Swift3.0 今日(TodayExtension)扩展图文笔记
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>图片1(创建今日扩展)
>图片2
>图片3(设置大小)
>图片4(绘画控件)
>图片5(设置共享文件)
>图片6(设置群组ID)
>图片7(设置URL Schemes)
>扩展中的主要逻辑代码
class TodayViewController: UIViewController, NCWidgetProviding,UITableViewDelegate,UITableViewDataSource { @IBOutlet weak var tableView: UITableView! var newsList = [NewsModel]() lazy var moreBtn:UIButton = { let btn = UIButton(frame: CGRect(x: 0, y: 0, width: self.view.bounds.size.width, height: 44)) btn.setTitle("查看更多", for:.normal) btn.addTarget(self, action: #selector(gotoMainApp), for: .touchUpInside) btn.backgroundColor = UIColor(red:245/255.0, green:74/255.0, blue:48/255.0, alpha: 1) return btn }() func gotoMainApp(){ //跳转到主程序的代码(见图7) self.extensionContext?.open(URL(string:"WidgetApp://action=GotoNewsListPage")!, completionHandler: { (suc:Bool) in }) } override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(true) updateView() } //刷新界面 func updateView(){ if newsList.count != 0{ newsList.removeAll() } //通过UserDefaults从组里面获取共享数据(见图6) let ud = UserDefaults(suiteName: "group.centaHouse"); if let nickName = ud?.array(forKey: "group.centaHouse.centaToday"){ for (_,element) in nickName.enumerated() { if let edic = element as? [String : Any]{ let nm = NewsModel() nm.setValuesForKeys(edic) newsList.append(nm) } } self.tableView.reloadData() if newsList.count != 0 { self.tableView.tableFooterView = self.moreBtn } //判断在不同数据下展示界面的视图大小(不处理的话,展开和折叠会出问题) if #available(iosApplicationExtension 10.0, *) { if extensionContext?.widgetActiveDisplayMode == .compact{ //压缩状态 // if newsList.count != 0 { // UIView.animate(withDuration: 0.1, animations: { // self.preferredContentSize = CGSize(width: self.view.bounds.width, height: CGFloat(self.newsList.count*100 + 44)) // }) // } }else{//展开状态 if newsList.count != 0 { UIView.animate(withDuration: 0.1, animations: { self.preferredContentSize = CGSize(width: self.view.bounds.width, height: CGFloat(self.newsList.count*100 + 44)) }) } } } else { // Fallback on earlier versions } } } override func viewDidLoad() { super.viewDidLoad() self.tableView.delegate = self self.tableView.dataSource = self //注册自定义cell let nib = UINib(nibName: "NewsInfoCell", bundle: nil) self.tableView.register(nib, forCellReuseIdentifier: "NewsInfoCell") //设置今日扩展模式为可张开收缩模式(IOS10以后支持,进入扩展右上角显示"展开"和"折叠") if #available(iOSApplicationExtension 10.0, *) { self.extensionContext?.widgetLargestAvailableDisplayMode = .expanded } else { // Fallback on earlier versions }; } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return newsList.count } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { //新闻列表 let cell = tableView.dequeueReusableCell(withIdentifier: "NewsInfoCell") as! NewsInfoCell cell.news = newsList[indexPath.row] return cell } func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { tableView.deselectRow(at: indexPath, animated: true) let url = newsList[indexPath.row].ShowNewsUrl extensionContext?.open(URL(string:"WidgetApp://action=Goto-\\(url)")!, completionHandler: { (suc:Bool) in }) } func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat { return 95; } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. } //监听扩展的展开和收缩状态处理视图的大小 /** * @maxSize 界面能够显示的最小和最大尺寸(最小状态下是110) * @activeDisplayMode: 张开和收缩状态 **/ @available(iOSApplicationExtension 10.0, *) func widgetActiveDisplayModeDidChange(_ activeDisplayMode: NCWidgetDisplayMode, withMaximumSize maxSize: CGSize) { if(activeDisplayMode == .compact){ self.preferredContentSize = CGSize(width: maxSize.width, height: maxSize.height) }else{ self.preferredContentSize = CGSize(width: maxSize.width, height: CGFloat(newsList.count*100 + 44)) } } //自行看官方注释 func widgetPerformUpdate(completionHandler: (@escaping (NCUpdateResult) -> Void)) { // Perform any setup necessary in order to update the view. // If an error is encountered, use NCUpdateResult.Failed // If there\'s no update required, use NCUpdateResult.NoData // If there\'s an update, use NCUpdateResult.NewData if #available(iOSApplicationExtension 10.0, *) { if extensionContext?.widgetActiveDisplayMode == .compact{ completionHandler(NCUpdateResult.newData) }else{ completionHandler(NCUpdateResult.noData) } } else { // Fallback on earlier versions completionHandler(NCUpdateResult.newData) } } }
#pragma mark app跳转 (今日通知栏) -(BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation{ NSString* prefix = @"WidgetApp://action="; if ([[url absoluteString] rangeOfString:prefix].location != NSNotFound) { NSString* action = [[url absoluteString] substringFromIndex:prefix.length]; if ([action isEqualToString:@"Goto-"]) { ...... }else{ ...... } } return [WXApi handleOpenURL:url delegate:[WXApiManager sharedManager]]; }
//在主程序保存需要展示的数据 func extentionUpdate(){ //group.cenXXX 组名 if let user = UserDefaults(suiteName: "group.cenXXX") { //扩展标识符 user.set(objArray, forKey: "group.cenXXX.cenToday") } }
>收缩状态
>展开状态
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