CODEWITHSUNDEEP
iosobjective-cswift
Hassy
Hassy

Reputation: 5208

iOS - How to handle large amount of data from webservice

i am getting large amount of data from web service. If the amount of records it return is more than 1500 or 2000 the memory overflows and the app crashes. I don't need to save the data locally, just have to present the data to the user. How can i manage it not to crash and display whole of the data?

Upvotes: 2

Views: 1120

Answers (2)

lostInTransit
lostInTransit

Reputation: 70997

The best way to go ahead with this would be to change the web service to accept a page param and return paginated results. To make it look seamless in a tableview, you can add infinite scrolling - i.e. if the user reaches row <last-10>, send request for the next set of records and load them in the table view.

But even with this, I am assuming you will eventually face memory issues if you persist all your 2K records (your data array) in memory. So some memory management will be needed there as well.

Upvotes: 3

Dharmbir Singh
Dharmbir Singh

Reputation: 17535

You can use paging in table view and also use paging for your webservice.. You can show limited data at a time and if you scroll it then show next data. Table view help you to reuse your cell and show your 2000 records

For example

http://www.oodlestechnologies.com/blogs/Pagination-in-UITableview

Upvotes: 3

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