Question

我试图在Android工作室中获取连接到手机的手机信号塔的信息。这是我的代码：

    telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);

    List<CellInfo> cellInfos = telephonyManager.getAllCellInfo();
    for (CellInfo cellInfo:cellInfos){
        if (cellInfo instanceof CellInfoGsm){
            textViewCellular.append("\n\nType: GSM");
            textViewCellular.append("\nCell Identity:\n\tCID:" + ((CellInfoGsm) cellInfo).getCellIdentity().getCid());
            textViewCellular.append("\n\tLAC:" + ((CellInfoGsm) cellInfo).getCellIdentity().getLac());
            textViewCellular.append("\n\tMCC:" + ((CellInfoGsm) cellInfo).getCellIdentity().getMcc());
            textViewCellular.append("\n\tMNC:" + ((CellInfoGsm) cellInfo).getCellIdentity().getMnc());
            textViewCellular.append("\nSignal Strength:" + ((CellInfoGsm) cellInfo).getCellSignalStrength().getDbm() + "dBm");
        }
    }

但是，在我的手机上运行代码会给我相同的价值：CID = LAC = MCC = MNC = Signal strength = 2147483647 对此有任何解释吗？

Android：CellInfo为我提供了相同的CID，MNC，MCC，LAC和信号强度值

0 个答案: