iOS 10 消息推送（UserNotifications）秘籍总结

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#ifdef NSFoundationVersionNumber_iOS_9_x_Max
#import <UserNotifications/UserNotifications.h>
#endif

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 [self replyPushNotificationAuthorization:application];
 return YES;
}
#pragma mark - 申请通知权限
// 申请通知权限
- (void)replyPushNotificationAuthorization:(UIApplication *)application{
 
 if (IOS10_OR_LATER) {
 //iOS 10 later
 UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
 //必须写代理，不然无法监听通知的接收与点击事件
 center.delegate = self;
 [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {
 if (!error && granted) {
 //用户点击允许
 NSLog(@"注册成功");
 }else{
 //用户点击不允许
 NSLog(@"注册失败");
 }
 }];
 
 // 可以通过 getNotificationSettingsWithCompletionHandler 获取权限设置
 //之前注册推送服务，用户点击了同意还是不同意，以及用户之后又做了怎样的更改我们都无从得知，现在 apple 开放了这个 API，我们可以直接获取到用户的设定信息了。注意UNNotificationSettings是只读对象哦，不能直接修改！
 [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
 NSLog(@"========%@",settings);
 }];
 }else if (IOS8_OR_LATER){
 //iOS 8 - iOS 10系统
 UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil];
 [application registerUserNotificationSettings:settings];
 }else{
 //iOS 8.0系统以下
 [application registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound];
 }
 
 //注册远端消息通知获取device token
 [application registerForRemoteNotifications];
}

1. 必须写代理，不然无法监听通知的接收与点击事件
 center.delegate = self;
下面是我在项目里定义的宏
#define IOS10_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 10.0)
#define IOS9_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9.0)
#define IOS8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
#define IOS7_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
2. 之前注册推送服务，用户点击了同意还是不同意，以及用户之后又做了怎样的更改我们都无从得知，现在 apple 开放了这个 API，我们可以直接获取到用户的设定信息了。注意UNNotificationSettings是只读对象哦，不能直接修改！只能通过以下方式获取
 [center getNotificationSettingsWithCompletionHandler:^(UNNotificationSettings * _Nonnull settings) {
 NSLog(@"========%@",settings);
 }];
打印信息如下：
========<UNNotificationSettings: 0x1740887f0; authorizationStatus: Authorized, notificationCenterSetting: Enabled, soundSetting: Enabled, badgeSetting: Enabled, lockScreenSetting: Enabled, alertSetting: NotSupported, carPlaySetting: Enabled, alertStyle: Banner>

#pragma mark - 获取device Token
//获取DeviceToken成功
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken{
 
 //解析NSData获取字符串
 //我看网上这部分直接使用下面方法转换为string，你会得到一个nil（别怪我不告诉你哦）
 //错误写法
 //NSString *string = [[NSString alloc] initWithData:deviceToken encoding:NSUTF8StringEncoding];
 
 
 //正确写法
 NSString *deviceString = [[deviceToken description] stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"<>"]];
 deviceString = [deviceString stringByReplacingOccurrencesOfString:@" " withString:@""];
 
 NSLog(@"deviceToken===========%@",deviceString);
}
//获取DeviceToken失败
- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error{
 NSLog(@"[DeviceToken Error]:%@
",error.description);
}

#pragma mark - iOS10 收到通知（本地和远端） UNUserNotificationCenterDelegate
//App处于前台接收通知时
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler{
 
 //收到推送的请求
 UNNotificationRequest *request = notification.request;
 
 //收到推送的内容
 UNNotificationContent *content = request.content;
 
 //收到用户的基本信息
 NSDictionary *userInfo = content.userInfo;
 
 //收到推送消息的角标
 NSNumber *badge = content.badge;
 
 //收到推送消息body
 NSString *body = content.body;
 
 //推送消息的声音
 UNNotificationSound *sound = content.sound;
 
 // 推送消息的副标题
 NSString *subtitle = content.subtitle;
 
 // 推送消息的标题
 NSString *title = content.title;
 
 if([notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
 //此处省略一万行需求代码。。。。。。
 NSLog(@"iOS10 收到远程通知:%@",userInfo);
 
 }else {
 // 判断为本地通知
 //此处省略一万行需求代码。。。。。。
 NSLog(@"iOS10 收到本地通知:{\\nbody:%@，\\ntitle:%@,\\nsubtitle:%@,\\nbadge：%@，\\nsound：%@，\\nuserInfo：%@\\n}",body,title,subtitle,badge,sound,userInfo);
 }
 
 // 需要执行这个方法，选择是否提醒用户，有Badge、Sound、Alert三种类型可以设置
 completionHandler(UNNotificationPresentationOptionBadge|
 UNNotificationPresentationOptionSound|
 UNNotificationPresentationOptionAlert);
 
}
 
//App通知的点击事件
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler{
 //收到推送的请求
 UNNotificationRequest *request = response.notification.request;
 
 //收到推送的内容
 UNNotificationContent *content = request.content;
 
 //收到用户的基本信息
 NSDictionary *userInfo = content.userInfo;
 
 //收到推送消息的角标
 NSNumber *badge = content.badge;
 
 //收到推送消息body
 NSString *body = content.body;
 
 //推送消息的声音
 UNNotificationSound *sound = content.sound;
 
 // 推送消息的副标题
 NSString *subtitle = content.subtitle;
 
 // 推送消息的标题
 NSString *title = content.title;
 
 if([response.notification.request.trigger isKindOfClass:[UNPushNotificationTrigger class]]) {
 NSLog(@"iOS10 收到远程通知:%@",userInfo);
 //此处省略一万行需求代码。。。。。。
 
 }else {
 // 判断为本地通知
 //此处省略一万行需求代码。。。。。。
 NSLog(@"iOS10 收到本地通知:{\\nbody:%@，\\ntitle:%@,\\nsubtitle:%@,\\nbadge：%@，\\nsound：%@，\\nuserInfo：%@\\n}",body,title,subtitle,badge,sound,userInfo);
 }
 //2016-09-27 14:42:16.353978 UserNotificationsDemo[1765:800117] Warning: UNUserNotificationCenter delegate received call to -userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler: but the completion handler was never called.
 completionHandler(); // 系统要求执行这个方法
}

1.下面这个代理方法，只会是app处于前台状态 前台状态 and 前台状态下才会走，后台模式下是不会走这里的
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler
2.下面这个代理方法，只会是用户点击消息才会触发，如果使用户长按（3DTouch）、弹出Action页面等并不会触发。点击Action的时候会触发！
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler
3.点击代理最后需要执行：completionHandler(); // 系统要求执行这个方法
不然会报：
2016-09-27 14:42:16.353978 UserNotificationsDemo[1765:800117] Warning: UNUserNotificationCenter delegate received call to -userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler: but the completion handler was never called.
4.不管前台后台状态下。推送消息的横幅都可以展示出来！后台状态不用说，前台时需要在前台代理方法中设置 ，设置如下：
// 需要执行这个方法，选择是否提醒用户，有Badge、Sound、Alert三种类型可以设置
completionHandler(UNNotificationPresentationOptionBadge|
 UNNotificationPresentationOptionSound|
 UNNotificationPresentationOptionAlert);

#pragma mark -iOS 10之前收到通知
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
 NSLog(@"iOS6及以下系统，收到通知:%@", userInfo);
 //此处省略一万行需求代码。。。。。。
}
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
 NSLog(@"iOS7及以上系统，收到通知:%@", userInfo);
 completionHandler(UIBackgroundFetchResultNewData);
 //此处省略一万行需求代码。。。。。。
}

1. 创建一个触发器（trigger）
2. 创建推送的内容（UNMutableNotificationContent）
3. 创建推送请求（UNNotificationRequest）
4. 推送请求添加到推送管理中心（UNUserNotificationCenter）中

//timeInterval：单位为秒（s） repeats：是否循环提醒
//50s后提醒
UNTimeIntervalNotificationTrigger *trigger1 = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:50 repeats:NO];

//在每周一的14点3分提醒
NSDateComponents *components = [[NSDateComponents alloc] init]; 
components.weekday = 2;
components.hour = 16;
components.minute = 3;
 // components 日期
UNCalendarNotificationTrigger *calendarTrigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:components repeats:YES];

 //首先得导入#import <CoreLocation/CoreLocation.h>，不然会regin创建有问题。
 // 创建位置信息
 CLLocationCoordinate2D center1 = CLLocationCoordinate2DMake(39.788857, 116.5559392);
 CLCircularRegion *region = [[CLCircularRegion alloc] initWithCenter:center1 radius:500 identifier:@"经海五路"];
 region.notifyOnEntry = YES;
 region.notifyOnExit = YES;
 // region 位置信息 repeats 是否重复 （CLRegion 可以是地理位置信息）
 UNLocationNotificationTrigger *locationTrigger = [UNLocationNotificationTrigger triggerWithRegion:region repeats:YES];

//定时推送
+ (void)createLocalizedUserNotification{
 
 // 设置触发条件 UNNotificationTrigger
 UNTimeIntervalNotificationTrigger *timeTrigger = [UNTimeIntervalNotificationTrigger triggerWithTimeInterval:5.0f repeats:NO];
 
 // 创建通知内容 UNMutableNotificationContent, 注意不是 UNNotificationContent ,此对象为不可变对象。
 UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
 content.title = @"Dely 时间提醒 - title";
 content.subtitle = [NSString stringWithFormat:@"Dely 装逼大会竞选时间提醒 - subtitle"];
 content.body = @"Dely 装逼大会总决赛时间到，欢迎你参加总决赛！希望你一统X界 - body";
 content.badge = @666;
 content.sound = [UNNotificationSound defaultSound];
 content.userInfo = @{@"key1":@"value1",@"key2":@"value2"};
 
 // 创建通知标示
 NSString *requestIdentifier = @"Dely.X.time";
 
 // 创建通知请求 UNNotificationRequest 将触发条件和通知内容添加到请求中
 UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:requestIdentifier content:content trigger:timeTrigger];
 
 UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter];
 // 将通知请求 add 到 UNUserNotificationCenter
 [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
 if (!error) {
 NSLog(@"推送已添加成功 %@", requestIdentifier);
 //你自己的需求例如下面：
 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];
 //此处省略一万行需求。。。。
 }
 }];
}

{
 "aps" : {
 "alert" : {
 "title" : "iOS远程消息，我是主标题！-title",
 "subtitle" : "iOS远程消息，我是主标题！-Subtitle",
 "body" : "Dely,why am i so handsome -body"
 },
 "badge" : "2"
 }
}

// Notification requests that are waiting for their trigger to fire
//获取未送达的所有消息列表
- (void)getPendingNotificationRequestsWithCompletionHandler:(void(^)(NSArray<UNNotificationRequest *> *requests))completionHandler;
//删除所有未送达的特定id的消息
- (void)removePendingNotificationRequestsWithIdentifiers:(NSArray<NSString *> *)identifiers;
//删除所有未送达的消息
- (void)removeAllPendingNotificationRequests;
// Notifications that have been delivered and remain in Notification Center. Notifiations triggered by location cannot be retrieved, but can be removed.
//获取已送达的所有消息列表
- (void)getDeliveredNotificationsWithCompletionHandler:(void(^)(NSArray<UNNotification *> *notifications))completionHandler __TVOS_PROHIBITED;
//删除所有已送达的特定id的消息
- (void)removeDeliveredNotificationsWithIdentifiers:(NSArray<NSString *> *)identifiers __TVOS_PROHIBITED;
//删除所有已送达的消息
- (void)removeAllDeliveredNotifications __TVOS_PROHIBITED;

+ (void)notificationAction{
 NSString *requestIdentifier = @"Dely.X.time";
 UNUserNotificationCenter* center = [UNUserNotificationCenter currentNotificationCenter];
 
 //删除设备已收到的所有消息推送
 // [center removeAllDeliveredNotifications];
 
 //删除设备已收到特定id的所有消息推送
 // [center removeDeliveredNotificationsWithIdentifiers:@[requestIdentifier]];
 
 //获取设备已收到的消息推送
 [center getDeliveredNotificationsWithCompletionHandler:^(NSArray<UNNotification *> * _Nonnull notifications) {
 }];
}