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How to animate uiscrollview scroll, with customized velocity, while calling the scrollviewdidscroll delegate?
Obviously there’s setContentOffset(animated) but this is way too slow, as the animation needs to be triggered by a swipe motion, similar to a pageviewcontroller. Because of that, there is an ugly delay from fast swipe to slow animation since I can’t change the animation speed of that function.
I tried UIView.animate and UIViewPropertyAnimator, trying to animate either the bounds or the content offset but nothing worked. The animation needs to be interruptible by another swipe, so uiview.animate couldn’t work, and uiviewpropertyanimator wouldn’t call scrollview delegate methods which I need to update other graphics.
The only thing that sort of works is a timer, set very fast but it’s stuttery and I know it’s not ideal to use a timer for animation.
Is there any way of animating a uiscrollview, interruptible, while calling scrollviewdidscroll along the way, with adjustable speed?
ios swift animation uiscrollview
edited Jan 3 at 9:14
Kaushik Makwana
955623
asked Jan 2 at 21:07
MilesMiles
977
add a comment |
Obviously there’s setContentOffset(animated) but this is way too slow, as the animation needs to be triggered by a swipe motion, similar to a pageviewcontroller. Because of that, there is an ugly delay from fast swipe to slow animation since I can’t change the animation speed of that function.
I tried UIView.animate and UIViewPropertyAnimator, trying to animate either the bounds or the content offset but nothing worked. The animation needs to be interruptible by another swipe, so uiview.animate couldn’t work, and uiviewpropertyanimator wouldn’t call scrollview delegate methods which I need to update other graphics.
The only thing that sort of works is a timer, set very fast but it’s stuttery and I know it’s not ideal to use a timer for animation.
Is there any way of animating a uiscrollview, interruptible, while calling scrollviewdidscroll along the way, with adjustable speed?
ios swift animation uiscrollview
edited Jan 3 at 9:14
Kaushik Makwana
955623
asked Jan 2 at 21:07
MilesMiles
977
Don't quite understand your question since the view already performed some scrolling (after all,scrollViewDidScrollwas called) but you want to animate scrolling on top of that?
– FJ de Brienne
Jan 3 at 1:29
I want to animate the view, with that delegate method being called along the way. (The animation should tigger the delegate)
– Miles
Jan 3 at 1:51
1- Use a UIPanGestureRecognizer. 2- Don't attempt at animating during the panGesture, simply move the contentOffset to the new position, with iOS's refresh rate, nobody can tell and all system views do this. 3- If you want to do inertia panning on finger lift, use UIKit Dynamics to animate. 4- Call the scrollView delegate method during your pan gesture.
– FJ de Brienne
Jan 3 at 1:54
add a comment |
Obviously there’s setContentOffset(animated) but this is way too slow, as the animation needs to be triggered by a swipe motion, similar to a pageviewcontroller. Because of that, there is an ugly delay from fast swipe to slow animation since I can’t change the animation speed of that function.
I tried UIView.animate and UIViewPropertyAnimator, trying to animate either the bounds or the content offset but nothing worked. The animation needs to be interruptible by another swipe, so uiview.animate couldn’t work, and uiviewpropertyanimator wouldn’t call scrollview delegate methods which I need to update other graphics.
The only thing that sort of works is a timer, set very fast but it’s stuttery and I know it’s not ideal to use a timer for animation.
Is there any way of animating a uiscrollview, interruptible, while calling scrollviewdidscroll along the way, with adjustable speed?
ios swift animation uiscrollview
edited Jan 3 at 9:14
Kaushik Makwana
955623
asked Jan 2 at 21:07
MilesMiles
977
Obviously there’s setContentOffset(animated) but this is way too slow, as the animation needs to be triggered by a swipe motion, similar to a pageviewcontroller. Because of that, there is an ugly delay from fast swipe to slow animation since I can’t change the animation speed of that function.
I tried UIView.animate and UIViewPropertyAnimator, trying to animate either the bounds or the content offset but nothing worked. The animation needs to be interruptible by another swipe, so uiview.animate couldn’t work, and uiviewpropertyanimator wouldn’t call scrollview delegate methods which I need to update other graphics.
The only thing that sort of works is a timer, set very fast but it’s stuttery and I know it’s not ideal to use a timer for animation.
Is there any way of animating a uiscrollview, interruptible, while calling scrollviewdidscroll along the way, with adjustable speed?
ios swift animation uiscrollview
ios swift animation uiscrollview
edited Jan 3 at 9:14
Kaushik Makwana
955623
asked Jan 2 at 21:07
MilesMiles
977
edited Jan 3 at 9:14
Kaushik Makwana
955623
asked Jan 2 at 21:07
MilesMiles
977
edited Jan 3 at 9:14
Kaushik Makwana
955623
edited Jan 3 at 9:14
Kaushik Makwana
955623
edited Jan 3 at 9:14
Kaushik Makwana
955623
955623
asked Jan 2 at 21:07
MilesMiles
977
asked Jan 2 at 21:07
MilesMiles
977
asked Jan 2 at 21:07
MilesMiles
977
977
Don't quite understand your question since the view already performed some scrolling (after all,scrollViewDidScrollwas called) but you want to animate scrolling on top of that?
– FJ de Brienne
Jan 3 at 1:29
I want to animate the view, with that delegate method being called along the way. (The animation should tigger the delegate)
– Miles
Jan 3 at 1:51
1- Use a UIPanGestureRecognizer. 2- Don't attempt at animating during the panGesture, simply move the contentOffset to the new position, with iOS's refresh rate, nobody can tell and all system views do this. 3- If you want to do inertia panning on finger lift, use UIKit Dynamics to animate. 4- Call the scrollView delegate method during your pan gesture.
– FJ de Brienne
Jan 3 at 1:54
add a comment |
Don't quite understand your question since the view already performed some scrolling (after all,scrollViewDidScrollwas called) but you want to animate scrolling on top of that?
– FJ de Brienne
Jan 3 at 1:29
I want to animate the view, with that delegate method being called along the way. (The animation should tigger the delegate)
– Miles
Jan 3 at 1:51
1- Use a UIPanGestureRecognizer. 2- Don't attempt at animating during the panGesture, simply move the contentOffset to the new position, with iOS's refresh rate, nobody can tell and all system views do this. 3- If you want to do inertia panning on finger lift, use UIKit Dynamics to animate. 4- Call the scrollView delegate method during your pan gesture.
– FJ de Brienne
Jan 3 at 1:54
Don't quite understand your question since the view already performed some scrolling (after all,
scrollViewDidScroll was called) but you want to animate scrolling on top of that?– FJ de Brienne
Jan 3 at 1:29
Don't quite understand your question since the view already performed some scrolling (after all,
scrollViewDidScroll was called) but you want to animate scrolling on top of that?– FJ de Brienne
Jan 3 at 1:29
I want to animate the view, with that delegate method being called along the way. (The animation should tigger the delegate)
– Miles
Jan 3 at 1:51
I want to animate the view, with that delegate method being called along the way. (The animation should tigger the delegate)
– Miles
Jan 3 at 1:51
1- Use a UIPanGestureRecognizer. 2- Don't attempt at animating during the panGesture, simply move the contentOffset to the new position, with iOS's refresh rate, nobody can tell and all system views do this. 3- If you want to do inertia panning on finger lift, use UIKit Dynamics to animate. 4- Call the scrollView delegate method during your pan gesture.
– FJ de Brienne
Jan 3 at 1:54
1- Use a UIPanGestureRecognizer. 2- Don't attempt at animating during the panGesture, simply move the contentOffset to the new position, with iOS's refresh rate, nobody can tell and all system views do this. 3- If you want to do inertia panning on finger lift, use UIKit Dynamics to animate. 4- Call the scrollView delegate method during your pan gesture.
– FJ de Brienne
Jan 3 at 1:54
add a comment |
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Don't quite understand your question since the view already performed some scrolling (after all,
scrollViewDidScrollwas called) but you want to animate scrolling on top of that?– FJ de Brienne
Jan 3 at 1:29
I want to animate the view, with that delegate method being called along the way. (The animation should tigger the delegate)
– Miles
Jan 3 at 1:51
1- Use a UIPanGestureRecognizer. 2- Don't attempt at animating during the panGesture, simply move the contentOffset to the new position, with iOS's refresh rate, nobody can tell and all system views do this. 3- If you want to do inertia panning on finger lift, use UIKit Dynamics to animate. 4- Call the scrollView delegate method during your pan gesture.
– FJ de Brienne
Jan 3 at 1:54