Unique Device Identifier

[ST.RE]

Is it possible to identify a device? I need an unique device id for my app to identify a device over multiple apps.

Thanks 

[Shai Almog]

There is a UDID getter in Display but it isn't guaranteed on all devices.
Preferences.get("DeviceId__$", (long)-1);

Should return a unique value while running on a device as long as you don't disable device registration. However, if registration failed this will return -1.

[ST.RE]

Hi Shai,

i tried three different things:

Display.getInstance().getMsisdn();  => is null on my iPhone (i don't know the result on Android)

Display.getInstance().getUdid(); => is a device id on my iPhone but null on an Android Device

Preferences.get("DeviceId__$", (long)-1); => is null on my iPhone (i don't know the result on Android). I don't disabled the device registration (where can i do that!?)

What options do i have for a working device id detection?

Thanks

[Mikhail Zemlyanukha]

Why just don't use UDID when MSISDN is empty?

By the way, on Android devices without cellular network MSISDN may be
empty too. As far as I know, on Android devices there is no regular
(legal API) way to find unique ID.

Mike

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[Shai Almog]

I checked and it turns out we only keep our device id with pro users (for push support). I looked into fixing this for all users but its a bit tricky to do right now. Feel free to file an RFE on me and I will try to create something more robust.

[Mikhail Zemlyanukha]

Do you generate device id on server? Looks like the only possible solution...

[Shai Almog]

Yes, we generate in the server.