如何在android中獲取單元格ID和LAC？

Question

其實我正在尋找一種方法來獲取單元格參數，如單元ID LAC RSSI等，你可以看到下面的代碼，我使用，但它不工作，我不知道爲什麼。

public final class MainActivity extends AppCompatActivity { 

    PhoneStateListener phoneStateListener; 
    TelephonyManager telephonyManager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE); 

    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 


     this.phoneStateListener = setupPhoneStateListener(); 
     this.telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_CELL_LOCATION); 
     this.telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_DATA_CONNECTION_STATE); 
     this.telephonyManager.listen(phoneStateListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS); 

     // This part is used to listen for properties of the neighboring cells 
     List<NeighboringCellInfo> neighboringCellInfos = this.telephonyManager.getNeighboringCellInfo(); 
     for (NeighboringCellInfo neighboringCellInfo : neighboringCellInfos) { 
      neighboringCellInfo.getCid(); 
      neighboringCellInfo.getLac(); 
      neighboringCellInfo.getPsc(); 
      neighboringCellInfo.getNetworkType(); 
      neighboringCellInfo.getRssi(); 

      Log.d("cellp", neighboringCellInfo.toString()); 
     } 
    } 
    public PhoneStateListener setupPhoneStateListener() { 
     return new PhoneStateListener() { 

      /** Callback invoked when device cell location changes. */ 
      @SuppressLint("NewApi") 
      public void onCellLocationChanged(CellLocation location) 
      { 
       GsmCellLocation gsmCellLocation = (GsmCellLocation) location; 
       gsmCellLocation.getCid(); 
       gsmCellLocation.getLac(); 
       gsmCellLocation.getPsc(); 

       Log.d("cellp", "registered: "+gsmCellLocation.toString()); 
      } 

      /** invoked when data connection state changes (only way to get the network type) */ 
      public void onDataConnectionStateChanged(int state, int networkType) 
      { 
       Log.d("cellp", "registered: "+networkType); 
      } 

      /** Callback invoked when network signal strengths changes. */ 
      public void onSignalStrengthsChanged(SignalStrength signalStrength) 
      { 
       Log.d("cellp", "registered: "+signalStrength.getGsmSignalStrength()); 
      } 

     }; 
    } 
} 

Answer 1

獲得Cell ID：

myCellId= cellLocation.getCid() % 0xffff;