Not able to fetch data from server in ionic 3 android app after minimizing app

If user doesn’t kill the app, instead he just pressed home button then app goes in background. And when user launch the app then data is not getting updated cause no api is being called.

What i can do if i want to update the data while launching the app from recent apps section. Where ngOnInit () and ionViewWillEnter () is not getting called. What else i can use to make it work.

I have tried using ionViewWillEnter (), ngOnInit ().