java - Are UUID's in Android specific to application within the device? -

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looking in the web answers, sort of confused id uuid's unique service within device. want know if application on particular device can generate uuid during installation same in other devices app installed?

so search can performed using uuid find how many devices using particular application using bluetooth. or there other way using uuid.( fetchuuidswithsdp ())

i new android programming. kind if being naive..

uuids generated random numbers or other algorithm intended guarantee no uuid ever generated twice.

if want multiple instances of application use same uuid, you'll have generate in advance , include in application.

there's no reason why can't this, , web search "uuid generator" turn several sites provide one.


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