How to expand and collapse rows using header section in a UITableView

Question

I have a table view. Now I want to collapse and expand rows by tapping on the section header. In other words, when I tap the header the rows display for that section. How ca

Answer 1

configure viewForHeaderInSection:

like this

(UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{


    UILabel *lblHeader = [[UILabel alloc]init];

        lblHeader.text = @"Section 0";        

    lblHeader.backgroundColor = [UIColor blueColor];
    lblHeader.font = [UIFont fontWithName:@"Avenir" size:18];
    lblHeader.textAlignment=NSTextAlignmentLeft;
    lblHeader.userInteractionEnabled=YES;
    UIGestureRecognizer *gr;
if(section==0){
    lblHeader.text = @"Section 0";  
    gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture:)];
}else if(section == 1){
    lblHeader.text = @"Section 1";  
    gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleGesture1:)];
}



    [lblHeader addGestureRecognizer:gr];
    return lblHeader;
}

then write seperate action calls

- (void)handleGesture:(UIGestureRecognizer *)gestureRecognizer { 
}

- (void)handleGesture1:(UIGestureRecognizer *)gestureRecognizer { 
}