IPhone : I want to save the selected rows in tableview and during searching it will maintain it

here my code,someone help me.

import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

• 
  

  (void)viewDidLoad {

  
  

  [super viewDidLoad];

  
  

  // self.tableView.allowsMultipleSelection = YES;

  
  

  _button=[[UIButton alloc]init];

  
  

  _tableListArray=[NSMutableArray arrayWithObjects:@"Suresh kumar",@"Nanda kumar",@"Cheese",@"Jam",@"Pizza",@"Burger",@"Roll Pizza",@"Butter Bread",@"Bread",nil];

  
  

  _filteredListArray=[[NSMutableArray alloc]initWithArray:_tableListArray];

  
  

  NSLog(@"fiter=>%@",_filteredListArray) ;

  
  

}

-(NSInteger) numberOfSectionsInTableView:(UITableView *)tableView {

// return [_tableListArray count]; return 1;

}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

{

//return [_tableListArray count];
return [_filteredListArray count];

}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

static NSString *cellIdentifier=@"Cell";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell==nil) {
    cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];

}

cell.textLabel.text=[_filteredListArray objectAtIndex:indexPath.row];
NSLog(@"filterarray=>%@",_filteredListArray);

return cell;

}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

{

// i want to know what can i do here

}

pragma mark-TextFieldDelegate

-(BOOL)textFieldShouldReturn:(UITextField *)textField

{

[textField resignFirstResponder];

return YES;

}

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string

{

_textFld.text = [textField.text stringByReplacingCharactersInRange:range withString:string];

NSLog(@"textfield%@",_textFld);

NSString *myString=_textFld.text;


if (myString.length==0) {

    _filteredListArray=_tableListArray;

}

else
 {

NSPredicate *predicate=[NSPredicate predicateWithFormat:@"self contains[cd] %@",myString];

_filteredListArray=[NSMutableArray arrayWithArray:[_tableListArray filteredArrayUsingPredicate:predicate]];

}

[_tableView reloadData];

return  NO;

}

@end