Animating frame change of UIView is not smooth, results in a bouncy effect

Question

I am trying to animate the frame change of an UIView where both the origin and the size changes. The animation doesn't look smooth and has got a bouncy effect. I am using the following code to do that

[UIView
    animateWithDuration:0.5
    animations:^{
        self.view.frame = newFrame;
    }];

It seems that the size first changes very fast and then the origin changes with the specified duration of the animation which finally results in a bouncy effect. How do I make this look smooth?

Solution 1

On animating the frame change of each of the subviews individually did the magic. Now it animates very smoothly. Thanks.

Solution 2

You could try to change the animation curve, maybe try the linear one.

dispatch_async(dispatch_get_main_queue(), ^{
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.5];
    [UIView setAnimationCurve:UIViewAnimationCurveLinear];
    self.view.frame = newFrame;
    [UIView commitAnimations];
});

Comments

[Soumya Das]

I had already tried using UIViewAnimationCurveLinear but it didn't work. The size is changed immediately and then the animation for the position change kicks in.

[Mellson]

have you tried using the entire block of code? I just tried it - and both the size and origin animates smoothly at the same time

[Soumya Das]

Got it right now. I had to animate all the subviews individually else it has got this bounce effect. Thanks.

[coolcool1994]

this doesn't change the size of the the self.view. It only moves it.