日记类项目 提醒写日记 功能实现

输出 做了写总结之后才是自己的
// 注册通知
Appdelegate 中注册

#import <UserNotifications/UserNotifications.h>

   [self registerAPN];

-(void)registerAPN{
    // ios 10
    if (@available(iOS 10.0, *)) { // iOS10 以上
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        [center requestAuthorizationWithOptions:(UNAuthorizationOptionAlert + UNAuthorizationOptionSound) completionHandler:^(BOOL granted, NSError * _Nullable error) {
            
        }];
        
    }else{
        
           [self setUserNotifacationSettiings:[UIApplication sharedApplication]];
    }
    
    
}


- (void)setUserNotifacationSettiings:(UIApplication *)application {
    UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge|UIUserNotificationTypeAlert|UIUserNotificationTypeSound categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:setting];
}

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{
    
    
    
    NSLog(@"接收到了通知== %@== %@",notification.alertBody,notification.alertTitle);
}

使用通知 发送通知 存在userdefaults 中是否打开 开关

- (void)setnotifactionsWithDate:(NSString*)date{
    
 
    
  NSString *switchstr =  [[NSUserDefaults standardUserDefaults]objectForKey:@"switch"];
    if ([switchstr isEqualToString:@"on"]) {
        [self setLocalnonification:date];
    }

}

- (void)setLocalnonification:(NSString *)date{
    
    if (@available(iOS 10.0, *)) {
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
        // 标题
        content.title = @"该写日记了";
        content.subtitle = @"打开";
        
        NSDateComponents *components = [[NSDateComponents alloc] init];
        // 注意，weekday默认是从周日开始
      
        NSArray *datearray = [date componentsSeparatedByString:@":" ];
        components.hour = [datearray[0] integerValue];
        components.minute = [datearray[1] integerValue];
        
        
        UNCalendarNotificationTrigger *calendarTrigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:components repeats:YES];
        
        NSString *identifier = @"noticeId";
        UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:identifier content:content trigger:calendarTrigger];
        
        [center addNotificationRequest:request withCompletionHandler:^(NSError *_Nullable error) {
            NSLog(@"成功添加推送");
        }];
        
      
        
    
    }else{
    
    
    UILocalNotification *localNotification = [[UILocalNotification alloc] init];
    //设置时区（跟随手机的时区）
    localNotification.timeZone = [NSTimeZone defaultTimeZone];
    if (localNotification) {
        localNotification.alertBody = @"该写日记了";
        localNotification.alertAction = @"打开";
        //小图标数字
        localNotification.applicationIconBadgeNumber = 1;
        
        date = [NSString stringWithFormat:@"%@:00",date];
        localNotification.applicationIconBadgeNumber = 0;
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateFormat:@"HH:mm:ss"];
        NSDate *dateda = [formatter dateFromString:date];
        //        [formatter dateFromString:@"22:15:50"];
        //通知发出的时间
        NSLog(@"----%@",dateda);
        localNotification.fireDate = dateda;
        //        [NSDate dateWithTimeIntervalSinceNow:3];
        //        date;
    }
    //循环通知的周期
    localNotification.repeatInterval = kCFCalendarUnitDay;
    
    //设置userinfo方便撤销
    NSDictionary *info = [NSDictionary dictionaryWithObject:@"name" forKey:@"key"];
    localNotification.userInfo = info;
    //启动任务
    [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
    
    }
}

关闭的时候 在这里我用的是移出所有的通知 因为我在这个项目中只用到了本地写日记提醒这一个通知

- (void)cancelnotifaction{
//     移出所有的通知
    if (@available(iOS 10.0, *)) {
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        [center removeAllPendingNotificationRequests];
    }else {
        [[UIApplication sharedApplication] cancelAllLocalNotifications];
    }
    
   
    
//    [[UIApplication sharedApplication] cancelAllLocalNotifications];
}


- (void)checkUserNotificationEnable { // 判断用户是否允许接收通知
    if (@available(iOS 10.0, *)) {
        __block BOOL isOn = NO;
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
            if (settings.notificationCenterSetting == UNNotificationSettingEnabled) {
                isOn = YES;
                NSLog(@"打开了通知");
            }else {
                isOn = NO;
                NSLog(@"关闭了通知");
                [self showAlertView];
            }
        }];
    }else {
        if ([[UIApplication sharedApplication] currentUserNotificationSettings].types == UIUserNotificationTypeNone){
            NSLog(@"关闭了通知");
            [self showAlertView];
        }else {
            NSLog(@"打开了通知");
        }
    }
}

- (void)showAlertView {
    UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"通知" message:@"未获得通知权限，请前去设置" preferredStyle:UIAlertControllerStyleAlert];
    [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil]];
    [alert addAction:[UIAlertAction actionWithTitle:@"设置" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        [self goToAppSystemSetting];
    }]];
    [self presentViewController:alert animated:YES completion:nil];
}

// 如果用户关闭了接收通知功能，该方法可以跳转到APP设置页面进行修改
- (void)goToAppSystemSetting {
    dispatch_async(dispatch_get_main_queue(), ^{
        UIApplication *application = [UIApplication sharedApplication];
        NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
        if ([application canOpenURL:url]) {
            if (@available(iOS 10.0, *)) {
                if ([application respondsToSelector:@selector(openURL:options:completionHandler:)]) {
                    [application openURL:url options:@{} completionHandler:nil];
                }
            }else {
                [application openURL:url];
            }
        }
    });
}