iOS本地通知的实现

一、iOS8之前的本地通知实现

iOS8之前的版本无需系统注册本地通知（表现为用户手动允许接受通知），则本地通知实现较为简单。
1、设置一个通知并触发

localNotif.alertBody = @"test"; //NSDictionary *userInfo = [NSDictionary dictionaryWithObject:EightPMNotification forKey:EightPMNotification];localNotif.userInfo = userInfo;localNotif.fireDate = fireDate;localNotif.timeZone = [NSTimeZone defaultTimeZone];localNotif.repeatInterval = 0;localNotif.soundName = LocalNotificationSoundForSign;[[UIApplication sharedApplication] scheduleLocalNotification:localNotif];

2、取消一个通知

// 获取所有本地通知数组NSArray *localNotifications = [UIApplication sharedApplication].scheduledLocalNotifications;for (UILocalNotification *notification in localNotifications) {    NSDictionary *userInfo = notification.userInfo;    if (userInfo) {        // 根据设置通知参数时指定的key来获取通知参数        NSString *info = userInfo[key];        // 如果当天多个账号有效触发通知，index会累加，但是只能有一个有效，所以当取消的时候，要--        if (info != nil) {            [[UIApplication sharedApplication] cancelLocalNotification:notification];            NSLog(@"YYDebug:取消%@",info);            break;        }    }}

3、程序还在后台，监听点击通知

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification

4、程序终止，监听点击通知

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions- //根据launchOption来判断是否是收到指定的通知-     if (launchOptions) {    UILocalNotification *notification = launchOptions[UIApplicationLaunchOptionsLocalNotificationKey];    NSDictionary *localUserInfo = [notification userInfo];    if ([[localUserInfo objectForKey:EightPMNotification] isEqualToString:EightPMNotification]||[[localUserInfo objectForKey:EveryDayNotification] isEqualToString:EveryDayNotification]) {        self.launchOptions = launchOptions;        NSLog(@"YYDebug:通过点击终止的App推送签到");        [self setLocalNotificationsBySignTime];    }}

二、iOS10本地通知

首先需要注册，之前的通知都在UIKit框架中，现在在

#import <UserNotifications/UserNotifications.h>还要遵循<UNUserNotificationCenterDelegate>

1、注册本地通知

UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];center.delegate = self;[center requestAuthorizationWithOptions:UNAuthorizationOptionAlert|UNAuthorizationOptionSound completionHandler:^(BOOL granted, NSError * _Nullable error) {    if (granted) {        NSLog(@"YY:允许通知触发");    }else{        NSLog(@"YY:不允许通知触发");    }}];

2、设置本地通知

UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];    UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];    //触发通知    content.title = [NSString stringWithFormat:@"%@天气情况简报",self.cityName];    content.body = [NSString stringWithFormat:@"今日天气%@,当前温度温度%@",dict2[@"type"],dict1[@"data"][@"wendu"]];    content.sound = [UNNotificationSound defaultSound];    content.userInfo = [NSDictionary dictionaryWithObject:key forKey:@"cityName"];    NSInteger unitFlag = NSCalendarUnitYear|NSCalendarUnitMonth|NSCalendarUnitDay|NSCalendarUnitHour|NSCalendarUnitMinute|NSCalendarUnitSecond;    NSDateComponents *cmps = [[NSCalendar currentCalendar] components:unitFlag fromDate:remindDate];    UNCalendarNotificationTrigger *trigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:cmps repeats:NO];    UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:key content:content trigger:trigger];    [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {        NSLog(@"设置成功");    }];