Android Question Data on Phone & Tablet

[peggjones]

I was wondering if anyone could suggest a neat solution to the following:

I have the same database on a phone and on a tablet.

I want to maintain the database on both.

Every so often I will synchronise them

But I only want one of them to be enabled at any one time, to avoid duplication and overwritting.

I am thinking of sending an Email to myself indicating that the device is the "active" one then accessing the email with code and using this to set a flag.

I would be so grateful to anyone who could come up with a better solution.

 

[DonManfred]

Host your Database on a Server/VPS and setup jRDC2 on it to communicate from all devices with jRDC2.

 

[peggjones]

Host your Database on a Server/VPS and setup jRDC2 on it to communicate from all devices with jRDC2.

Thanks but doing that is beyond my capabilities. I suppose what I'm looking for is any easy way to send data (as little as 1 byte would do) from one device to another. This is only for my personal use and would only involve two devices.

 

[Brian Dean]

I want to maintain the database on both.

I do this a lot, both for my private apps and for ones that I have published. I use FTP. FTP is almost as simple to use as writing a file to a folder - you hardly know that you are using the internet. True, you need some web-space, but there are places where you can get a couple of hundred megabytes of free space in 30 seconds - try here. I would save the whole database so that you can download the latest version everytime you open your app

 

[aeric]

I never use MQTT but I think it is a solution.

[IoT] MQTT Protocol

What is MQTT? "MQTT is a Client Server publish/subscribe messaging transport protocol. It is light weight, open, simple, and designed so as to be easy to implement. These characteristics make it ideal for use in many situations, including constrained environments such as for communication in...

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