Android 获取电信4G基站信息问题求大神解答

Question

TelephonyManager manager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
    if (type == TelephonyManager.NETWORK_TYPE_CDMA        // 电信cdma网   
            || type == TelephonyManager.NETWORK_TYPE_1xRTT   
            || type == TelephonyManager.NETWORK_TYPE_EVDO_0   
            || type == TelephonyManager.NETWORK_TYPE_EVDO_A
            || type == TelephonyManager.NETWORK_TYPE_LTE )   {
       CdmaCellLocation cdma = (CdmaCellLocation) manager.getCellLocation();      
        if (cdma == null)   
        {   
            return null;   
        }
       int  lac = cdma.getNetworkId();   
       int  cid = cdma.getBaseStationId(); 
                }
                获取电信基站信息代码如上，2G,3G，都是好的，但切换到4G,程序就崩溃

Answer 1

请查看程序崩溃的日志。4G是LTE。