006-实现Unity3d获取设备的GPS信息(经度纬度信息)

using UnityEngine;
using System.Collections;
/// <summary>
/// 2016/05/09 获取设备的GPS信息，存储下来，并上传服务器进行验证...
/// </summary>
public class GetGPS : MonoBehaviour
{
    public string gps_info = "";//GPS的信息
    public int flash_num = 1;//更新的次数

    // Use this for initialization  
    void Start()
    {

    }

    void OnGUI()
    {
        GUI.skin.label.fontSize = 28;
        GUI.Label(new Rect(20, 20, 600, 48), this.gps_info);
        GUI.Label(new Rect(20, 50, 600, 48), this.flash_num.ToString());


        GUI.skin.button.fontSize = 50;
        if (GUI.Button(new Rect(Screen.width / 2 - 110, 200, 220, 85), "GPS定位"))
        {
            // 这里需要启动一个协同程序  
            StartCoroutine(StartGPS());
        }
        if (GUI.Button(new Rect(Screen.width / 2 - 110, 500, 220, 85), "刷新GPS"))
        {
            this.gps_info = "N:" + Input.location.lastData.latitude + " E:" + Input.location.lastData.longitude;
            this.gps_info = this.gps_info + " Time:" + Input.location.lastData.timestamp;
            this.flash_num += 1;
        }
    }


    // Input.location = LocationService  
    // LocationService.lastData = LocationInfo   


    void StopGPS()
    {
        Input.location.Stop();
    }


    IEnumerator StartGPS()
    {
        // Input.location 用于访问设备的位置属性（手持设备）, 静态的LocationService位置  
        // LocationService.isEnabledByUser 用户设置里的定位服务是否启用  
        if (!Input.location.isEnabledByUser)
        {
            this.gps_info = "isEnabledByUser value is:" + Input.location.isEnabledByUser.ToString() + " Please turn on the GPS";
            yield return false;
        }


        // LocationService.Start() 启动位置服务的更新,最后一个位置坐标会被使用  
        Input.location.Start(10.0f, 10.0f);


        int maxWait = 20;
        while (Input.location.status == LocationServiceStatus.Initializing && maxWait > 0)
        {
            // 暂停协同程序的执行(1秒)  
            yield return new WaitForSeconds(1);
            maxWait--;
        }


        if (maxWait < 1)
        {
            this.gps_info = "Init GPS service time out";
            yield return false;
        }


        if (Input.location.status == LocationServiceStatus.Failed)
        {
            this.gps_info = "Unable to determine device location";
            yield return false;
        }
        else
        {
            this.gps_info = "N:" + Input.location.lastData.latitude + " E:" + Input.location.lastData.longitude;
            this.gps_info = this.gps_info + " Time:" + Input.location.lastData.timestamp;
            yield return new WaitForSeconds(100);
        }
    }
}