Show delete button on wobbling image and delete that particular image

Question

I have added images in scroll view. On long press i have given wobble animation to all images. i want to show delete button on the right top corner of every image as in iphone when we uninstall any application same like that.

- (void)startWobble {
for (UIView *imgView in viewsInScrollView) {
    UIButton *deleteImgButton = [[UIButton alloc] initWithFrame:CGRectMake(55,-7,12,12)];        
    [deleteImgButton setImage:[UIImage imageNamed:@"close_icon.png"] forState:UIControlStateNormal];
    [deleteImgButton addTarget:self action:@selector(deleteImage:) forControlEvents:UIControlEventTouchUpInside];
    [imgView addSubview:deleteImgButton];


    imgView.transform = CGAffineTransformRotate(CGAffineTransformIdentity, RADIANS(-5));        
    [UIView animateWithDuration:0.20
                          delay:0.0
                        options:(UIViewAnimationOptionAllowUserInteraction | UIViewAnimationOptionRepeat | UIViewAnimationOptionAutoreverse)
                     animations:^ {
                         imgView.transform = CGAffineTransformRotate(CGAffineTransformIdentity, RADIANS(5));
                     }
                     completion:NULL
     ];
}
}
-(void)deleteImage : (id)sender {
     NSLog(@"Delete Image");
}

here the selector is not called.... how do i solve this..???

Can you show the header of this file ? Did you declare deleteImage method in your header file ? — giorashc, Nov 27 '12 at 09:32
when i added animation to imageview and added button in image view may be it disables user interaction http://stackoverflow.com/questions/12354919/add-selector-to-button-on-uiscrollview-views-added-dynamically — Pallavi, Nov 27 '12 at 09:39
I want to add action on that delete image button..... but 'deleteImage' method is not getting call.... — Pallavi, Nov 27 '12 at 10:32

score 1 · Answer 1 · answered Nov 27 '12 at 10:32

1

You can add the delete button with a TAG value in all of your custom views initially and make them hidden. Now in - (void)startWobble method you can just make them unhide just using their TAG.

I have done in one of my applications in this way . Hope this will help you.

answered Nov 27 '12 at 10:32

Mihir Das

458
4
13

views are not custom, i added it dynamically, user can add or delete image dynamically.. – Pallavi Nov 27 '12 at 10:38
Yes the code you have written to add the delete button in - (void)startWobble . You can use this code where you are creating those views dynamically. Thats what i mean.. – Mihir Das Nov 27 '12 at 10:40
yes i tried but it is not calling that selector, i thin k it is because of '[imgView addSubview:deleteImgButton];' i added that in image view and animate that image view. during animating it not calls any selector. i try to add that in scroll view, at that time it works fine :) – Pallavi Nov 27 '12 at 11:00
You have added that to image view ?? Thats why that is not calling .You are right. Create a View add imageview and the delete button that view . This way you can fix your issue.. – Mihir Das Nov 27 '12 at 11:05

score 1 · Answer 2 · edited May 23 '17 at 12:21

Simple.....

#define RADIANS(degrees) ((degrees * M_PI) / 180.0)

CGAffineTransform leftWobble = CGAffineTransformRotate(CGAffineTransformIdentity, RADIANS(-5.0));
CGAffineTransform rightWobble = CGAffineTransformRotate(CGAffineTransformIdentity, RADIANS(5.0));

itemView.transform = leftWobble;  // starting point

[UIView beginAnimations:@"wobble" context:itemView];
[UIView setAnimationRepeatAutoreverses:YES]; // important
[UIView setAnimationRepeatCount:10];
[UIView setAnimationDuration:0.25];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(wobbleEnded:finished:context:)];

itemView.transform = rightWobble; // end here & auto-reverse

[UIView commitAnimations];

...

- (void) wobbleEnded:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context 
{
     if ([finished boolValue]) {
        UIView* item = (UIView *)context;
        item.transform = CGAffineTransformIdentity;
     }
}

Got it from thisQuestion

score 0 · Answer 3 · answered Nov 27 '12 at 12:03

0

Found this quote from apple docs and remembered your question :

During an animation, user interactions are temporarily disabled for the views being animated. (Prior to iOS 5, user interactions are disabled for the entire application.)

answered Nov 27 '12 at 12:03

giorashc

13,691
3
35
71

Show delete button on wobbling image and delete that particular image

3 Answers3