[英]how to get cell tower location in android
我想找到最近的蜂窩塔位置。 我試過了
private class ServiceStateHandler extends Handler {
public void handleMessage(Message msg) {
switch (msg.what) {
case MY_NOTIFICATION_ID:
ServiceState state = mPhoneStateReceiver.getServiceState();
System.out.println(state.getCid());
System.out.println(state.getLac());
System.out.println(mPhoneStateReceiver.getSignalStrength());
break;
}
}
}
我試過這個鏈接,但它對我不起作用如何使用手機信號塔查找用戶位置?
我想我做錯了什么。 因為這個鏈接答案適用於其他人我做了相同的代碼,如鏈接中顯示我使用2,2谷歌api創建項目但我無法獲得手機塔位置
我執行此操作的代碼不等待意圖,但在活動onCreate中獲取對電話服務的引用,並在顯示時僅在需要時調用getCellLocation() 。
m_manager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
GsmCellLocation loc = (GsmCellLocation)m_manager.getCellLocation();
if (loc != null)
{
out.format("Location ");
if (loc.getCid() == -1) {
out.format("cid: unknown ");
} else {
out.format("cid: %08x ", loc.getCid());
}
if (loc.getLac() == -1) {
out.format("lac: unknown\n");
} else {
out.format("lac: %08x\n", loc.getLac());
}
}
在監聽PhoneStateService意圖時,我也看到我們必須在TelephonyManager上調用listen
並指定感興趣的字段。 在我的情況下是:
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d(TAG, "service start");
m_manager.listen(m_listener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS | PhoneStateListener.LISTEN_SERVICE_STATE | PhoneStateListener.LISTEN_CALL_STATE);
return super.onStartCommand(intent, flags, startId);
}
您可能需要將LISTEN_CELL_LOCATION
添加到列表中。
注意:您是否已將ACCESS_COARSE_LOCATION權限添加到應用清單? 如PhoneStateListener文檔中所述,如果您沒有信息權限,某些字段將為空。
試試這個代碼 -
mPhoneStateReceiver = new PhoneStateIntentReceiver(this, new ServiceStateHandler());
mPhoneStateReceiver.notifyServiceState(MY_NOTIFICATION_ID);
mPhoneStateReceiver.notifyPhoneCallState(MY_NOTIFICATION_ID);
mPhoneStateReceiver.notifySignalStrength(MY_NOTIFICATION_ID);
mPhoneStateReceiver.registerIntent();
private class ServiceStateHandler extends Handler {
public void handleMessage(Message msg) {
switch (msg.what) {
case MY_NOTIFICATION_ID:
ServiceState state = mPhoneStateReceiver.getServiceState();
System.out.println(state.getCid());
System.out.println(state.getLac());
System.out.println(mPhoneStateReceiver.getSignalStrength());
break;
}
}
}
從StackOverflow上的這個問題
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