>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, 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( 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( 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( maxSize.width, height: maxSize.height)
}else{
self.preferredContentSize = CGSize( 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
