Background App Refresh implementation samples

Support
1

Has anyone tried to implement background fetch which can be used to regularly poll server for changes or updates.

Here is the apple official document
https://developer.apple.com/documentation/uikit/core_app/managing_your_app_s_life_cycle/preparing_your_app_to_run_in_the_background/updating_your_app_with_background_app_refresh

Any java method implementation of the above mentioned code performFetchWithCompletionHandler would help.

Regards,
Sachin

2

It is a applicationPerformFetchWithCompletionHandler method in UIApplicationDelegate, which is implemented by your main application class.

3

Update 1: I’m stopping the background task once im done with my work

I was able to implement the method in UIApplicationDelegate however im not able to achieve consistent polling time. Do i need to stop the background service upon completion?

@Override
@Selector("application:performFetchWithCompletionHandler:")
public void applicationPerformFetchWithCompletionHandler(
        UIApplication application,
        @ObjCBlock(name = "call_applicationPerformFetchWithCompletionHandler") UIApplicationDelegate.Block_applicationPerformFetchWithCompletionHandler completionHandler){
//Do the work, not ending background task
}