User Notifications Framework in iOS 10

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效果图

UserNotificationsUI，iOS 10增加新的framework可以让我们定义新的通知样式。

使用步骤：

1、创建一个Request(UNNotificationRequest)，主要是为了请求通知中心发送通知。

2、Request 包含一个触发器和内容。

触发器trigger（UNNotificationTrigger）需要一个时间(NSDateComponents)去定时发通知；

内容UNMutableNotificationContent包含通知的标题、文本内容、附件（附件是一个数组，经测试只能显示一张图片，且无论设置几张图片，也只是一张图片)

3、最后通过通知中心去分发通知。

NSCalendar *calendar = [NSCalendar currentCalendar];    NSDateComponents *components = [calendar componentsInTimeZone:[NSTimeZone localTimeZone] fromDate:date];        NSDateComponents *newComponents = [[NSDateComponents alloc] init];    newComponents.calendar = calendar;    newComponents.timeZone = [NSTimeZone localTimeZone];    newComponents.month = components.month;    newComponents.day = components.day;    newComponents.hour = components.hour;    newComponents.minute = components.minute;        UNNotificationTrigger *trigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:newComponents repeats:NO];        UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];    content.title = @"Where am I";    content.body = @"Just a moment to miss you";    content.sound = [UNNotificationSound defaultSound];    content.categoryIdentifier = @"MyCategory";        NSString *path = [[NSBundle mainBundle] pathForResource:@"settingImage4@2x" ofType:@"png"];    NSString *path2 = [[NSBundle mainBundle] pathForResource:@"settingImage3@2x" ofType:@"png"];    if (path) {        UNNotificationAttachment *attachment = [UNNotificationAttachment attachmentWithIdentifier:@"logo" URL:[NSURL fileURLWithPath:path] options:nil error:nil];                UNNotificationAttachment *attachment2 = [UNNotificationAttachment attachmentWithIdentifier:@"logo2" URL:[NSURL fileURLWithPath:path2] options:nil error:nil];        if (attachment) {            content.attachments = @[attachment, attachment2];        }    }        UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"textNotification" content:content trigger:trigger];    [[UNUserNotificationCenter currentNotificationCenter] removeAllPendingNotificationRequests];    [[UNUserNotificationCenter currentNotificationCenter] setDelegate:self];        [[UNUserNotificationCenter currentNotificationCenter] addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {        if (error) {            NSLog(@"Uh oh! We had an error: %@", error);        }    }];

如果需要代理，比如实现收到通知后的点击等事件。

#pragma mark UNUserNotificationCenterDelegate- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler {    if ([response.actionIdentifier isEqualToString:@"remindLater"]) {        NSDate *date = [NSDate dateWithTimeInterval:800 sinceDate:[NSDate date]];    }}

其次，如果需要给通知增加一个按钮，可以初始化如下代码

[[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:UNAuthorizationOptionAlert | UNAuthorizationOptionSound completionHandler:^(BOOL granted, NSError * _Nullable error) {        if (!granted) {            NSLog(@"Notification access denied.");        }    }];        UNNotificationAction *action = [UNNotificationAction actionWithIdentifier:@"remindLater" title:@"remind me later" options:UNNotificationActionOptionDestructive];    UNNotificationCategory *category = [UNNotificationCategory categoryWithIdentifier:@"MyCategory" actions:@[action] intentIdentifiers:@[] options:UNNotificationCategoryOptionAllowInCarPlay];        [[UNUserNotificationCenter currentNotificationCenter] setNotificationCategories:[NSSet setWithObjects:category, nil]];

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