前言
iOS 10 中廢棄了 UILocalNotification ( UIKit Framework ) 這個類,采用了全新的 UserNotifications Framework 來推送通知,從此推送通知也有了自己的標簽 UN (這待遇真是沒別人了),以及對推送功能的一系列增強改進(兩個 extension 和 界面的體驗優化),簡直是蘋果的親兒子,因此推送這部分功能也成為開發中的重點。
本文主要查看了 iOS 10 的相關文檔,整理出了在 iOS 10 下的本地推送通知,由於都是代碼,就不多做講解,直接看代碼及注釋,有問題留言討論哦。
新的推送注冊機制
注冊通知( Appdelegate.m ):
#import <UserNotifications/UserNotifications.h> #import "AppDelegate.h" @interface AppDelegate ()<UNUserNotificationCenterDelegate> @end @implementation AppDelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // 使用 UNUserNotificationCenter 來管理通知 UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter]; //監聽回調事件 center.delegate = self; //iOS 10 使用以下方法注冊,才能得到授權 [center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert + UNAuthorizationOptionSound) completionHandler:^(BOOL granted, NSError * _Nullable error) { // Enable or disable features based on authorization. }]; //獲取當前的通知設置,UNNotificationSettings 是只讀對象,不能直接修改,只能通過以下方法獲取 [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) { }]; return YES; } #pragma mark - UNUserNotificationCenterDelegate //在展示通知前進行處理,即有機會在展示通知前再修改通知內容。 -(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler{ //1. 處理通知 //2. 處理完成後條用 completionHandler ,用於指示在前台顯示通知的形式 completionHandler(UNNotificationPresentationOptionAlert); } @end
推送本地通知
//使用 UNNotification 本地通知 +(void)registerNotification:(NSInteger )alerTime{ // 使用 UNUserNotificationCenter 來管理通知 UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter]; //需創建一個包含待通知內容的 UNMutableNotificationContent 對象,注意不是 UNNotificationContent ,此對象為不可變對象。 UNMutableNotificationContent* content = [[UNMutableNotificationContent alloc] init]; content.title = [NSString localizedUserNotificationStringForKey:@"Hello!" arguments:nil]; content.body = [NSString localizedUserNotificationStringForKey:@"Hello_message_body" arguments:nil]; content.sound = [UNNotificationSound defaultSound]; // 在 alertTime 後推送本地推送 UNTimeIntervalNotificationTrigger* trigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:alerTime repeats:NO]; UNNotificationRequest* request = [UNNotificationRequest requestWithIdentifier:@"FiveSecond" content:content trigger:trigger]; //添加推送成功後的處理! [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) { UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"本地通知" message:@"成功添加推送" preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]; [alert addAction:cancelAction]; [[UIApplication sharedApplication].keyWindow.rootViewController presentViewController:alert animated:YES completion:nil]; }]; }
iOS 10 以前本地推送通知:
+ (void)registerLocalNotificationInOldWay:(NSInteger)alertTime { // ios8後,需要添加這個注冊,才能得到授權 // if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) { // UIUserNotificationType type = UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound; // UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type // categories:nil]; // [[UIApplication sharedApplication] registerUserNotificationSettings:settings]; // // 通知重復提示的單位,可以是天、周、月 // } UILocalNotification *notification = [[UILocalNotification alloc] init]; // 設置觸發通知的時間 NSDate *fireDate = [NSDate dateWithTimeIntervalSinceNow:alertTime]; NSLog(@"fireDate=%@",fireDate); notification.fireDate = fireDate; // 時區 notification.timeZone = [NSTimeZone defaultTimeZone]; // 設置重復的間隔 notification.repeatInterval = kCFCalendarUnitSecond; // 通知內容 notification.alertBody = @"該起床了..."; notification.applicationIconBadgeNumber = 1; // 通知被觸發時播放的聲音 notification.soundName = UILocalNotificationDefaultSoundName; // 通知參數 NSDictionary *userDict = [NSDictionary dictionaryWithObject:@"開始學習iOS開發了" forKey:@"key"]; notification.userInfo = userDict; // ios8後,需要添加這個注冊,才能得到授權 if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) { UIUserNotificationType type = UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound; UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type categories:nil]; [[UIApplication sharedApplication] registerUserNotificationSettings:settings]; // 通知重復提示的單位,可以是天、周、月 notification.repeatInterval = NSCalendarUnitDay; } else { // 通知重復提示的單位,可以是天、周、月 notification.repeatInterval = NSDayCalendarUnit; } // 執行通知注冊 [[UIApplication sharedApplication] scheduleLocalNotification:notification]; }
本文已被整理到了《iOS推送教程》,歡迎大家學習閱讀。
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