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Animate a view zoom-bouncing in?

开发者 https://www.devze.com 2023-03-08 05:52 出处:网络
Is there a way to animate a view so that it zooms up and kinda goes a bit too far and rubberbands back to the final size? I\'m unsur开发者_如何学JAVAe how to do this sort of animation.write this code

Is there a way to animate a view so that it zooms up and kinda goes a bit too far and rubberbands back to the final size? I'm unsur开发者_如何学JAVAe how to do this sort of animation.


write this code when you want to trigger this animation

popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.001, 0.001);

[self.view addSubview:popUp];

[UIView animateWithDuration:0.3/1.5 animations:^{
    popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.1, 1.1);
} completion:^(BOOL finished) {
    [UIView animateWithDuration:0.3/2 animations:^{
        popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.9, 0.9);
    } completion:^(BOOL finished) {
        [UIView animateWithDuration:0.3/2 animations:^{
            popUp.transform = CGAffineTransformIdentity;                            
        }];
    }];
}];

SWIFT 5.0

    selectView.transform =
        CGAffineTransform.identity.scaledBy(x: 0.001, y: 0.001)

    view.addSubview(selectView)

    UIView.animate(withDuration: 0.3 / 1.5, animations: {
        selectView.transform =
            CGAffineTransform.identity.scaledBy(x: 1.1, y: 1.1)
    }) { finished in
        UIView.animate(withDuration: 0.3 / 2, animations: {
            selectView.transform = .identity.scaledBy(x: 0.9, y: 0.9)
        }) { finished in
            UIView.animate(withDuration: 0.3 / 2, animations: {
                selectView.transform = CGAffineTransform.identity
            })
        }
    }

This is updated code (from fabio.cionini) as it is accepted answer so updating to latest.


Just refactored the code by Amit Singh using blocks, which makes it much simpler and readable.

popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.001, 0.001);

[self.view addSubview:popUp];

[UIView animateWithDuration:0.3/1.5 animations:^{
    popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1.1, 1.1);
} completion:^(BOOL finished) {
    [UIView animateWithDuration:0.3/2 animations:^{
        popUp.transform = CGAffineTransformScale(CGAffineTransformIdentity, 0.9, 0.9);
    } completion:^(BOOL finished) {
        [UIView animateWithDuration:0.3/2 animations:^{
            popUp.transform = CGAffineTransformIdentity;                            
        }];
    }];
}];


Too many complicated answers

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