关于使用 UNUserNotificationCenter 的本地通知

UNUserNotificationCenter是iOS10 推出的新的通知中心 ,最近的项目涉及的比较深,我就总结了一下:

下面我们开始一步一步的来添加本地推送,

1、首先在开始注册通知:

    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 +UNAuthorizationOptionBadge)
                          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) {
            }];

我们要首先注册通知中心的代理事件,注册通知,提醒用户获取通知权限:

 - (void)requestAuthorizationWithOptions:(UNAuthorizationOptions)options completionHandler:(void (^)(BOOL granted, NSError *__nullable error))completionHandler;

(1)其中 UNAuthorizationOptions 是授权通知提醒的方式

           UNAuthorizationOptionBa dge;  
           UNAuthorizationOptionSound;  
           UNAuthorizationOptionAlert;  
           UNAuthorizationOptionCarPlay;   

这个根据需要填写。

(2)block中的 BOOL granted 与 NSError *__nullable error  :  
          error 注册失败时错误抛出;
          granted 为YES时得到用户授权,为NO�时授权失败 (用户不允许);

2、创建一个新的通知内容 UNMutableNotificationContent ,我们先了解一下这个类:

// 为通知中附加音频,图片,视频  
@property (NS_NONATOMIC_IOSONLY, copy) NSArray <UNNotificationAttachment *> *attachments 

//控制应用的badge的数量
@property (NS_NONATOMIC_IOSONLY, copy, nullable) NSNumber *badge;

//通知的消息体
@property (NS_NONATOMIC_IOSONLY, copy) NSString *body ;

//在通知代理 中用来识别具体是哪一个通知
@property (NS_NONATOMIC_IOSONLY, copy) NSString 
*categoryIdentifier ;

//通知中有图片时,设置本属性,可以获取下拉图片的大图展示
@property (NS_NONATOMIC_IOSONLY, copy) NSString *launchImageName;

//通知的提示音,可以默认系统的defaultSound ; 也可以加载本地的音频文件(传入音频文件名),这里iOS10中有个BUG, 加载本地音频文件时有时会放不出来
@property (NS_NONATOMIC_IOSONLY, copy, nullable) UNNotificationSound *sound ;

// 通知的副标题
@property (NS_NONATOMIC_IOSONLY, copy) NSString *subtitle ;

//线程标识
@property (NS_NONATOMIC_IOSONLY, copy) NSString *threadIdentifier;

//通知的标题
@property (NS_NONATOMIC_IOSONLY, copy) NSString *title;

//当一个通知发出时携带的信息;(远程时用到)
@property (NS_NONATOMIC_IOSONLY, copy) NSDictionary *userInfo;

下面看一下笔者写的一个方法:

/**
  IOS 10的通知   推送消息 支持的音频 <= 5M(现有的系统偶尔会出现播放不出来的BUG)  图片 <= 10M  视频 <= 50M  ,这些后面都要带上格式;

 @param body 消息内容
 @param promptTone 提示音
 @param soundName 音频
 @param imageName 图片
 @param movieName 视频
 @param identifier 消息标识
 */
-(void)pushNotification_IOS_10_Body:(NSString *)body
                         promptTone:(NSString *)promptTone
                          soundName:(NSString *)soundName
                          imageName:(NSString *)imageName
                          movieName:(NSString *)movieName
                         Identifier:(NSString *)identifier {
     //获取通知中心用来激活新建的通知
    UNUserNotificationCenter * center  = [UNUserNotificationCenter currentNotificationCenter];
    
    UNMutableNotificationContent * content = [[UNMutableNotificationContent alloc]init];
    
    content.body = body;
    //通知的提示音
    if ([promptTone containsString:@"."]) {
        
        UNNotificationSound *sound = [UNNotificationSound soundNamed:promptTone];
        content.sound = sound;
        
    }
    
    __block UNNotificationAttachment *imageAtt;
    __block UNNotificationAttachment *movieAtt;
    __block UNNotificationAttachment *soundAtt;

    if ([imageName containsString:@"."]) {
        
        [self addNotificationAttachmentContent:content attachmentName:imageName options:nil withCompletion:^(NSError *error, UNNotificationAttachment *notificationAtt) {
           
            imageAtt = [notificationAtt copy];
        }];
    }
    
    if ([soundName containsString:@"."]) {
        
        
        [self addNotificationAttachmentContent:content attachmentName:soundName options:nil withCompletion:^(NSError *error, UNNotificationAttachment *notificationAtt) {
            
            soundAtt = [notificationAtt copy];
            
        }];
        
    }
    
    if ([movieName containsString:@"."]) {
        // 在这里截取视频的第10s为视频的缩略图 :UNNotificationAttachmentOptionsThumbnailTimeKey
        [self addNotificationAttachmentContent:content attachmentName:movieName options:@{@"UNNotificationAttachmentOptionsThumbnailTimeKey":@10} withCompletion:^(NSError *error, UNNotificationAttachment *notificationAtt) {
            
            movieAtt = [notificationAtt copy];
            
        }];
        
    }

    NSMutableArray * array = [NSMutableArray array];
//    [array addObject:soundAtt];
//    [array addObject:imageAtt];
    [array addObject:movieAtt];
    
    content.attachments = array;

    //添加通知下拉动作按钮
    NSMutableArray * actionMutableArray = [NSMutableArray array];
    UNNotificationAction * actionA = [UNNotificationAction actionWithIdentifier:@"identifierNeedUnlock" title:@"进入应用" options:UNNotificationActionOptionAuthenticationRequired];
    UNNotificationAction * actionB = [UNNotificationAction actionWithIdentifier:@"identifierRed" title:@"忽略" options:UNNotificationActionOptionDestructive];
    [actionMutableArray addObjectsFromArray:@[actionA,actionB]];
    
    if (actionMutableArray.count > 1) {
        
        UNNotificationCategory * category = [UNNotificationCategory categoryWithIdentifier:@"categoryNoOperationAction" actions:actionMutableArray intentIdentifiers:@[] options:UNNotificationCategoryOptionCustomDismissAction];
        [center setNotificationCategories:[NSSet setWithObjects:category, nil]];
        content.categoryIdentifier = @"categoryNoOperationAction";
    }
    
    //UNTimeIntervalNotificationTrigger   延时推送
    //UNCalendarNotificationTrigger       定时推送
    //UNLocationNotificationTrigger       位置变化推送

    UNTimeIntervalNotificationTrigger * tirgger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:10 repeats:NO];
    
   //建立通知请求
    UNNotificationRequest * request = [UNNotificationRequest requestWithIdentifier:identifier content:content trigger:tirgger];
    
    //将建立的通知请求添加到通知中心
    [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
        
        NSLog(@"%@本地推送 :( 报错 %@",identifier,error);
        
    }];
}


/**
 增加通知附件

 @param content 通知内容
 @param attachmentName 附件名称
 @param options 相关选项
 @param completion 结果回调
 */
-(void)addNotificationAttachmentContent:(UNMutableNotificationContent *)content attachmentName:(NSString *)attachmentName  options:(NSDictionary *)options withCompletion:(void(^)(NSError * error , UNNotificationAttachment * notificationAtt))completion{
    
    
    NSArray * arr = [attachmentName componentsSeparatedByString:@"."];
    
    NSError * error;
    
    NSString * path = [[NSBundle mainBundle]pathForResource:arr[0] ofType:arr[1]];
    
    UNNotificationAttachment * attachment = [UNNotificationAttachment attachmentWithIdentifier:[NSString stringWithFormat:@"notificationAtt_%@",arr[1]] URL:[NSURL fileURLWithPath:path] options:options error:&error];
    
    if (error) {
        
        NSLog(@"attachment error %@", error);
        
    }
    
    completion(error,attachment);
    //获取通知下拉放大图片
    content.launchImageName = attachmentName;

}

其中通知中的 图片、语音、视频,经过自己测试只能同时添加,只能显示其中一种,这个我还没有搞清楚 。

在创建附件的方法:attachmentWithIdentifier:URL:options:error:中,
(1)URL必须是一个有效地文件路径,
(2)option 是共有4个选项,
UNNotificationAttachmentOptionsTypeHintKey : 如果添加附件的文件名字中没有类型,就要靠该键值来确定文件类型;
UNNotificationAttachmentOptionsThumbnailHiddenKey : 是一个BOOL值,为YES时候,缩略图将隐藏,默认为YES;
UNNotificationAttachmentOptionsThumbnailClippingRectKey : 是一个矩形CGRect 剪贴图片的缩略图的键值;
UNNotificationAttachmentOptionsThumbnailTimeKey : 如果附件是一个视频的话,可以用这值来指定视频中的某一秒为视频的缩略图;

关于通知的我们可以设置它延时提醒,定时提醒(闹钟),位置发生变化提醒:

    UNTimeIntervalNotificationTrigger   延时推送
    UNCalendarNotificationTrigger         定时推送
    UNLocationNotificationTrigger         位置变化推送

(1)关于UNTimeIntervalNotificationTrigger 通知延时设置,注意 :如果 repeats 设置为YES 则延时时间必须大于 60s 否则会 crash;
(2)UNCalendarNotificationTrigger 使用定时推送 ,通过类NSDateComponents 来设置具体的提醒日期;
(3)UNLocationNotificationTrigger 使用位置变化触发推送,通过类CLRegion 来设置经纬度;

3、通知中的代理事件

//当应用在前台时,收到通知会触发这个代理方法;你可以在这个方法中对应用处于前台时接到通知做一些自己的处理
-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler{
    
    completionHandler(UNNotificationPresentationOptionSound + UNNotificationPresentationOptionAlert);
}
//当点击进入应用时触发;
-(void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler{
    
    
    completionHandler(UNNotificationPresentationOptionSound + UNNotificationPresentationOptionAlert);
}

这里complitionHandler中参数是UNNotificationPresentationOptions 通知提醒的方式 :

    UNNotificationPresentationOptionBadge ,
    UNNotificationPresentationOptionSound  , 
    UNNotificationPresentationOptionAlert ,

欢迎大家 看过后,对文章做出评价,与指导!关于推送的更多内容我会不断的完善更新。



作者:blueskyinwind
链接:https://www.jianshu.com/p/3260f864e5aa
来源:简书
著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。

猜你喜欢

转载自blog.csdn.net/ljc_563812704/article/details/103256934