Smooth Scrolling with Touch Screen

13 posts, 0 answers
  1. Yevgeniy
    Yevgeniy avatar
    1 posts
    Member since:
    Jun 2011

    Posted 19 Jun 2011 Link to this post

    Hi,

    Is there a way to create smooth scrolling between the items with touch screen?
    The animation should have acceleration and friction. Like iPhone has.

    Someone already asked for this animation two years ago, so i'm wondering if this option was implemented (before I'll try to work with mouse events and calculating the speed delta myself) or is there any solution for this case?

    Regards,
    Yevgeniy Kiveisha


  2. Milan
    Admin
    Milan avatar
    1989 posts

    Posted 20 Jun 2011 Link to this post

    Hello Yevgeniy,

    I am afraid that this is still not supported by RadCarousel and there no workarounds at the moment. We are evaluating the best possible way to support such scenarios but it is not entirely clear if and when we will be able to introduce such support.

    Regards,
    Milan
    the Telerik team
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  4. Robert
    Robert avatar
    271 posts
    Member since:
    Mar 2011

    Posted 15 Sep 2011 Link to this post

    this would be a great feature to have. I could do with something like this for my touch screen tablet apps.
  5. Maya
    Admin
    Maya avatar
    4062 posts

    Posted 16 Sep 2011 Link to this post

    Hello Robert,

    Thank you for your feedback. We will reconsider the implementation of such a feature.

    Greetings,
    Maya
    the Telerik team

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  6. Arnaud
    Arnaud avatar
    17 posts
    Member since:
    Mar 2013

    Posted 16 Dec 2014 Link to this post

    Hello,

    Any update on this subject ?
    RadCarousel would be really interesting with touch support for scrolling...

    Arnaud.
  7. Nick
    Admin
    Nick avatar
    593 posts

    Posted 16 Dec 2014 Link to this post

    Hi Arnaud,

    RadCarousel does not have integrated touch gesture support, however we are planning to implement it in the near future. 

    Regards,
    Nick
    Telerik
     

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  8. Wolfgang
    Wolfgang avatar
    1 posts
    Member since:
    Mar 2015

    Posted 11 Mar 2015 Link to this post

    Hi Nick,
    you talk about the near future.
    Do you have any updates about this feature?
    Regards, Wolfgang
  9. Maya
    Admin
    Maya avatar
    4062 posts

    Posted 13 Mar 2015 Link to this post

    Hello Wolfgang,

    Our intentions is to be released with our Q2 2015. I do hope this time frame works for you. 

    Regards,
    Maya
    Telerik
     

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  10. Eugeniy
    Eugeniy avatar
    60 posts
    Member since:
    Feb 2011

    Posted 09 Oct 2015 Link to this post

    Haha, almost bought new wpf version)) - I thought 4 years gone - it might be implemented.

    Guys, anyone tried to implement it through ScrollViewer and gesture handling?

  11. Eugeniy
    Eugeniy avatar
    60 posts
    Member since:
    Feb 2011

    Posted 10 Oct 2015 Link to this post

    I've tried some other solutions:
    1)Infragistics - does not support touch
    2)Syncfusion - demo does not event work
    3)ComponentOne - touch does not work properly
    Finnaly I did it by myself - with ScrollViewer and items render transform - see pic. (here in my comment you can see app screens with out of carousel http://www.telerik.com/forums/empty-items?actionMode=replyThread )
    pm me if you want to know how to easily do it

     

  12. Yoan
    Admin
    Yoan avatar
    1070 posts

    Posted 13 Oct 2015 Link to this post

    Hello Eugeniy,

    The touch support for our RadCarousel was introduced with Q2 2015 version. You can try it on our WPF demos.

    As as side note -  we are currently working on touch improvements for all our controls along with introducing a Touch API that will allow custom touch interaction implementations.

    Regards,
    Yoan
    Telerik
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  13. Eugeniy
    Eugeniy avatar
    60 posts
    Member since:
    Feb 2011

    Posted 23 Jun in reply to Yoan Link to this post

    Yoan said:Hello Eugeniy,

    The touch support for our RadCarousel was introduced with Q2 2015 version. You can try it on our WPF demos.

    As as side note -  we are currently working on touch improvements for all our controls along with introducing a Touch API that will allow custom touch interaction implementations.

    Regards,
    Yoan
    Telerik
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    I uploaded a video (1 - RadCarousel, 2 - Custom solution):

    https://1drv.ms/v/s!Ap7l9-SeF92fjolG7VWwhV0ysaSKdA

    RadCarousel behaves unpredictably from user perspective.  I'm sorry, I don't know what you mean saying "touch support", but It has nothing related to touch support. I put my finger on screen - it scrolls immediately to the item, I swipe - nothing, I release the screen - it scrolls unpredictably to another item. 50% of cases that is the last item I swiped to, but not always.

  14. Yoan
    Admin
    Yoan avatar
    1070 posts

    Posted 28 Jun Link to this post

    Hello Eugeniy,

    You can use the swipe gesture in order to scroll the items of the Carousel. However, items movement depends on the current Path which is used. In this specific example, you can control the movement of the items by modifying the path fraction. You will get a similar behavior when using the mouse.

    You can check the "RadCarousel" example, where the default Path is not changed and the swipe is working as expected. You can also use the Tap gesture in order to select an item.

    Regards,
    Yoan
    Telerik
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