android 获取GPS定位，

/**

* 得到位置信息

*/

private void getLocation() {

// 获取位置管理服务

LocationManager locationManager;

String serviceName = Context.LOCATION_SERVICE;

locationManager = (LocationManager) this.getSystemService(serviceName);

// 查找到服务信息

Criteria criteria = new Criteria();

criteria.setAccuracy(Criteria.ACCURACY_FINE); // 高精度

criteria.setAltitudeRequired(false);

criteria.setBearingRequired(false);

criteria.setCostAllowed(true);

criteria.setPowerRequirement(Criteria.POWER_LOW); // 低功耗

String provider = locationManager.getBestProvider(criteria, true); // 获取GPS信息

Location location = locationManager.getLastKnownLocation(provider); // 通过GPS获取位置

updateToNewLocation(location);

try {

tv1.setText(getLocation(location));

} catch (Exception e) {

e.printStackTrace();

Log.e("", e.getMessage());

}

}

/**

* 根据精度和纬度定位到城市

*

* @param itude

* @return

* @throws Exception

*/

private String getLocation(Location itude) throws Exception {

String resultString = "";

/** 这里采用get方法，直接将参数加到URL上 */

String urlString = String.format(

"http://maps.google.cn/maps/geo?key=abcdefg&q=%s,%s",

itude.getLatitude(), itude.getLongitude());

Log.i("URL", urlString);

/** 新建HttpClient */

HttpClient client = new DefaultHttpClient();

/** 采用GET方法 */

HttpGet get = new HttpGet(urlString);

try {

/** 发起GET请求并获得返回数据 */

HttpResponse response = client.execute(get);

HttpEntity entity = response.getEntity();

BufferedReader buffReader = new BufferedReader(

new InputStreamReader(entity.getContent()));

StringBuffer strBuff = new StringBuffer();

String result = null;

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

strBuff.append(result);

}

resultString = strBuff.toString();

/** 解析JSON数据，获得物理地址 */

if (resultString != null && resultString.length() > 0) {

JSONObject jsonobject = new JSONObject(resultString);

JSONArray jsonArray = new JSONArray(jsonobject.get("Placemark")

.toString());

resultString = "";

for (int i = 0; i < jsonArray.length(); i++) {

resultString = jsonArray.getJSONObject(i).getString(

"address");

}

}

} catch (Exception e) {

throw new Exception("获取物理位置出现错误:" + e.getMessage());

} finally {

get.abort();

client = null;

}

return resultString;

}

补充一下：

在AndroidMenifest.xml里面需要加上

android.permission.INTERNET、android.permission.ACCESS_COARSE_LOCATION、android.permission.READ_PHONE_STATE权限，否则会出错。