CODEWITHSUNDEEP
iospaginationscrollviewcore-plot
Pradip
Pradip

Reputation: 707

Pagination for line chart in iOS sdk?

I am using core plot to draw line chart which is showing weekly details of user.

Now what I want is, to swipe next week of graph like scroll view paging functionality (we can also see it on iPhone home screen)

Please refer below image for more details.

enter image description here

Please share any solution or any logic to implement above task.

Upvotes: 0

Views: 838

Answers (1)

Rinat Khanov
Rinat Khanov

Reputation: 1576

You can implement this by placing your graph view inside UIScrollView and allowing horizontal scroll. You also may want to enable UIScrollView's pagination feature to achieve "iPhone home screen"-like effect that you're describing.

This part is pretty straightforward, but you may find this StackOverflow answer useful.

However, your performance may suffer if your graph doesn't have reasonable horizontal bounds — i.e if width of your graph is too big to render at one time. You need to test this specifically with your set of data.

If this is indeed the case, one solution is to create separate "reusable" graph views for each week (like reusable UITableViewCells) and render them on-the-fly when user scrolls to the left or to the right. In other words, only render current, next & previous weeks' graphs and update this each time the user flips the page.

P.S. This doesn't relate to your question directly, but you may also want to take a look at JBChartView by Jawbone. I prefer JBChartView over Core Plot because it's really well-written library for creating graphs that you can dig into and customise however you want (unlike from Core Plot which is basically "a black box").

Upvotes: 0

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