Swift4.x 使用Alamofire请求（对Alamofi
2018-12-17 本文已影响50人
天上飞的狒狒
在开始工作前首先需要先引入第三方 网络请求
Alamofire ，如何引用我的上一篇文章有所设计，可以参考下
首先贴出一段数据
{
"activityList": [
{
"name": "新年签抽抽抽 领奖",
"startTime": "2018-02-14 09:39",
"endTime": "2018-09-30 09:39",
"address": "",
"isStart": "1",
"isEnd": "1",
"signupNum": "0",
"imageUrl": "",
"displayType": "1",
"url": "http://10.30.140.11:8000/clt/publish/clt/resource/portal/v1/activityDetail.jsp?c=5293914",
"signupUrl": "http://10.30.140.11:8000/clt/clt/activitySignup.msp?c=5293914&activityId=5293914"
},
{
"name": "11122",
"startTime": "2017-08-09 09:03",
"endTime": "2018-07-25 09:03",
"address": "发放稿费",
"isStart": "1",
"isEnd": "1",
"signupNum": "11",
"imageUrl": "http://10.30.140.11:8000/clt/publish/clt//image/4/475/774.jpg",
"displayType": "0",
"url": "http://10.30.140.11:8000/clt/publish/clt/resource/portal/v1/activityDetail.jsp?c=4696044",
"signupUrl": "http://10.30.140.11:8000/clt/clt/activitySignup.msp?c=4696044&activityId=4696044"
}
]
}
其次我们贴出 controller中的代码,这里的代码使用了 OC的MJRefresh的代码，如果不需要可以自行去掉
import UIKit
class MActivityViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
fileprivate var currentTabelView:UITableView?
fileprivate var dataModel:MyActivityListModel?
fileprivate var dataArray:NSMutableArray?
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = UIColor.white
//headerView
let headerView = HeaderNavigationView.init()
headerView.titleString = "我的活动"
headerView.isShowLineView = true
if isIphoneXSeries() {
headerView.frame = CGRect(x: 0, y: 0, width: SCREEN_WIDTH, height: 88)
} else {
headerView.frame = CGRect(x: 0, y: 0, width: SCREEN_WIDTH, height: 64)
}
self.view.addSubview(headerView)
// footerView
let footerView = GeneralBottomView.init()
if isIphoneXSeries() {
footerView.frame = CGRect(x: 0, y: self.view.frame.size.height - 60, width: SCREEN_WIDTH, height: 60)
} else {
footerView.frame = CGRect(x: 0, y: self.view.frame.size.height - 40, width: SCREEN_WIDTH, height: 40)
}
weak var weakSelf = self
footerView.setBackMyClosure{ () -> Void in
weakSelf?.navigationController?.popViewController(animated: true)
}
self.view.addSubview(footerView)
self.currentTabelView = UITableView.init(frame: CGRect(x: 0, y: headerView.frame.maxY, width: SCREEN_WIDTH, height: self.view.frame.size.height - headerView.frame.height - footerView.frame.height))
self.view.addSubview(self.currentTabelView!)
self.currentTabelView!.backgroundColor = UIColor.white
self.currentTabelView!.separatorStyle = UITableViewCellSeparatorStyle.none
//设置数据源
self.currentTabelView!.dataSource = self
//设置代理
self.currentTabelView!.delegate = self
self.currentTabelView!.register(UITableViewCell.classForCoder(), forCellReuseIdentifier: "MyactivityTableViewCell")
self.dataArray = NSMutableArray.init()
self.currentTabelView?.mj_header = XWRefreshHeader.init(refreshingBlock: {
//请求数据
weakSelf?.loadNewData()
})
self.currentTabelView?.mj_header.beginRefreshing()
}
//MARK:请求新的数据
func loadNewData(){
let urlString = String(format: "%@%@", CZTV_Foundation_URL, Cztv_ActivityList_url)
//加密
let serverString = EncryptUrl.sharedInstance.encryptUrlWithOriginalUrl(originalUrl: urlString)
let parameters:[String : Any] = [:]
weak var weakSelf = self
SwiftNetWorkManager.sharedInstance.postRequest(serverString, params: parameters, success: { (dictResponse) in
// print("我参加活动的数据是\(jsonString)")
weakSelf?.currentTabelView?.mj_header.endRefreshing()
let loaclData = dictResponse as Data
do {
weakSelf?.dataModel = try JSONDecoder().decode(MyActivityListModel.self, from: loaclData)
// debugPrint("student====\(self.dataModel!.activityList)")
weakSelf?.currentTabelView?.reloadData()
} catch {
// debugPrint("student===ERROR")
}
}) { (error) in
// print("-----错误是\(error)")
if error._code == NSURLErrorTimedOut {
//超时
FSHUDMananger.showMessage("请求超时，请稍后再试", completion: nil)
} else {
FSHUDMananger.showMessage("服务器出了点小问题，请稍后再试", completion: nil)
}
}
}
//MARK:加载tabelView
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if self.dataModel == nil{
return 0
}
if self.dataModel!.activityList.count != 0 {
return self.dataModel!.activityList.count
}
return 0;
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let indentifier = "MyactivityTableViewCell"
var cell:MyactivityTableViewCell! = tableView.dequeueReusableCell(withIdentifier: indentifier)as?MyactivityTableViewCell
if cell == nil {
cell = MyactivityTableViewCell(style: .default, reuseIdentifier: indentifier)
}
cell.selectionStyle = UITableViewCell.SelectionStyle.none
cell.detailModel = self.dataModel!.activityList[indexPath.row] as DetailModel
return cell
}
//MARK:加载tabelView的代理
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let detailModel = self.dataModel!.activityList[indexPath.row] as DetailModel
let detailVC : XWActivityDetailViewController = XWActivityDetailViewController.init(activityName: detailModel.name, url: detailModel.url)
self.navigationController?.pushViewController(detailVC, animated: true)
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return MyactivityTableViewCell.myactivityTableViewCellHeight()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
deinit {
}
}
从以上的controller的代码中我们看到了 网络请求的封装。以下就是封装的网络请求的代码,代码使用了单例保证调用的一次性，回调使用的闭包的方式，简化controller中的代码调用
import UIKit
import Alamofire
public typealias Success = (_ data : Data)->()
public typealias Failure = (_ error : Error)->()
class SwiftNetWorkManager: NSObject {
//单例
static var sharedInstance : SwiftNetWorkManager {
struct Static {
static let instance : SwiftNetWorkManager = SwiftNetWorkManager()
}
return Static.instance
}
/// GET请求
func getRequest(
_ urlString: String,
params: Parameters? = nil,
success: @escaping Success,
failure: @escaping Failure)
{
request(urlString, params: params, method: .get, success, failure)
}
/// POST请求
func postRequest(
_ urlString: String,
params: Parameters? = nil,
success: @escaping Success,
failure: @escaping Failure)
{
request(urlString, params: params, method: .post, success, failure)
}
//公共的私有方法
private func request(
_ urlString: String,
params: Parameters? = nil,
method: HTTPMethod,
_ success: @escaping Success,
_ failure: @escaping Failure)
{
let manager = Alamofire.SessionManager.default
manager.session.configuration.timeoutIntervalForRequest = 10
manager.request(urlString, method: method, parameters:params).responseData { response in
guard let json = response.result.value else {
return
}
switch (response.result) {
case .success:
success(response.data! as Data)
break
case .failure(let error):
failure(error)
break
}
}
}
}
在controller中，我们还有model的数据，其中model的解析采用 苹果原生的 Codable方式，以下贴出model的代码,数据的第一层是数组
import Foundation
struct MyActivityListModel:Codable {
var activityList:[DetailModel] = []
}
struct DetailModel:Codable {
var address:String
var displayType: String
var endTime:String
var imageUrl:String
var isEnd:String
var isStart:String
var name:String
var signupNum:String
var signupUrl:String
var startTime:String
var url:String
}
其中还涉及到了 cell的部分，以下是cell中的代码,cell中包含初始化控件，set方法辅助，还有计算cell的高度 类方法
import UIKit
class MyactivityTableViewCell: UITableViewCell {
fileprivate var titleLabel:UILabel? // 活动标题
fileprivate var timeView:ActivityLabelView? // 开始-结束 时间
fileprivate var addressView:ActivityLabelView? // 活动地址
fileprivate var signupNumView:ActivityLabelView? // 报名人数
override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.backgroundColor = UIColor.white
self.titleLabel = UILabel.init(frame: CGRect(x: 10, y: 10, width: SCREEN_WIDTH, height: 28))
self.titleLabel?.font = UIFont.systemFont(ofSize: 22)
self.titleLabel?.textColor = UIColor.black
self.titleLabel?.textAlignment = NSTextAlignment.left
self.contentView.addSubview(self.titleLabel!)
self.timeView = ActivityLabelView.init(frame: CGRect(x: 10, y: self.titleLabel!.frame.maxY + 10, width: SCREEN_WIDTH - 20, height: 12))
self.timeView?.leftImageNameStr = "activity_time"
self.contentView.addSubview(self.timeView!)
self.addressView = ActivityLabelView.init(frame: CGRect(x: 10, y: self.timeView!.frame.maxY + 10, width: SCREEN_WIDTH - 20, height: 12))
self.addressView?.leftImageNameStr = "activity_add"
self.contentView.addSubview(self.addressView!)
self.signupNumView = ActivityLabelView.init(frame: CGRect(x: 10, y: self.addressView!.frame.maxY + 10, width: SCREEN_WIDTH - 20, height: 12))
self.signupNumView?.leftImageNameStr = "activity_num"
self.contentView.addSubview(self.signupNumView!)
let bottomLineView = UIView.init(frame: CGRect(x: 0, y: self.signupNumView!.frame.maxY + 10, width: SCREEN_WIDTH, height: 10))
bottomLineView.backgroundColor = UIColor.init(white: 0.95, alpha: 1)
self.contentView.addSubview(bottomLineView)
}
//set赋值方法
var detailModel:DetailModel? {
didSet{
self.titleLabel?.text = detailModel!.name
self.timeView?.rightString = "\(String(describing: detailModel!.startTime)) —— \(String(describing:detailModel!.endTime))"
self.addressView?.rightString = detailModel!.address
self.signupNumView?.rightString = "\(String(describing:detailModel!.signupNum))已报名"
}
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
//MARK: cell的高度
class func myactivityTableViewCellHeight() -> CGFloat{
return 10 + 28 + 10 + 12 + 10 + 12 + 10 + 12 + 10 + 10;
}
}
事实上这个已经是个完整的“简单”的swift版本的请求，解析，赋值，布局tableView的过程。
如果有什么不正确之处，望大神指出，谢谢。!
效果图
DDC8590B88C67223572E8801DCF4E305.png
