Make shake effect for label in ios?

Question

Am working with shake effect for label i called the animation while pressing cell in tableview but it is not working.if i call animation in cellForRowAtIndexPath:(NSIndexPath *)indexPath it is working but if i cal it in didSelectRowAtIndexPath:(NSIndexPath *)indexPath it is not working. could any one help me??? thanks in advance

   -(void)shakeAnimation:(UILabel*) label {
    const int reset = 5;
    const int maxShakes = 6;

    //pass these as variables instead of statics or class variables if shaking two controls simultaneously
    static int shakes = 0;
    static int translate = reset;

    [UIView animateWithDuration:0.09-(shakes*.01) // reduce duration every shake from .09 to .04
                          delay:0.01f//edge wait delay
                        options:(enum UIViewAnimationOptions) UIViewAnimationCurveEaseInOut
                     animations:^{label.transform = CGAffineTransformMakeTranslation(translate, 0);}
                     completion:^(BOOL finished){
                         if(shakes < maxShakes){
                             shakes++;

                             //throttle down movement
                             if (translate>0)
                                 translate--;

                             //change direction
                             translate*=-1;
                             [self shakeAnimation:label];
                         } else {
                             label.transform = CGAffineTransformIdentity;
                             shakes = 0;//ready for next time
                             translate = reset;//ready for next time
                             return;
                         }
                     }];
}

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

    [self shakeAnimation:cell.MyHomeMenuCountlabel];

}

Answer 1

use this code for shake animation for views

-(void)shakeAnimation:(UILabel*) label
 {
        CABasicAnimation *shake = [CABasicAnimation animationWithKeyPath:@"position"];
        [shake setDuration:0.1];
        [shake setRepeatCount:5];
        [shake setAutoreverses:YES];
        [shake setFromValue:[NSValue valueWithCGPoint:
                             CGPointMake(label.center.x - 5,label.center.y)]];
        [shake setToValue:[NSValue valueWithCGPoint:
                           CGPointMake(label.center.x + 5, label.center.y)]];
        [label.layer addAnimation:shake forKey:@"position"];
}

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

    UITableViewCell cell = [theTableView cellForRowAtIndexPath:theIndexPath]; 
UILabel label=(UILabel*)[cell.contentView viewWithTag:2001];
[self shakeAnimation:label];

}

Answer 2

There are 2 ways to do this :

1.Try this function :

NSArray *arrIndexPath = [NSArray arrayWithObject:indexPath];
[dropTable reloadRowsAtIndexPaths:arrIndexPath withRowAnimation:UITableViewRowAnimationFade];

in didSelectRowAtIndexPath function.

Make animation in cellForRowAtIndexPath only.

2.Assign a tag property to your cell in cellForRowAtIndexPath.

cell.tag = indexPath.row.

In didSelectRowAtIndexPath :

Then using subviews of table, get the cell.tag equal to indexPath.row and taking the reference of same cell and then do animation:

for (MyHomeViewCell *cell in [table subviews]) { // change name of table here 
  if ([cell isKindOfClass:[MyHomeViewCell class]]) { 
    if (cell.tag == indexPath.row) { 
        [self shakeAnimation:cell.MyHomeMenuCountlabel]; 
    } 
  } 
}

Answer 3

Finlay i got you solution hope this may Helps you. For shake particular Label you can add UITapGestureRecognizer for getting Particular UILabel tap and set Shake animation into UITapGestureRecognizer's @selector method like Bellow example:-

- (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] autorelease];
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    }

    UILabel *cellTitle=[[UILabel alloc]initWithFrame:CGRectMake(100, 7, 300, 30)];
    cellTitle.userInteractionEnabled = YES;
    cellTitle.tag = indexPath.section;
    [cellTitle setBackgroundColor:[UIColor clearColor]];
    [cellTitle setFont:[UIFont fontWithName:@"Helvetica" size:14]];
    [cellTitle setText:_objects[indexPath.row]];
    [cellTitle setTextColor:[UIColor blackColor]];
    [cell.contentView addSubview:cellTitle];


    UITapGestureRecognizer *labelTap = [[UITapGestureRecognizer alloc] init];
    [labelTap addTarget:self action:@selector(viewPatient:)];
    [labelTap setDelegate:nil];
    [labelTap setNumberOfTapsRequired:1];
    [cellTitle addGestureRecognizer:labelTap]; // cellTitle add here
    [labelTap release];
    return cell;
}



-(void)viewPatient:(id)sender
{

    UILabel *lObjLabel = (UILabel *)[sender view];

    CGFloat t = 2.0;
    CGAffineTransform translateRight  = CGAffineTransformTranslate(CGAffineTransformIdentity, t, 0.0);
    CGAffineTransform translateLeft = CGAffineTransformTranslate(CGAffineTransformIdentity, -t, 0.0);

    lObjLabel.transform = translateLeft;

    [UIView animateWithDuration:0.07 delay:0.0 options:UIViewAnimationOptionAutoreverse|UIViewAnimationOptionRepeat animations:^{

        [UIView setAnimationRepeatCount:10];
        lObjLabel.transform = translateRight;
    } completion:^(BOOL finished) {

        if (finished) {
            [UIView animateWithDuration:0.05 delay:0.0 options:UIViewAnimationOptionBeginFromCurrentState animations:^{
                lObjLabel.transform = CGAffineTransformIdentity;
            } completion:NULL];


        }
    }];
}

It code working like:-