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是否可以检测 android 设备支持的频率/频段。我只想检测该设备是否支持 3G/4G 网络。

我已经使用连接管理器和网络信息打印了详细的网络信息。

02-27 15:14:11.122: D/3G4G(20923): Type : 0
02-27 15:14:11.122: D/3G4G(20923): Type Name : mobile
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): Extra Info : null
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 1
02-27 15:14:11.122: D/3G4G(20923): Type Name : WIFI
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : 
02-27 15:14:11.122: D/3G4G(20923): SubType Name : 
02-27 15:14:11.122: D/3G4G(20923): Extra Info : "Mac Abdul"
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 2
02-27 15:14:11.122: D/3G4G(20923): Type Name : mobile_mms
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): Extra Info : null
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 3
02-27 15:14:11.122: D/3G4G(20923): Type Name : mobile_supl
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): Extra Info : null
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 4
02-27 15:14:11.122: D/3G4G(20923): Type Name : mobile_dun
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): Extra Info : null
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 5
02-27 15:14:11.122: D/3G4G(20923): Type Name : mobile_hipri
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): Extra Info : null
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 7
02-27 15:14:11.122: D/3G4G(20923): Type Name : BLUETOOTH_TETHER
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : 
02-27 15:14:11.122: D/3G4G(20923): SubType Name : 
02-27 15:14:11.122: D/3G4G(20923): Extra Info : null
02-27 15:14:11.122: D/3G4G(20923): ______________________
02-27 15:14:11.122: D/3G4G(20923): Type : 10
02-27 15:14:11.122: D/3G4G(20923): Type Name : mobile_fota
02-27 15:14:11.122: D/3G4G(20923): Sub Type :0
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.122: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.132: D/3G4G(20923): Extra Info : null
02-27 15:14:11.132: D/3G4G(20923): ______________________
02-27 15:14:11.132: D/3G4G(20923): Type : 11
02-27 15:14:11.132: D/3G4G(20923): Type Name : mobile_ims
02-27 15:14:11.132: D/3G4G(20923): Sub Type :0
02-27 15:14:11.132: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.132: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.132: D/3G4G(20923): Extra Info : null
02-27 15:14:11.132: D/3G4G(20923): ______________________
02-27 15:14:11.132: D/3G4G(20923): Type : 12
02-27 15:14:11.132: D/3G4G(20923): Type Name : mobile_cbs
02-27 15:14:11.132: D/3G4G(20923): Sub Type :0
02-27 15:14:11.132: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.132: D/3G4G(20923): SubType Name : UNKNOWN
02-27 15:14:11.132: D/3G4G(20923): Extra Info : null

“mobile_hipri”是否意味着设备支持3G网络？如何检测该设备是否支持 4G 网络。

编辑：我使用以下代码打印出此信息

ConnectivityManager cm = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
       NetworkInfo[] info = cm.getAllNetworkInfo();
       for(int i=0; i <info.length-1; i++){
           Log.d("3G4G", "Type : " + info[i].getType()+"");
           Log.d("3G4G", "Type Name : " + info[i].getTypeName());
           Log.d("3G4G", "Sub Type :" +info[i].getSubtype()+"");
           Log.d("3G4G", "SubType Name : " + info[i].getSubtypeName());
           Log.d("3G4G", "SubType Name : " + info[i].getSubtypeName());
           Log.d("3G4G", "Extra Info : " + info[i].getExtraInfo());
           Log.d("3G4G","______________________");
       }

我需要知道设备支持的工作频率（GSM 850 / 900 / 1800 / 1900 或任何其他）。如果有其他方法可以找到该设备支持 3G/4G 网络，请告知。

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