public static String imsi() {
String imsi = null;
try {
imsi =
((TelephonyManager) ContextManager.systemService(Context.TELEPHONY_SERVICE)) //
.getSubscriberId();
} catch (Exception e) {
}
return TextHelper.ensureNotNull(imsi);
}
public static String wifiMac() {
String mac = null;
try {
mac =
((WifiManager) ContextManager.systemService(Context.WIFI_SERVICE)) //
.getConnectionInfo()
.getMacAddress();
} catch (Exception e) {
}
return TextHelper.ensureNotNull(mac);
}
/**
* A 64-bit number (as a hex string) that is randomly generated on the device's first boot and
* should remain constant for the lifetime of the device. (The value may change if a factory reset
* is performed on the device.)
*/
public static String androidId() {
return Secure.getString(ContextManager.contentResolver(), Secure.ANDROID_ID);
}