該方法cellLocationChanged未定義的類型活動

我想顯示的信號強度和單元格id和lac。我爲SIGNAL_STRENGTHS和CELL_LOCATION創建了一個監聽器。在UMTS（其堆棧顯示-1）連接時，我仍然無法獲得適當的值，我無法顯示cell id和lac。我在偵聽器類中添加了另一個方法來偵聽位置變化。我不知道它是否正確。 onCellLocationChanged（）方法屬於PhoneStateListener，所以我爲什麼要這樣做？感謝該方法cellLocationChanged未定義的類型活動

package com.example.gsmdata; 

import android.app.Activity; 
import android.content.Context; 
import android.os.Bundle; 
import android.widget.TextView; 
import android.telephony.TelephonyManager; 
import android.telephony.SignalStrength; 
import android.telephony.gsm.GsmCellLocation; 
import android.telephony.cdma.CdmaCellLocation; 
import android.telephony.PhoneStateListener; 

public class GsmDataActivity extends Activity { 
/** Called when the activity is first created. */ 


int network_type; 
int signal_strength; 
int cid; 
int Lac; 
int bts; 

TextView network, signal, ci, lac; 
TelephonyManager phone ; 
GsmCellLocation CellId; 
CdmaCellLocation baseStation; 
SignalStrength phone_sig; 
signalStateListener listenphone; 



@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main);  


    network = (TextView) findViewById(R.id.tvNetwork); 
    signal =(TextView) findViewById(R.id.tvSignalValue); 
    ci = (TextView) findViewById(R.id.tvCiValue); 
    lac = (TextView) findViewById(R.id.tvLacValue); 

    /* Update Listener and start it */ 

    phone = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); 
    listenphone= new signalStateListener(); 
    phone.listen(listenphone, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS | PhoneStateListener.LISTEN_CELL_LOCATION); 

    network_type = phone.getNetworkType(); 

    switch (network_type){   
    case 1: network.setText("GPRS");break; 
    case 3: network.setText("UMTS");break; 
    case 4: network.setText("CDMA");break; 
    case 8: network.setText("HSDPA");break; 
    case 9: network.setText("HSUPA");break; 
    case 10: network.setText("HSPA");break; 
    case 13: network.setText("LTE");break; 
    default: network.setText("UNKNOWN");break; 

    } 


} 
@Override 
protected void onPause() 
{ 
    super.onPause(); 
    phone.listen(listenphone, PhoneStateListener.LISTEN_NONE); 


} 
@Override 
protected void onResume() 
{ 
    super.onResume(); 
    phone.listen(listenphone, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS |PhoneStateListener.LISTEN_CELL_LOCATION); 

    network_type = phone.getNetworkType(); 

    switch (network_type){   
    case 1: network.setText("GPRS");break; 
    case 3: network.setText("UMTS");break; 
    case 4: network.setText("CDMA");break; 
    case 8: network.setText("HSDPA");break; 
    case 9: network.setText("HSUPA");break; 
    case 10: network.setText("HSPA");break; 
    case 13: network.setText("LTE");break; 
    default: network.setText("UNKNOWN");break; 

    } 


} 

private class signalStateListener extends PhoneStateListener{ 

    @Override 

    public void onSignalStrengthsChanged(SignalStrength phone_sig){ 
    super.onSignalStrengthsChanged(phone_sig); 


    if (network_type==1){ 
     signal_strength = phone_sig.getGsmSignalStrength(); 
     signal.setText(-1*(113-(2*signal_strength)) + "dBm"); 

    } 
    else if(network_type==0){ 
     signal.setText("Unknown Network type"); 
    } 
    else{ 
     signal_strength= phone_sig.getCdmaDbm(); 
     signal.setText(signal_strength + "dBm");  
    } 

    } 
    } 


    public void onCellLocationChanged(GsmCellLocation CellId){ 
     super.onCellLocationChanged(CellId); 

     ci.setText(CellId.getCid()); 
     lac.setText(CellId.getLac()); 
     /*bts= baseStation.getBaseStationId(); 
     Lac=cellId.getLac();*/ 

    } 


}

來源

2011-12-30 BitWhyz

我發現我的代碼中缺少了什麼。

CellId=(GsmCellLocation) phone.getCellLocation();

，如果我加入這行代碼，一切的工作，我可以看到小區ID和基站

來源

2012-01-07 13:40:18 BitWhyz

其與LTE和UMTS類型的網絡爲什麼會這樣，什麼工作是解決方案的LAC – Ateeq 2013-07-30 08:22:31

@Ateeq http://developer.android.com/reference/android/telephony/PhoneStateListener.html#onCellInfoChanged（java.util.List ） – black 2014-01-20 12:01:34

該方法cellLocationChanged未定義的類型活動

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