Swift - 设置应用程序图标的提醒个数(右上角小红圈)
使用UILocalNotification除了可以实现本地消息的推送功能(可以设置推送内容,推送时间,提示音),还可以设置应用程序右上角的提醒个数。
--- ViewController.swift ---
原文出自:www.hangge.com 转载请保留原文链接:http://www.hangge.com/blog/cache/detail_796.html
下面演示如何设置,效果图如下:
--- AppDelegate.swift ---
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import UIKit @UIApplicationMain class AppDelegate : UIResponder , UIApplicationDelegate { var window: UIWindow ? func application(_ application: UIApplication , didFinishLaunchingWithOptions launchOptions: [ UIApplicationLaunchOptionsKey : Any ]?) -> Bool { //开启通知 let settings = UIUserNotificationSettings (types: [.alert, .badge, .sound], categories: nil ) application.registerUserNotificationSettings(settings) return true } func applicationWillResignActive(_ application: UIApplication ) { } func applicationDidEnterBackground(_ application: UIApplication ) { } func applicationWillEnterForeground(_ application: UIApplication ) { } func applicationDidBecomeActive(_ application: UIApplication ) { } func applicationWillTerminate(_ application: UIApplication ) { } } |
--- ViewController.swift ---
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import UIKit class ViewController : UIViewController { override func viewDidLoad() { super .viewDidLoad() //发送通知消息 scheduleNotification(); } //发送通知消息 func scheduleNotification(){ //清除所有本地推送 UIApplication .shared.cancelAllLocalNotifications() //创建UILocalNotification来进行本地消息通知 let localNotification = UILocalNotification () //设置应用程序右上角的提醒个数 localNotification.applicationIconBadgeNumber = 78; UIApplication .shared.scheduleLocalNotification(localNotification) } override func didReceiveMemoryWarning() { super .didReceiveMemoryWarning() } } |
原文出自:www.hangge.com 转载请保留原文链接:http://www.hangge.com/blog/cache/detail_796.html