利用Google接口实现基站定位

LocationAct.java
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package lab.sodino.location; 

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import java.io.BufferedReader; 

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import java.io.IOException; 

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import java.io.InputStream; 

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import java.io.InputStreamReader; 

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import java.io.UnsupportedEncodingException; 

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import org.apache.http.HttpEntity; 

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import org.apache.http.HttpResponse; 

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import org.apache.http.client.ClientProtocolException; 

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import org.apache.http.client.methods.HttpPost; 

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import org.apache.http.entity.StringEntity; 

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import org.apache.http.impl.client.DefaultHttpClient; 

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import org.json.JSONArray; 

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import org.json.JSONException; 

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import org.json.JSONObject; 

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import android.app.Activity; 

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import android.content.Context; 

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import android.os.Bundle; 

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import android.telephony.TelephonyManager; 

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import android.telephony.gsm.GsmCellLocation; 

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import android.view.View; 

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import android.widget.Button; 

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import android.widget.TextView; 

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/** 

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* Google定位的实现.<br/> 

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* Geolocation的详细信息请参见：<br/> 

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* <a 

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* href="http://code.google.com/apis/gears/geolocation_network_protocol.html"> 

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* http://code.google.com/apis/gears/geolocation_network_protocol.html</a> 

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*/

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public class LocationAct extends Activity { 

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private TextView txtInfo; 

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public void onCreate(Bundle savedInstanceState) { 

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super.onCreate(savedInstanceState); 

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setContentView(R.layout.main); 

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Button btn = (Button) findViewById(R.id.btnStart); 

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txtInfo = (TextView) findViewById(R.id.txtInfo); 

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btn.setOnClickListener(new Button.OnClickListener() { 

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public void onClick(View view) { 

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getLocation(); 

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} 

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}); 

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} 

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private void getLocation() { 

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TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); 

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GsmCellLocation gsmCell = (GsmCellLocation) tm.getCellLocation(); 

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int cid = gsmCell.getCid(); 

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int lac = gsmCell.getLac(); 

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String netOperator = tm.getNetworkOperator(); 

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int mcc = Integer.valueOf(netOperator.substring(0, 3)); 

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int mnc = Integer.valueOf(netOperator.substring(3, 5)); 

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JSONObject holder = new JSONObject(); 

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JSONArray array = new JSONArray(); 

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JSONObject data = new JSONObject(); 

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try { 

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holder.put("version", "1.1.0"); 

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holder.put("host", "maps.google.com"); 

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holder.put("address_language", "zh_CN"); 

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holder.put("request_address", true); 

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holder.put("radio_type", "gsm"); 

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holder.put("carrier", "HTC"); 

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data.put("cell_id", cid); 

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data.put("location_area_code", lac); 

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data.put("mobile_countyr_code", mcc); 

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data.put("mobile_network_code", mnc); 

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array.put(data); 

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holder.put("cell_towers", array); 

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} catch (JSONException e) { 

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e.printStackTrace(); 

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} 

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DefaultHttpClient client = new DefaultHttpClient(); 

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HttpPost httpPost = new HttpPost("http://www.google.com/loc/json"); 

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StringEntity stringEntity = null; 

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try { 

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stringEntity = new StringEntity(holder.toString()); 

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} catch (UnsupportedEncodingException e) { 

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e.printStackTrace(); 

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} 

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httpPost.setEntity(stringEntity); 

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HttpResponse httpResponse = null; 

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try { 

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httpResponse = client.execute(httpPost); 

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} catch (ClientProtocolException e) { 

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e.printStackTrace(); 

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} catch (IOException e) { 

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e.printStackTrace(); 

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} 

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HttpEntity httpEntity = httpResponse.getEntity(); 

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InputStream is = null; 

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try { 

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is = httpEntity.getContent(); 

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} catch (IllegalStateException e) { 

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e.printStackTrace(); 

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} catch (IOException e) { 

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// TODO Auto-generated catch block 

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e.printStackTrace(); 

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} 

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InputStreamReader isr = new InputStreamReader(is); 

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BufferedReader reader = new BufferedReader(isr); 

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StringBuffer stringBuffer = new StringBuffer(); 

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try { 

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String result = ""; 

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while ((result = reader.readLine()) != null) { 

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stringBuffer.append(result); 

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} 

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} catch (IOException e) { 

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e.printStackTrace(); 

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} 

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System.out.println("[sodino]" + stringBuffer.toString()); 

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txtInfo.setText(stringBuffer.toString()); 

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} 

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}
[代码] 权限设定

`1`	`<uses-permission` `android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>`
`2`	`<uses-permission` `android:name="android.permission.INTERNET"></uses-permission>`
利用Google接口实现基站定位

[代码] 权限设定

[图片] 1.jpg
