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iOS10添加本地推送(Local Notification)實例

編輯:IOS開發綜合

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。

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支持本站。

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