Android getAllCellInfo（）返回空列表以表示敬意9n

getAllCellInfo（）

在

honor 9n

中返回空列表。我用于获取手机id和位置区号。那么我该怎么做才能得到手机号和位置区号呢

TelephonyManager tel = (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);                                                                        

    if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
            ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }                                                  

    CellLocation gsmCellLocation1 = tel.getCellLocation();
    if(gsmCellLocation1!=null){
        Log.e("gsmCellLocation1: ", String.valueOf(gsmCellLocation1));
    }else{
        Log.e("gsmCellLocation1: ", "nul 1");

    }                      

    GsmCellLocation location33 = (GsmCellLocation) tel.getCellLocation();
    if(location33!=null){
        Log.e("location33: ", String.valueOf(location33));
    }else{
        Log.e("location33: ", "nul 33");

    }

    final List<CellInfo> gsmCellLocation2 = tel.getAllCellInfo();
    if(gsmCellLocation2!=null){
        Log.e("gsmCellLocation2: ", String.valueOf(gsmCellLocation2));
    }else{
        Log.e("gsmCellLocation2: ", "nul 2");

    }

我还尝试了

getCellLocation（）

。当

GPS

开启时，我得到了手机id和位置区号。当

GPS

处于关闭状态时，我想获取手机id和位置区号

TelephonyManager tel = (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);                                                                        

    if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
            ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }                                                  

    CellLocation gsmCellLocation1 = tel.getCellLocation();
    if(gsmCellLocation1!=null){
        Log.e("gsmCellLocation1: ", String.valueOf(gsmCellLocation1));
    }else{
        Log.e("gsmCellLocation1: ", "nul 1");

    }                      

    GsmCellLocation location33 = (GsmCellLocation) tel.getCellLocation();
    if(location33!=null){
        Log.e("location33: ", String.valueOf(location33));
    }else{
        Log.e("location33: ", "nul 33");

    }

    final List<CellInfo> gsmCellLocation2 = tel.getAllCellInfo();
    if(gsmCellLocation2!=null){
        Log.e("gsmCellLocation2: ", String.valueOf(gsmCellLocation2));
    }else{
        Log.e("gsmCellLocation2: ", "nul 2");

    }

TelephonyManager tel=（TelephonyManager）getContext（）.getSystemService（Context.TELEPHONY_SERVICE）；
if（ActivityCompat.checkSelfPermission（getContext（），Manifest.permission.ACCESS\u FINE\u LOCATION）！=PackageManager.permission\u已授予&&
ActivityCompat.checkSelfPermission（getContext（）、Manifest.permission.ACCESS\u\u位置）！=PackageManager.permission\u已授予）{
考虑到呼叫
//ActivityCompat#请求权限
//在此处请求缺少的权限，然后覆盖
//public void onRequestPermissionsResult（int-requestCode，字符串[]权限，
//int[]格兰特结果）
//处理用户授予权限的情况。请参阅文档
//对于ActivityCompat，请请求权限以获取更多详细信息。
回来
}                                                  
CellLocation gsmCellLocation1=tel.getCellLocation（）；
如果（gsmCellLocation1！=null）{
Log.e（“gsmCellLocation1:”，String.valueOf（gsmCellLocation1））；
}否则{
Log.e（“gsmCellLocation1:，“num1”）；
}                      
GsmCellLocation location33=（GsmCellLocation）电话：getCellLocation（）；
如果（位置33！=null）{
Log.e（“location33:，String.valueOf（location33））；
}否则{
Log.e（“位置33:，“编号33”）；
}
最终列表gsmCellLocation2=tel.getAllCellInfo（）；
如果（gsmCellLocation2！=null）{
Log.e（“gsmCellLocation2:”，String.valueOf（gsmCellLocation2））；
}否则{
Log.e（“gsmCellLocation2:，“nul2”）；
}

使用

TelephonyManager tel = (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);                                                                        

    if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
            ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }                                                  

    CellLocation gsmCellLocation1 = tel.getCellLocation();
    if(gsmCellLocation1!=null){
        Log.e("gsmCellLocation1: ", String.valueOf(gsmCellLocation1));
    }else{
        Log.e("gsmCellLocation1: ", "nul 1");

    }                      

    GsmCellLocation location33 = (GsmCellLocation) tel.getCellLocation();
    if(location33!=null){
        Log.e("location33: ", String.valueOf(location33));
    }else{
        Log.e("location33: ", "nul 33");

    }

    final List<CellInfo> gsmCellLocation2 = tel.getAllCellInfo();
    if(gsmCellLocation2!=null){
        Log.e("gsmCellLocation2: ", String.valueOf(gsmCellLocation2));
    }else{
        Log.e("gsmCellLocation2: ", "nul 2");

    }

---

如果用户在运行Android 9的设备上禁用了设备位置，则以下方法不会提供结果：

TelephonyManager tel = (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);                                                                        

    if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
            ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }                                                  

    CellLocation gsmCellLocation1 = tel.getCellLocation();
    if(gsmCellLocation1!=null){
        Log.e("gsmCellLocation1: ", String.valueOf(gsmCellLocation1));
    }else{
        Log.e("gsmCellLocation1: ", "nul 1");

    }                      

    GsmCellLocation location33 = (GsmCellLocation) tel.getCellLocation();
    if(location33!=null){
        Log.e("location33: ", String.valueOf(location33));
    }else{
        Log.e("location33: ", "nul 33");

    }

    final List<CellInfo> gsmCellLocation2 = tel.getAllCellInfo();
    if(gsmCellLocation2!=null){
        Log.e("gsmCellLocation2: ", String.valueOf(gsmCellLocation2));
    }else{
        Log.e("gsmCellLocation2: ", "nul 2");

    }

getAllCellInfo()
listen()
getCellLocation()
getNeighboringCellInfo()

---

我也有同样的问题，我的代码在Android版本低于9的设备上运行。当设备位置被禁用时，getAllCellInfo（）在我正在测试的Android 9设备中返回一个空列表。当设备位置打开时，一切正常。

我已经在使用该权限，并且已经尝试GetNeightringCellInfo（），它也会重新运行空列表

TelephonyManager tel = (TelephonyManager) getContext().getSystemService(Context.TELEPHONY_SERVICE);                                                                        

    if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
            ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return;
    }                                                  

    CellLocation gsmCellLocation1 = tel.getCellLocation();
    if(gsmCellLocation1!=null){
        Log.e("gsmCellLocation1: ", String.valueOf(gsmCellLocation1));
    }else{
        Log.e("gsmCellLocation1: ", "nul 1");

    }                      

    GsmCellLocation location33 = (GsmCellLocation) tel.getCellLocation();
    if(location33!=null){
        Log.e("location33: ", String.valueOf(location33));
    }else{
        Log.e("location33: ", "nul 33");

    }

    final List<CellInfo> gsmCellLocation2 = tel.getAllCellInfo();
    if(gsmCellLocation2!=null){
        Log.e("gsmCellLocation2: ", String.valueOf(gsmCellLocation2));
    }else{
        Log.e("gsmCellLocation2: ", "nul 2");

    }