Question

我正在使用Unity编写游戏，我需要加载静态地图。地图在编辑器和Android设备中正确显示，但在iOS设备中无法显示。它说网址不正确......我不知道解决方案是什么。有谁能够帮我？

我使用以下代码调用地图：

select name, employeeid, 
       trunc(sysdate - creation_date) + 1 counter 
from your_table

这是调用网址的完整代码：

url= "http://maps.google.com/maps/api/staticmap?center="+fixLat+","+fixLon+"&zoom="+zoom+"&scale=2&size=640x640&style=feature:all|element:geometry|hue:0x00fff0|lightness:0|gamma:0.21|visibility:on&style=feature:all|element:labels|visibility:off&style=feature:landscape.man_made|element:geometry|color:0x133f42|visibility:on&style=feature:landscape.natural|element:geometry.fill|visibility:on|hue:0x00ffd2|saturation:35|lightness:0|gamma:0.5&style=feature:poi|element:geometry.fill|lightness:0|gamma:0.6|visibility:on&style=feature:poi.park|element:geometry|visibility:on|saturation:0|color:0x2e9470&style=feature:road|element:geometry.fill|visibility:on|color:0x05111a&style=feature:road|element:geometry.stroke|visibility:off&style=feature:transit|element:geometry|visibility:off"+key;

这些是截图。 Editor and Android device

iOS device

Answer 1

在您的问题中运行代码并能够复制您的问题。这是因为在iOS上使用http连接而不是https的新限制。就像我在评论中提到的那样，用WWW替换UnityWebRequest解决了这个问题。

此外，每次执行new Texture2D(1280, 1280, TextureFormat.RGB24, false);时都会不必要地创建新纹理。这应该使用Unity的UI组件RawImage来完成。在这种情况下，没有不必要的内存分配。

您需要对问题中的代码执行的操作就是删除WWW API并使用UnityWebRequest。同时删除Renderer或Texture2D并使用RawImage显示您的地图。下面是我用来测试这个的简单测试脚本。它在Editor，iOS和可能所有其他平台上运行。

public class Gpsconnect : MonoBehaviour
{
    public RawImage imageDisp;
    public float fixLat = 42.3627f;
    public float fixLon = -71.05686f;
    public int zoom = 4;
    public string key = "";
    public Vector3 iniRef;
    public Transform cam;
    private Camera mycam;
    private string url = "";

    //Update Map with the corresponding map images for the current location ============================================
    IEnumerator load()
    {
        yield return null;
        mycam = Camera.main;
        fixLat = ((360 / Mathf.PI) * Mathf.Atan(Mathf.Exp(0.00001567855943f * (cam.position.z - 3 * mycam.orthographicSize / 2 + iniRef.z)))) - 90;
        fixLon = (18000 * (cam.position.x + iniRef.x)) / 20037508.34f;

        //MAP ================================================================================
        //Build a valid Google Maps tile request for the current location 

        url = "https://maps.google.com/maps/api/staticmap?center=" + fixLat + "," + fixLon + "&zoom=" + zoom + "&scale=2&size=640x640&style=feature:all|element:geometry|hue:0x00fff0|lightness:0|gamma:0.21|visibility:on&style=feature:all|element:labels|visibility:off&style=feature:landscape.man_made|element:geometry|color:0x133f42|visibility:on&style=feature:landscape.natural|element:geometry.fill|visibility:on|hue:0x00ffd2|saturation:35|lightness:0|gamma:0.5&style=feature:poi|element:geometry.fill|lightness:0|gamma:0.6|visibility:on&style=feature:poi.park|element:geometry|visibility:on|saturation:0|color:0x2e9470&style=feature:road|element:geometry.fill|visibility:on|color:0x05111a&style=feature:road|element:geometry.stroke|visibility:off&style=feature:transit|element:geometry|visibility:off" + "&sensor=false&key=" + key;

        UnityWebRequest www = UnityWebRequest.GetTexture(url);
        yield return www.Send();
        Debug.Log("Done: ");

        if (www.isError)
        {
            Debug.Log("Error while downloading image: " + www.error);
        }
        else
        {
            imageDisp.texture = ((DownloadHandlerTexture)www.downloadHandler).texture;
        }
    }

    void Start()
    {
        StartCoroutine(load());
    }
}

Google静态地图不会在iOS设备中加载

1 个答案: