ViewController : UIViewController
    {
        __weak IBOutlet UITableView *myTableView;
    
     NSMutableArray *stateArray;
        NSMutableArray *tempArray;
    
        }
    @end
    


    ViewController.m

    #import "ViewController.h"
    @interface ViewController ()
    @end
    @implementation ViewController
    - (void)viewDidLoad {
        [super viewDidLoad];
        stateArray = [[NSMutableArray alloc]initWithObjects:@"Rajasthan", @"Uttar Pradesh", @"Uttarakhand",@"West Bengal",@"Tamil Nadu",@"Sikkim",@"Gujarat",@"Haryana",@"Himachal Pradesh",@"Karnataka", nil];
    
        tempArray = [[NSMutableArray alloc]init];
    
        for (id object in stateArray) {
    
            [tempArray addObject:object];
        }
    
    }
    
    - (void)didReceiveMemoryWarning {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    
    #pragma mark - TableMethods
    
    - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    
        return 1;
    }
    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    
        return [tempArray count];
    }
    
    - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
    
        NSString *cellIdentifier = @"MyTableCell";
    
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
    
        if (cell == nil) {
    
            cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
        }
        cell.textLabel.text = [tempArray objectAtIndex:indexPath.row];
        return cell;
    
    }
    
    # pragma Delegate
    
    - (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
     //called when text starts editing
    {
        NSLog(@"Editing bigin\n\n");
    
    }
    
    - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
    
        [tempArray removeAllObjects];
    
        if (searchText.length) {
    
            for (NSString *string in stateArray) {
    
    
          NSRange range = [string rangeOfString:searchText options:NSCaseInsensitiveSearch];
    
                if (range.length) {
    
                    [tempArray addObject:string];
    
                }
            }
    
        }
        else{
    
            [tempArray addObjectsFromArray:stateArray];
        }
       [myTableView reloadData];
    
    }
    @end
    

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