How to implement single/double click on the UITableView?

  To get the touch/tap/move count on any control, there are certain methods in the UIResponder class.

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event

To get the single/double click actions on UITableView, please follow the below steps:

1. Create a CustomTableViewCell, sub-class of the UITableViewCell. And override the above mentioned methods. 

#import ”CustomTableViewCell.h”

@implementation CustomTableViewCell

- (void)dealloc {

    [super dealloc];

}

- (void)drawRect:(CGRect)rect {

    CGContextRef ctx = UIGraphicsGetCurrentContext();

    // Use the same color and width as the default cell separator for now

    CGContextSetRGBStrokeColor(ctx, 0.5, 0.5, 0.5, 1.0);

    CGContextSetLineWidth(ctx, 0.5);

    for (int i = 0; i < [columns count]; i++) {

        CGFloat f = [((NSNumber*) [columns objectAtIndex:i]) floatValue];

        CGContextMoveToPoint(ctx, f, 0);

        CGContextAddLineToPoint(ctx, f, self.bounds.size.height);

    }

    CGContextStrokePath(ctx);

    [super drawRect:rect];

}

- (void)addColumn:(CGFloat)position {

    [columns addObject:[NSNumber numberWithFloat:position]];

}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *aTouch = [touches anyObject];

    NSLog(@”touchesBegan tapCount = %d”, [aTouch tapCount]);

}

- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *aTouch = [touches anyObject];

    NSLog(@”touchesCancelled tapCount = %d”, [aTouch tapCount]);

}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *aTouch = [touches anyObject];

    NSLog(@”touchesEnded tapCount = %d”, [aTouch tapCount]);

}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {

    UITouch *aTouch = [touches anyObject];

    NSLog(@”touchesMoved tapCount = %d”, [aTouch tapCount]);

}

2. In the UITableView’s cellForRowAtIndexPath method, add the 

CustomTableViewCell instead of UITableViewCell.

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

NSString *MyIdentifier = [NSString stringWithFormat:@"MyIdentifier %i", indexPath.row];

    CustomTableViewCell *cell = (CustomTableViewCell *)[tableView dequeueReusableCellWithIdentifier:MyIdentifier];

    if (cell == nil) {

        cell = [[[CustomTableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease];

}

UILabel *regNoLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 3, 150, 15)];

//regNoLabel.text = [[self.resultArray objectAtIndex:indexPath.section] valueForKey:@”Ent_Regn_Nbr”];

regNoLabel.text = @”Apple”;

regNoLabel.font = [UIFont systemFontOfSize:12.0];

[cell addSubview:regNoLabel];

[regNoLabel release];

        return cell;

}

When you test the application with this, you can observe the tap count in the logs.