Send variable value to another device


On my device I have an app with some variable values and now I want to use these values on another variable. But…there is no internet connection so I can not use database and send and read these values.

Is any solution for my problem?

Maybe Bluetooth or NFC?

I don’t if these devices have NFC. Bluetooth is ok, but which plugin should I use? This: is not for Android to Android connection (according to documentation, but maybe it works?)

I have never done this before, so you have to try it and research for Plugins

Another option is to have device A display the data as a QR code and scan it using device B’s camera.

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wow, that could be!!