question: @ SuppressLint ( "InlinedApi" ) public static Map < Integer , String > TECHNOLOGY_MAP ( ) { Map < Integer , String > result = new HashMap < > ( ) ; result . put ( TelephonyManager . NETWORK_TYPE_UNKNOWN , "NA" ) ; result . put ( TelephonyManager . NETWORK_TYPE_GPRS , "GSM" ) ; result . put ( TelephonyManager . NETWORK_TYPE_EDGE , "EDGE" ) ; result . put ( TelephonyManager . NETWORK_TYPE_UMTS , "UMTS" ) ; result . put ( TelephonyManager . NETWORK_TYPE_CDMA , "CDMA" ) ; result . put ( TelephonyManager . NETWORK_TYPE_EVDO_0 , "EDVO_0" ) ; result . put ( TelephonyManager . NETWORK_TYPE_EVDO_A , "EDVO_A" ) ; result . put ( TelephonyManager . NETWORK_TYPE_1xRTT , "1xRTT" ) ; result . put ( TelephonyManager . NETWORK_TYPE_HSDPA , "HSDPA" ) ; result . put ( TelephonyManager . NETWORK_TYPE_HSUPA , "HSUPA" ) ; result . put ( TelephonyManager . NETWORK_TYPE_HSPA , "HSPA" ) ; result . put ( TelephonyManager . NETWORK_TYPE_IDEN , "IDEN" ) ; if ( Build . VERSION . SDK_INT >= Build . VERSION_CODES . GINGERBREAD ) { result . put ( TelephonyManager . NETWORK_TYPE_EVDO_B , "EDV0_B" ) ; } if ( Build . VERSION . SDK_INT >= Build . VERSION_CODES . HONEYCOMB ) { result . put ( TelephonyManager . NETWORK_TYPE_LTE , "LTE" ) ; result . put ( TelephonyManager . NETWORK_TYPE_EHRPD , "eHRPD" ) ; } if ( Build . VERSION . SDK_INT >= Build . VERSION_CODES . HONEYCOMB_MR2 ) { result . put ( TelephonyManager . NETWORK_TYPE_HSPAP , "HSPA+" ) ; } return Collections . unmodifiableMap ( result ) ; }
target:  Returns human readable technology name