安卓中如何获取LTE网络的CGI(小区全球识别码)?
时间: 2023-12-10 11:38:48 浏览: 57
在安卓设备上获取LTE网络的CGI,可以使用以下步骤:
1. 获取TelephonyManager对象:
```
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
```
2. 获取当前网络类型:
```
int networkType = telephonyManager.getNetworkType();
```
3. 判断当前网络类型是否为LTE网络:
```
if (networkType == TelephonyManager.NETWORK_TYPE_LTE) {
//获取LTE网络的CGI
}
```
4. 获取LTE网络的CI和TAC:
```
List<CellInfo> cellInfoList = telephonyManager.getAllCellInfo();
if (cellInfoList != null) {
for (CellInfo cellInfo : cellInfoList) {
if (cellInfo instanceof CellInfoLte) {
CellIdentityLte cellIdentityLte = ((CellInfoLte) cellInfo).getCellIdentity();
int ci = cellIdentityLte.getCi();
int tac = cellIdentityLte.getTac();
//根据ci和tac计算CGI
int cgi = (tac << 8) | (ci & 0xff);
}
}
}
```
注意:以上代码需要在AndroidManifest.xml中添加权限:
```
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
```