If you want a more complete and robust solution, I've compiled every possible solution I could found in a single gist. For more info on that topic, see Best practices for unique identifiers.īuild.SERIAL can be empty or sometimes return a different value ( proof 1, proof 2) than what you can see in your device's settings. Alternatively you could use ANDROID_ID which is a 8 byte long hex string unique to the device, user and (only Android 8+) app installation. You could just generate a UUID.randomUUID().toString() and save it the first time it needs to be accessed in e.g.
If you just require a unique identifier, it's best to avoid using hardware identifiers as Google continuously tries to make it harder to access them for privacy reasons. See the Android Q announcement from Google.īest Practice for Unique Device Identifier Adobe Acrobat Pro Dc 2020 Serial Number Generator Online Adobe Acrobat Pro DC 2020.009.
This means most apps won't be able to uses this feature. In the Search programs and files box (or the Run window), type 2020 and press Enter. Since Android Q using Build.getSerial() gets a bit more complicated by requiring:Ī_PRIVILEGED_PHONE_STATE (which can only be acquired by system apps), or for the calling package to be the device or profile owner and have the READ_PHONE_STATE permission. Which requires the dangerous permission _PHONE_STATE. On Android 8 (SDK 26) and above, this field will return UNKNOWN and must be accessed with: Build.getSerial() Until Android 7.1 you will get it with: Build.SERIAL
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