background timer not running in ios 12.3 version

[SwathyPA]

in 12.3 version ios timer is not running in background

[skantus]

Hi @SwathyPA I'm using iOS 12.3.1 and works well.

[SwathyPA]

can I get a basic code of yours

[skantus]

Hi @SwathyPA, you can try in 2 ways:

Same code:

BackgroundTimer.runBackgroundTimer(() => { 
  // Your scheduled task.
}, 
3000);

BackgroundTimer.stopBackgroundTimer(); //after this call all code on background stop run.`

Selecting the platform:

 startDownloadsInBackground = () => {
    Platform.select({
      ios: () => {
        BackgroundTimer.start();
        // Your scheduled task.
      },
      android: () => {
        this.backgroundTimer = BackgroundTimer.setTimeout(() => {
        // Your scheduled task.
        }, 0);
      }
    })();
  };

  stopDownloadsInBackground = () => {
    Platform.select({
      ios: () => {
        BackgroundTimer.stop();
      },
      android: () => {
        BackgroundTimer.clearTimeout(this.backgroundTimer);
      }
    })();
  };

Note:

For security reasons the task is blocked after 3 minutes, I hope this will fixed.

https://github.com/ocetnik/react-native-background-timer/issues/125

I hope it helps!

[alexfinnarn]

For security reasons the task is blocked after 3 minutes...

What does that mean @skantus? Is that an Android thing or something limited in this codebase?

If I'm understanding right, if I set a timer and want to do something exactly 4 minutes later, then that is not possible?

[skantus]

Hi, @alexfinnarn this is a similar issue about background task to a better understanding:

https://github.com/EkoLabs/react-native-background-downloader/issues/42#issuecomment-527653821

[eyale]

Hi @SwathyPA I'm using iOS 12.3.1 and works well.

Could you please share your working code, please? My task is to send my position every 15 minutes