Network type unknown on Android Nexus 7 tablet -
i made simple application shows network type on device. have nexus 7 inch tablet , value shown unknown. know nexus 7 not gsm device i.e doesn't need sim card operate. internet wifi router means there must network type.
why giving me value of unknown?
i checked code cannot bug on emulated nexus 7 gives utms type. used this page reference.
telephonymanager
used check cellular connectivity only. device not using (since not have sim card), unknown return value.
if want check wifi connection:
connectivitymanager connmanager = (connectivitymanager) getsystemservice(connectivity_service); networkinfo info = connmanager.getnetworkinfo(connectivitymanager.type_wifi); if (info != null && info.isconnected()) { // device using wifi connection }
or, give telephonymanager , use connectionmanager exclusively:
networkinfo info = connmanager.getactivenetworkinfo(); if (info != null && info.isconnected()) { // device using connection }
above code check type of connectivity, wifi or cellular.
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