I have a react native application which is doing some task and sending the data to the backend. I want this task to keep running even if the app is closed, as in the app should keep running on the background of device.

NOTE: this app will only run in android

CodePudding user response：

You can make use of this library https://github.com/transistorsoft/react-native-background-fetch. There's good documentation about how to set it up & what you have to do in order to ensure that the app will execute tasks even when in background/killed. This is a little bit of a grey area and background tasks are usually not 100% reliable, but this library provides good solution.

CodePudding user response：

It's always good to use native functionality. If you want to execute JavaScript tasks in background. Then implement it using Headless JS https://reactnative.dev/docs/headless-js-android