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，由于都是代碼，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. 處理完成后條用 completionHandler ，用于指示在前臺顯示通知的形式
completionHandler(UNNotificationPresentationOptionAlert);

}
@end
</code></pre> 
  
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 后推送本地推送
UNTimeIntervalNotificationTrigger* trigger = [UNTimeIntervalNotificationTrigger

triggerWithTimeInterval:alerTime repeats:NO];

UNNotificationRequest* request = [UNNotificationRequest requestWithIdentifier:@"FiveSecond"

content:content trigger:trigger];

//添加推送成功后的處理！
[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];
}];

}
</code></pre> 
  
iOS 10 以前本地推送通知：
 
  
+ (void)registerLocalNotificationInOldWay:(NSInteger)alertTime {
    // ios8后，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后，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];

}
</code></pre> 
  
 
 
  
來自：http://www.daizi.me/2016/07/01/iOS 10 添加本地推送（Local Notification)/