3、 推送的注册
第一步: 导入 #import且要遵守的协议，在Appdelegate.m中。这里需要注意，我们最好写成这种形式（防止低版本找不到头文件出现问题）#ifdef NSFoundationVersionNumber_iOS_9_x_Max#import#endif
第二步：我们需要在
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions中注册通知，代码如下
- (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];
}
上面需要注意：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：========4、 远端推送需要获取设备的Device Token的方法是没有变的,代码如下
#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]:%@\n",error.description);
}
5、这一步吊了，这是iOS 10系统更新时，苹果给了我们2个代理方法来处理通知的接收和点击事件，这两个方法在的协议中，大家可以查看下。@protocol UNUserNotificationCenterDelegate@optional
// The method will be called on the delegate only if the application is in the foreground. If the method is not implemented or the handler is not called in a timely manner then the notification will not be presented. The application can choose to have the notification presented as a sound, badge, alert and/or in the notification list. This decision should be based on whether the information in the notification is otherwise visible to the user.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler __IOS_AVAILABLE(10.0) __TVOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0);
// The method will be called on the delegate when the user responded to the notification by opening the application, dismissing the notification or choosing a UNNotificationAction. The delegate must be set before the application returns from applicationDidFinishLaunching:.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)())completionHandler __IOS_AVAILABLE(10.0) __WATCHOS_AVAILABLE(3.0) __TVOS_PROHIBITED;
@end
此外，苹果把本地通知跟远程通知合二为一。区分本地通知跟远程通知的类是UNPushNotificationTrigger.h类中，UNPushNotificationTrigger的类型是新增加的，通过它，我们可以得到一些通知的触发条件 ，解释如下：
UNPushNotificationTrigger （远程通知） 远程推送的通知类型
UNTimeIntervalNotificationTrigger （本地通知） 一定时间之后，重复或者不重复推送通知。我们可以设置timeInterval（时间间隔）和repeats（是否重复）。
UNCalendarNotificationTrigger（本地通知） 一定日期之后，重复或者不重复推送通知 例如，你每天8点推送一个通知，只要dateComponents为8，如果你想每天8点都推送这个通知，只要repeats为YES就可以了。
UNLocationNotificationTrigger （本地通知）地理位置的一种通知，
当用户进入或离开一个地理区域来通知。
现在先提出来，后面我会一一代码演示出每种用法。还是回到两个很吊的代理方法吧
#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
}
需要注意的：
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);
6、 iOS 10之前接收通知的兼容方法
#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。。。。。。
}
