Question

现在我有一些api调用的代码。在下面的代码中，“print(httpResponse)”就是我可以看到我的api中的所有数据。但是在这个JSON数据中我需要选择一些参数，我需要在我的表视图中显示。怎么做。

let headers = [
  "content-type": "application/json",
  "cache-control": "no-cache",
  "postman-token": "76a32ab0-ade1-d9a6-881f-eff2705178ba"
]
let parameters = [“ID”: "5"]

let postData = NSJSONSerialization.dataWithJSONObject(parameters, options: nil, error: nil)

var request = NSMutableURLRequest(URL: NSURL(string: "http:EXAMPLEAPI..php")!,
                                        cachePolicy: .UseProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.HTTPMethod = "POST"
request.allHTTPHeaderFields = headers
request.HTTPBody = postData

let session = NSURLSession.sharedSession()
let dataTask = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error)
  } else {
    let httpResponse = response as? NSHTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()

我的JSON结构和数据：

{
  "status": 1,
  "message": "Received Orders.",
  "myorders": [
    {
      "orderID": "1",
      "orderStatus": "Pending",
      "orderPrice": "450",
      "dateAdded": "01",
      "monthAdded": "Jan"
    },
    {
      "orderID": "2",
      "orderStatus": "Pending",
      "orderPrice": "1400",
      "dateAdded": "01",
      "monthAdded": "Jan"
    }
  ]
}

在我的表格视图中，我需要显示，订单ID，状态，价格。如何在某些nsarray或nsstring中保存api响应数据，并与我的表格视图标签保持一致。

请帮帮我。感谢

Answer 1

可以使用数据模型轻松完成

第1步： - 创建NSObject类

#import <Foundation/Foundation.h>
@interface Items : NSObject

@property (strong, nonatomic) NSString * orderID;
@property (strong, nonatomic) NSString * orderStatus;
@property (strong, nonatomic) NSString * orderPrice;
@property (strong, nonatomic) NSString * dateAdded;
@property (strong, nonatomic) NSString * monthAdded;
@end

第2步： - 将json数组中的值添加到创建的数据模型中。

 //Create a method
  -(void)getData{

        <==Your JSON Code for parsing==>

    //get your data according to you in dictionary from your nested array.
        for (NSDictionary *dict in self.arrOfJsonData) {
            Items *itemData = [[Items alloc] init];

            itemData.orderId=dict[@"orderId"];
            itemData.orderStatus=dict[@"orderStatus"];
            itemData.orderPrice=dict[@"orderPrice"];
            itemData.dateAdded=dict[@"dateAdded"];
            itemData.monthAdded=dict[@"monthAdded"];

            [self.nsmutableArray addObject:itemData];//Add the object in an NSMutableArray
                    itemData=nil;
                }
        }

第3步： -

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

Items *item = self.nsmutableArray[indexPath.row];//Get according to your JSON array.

        cell.lblorderID.text=item.orderID;
        cell.lblorderStatus.text=item.orderStatus;
        cell.lblorderPrice.text=item.orderPrice;
        cell.lbldateAdded.text=item.dateAdded;

return cell;
}

Answer 2

我在这里采取了你的JSON并解析了下面提到的数据

第1步：获得回复后，使用NSJSONSerialization以Array和Dictionary格式获取JSON。在你的情况下，响应返回字典，我们可以从中获取myOrder数组。

第2步：遍历myOrder数组并将数据放入模型对象中。或者你可以保持原样（即Dictionary格式）并保留在表数据源数组中。

第3步：从cellForRowAtIndexPath的数据源数组中获取词典或模型对象，并将文本分配给标签。

代码段：

let dataTask = session.dataTaskWithRequest(request, completionHandler: { (data, response, error) -> Void in
    if (error != nil) {
        print(error)
    } else {
        let httpResponse = response as? NSHTTPURLResponse

        //Call the method to parse
        getLocalJsonData(data);


        print(httpResponse)
    }
})

func getLocalJsonData(data:NSData)
{
    var jsonMyOrder : NSArray!
    var jsonTemp : NSDictionary = NSDictionary()

    do{
        jsonTemp = try  NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableLeaves) as! NSDictionary;
    }catch{

    }

    print("jsonTemp \(jsonTemp)");

    jsonMyOrder = jsonTemp["myorders"] as! NSArray;

    print("json \(jsonMyOrder)");

    for dictTemp in jsonMyOrder
    {

        print("oredr id \(dictTemp["orderID"])");
        print("Status id \(dictTemp["orderStatus"])");
        print("Price id \(dictTemp["orderPrice"])");

    }

    //Take a global variable NSMUtableArray type and add the parse order array to access it in the table's delegate method
    arrEvents = NSMutableArray(array: json);
    tblView.reloadData();
}

代码CellForRowAtIndexPath

func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
    let reuseIdentifier = "receipeID";
    let cell = tableView.dequeueReusableCellWithIdentifier(reuseIdentifier) as! ReceipeTableCell;

    let dictOrder = arrEvents[indexPath.row];

    let order = dictOrder["orderID"] as? String;
    let status = dictOrder["orderStatus"] as? String;
    let price = dictOrder["orderPrice"] as? String;

    cell.lblIngrediants.text = NSString(format: "Order : %@", order!) as String;
    cell.lblRatingsValue.text = NSString(format: "Status : %@", status!) as String;
    cell.lblRatings.text = NSString(format: "Price : %@", price!) as String;

    return cell;
}

输出：

希望它有所帮助快乐的编码...

如何在表格视图中提取和显示必要的数据或标注

2 个答案: