getCellLocation 返回 null

发布于 2024-09-11 22:56:55 字数 986 浏览 10 评论 0原文

我正在尝试访问当前的小区位置信息。当我尝试调用getCellLocation()，它返回null。

我无法推理出这一点..相同的代码可以在 1.5 上运行但失败 1.6 或 2.1 上。（在 G1 1.6 和 HTC legend 2.1 上测试。）

有人可以帮助我纠正这个错误吗？我的代码如下。

TelephonyManager tMgr = (TelephonyManager)
getSystemService(TELEPHONY_SERVICE);
outputView = (TextView) findViewById(R.id.output);

outputView.append("Device type:" + tMgr.getPhoneType() + "\n");

GsmCellLocation gsmCellLocation = (GsmCellLocation) tMgr.getCellLocation();
if (gsmCellLocation != null) {
    String mCellId = "" + gsmCellLocation.getCid();
    String mLAC = "" + gsmCellLocation.getLac();
    Log.d("SDKService", "Cell Id: " + mCellId + " LAC: " + mLAC);
    outputView.append("Cell Id: " + mCellId + " LAC: " + mLAC + "\n");
}

另外，我还添加了以下权限：

ACCESS_FINE_LOCATION
ACCESS_COARSE_LOCATION
CONTROL_LOCATION_UPDATES

我还需要添加任何其他权限吗？

请让我知道我哪里出了问题。

原文

I am trying to access the current cell location information. When I
try to call getCellLocation(), it returns null.

I am unable to reason out this.. the same code works on 1.5 but fails
on 1.6 or 2.1. (Tested on G1 with 1.6 and HTC legend 2.1.)

Can someone help me in correcting this bug? My code is below.

TelephonyManager tMgr = (TelephonyManager)
getSystemService(TELEPHONY_SERVICE);
outputView = (TextView) findViewById(R.id.output);

outputView.append("Device type:" + tMgr.getPhoneType() + "\n");

GsmCellLocation gsmCellLocation = (GsmCellLocation) tMgr.getCellLocation();
if (gsmCellLocation != null) {
    String mCellId = "" + gsmCellLocation.getCid();
    String mLAC = "" + gsmCellLocation.getLac();
    Log.d("SDKService", "Cell Id: " + mCellId + " LAC: " + mLAC);
    outputView.append("Cell Id: " + mCellId + " LAC: " + mLAC + "\n");
}

Also, I have added the following permissions :