using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class GPSManager : MonoBehaviour
{

  public Text txt;

  public void GetGPS ()
  {
    StartCoroutine (StartGPS ());  
  }

  IEnumerator StartGPS ()
  {
    txt.text = "开始获取GPS信息";

    // 检查位置服务是否可用
    if (!Input.location.isEnabledByUser) {
      txt.text = "位置服务不可用";
      yield break;
    }

    // 查询位置之前先开启位置服务
    txt.text = "启动位置服务";
    Input.location.Start ();

    // 等待服务初始化
    int maxWait = 20;
    while (Input.location.status == LocationServiceStatus.Initializing && maxWait > 0) {
      txt.text = Input.location.status.ToString () + ">>>" + maxWait.ToString ();
      yield return new WaitForSeconds (1);
      maxWait--;
    }

    // 服务初始化超时
    if (maxWait < 1) {
      txt.text = "服务初始化超时";
      yield break;
    }

    // 连接失败
    if (Input.location.status == LocationServiceStatus.Failed) {
      txt.text = "无法确定设备位置";
      yield break;
    } else {
      txt.text = "Location: \r\n" +
      "纬度：" + Input.location.lastData.latitude + "\r\n" +
      "经度：" + Input.location.lastData.longitude + "\r\n" +
      "海拔：" + Input.location.lastData.altitude + "\r\n" +
      "水平精度：" + Input.location.lastData.horizontalAccuracy + "\r\n" +
      "垂直精度：" + Input.location.lastData.verticalAccuracy + "\r\n" +
      "时间戳：" + Input.location.lastData.timestamp;
    }

    // 停止服务，如果没必要继续更新位置，（为了省电）
    Input.location.Stop ();
  }
}


Unity3d,获取GPS定位信息_连接失败