Home/ Questions/Q 4032810
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-20T11:46:05+00:00

I have to implement a application which displays a grid view of thubmnails each

  • 0

I have to implement a application which displays a grid view of thubmnails each of which is a clickable object. The grid view will display 2 images( which i suppose can be a uiview). And 4 rows per page.

The use should be able to smoothly scroll through the image grid view. The images for the thumbnails will be fetched from the url i get from server. However assuming i have the urls in my model how can i implement this feature to display them.

Few problems i have encountered are:

  1. All the images(UIviews) cant be loaded due to memory constraints. Hence paging can be enabled.

  2. On implemented paging using uiscrollview delegate the ui becomes irresponsive for some time. I am downloading the images in a NSOperation queue and posting the image on mainthread for displaying on screen.

I want the scrolling to be very smooth without jerky feature.
How can i implement this?

TIA,
Praveen S

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    I was having a similar problem.
    What i did was at an instance i kept only 3 pages(or screens with 4 rows as you said) in the memory and cleared remaining all.
    If suppose there are 3 screens s1, s2, s3. And the user is viewing s2. Whenever he scrolls to s3 i will remove s1 and load a new page s4. So that at any point of time there will be 3 screens only.

    And the users will have a better experience. And also less memory will be occupied.

    • 0