background-fetch | API proposal for background downloading/uploading | HTTP library

I'm developing an App in Swift 5 that connects to a wereable device that measure body information (temperature, heart rate, etc.)

For measure this information, I have to write a Data object in one characteristic of the device (and recieve the information in other characteristic with notifications activated), and now i have to measure it every 30 minutes, so i have to create a timer with repeata every 30 minutes to execute that "write" in the BLE characteristic. (All the options in Capabilities are already activated - bluetooth-central, bluetooth-peripheral, background-processing, background-fetch)

I've read a lot of topics in Stackoverflow and there are people that says that you can't write to BLE in background and other that say that you can.

Before to implement all the posibilities i've read: ¿It's possbile to execute every 30 minutos a task to connect to a device, set notification to true to one characteristic, and write a Data object in one characteristic in Background Mode?

If the response is "Yes", is there any code that I have to implement apart from the corresponding bluetooth methods that already work in the foreground?

I've not attach my BLEManager class (centralManager) because is the "standard" from the Apple Documentation, but if you need, ask me and I'll attatch it.

Thank u all!

I'm building an Ionic application, using cordova, in Azure pipelines. Everything is working fine for my simple application, but when I try to run it on an application that has other cordova dependencies I'm getting the errors below during the Xcode archive step. I've added all my current troubleshooting steps and am quite stumped at this point.

I have been trying to find out how to fix the following error when trying to run my Jest test using React Native:

FAIL tests/App-test.js ● Test suite failed to run

...

I'm using react-native-background-fetch to receive app refresh events and have been struggling to dispatch an action (that fetches data) when it's triggered. I'm able to do this outside of redux but not when I dispatch the action.

EDIT: the solution for me was to use my previous PodFile before upgrading, ios app is working now. see the PodFile that work for me bellow

I upgraded an RN app to 0.59.1 (it was at 0.57.8) using react-native upgrade, android version is working but for the ios version i'm stuck with pod install which trows this error:

[!] No podspec found for `FBLazyVector` in `../node_modules/react-native/Libraries/FBLazyVector almost all react-native dependencies are giving similar errors, i know that by commenting pods one by one and running pod install

here is my Podfile:

I've applied the config.xml updates they reccommend, but I'm still getting a reject message from Apple for using the UIWebView. Any suggestions?

I have iOS 5.1.1 and CLI 9.0.1

cordova-background-geolocation-lt 3.0.8 "BackgroundGeolocation" cordova-launch-review 3.1.1 "Launch Review" cordova-plugin-background-fetch 5.5.0 "CDVBackgroundFetch" cordova-plugin-calendar 5.1.5 "Calendar" cordova-plugin-camera 4.1.0 "Camera" cordova-plugin-cocoalumberjack 0.0.4 "CocoaLumberjack" cordova-plugin-contacts 3.0.1 "Contacts" cordova-plugin-device 2.0.3 "Device" cordova-plugin-file 6.0.1 "File" cordova-plugin-file-transfer 1.7.1 "File Transfer" cordova-plugin-geolocation 4.0.2 "Geolocation" cordova-plugin-globalization 1.11.0 "Globalization" cordova-plugin-inappbrowser 3.2.0 "InAppBrowser" cordova-plugin-whitelist 1.3.4 "Whitelist" cordova-plugin-wkwebview-engine 1.2.1 "Cordova WKWebView Engine"

I am trying to run a unstoppable background service in react native which will continuously listen for messages via Socket.io from server.

For this I found several solutions with several problems

1. Use FCM

   The problem with method is that first I have to listen for FCM event than connect to my server and get the data(Messages + images + Videos). And I don't want to use firebase for my app as its expensive and don't want to store my user data (Mainly images) and handle user auth.

2. Use react-native-background-fetch

   This thing is pretty good but it only allow to run single job every 5 minutes and if your service is killed by android than you are gone

3. Use Headless JS

   To be honest I cannot understand its documentation

Please tell me what to s I am confused and amazed that there is no proper way to handle this TIA regards

I'm building an ionic app with capacitor. I'm hoping that my app can perform background tasks after termination. If i'm reading the documentation correctly this should be possible by setting

I'm working on background processes and currently using cordova's background fetch plugin in ionic. I want to run my background task even when I terminate my app. It works in iOS but the documentation says it also supports android. According to the documentation, in order to make enableHeadless: true to work I need to write a java code and can place the BackgroundFetchHeadlessTask.java file anywhere in my app. After creating BackgroundFetchHeadlessTask.java file I'm still getting the default implementation for headless task.

I have also tried cordova-plugin-background-mode but it stops the background process when I terminate my app. cordova-plugin-background-fetch meets my all requirements so that's why I'm sticking with it for now. I have currently placed my java file in:

myProjectFolder/www/src/android/BackgroundFetchHeadlessTask.java

Here's my code: