无法将逗号分隔的字符串转换为 swift 中的整数数组

Question

我正在获取整数字符串，如果是整数，我需要将其转换为数组

我需要这样 [8,9,10]

  let stringOfints = "8,9,10"

  let arrOfIds = stringOfints?.components(separatedBy: ",")

0/页:

["8","9", "10"]

编辑： 这里我需要用整数字符串

检查id

我的json喜欢这样

 {
"jsonrpc": "2.0",
"result": {
    "sub_category": [
        {
            "id": 2,
            "title": "Logo Design"
        },
        {
            "id": 3,
            "title": "banner design"
        },
        {
            "id": 5,
            "title": "business web site"
        },
        {
            "id": 10,
            "title": "Business Card Design"
        }
    ]
}
}

代码：这里 arrOfIds 是 [2, 3] 但是当我比较 arrOfIds 和 json id 并且如果它匹配然后将它的标题附加到 arrSubCat 但是如果我在 for 循环结束时打印 arrSubCat 那么为什么所有标题都会出现...请帮助

var arrSubCat:[String] = []

private func getSubCategoryServiceIDs() {
let param = ["category_id" : categoryID!]

APIReqeustManager.sharedInstance.serviceCall(param: param, url: CommonUrl.get_sub_category) { [weak self] (resp) in

    self?.getSubCategoryIDs = GetSubCatModel(dictionary: resp.dict as NSDictionary? ?? NSDictionary())
    
    if self?.getServiceDetails?.result?.serviceDetails?.sub_cat_group != nil{

        let kat = self?.getSubCategoryIDs?.result?.sub_category ?? []
        let value = self?.getServiceDetails?.result?.serviceDetails?.sub_cat_group

        let arrOfIds = value?.components(separatedBy: ",").compactMap { Int([=13=]) }
        
        for singleCat in kat{

            if ((arrOfIds?.contains(singleCat.id ?? 0)) != nil){
                self?.arrSubCat.append(singleCat.title ?? "")
            }
        }
        print("array of sub cat \(self?.arrSubCat)")//getting all titles why?
        self?.collectionView.reloadData()
    }
}
}

o/p

array of sub cat (["Logo Design", "banner design", "business web site", "Business Card Design"])

Answer 1

上一个答案

您必须将 String 转换为 Int

let stringOfints = "8,9,10"
let arrOfIds = stringOfints.components(separatedBy: ",").compactMap { Int([=10=]) }

更新答案

修改里面的代码 API 像下面这样调用并尝试。

let arrOfIds = value?.components(separatedBy: ",").compactMap { Int([=11=]) } ?? []
        
for singleCat in kat {
    if arrOfIds.contains(singleCat.id ?? 0) {
        self?.arrSubCat.append(singleCat.title ?? "")
    }
}

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