Ios 如何从UITableView中的数组中获取用户选择的值并将该值传递给服务器

我有两组字典

    1. Array of categories

        [{
          "Category_ID": "1",
          "Category_en": "Event1",
        }, 
        {
          "Category_ID": "4",
          "Category_en": "Event4",
        },
        {
          "Category_ID": "9",
          "Category_en": "Event9",
        }]

    2.Array of cities
        [{
          "City_id": "1",
          "City_name": "Place1",
        }, 
        {
          "City_id": "2",
          "City_name": "Place2",
        },
        {
          "City_id": "4",
          "City_name": "Place4",
        }]

我在两个表视图中显示这些数组中的值，用户可以选择多个项目，表示他们想要的城市和类别。如何获取用户选择的城市、类别并将id值传递到url以从服务器获取结果

如果我通过此方法将选择的行作为数组获取，那么如何将城市和类别中相应的

id

附加到url

let list = tableView.indexPathsForSelectedRows() as? [NSIndexPath]

这是从服务器获取结果的url

   example : category_id=1,9&city_id=2,4

   http://www.events/events/searchEventsByCategory?category_id=1,9&city_id=2,4

---

感谢您提供的任何帮助

制作2个数组并将选定的索引目录添加到数组中

说出selectedcategories和selectedcities

在

---

在选择之后，通过添加for循环生成字符串

生成一个数组，并将所选索引目录添加到数组中

说出selectedcategories和selectedcities

在

---

在选择之后，通过添加for循环来创建字符串

假设您有一个categoriesTableView、citiesTableView，并且您的数组命名为categoryArray和cityArray

//create string of selected categories
let list = categoriesTableView.indexPathsForSelectedRows() as? [NSIndexPath];
let categoryIds = "";
for (let indexPath in list) {
    if (categoryIds.length == 0) {
        categoryIds = categoryArray[indexPath.row]["Category_ID"])
        continue
    }
    categoryIds = "\(categoryIds),\(categoryArray[indexPath.row]["Category_ID"])"
}

//create string of selected cities
list = citiesTableView.indexPathsForSelectedRows() as? [NSIndexPath];
let citiesIds = "";
for (let indexPath in list) {
    if (citiesIds.length == 0) {
        citiesIds = cityArray[indexPath.row]["City_id"])
        continue
    }
    citiesIds = "\(citiesIds),\(cityArray[indexPath.row]["City_id"])"
}

您的URL如下所示：

let url = "http://www.events/events/searchEventsByCategory?category_id=\(categoryIds)&city_id=\(citiesIds)"

---

假设您有一个categoriesTableView、citiesTableView，并且您的数组名为categoryArray和cityArray

//create string of selected categories
let list = categoriesTableView.indexPathsForSelectedRows() as? [NSIndexPath];
let categoryIds = "";
for (let indexPath in list) {
    if (categoryIds.length == 0) {
        categoryIds = categoryArray[indexPath.row]["Category_ID"])
        continue
    }
    categoryIds = "\(categoryIds),\(categoryArray[indexPath.row]["Category_ID"])"
}

//create string of selected cities
list = citiesTableView.indexPathsForSelectedRows() as? [NSIndexPath];
let citiesIds = "";
for (let indexPath in list) {
    if (citiesIds.length == 0) {
        citiesIds = cityArray[indexPath.row]["City_id"])
        continue
    }
    citiesIds = "\(citiesIds),\(cityArray[indexPath.row]["City_id"])"
}

您的URL如下所示：

let url = "http://www.events/events/searchEventsByCategory?category_id=\(categoryIds)&city_id=\(citiesIds)"

---

您是否尝试过使用

tableView.indexPathsForSelectedRows

？谢谢。请查看我编辑的问题您是在询问如何构造url字符串吗？您是否尝试过使用

tableView.indexPathsForSelectedRows

？谢谢。请看我编辑的问题。你是在问如何构造url字符串吗？谢谢。你能指出任何与此类似或相关的例子吗？谢谢。你能指出任何与此类似或相关的例子吗？告诉我什么不起作用？它创建了哪个URL？告诉我到底是什么不起作用？它创建了哪个URL？