先上效果图
再上源码
1. 对于URLSession做了个简单的封装,用来请求网络数据
import Foundation class LJDownLoadNetImage: NSObject { static func request(_ method: String,url: String,callback: @escaping (_ data: Data?,_ response: URLResponse?,_ error: Error?) -> Void) { let session = URLSession.shared let request = NSMutableURLRequest(url: NSURL(string: url)! as URL) request.httpMethod = method let task = session.dataTask(with: request as URLRequest,completionHandler: { (data,response,error) -> Void in callback(data,error) }) task.resume() } }
import UIKit class TFNetImageViewController: TFBaseViewController,UITableViewDataSource,UITableViewDelegate{ var TFTableView:UITableView! var titleItemArray = ["姓名","账号","爱好","职业","年薪"] var imageUrlArray = ["http://pica.nipic.com/2007-12-12/20071212235955316_2.jpg","http://hangge.com/blog/images/logo.png","https://www.iphonetrain.com/core/res/images/logo.png","http://pica.nipic.com/2007-12-12/20071212235955316_2.jpg","http://pica.nipic.com/2007-12-12/20071212235955316_2.jpg"]; override func viewDidLoad() { super.viewDidLoad() self.setTopNavBarTitle("个人信息") self.setTopNavBackButton() self.view.backgroundColor = UIColor.lightGray self.creatTable() } func creatTable(){ TFTableView = UITableView(frame: CGRect(x: 0,y: 64,width: AppWidth,height: AppHeight - 64),style:UITableViewStyle.grouped); TFTableView.delegate = self; TFTableView.dataSource = self; self.view.addSubview(TFTableView); TFTableView.register(TFNetImageTableViewCell.self,forCellReuseIdentifier: "identtifier") } //MARK: UITableViewDataSource func numberOfSections(in tableView: UITableView) -> Int { return 1; } func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int { return 5; } func tableView(_ tableView: UITableView,heightForRowAt indexPath: IndexPath) -> CGFloat{ return 55; } func tableView(_ tableView: UITableView,heightForHeaderInSection section: Int) -> CGFloat { return 10; } func tableView(_ tableView: UITableView,heightForFooterInSection section: Int) -> CGFloat { return 1; } func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cellIdentifier : String = "identtifier" let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier) as! TFNetImageTableViewCell let urlStr = "https://raw.githubusercontent.com/onevcat/Kingfisher/master/images/kingfisher-\(indexPath.row + 1).jpg" //cell.setCellData((titleItemArray[indexPath.row] as NSString) as String,imageUrlStr: imageUrlArray[indexPath.row]) cell.setCellData(titleItemArray[indexPath.row],imageUrlStr: urlStr) return cell } //MARK: UITableViewDelegate func tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) { tableView.deselectRow(at: indexPath,animated: true); } }
cell的代码
import UIKit class TFNetImageTableViewCell: UITableViewCell { var titleImage : UIImageView! var titleLabel : UILabel! override init(style: UITableViewCellStyle,reuseIdentifier: String?) { super.init(style: style,reuseIdentifier: reuseIdentifier) self.creatCell() } required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") } override func setSelected(_ selected: Bool,animated: Bool) { super.setSelected(selected,animated: animated) self.selectionStyle = UITableViewCellSelectionStyle.none // Configure the view for the selected state } func creatCell(){ //http://pica.nipic.com/2007-12-12/20071212235955316_2.jpg //设置label titleLabel = UILabel(frame: CGRect(x: 60,y: 18,width: 40,height: 14)) titleLabel.textAlignment = NSTextAlignment.center titleLabel.font = UIFont.systemFont(ofSize: 14.0) self.contentView.addSubview(titleLabel) /* 1. 直接加载本地的图片 */ /* titleImage = UIImageView(frame: CGRect(x: 0,y: 5,height: 40)) titleImage.image = UIImage(named: "unicorn.png") titleImage.backgroundColor = UIColor.red; self.contentView.addSubview(titleImage) */ /* 2. 加载网络图片 */ /* //定义NSURL对象 let url = NSURL.init(string: "http://hangge.com/blog/images/logo.png") //从网络获取数据流 let data = NSData(contentsOf: url! as URL) //此处如果data有值的话,才去初始化image if (data != nil) { //通过数据流初始化图片 let newImage = UIImage(data: data! as Data) let titleImage = UIImageView(frame: CGRect(x: 0,height: 40)) titleImage.image = newImage self.contentView.addSubview(titleImage) } else{ /* 直接加载本地的图片 */ titleImage = UIImageView(frame: CGRect(x: 0,height: 40)) titleImage.image = UIImage(named: "unicorn.png") titleImage.backgroundColor = UIColor.red; self.contentView.addSubview(titleImage) } */ } func setCellData(_ labelNameStr:String,imageUrlStr:String) { titleLabel.text = labelNameStr as String /* 3. 利用封装的URLSession加载网络图片 */ LJDownLoadNetImage.request("GET",url: imageUrlStr) { (data,error) in //此处如果data有值的话,才去初始化image if (data != nil) { let newImage = UIImage(data: data! as Data) let titleImage = UIImageView(frame: CGRect(x: 0,height: 40)) titleImage.image = newImage self.contentView.addSubview(titleImage) } } /* //定义NSURL对象 let url = NSURL.init(string: imageUrlStr) //从网络获取数据流 let data = NSData(contentsOf: url! as URL) //此处如果data有值的话,才去初始化image if (data != nil) { //通过数据流初始化图片 let newImage = UIImage(data: data! as Data) let titleImage = UIImageView(frame: CGRect(x: 0,height: 40)) titleImage.image = newImage self.contentView.addSubview(titleImage) } else{ /* 直接加载本地的图片 */ titleImage = UIImageView(frame: CGRect(x: 0,height: 40)) titleImage.image = UIImage(named: "unicorn.png") titleImage.backgroundColor = UIColor.red; self.contentView.addSubview(titleImage) } */ } }原文链接:https://www.f2er.com/swift/321509.html