how to get mobile number automatically in android application resistration like whatsapp -


how can mobile number automatically after user installs android application. when registered in application without entering manually. using following code.

telephonymanager manager =(telephonymanager)getsystemservice(context.telephony_service); string phonenumber = manager.getline1number();

make sure have permission read_phone_state in manifest

also please here more information!


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