iOS10添加本地推送（Local Notification）实例

#import <UserNotifications/UserNotifications.h>
#import "AppDelegate.h"
@interface AppDelegate ()<UNUserNotificationCenterDelegate>

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 // 使用 UNUserNotificationCenter 来管理通知
 UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
 //监听回调事件
 center.delegate = self;
 
 //iOS 10 使用以下方法注册，才能得到授权
 [center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert   UNAuthorizationOptionSound)
       completionHandler:^(BOOL granted, NSError * _Nullable error) {
        // Enable or disable features based on authorization.
       }];
 
 //获取当前的通知设置，UNNotificationSettings 是只读对象，不能直接修改，只能通过以下方法获取
 [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
  
 }];
 return YES;
}

#pragma mark - UNUserNotificationCenterDelegate
//在展示通知前进行处理，即有机会在展示通知前再修改通知内容。
-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler{
 //1. 处理通知
 
 //2. 处理完成后条用 completionHandler ，用于指示在前台显示通知的形式
 completionHandler(UNNotificationPresentationOptionAlert);
}
@end

//使用 UNNotification 本地通知
 (void)registerNotification:(NSInteger )alerTime{
 
 // 使用 UNUserNotificationCenter 来管理通知
 UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter];
 
 //需创建一个包含待通知内容的 UNMutableNotificationContent 对象，注意不是 UNNotificationContent ,此对象为不可变对象。
 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];
 
 //添加推送成功后的处理！
 [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];
 }];
}

  (void)registerLocalNotificationInOldWay:(NSInteger)alertTime {
 // ios8后，需要添加这个注册，才能得到授权
 // if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) {
 // UIUserNotificationType type = UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound;
 // UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type
 // categories:nil];
 // [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
 // // 通知重复提示的单位，可以是天、周、月
 // }
 
 UILocalNotification *notification = [[UILocalNotification alloc] init];
 // 设置触发通知的时间
 NSDate *fireDate = [NSDate dateWithTimeIntervalSinceNow:alertTime];
 NSLog(@"fireDate=%@",fireDate);
 
 notification.fireDate = fireDate;
 // 时区
 notification.timeZone = [NSTimeZone defaultTimeZone];
 // 设置重复的间隔
 notification.repeatInterval = kCFCalendarUnitSecond;
 
 // 通知内容
 notification.alertBody = @"该起床了...";
 notification.applicationIconBadgeNumber = 1;
 // 通知被触发时播放的声音
 notification.soundName = UILocalNotificationDefaultSoundName;
 // 通知参数
 NSDictionary *userDict = [NSDictionary dictionaryWithObject:@"开始学习iOS开发了" forKey:@"key"];
 notification.userInfo = userDict;
 
 // ios8后，需要添加这个注册，才能得到授权
 if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) {
  UIUserNotificationType type = UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound;
  UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type
                     categories:nil];
  [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
  // 通知重复提示的单位，可以是天、周、月
  notification.repeatInterval = NSCalendarUnitDay;
 } else {
  // 通知重复提示的单位，可以是天、周、月
  notification.repeatInterval = NSDayCalendarUnit;
 }
 
 // 执行通知注册
 [[UIApplication sharedApplication] scheduleLocalNotification:notification];
}