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  • Category on View to animate subview like popup in iPhone sdk

    @ayush.kush
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    Hi Readers,

    In our app we usually make custom alerts which we need to animate at the time adding it on its superview.


    To achieve it with you custom view make a category like this :

    Put this code into your .h file of category named as UIView+AnimateView : 

    1. @interface UIView (AnimateView)
    2.  
    3. - (void)addSubviewWithBounce:(UIView*)subview;
    4.  
    5. - (void)removeSubviewWithAnimation:(UIView*)subview;
    6.  
    7. @end


    After that use following code in your .m file:

    1. @implementation UIView (AnimateView)
    2.  
    3. - (void)addSubviewWithBounce:(UIView*)subview
    4. {
    5.     subview.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.001, 0.001);
    6.  
    7.     [self addSubview:subview];
    8.  
    9.   [UIView animateWithDuration:0.3/1.5 animations:^{
    10.     CGAffineTransformScale(CGAffineTransformIdentity, 1.1, 1.1);
    11. } completion:^(BOOL finished) {
    12.     [UIView animateWithDuration:0.3/2 animations:^{
    13.         subview.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.9, 0.9);
    14.     } completion:^(BOOL finished) {
    15.         [UIView animateWithDuration:0.3/2 animations:^{
    16.             subview.transform = CGAffineTransformIdentity;
    17.         }];
    18.     }];
    19. }];
    20. }
    21.  
    22. - (void)removeSubviewWithAnimation:(UIView*)subview{
    23.  
    24.     subview.transform = CGAffineTransformIdentity;
    25.  
    26.     [UIView animateWithDuration:0.3/1.5 animations:^{
    27.         subview.transform =  CGAffineTransformScale(CGAffineTransformIdentity, 0.001, 0.001);
    28.     } completion:^(BOOL finished) {
    29.         [subview removeFromSuperview];
    30.     }];
    31. }
    32.  
    33. @end


    Just import this category on any controller and call these function like :

    1. [self.view removeSubviewWithAnimation:subview];
    2. [self.view addSubviewWithBounce:subview];


    Thanks. Happy coding

    category in iOS UIView animation popup effect iOS
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