Question

我已经从API将图像列表及其详细信息加载到了自动扩展的gridview中。以下是有关如何将API的详细信息加载到gridview中的代码。我左侧有一个汉堡菜单，它具有类别视图。例如，如果我有许多动态类别，如何从已加载的图像和详细信息显示在Gridview中。

List<int> assetiid = new List<int>();
List<string> productname = new List<string>();
List<string> productcatogery = new List<string>();
List<string> productcatogeryid = new List<string>();
List<string> productdesc = new List<string>();
List<int> assetpriceurl = new List<int>();
List<string> assetimageurl = new List<string>();
List<string> assetimageurl1 = new List<string>();
List<string> assetimageurl2 = new List<string>();
List<string> assetimageurl3 = new List<string>();


List<string> assetmodelurl = new List<string>();


string JSONDataString;


public static PopulateGrid Instancepop;

public void Awake()
{
    Instancepop = this;
}


// Use this for initialization
public void Start ()
{
    StartCoroutine(GetData());

}

// Update is called once per frame
void Update () 
{


}

IEnumerator GetData()
{

    string URL = "http://test.com/test/api/products";//fake api
    WWW readjson = new WWW(URL);
    yield return readjson;

    if (string.IsNullOrEmpty(readjson.error))
    {

        JSONDataString = readjson.text;
    }

    JSONNode JNode = SimpleJSON.JSON.Parse(JSONDataString);

    for (int i = 0; i < JNode.Count; i++)
    {
        //Debug.Log("Image URLS before = " + JNode[i]["product_images"][0]);
        assetiid.Add(JNode[i]["id"]);
        productname.Add(JNode[i]["product_name"]);
        productcatogery.Add(JNode[i]["product_category"]);
        productcatogeryid.Add(JNode[i]["product_category_id"]);
        productdesc.Add(JNode[i]["product_description"]);
        assetpriceurl.Add(JNode[i]["product_price"]);

        assetimageurl.Add(JNode[i]["product_images"][0]);
        assetimageurl1.Add(JNode[i]["product_images"][1]);
        assetimageurl2.Add(JNode[i]["product_images"][2]);
        assetimageurl3.Add(JNode[i]["product_images"][3]);

        assetmodelurl.Add(JNode[i]["product_model"]);


        Debug.Log("Image URLS = "+assetimageurl[i] );


    }

    StartCoroutine(FillData());


}

IEnumerator FillData()
{
    //for (int i = 0; i < assetimageurl.Count; i++)
    for (int i = 0; i < assetimageurl.Count; i++)
    {
        Texture2D tex;
        tex = new Texture2D(150, 150, TextureFormat.DXT1, false);


        WWW imgurllinks = new WWW(assetimageurl[i]);
        yield return imgurllinks;

        if (string.IsNullOrEmpty(imgurllinks.error))
        {
            yield return null;

        }

        imgurllinks.LoadImageIntoTexture(tex);
        rimg.texture = tex;

        //RawImage newItem = Instantiate(rimg) as RawImage;
        //newItem.transform.SetParent(ParentTransform.transform,false);
        Productxt.text = productname[i];
        Pricetxt.text = assetpriceurl[i].ToString();

            Instantiate(Mainprefab, ParentTransform);

    }


}

下面是所有产品详细信息API（未显示完整API）

"id":1,"product_name":"Dining Chair ","product_category_id":3

下面是类别API

[{"id":1,"category":"Chairs"},{"id":2,"category":"Tables"},{"id":3,"category":"Beds"}]

类别API中的“ id”与完整产品API中的“ product_category_id”相匹配，以根据类别进行显示。

如果我在类别视图中单击椅子，我想显示已加载的详细信息中包含“ product_category_id” = 3的产品的所有详细信息

//以下功能在不同的类上

public void ButtonClickedOn(int buttonNo)
{
    buttonNo = Index;

    Debug.Log("Button clicked = " + buttonNo);

    if(buttonNo==0)
    {
 //Category 1 is clicked

    }

}

Answer 1

使用Json.NET将json反序列化为C# Object。然后使用linq过滤具有特殊类别的列表。

这是一个简单的console工作示例

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;

class ProductDetails
{
    public int id { get; set; }
    public string product_name { get; set; }
    public int product_category_id { get; set; }
}

class Category
{
    public int id { get; set; }
    public string category { get; set; }
}

class Program
{
    static void Main()
    {
        string productJson = @"[{'id': '1', 'product_name':'test', 'product_category_id': '1'},
                                {'id': '2', 'product_name':'Dining Chair', 'product_category_id': '3'},
                                {'id': '3', 'product_name':'Dining Chippsss', 'product_category_id': '3'}]";

        string categoryJson = @"[{ 'id':'1','category':'Chairs'},
                                { 'id':'2','category':'Tables'},
                                { 'id':'3','category':'Beds'}]";

        var categories = JsonConvert.DeserializeObject<List<Category>>(categoryJson);
        var products = JsonConvert.DeserializeObject<List<ProductDetails>>(productJson);

        // Finding tables category
        var query = (from x in products
                     where x.product_category_id == 3
                     select x);

        foreach (var product in query)
        {
            var category = categories.SingleOrDefault(x => x.id == product.product_category_id);

            Console.WriteLine("Product Name: " + product.product_name + 
                              " - Product Category: " + category.category);
        }
    }
}

如何根据Unity中所有模型的已加载列表中的类别显示项目？

1 个答案: