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PORetrieve cell towers information
 

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    <p>Does anybody know how to retrieve cell tower list on GSM and CDMA on Android.</p> <p>I have been trying to use Google Maps Locations API: <a href="https://developers.google.com/maps/documentation/business/geolocation/">https://developers.google.com/maps/documentation/business/geolocation/</a></p> <p>And I want to get cell towers information with these fields:</p> <ul> <li>cellId: Unique identifier of the cell. On GSM, this is the Cell ID (CID); CDMA networks use the Base Station ID (BID).</li> <li>locationAreaCode: The Location Area Code (LAC) for GSM networks; CDMA networks use Network ID (NID).</li> <li>mobileCountryCode: The cell tower's Mobile Country Code (MCC).</li> <li>mobileNetworkCode: The cell tower's Mobile Network Code. This is the MNC for GSM, or the System ID (SID) for CDMA.</li> <li>age: The number of milliseconds since this cell was primary. If age is 0, the cellId represents a current measurement.</li> <li>signalStrength: Radio signal strength measured in dBm.</li> <li>timingAdvance: The timing advance value.</li> </ul> <hr> <p>This code doesn't especially getting cell towers information.</p> <pre><code>TelephonyManager tel = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); // Type of the network int phoneTypeInt = tel.getPhoneType(); String phoneType = null; phoneType = phoneTypeInt == TelephonyManager.PHONE_TYPE_GSM ? "gsm" : phoneType; phoneType = phoneTypeInt == TelephonyManager.PHONE_TYPE_CDMA ? "cdma" : phoneType; try { if (phoneType != null) { params.put("radioType", phoneType); } } catch (Exception e) {} /* * The below code doesn't work I think. */ JSONArray cellList = new JSONArray(); List&lt;NeighboringCellInfo&gt; neighCells = tel.getNeighboringCellInfo(); for (int i = 0; i &lt; neighCells.size(); i++) { try { JSONObject cellObj = new JSONObject(); NeighboringCellInfo thisCell = neighCells.get(i); cellObj.put("cellId", thisCell.getCid()); cellList.put(cellObj); } catch (Exception e) {} } if (cellList.length() &gt; 0) { try { params.put("cellTowers", cellList); } catch (JSONException e) {} } </code></pre> <p>And I set permissions like this:</p> <pre><code>&lt;uses-permission android:name="android.permission.READ_PHONE_STATE"/&gt; &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt; &lt;uses-permission android:name="android.permission.ACCESS_COARSE_UPDATES"/&gt; &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/&gt; &lt;uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/&gt; &lt;uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/&gt; &lt;uses-permission android:name="android.permission.INTERNET"/&gt; </code></pre> <p>Please help me, thank you.</p>
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    1. CO"My code works except getting cell towers information" is a useless description of your symptoms. Please take the time to explain, in detail, what is and is not working.
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    2. COI'm sorry, English is not my primary language. When I run the code on my Android (carrier is sprint), "tel.getNeighboringCellInfo();" returns always null.
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    3. COAnd even if I try the code on other android of GSM networks, I got the same result. So my question is how to get cell towers information.
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