从iOS8.0开始推送功能的实现在不断改变，功能也在不断增加，iOS10又出来了一个推送插件的开发（见最后图），废话不多说直接上代码：

在开始之前需要打开一个推送开关,不然无法获取deviceToken,老项目或者出现deviceToken无效的情况：如图：

打开后会生成entitlements文件，需要有APS Environment

或许还应该打开这个

#import <UserNotifications/UserNotifications.h>

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {// Override point for customization after application launch./* APP未启动，点击推送消息的情况下 iOS10遗弃UIApplicationLaunchOptionsLocalNotificationKey，使用代理UNUserNotificationCenterDelegate方法didReceiveNotificationResponse:withCompletionHandler:获取本地推送*/// NSDictionary *localUserInfo = launchOptions[UIApplicationLaunchOptionsLocalNotificationKey];// if (localUserInfo) {// NSLog(@"localUserInfo:%@",localUserInfo);// //APP未启动，点击推送消息// }NSDictionary *remoteUserInfo = launchOptions[UIApplicationLaunchOptionsRemoteNotificationKey];if (remoteUserInfo) {NSLog(@"remoteUserInfo:%@",remoteUserInfo);//APP未启动，点击推送消息，iOS10下还是跟以前一样在此获取}[self registerNotification];return YES;}

注册推送方法的改变：

新增库#import <UserNotifications/UserNotifications.h> 推送单列UNUserNotificationCenter 等API

- (void)registerNotification{/*identifier：行为标识符，用于调用代理方法时识别是哪种行为。title：行为名称。UIUserNotificationActivationMode：即行为是否打开APP。authenticationRequired：是否需要解锁。destructive：这个决定按钮显示颜色，YES的话按钮会是红色。behavior：点击按钮文字输入，是否弹出键盘*/UNNotificationAction *action1 = [UNNotificationAction actionWithIdentifier:@"action1" title:@"策略1行为1" options:UNNotificationActionOptionForeground];/*iOS9实现方法UIMutableUserNotificationAction * action1 = [[UIMutableUserNotificationAction alloc] init];action1.identifier = @"action1";action1.title=@"策略1行为1";action1.activationMode = UIUserNotificationActivationModeForeground;action1.destructive = YES;*/UNTextInputNotificationAction *action2 = [UNTextInputNotificationAction actionWithIdentifier:@"action2" title:@"策略1行为2" options:UNNotificationActionOptionDestructive textInputButtonTitle:@"textInputButtonTitle" textInputPlaceholder:@"textInputPlaceholder"];/*iOS9实现方法UIMutableUserNotificationAction * action2 = [[UIMutableUserNotificationAction alloc] init];action2.identifier = @"action2";action2.title=@"策略1行为2";action2.activationMode = UIUserNotificationActivationModeBackground;action2.authenticationRequired = NO;action2.destructive = NO;action2.behavior = UIUserNotificationActionBehaviorTextInput;//点击按钮文字输入，是否弹出键盘*/UNNotificationCategory *category1 = [UNNotificationCategory categoryWithIdentifier:@"Category1" actions:@[action2,action1] intentIdentifiers:@[@"action1",@"action2"] options:UNNotificationCategoryOptionCustomDismissAction];// UIMutableUserNotificationCategory * category1 = [[UIMutableUserNotificationCategory alloc] init];// category1.identifier = @"Category1";// [category1 setActions:@[action2,action1] forContext:(UIUserNotificationActionContextDefault)];UNNotificationAction *action3 = [UNNotificationAction actionWithIdentifier:@"action3" title:@"策略2行为1" options:UNNotificationActionOptionForeground];// UIMutableUserNotificationAction * action3 = [[UIMutableUserNotificationAction alloc] init];// action3.identifier = @"action3";// action3.title=@"策略2行为1";// action3.activationMode = UIUserNotificationActivationModeForeground;// action3.destructive = YES;UNNotificationAction *action4 = [UNNotificationAction actionWithIdentifier:@"action4" title:@"策略2行为2" options:UNNotificationActionOptionForeground];// UIMutableUserNotificationAction * action4 = [[UIMutableUserNotificationAction alloc] init];// action4.identifier = @"action4";// action4.title=@"策略2行为2";// action4.activationMode = UIUserNotificationActivationModeBackground;// action4.authenticationRequired = NO;// action4.destructive = NO;UNNotificationCategory *category2 = [UNNotificationCategory categoryWithIdentifier:@"Category2" actions:@[action3,action4] intentIdentifiers:@[@"action3",@"action4"] options:UNNotificationCategoryOptionCustomDismissAction];// UIMutableUserNotificationCategory * category2 = [[UIMutableUserNotificationCategory alloc] init];// category2.identifier = @"Category2";// [category2 setActions:@[action4,action3] forContext:(UIUserNotificationActionContextDefault)];[[UNUserNotificationCenter currentNotificationCenter] setNotificationCategories:[NSSet setWithObjects:category1,category2, nil]];[[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert completionHandler:^(BOOL granted, NSError * _Nullable error) {NSLog(@"completionHandler");}];/*iOS9实现方法UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound) categories:[NSSet setWithObjects: category1,category2, nil]];[[UIApplication sharedApplication] registerUserNotificationSettings:settings];*/[[UIApplication sharedApplication] registerForRemoteNotifications];[UNUserNotificationCenter currentNotificationCenter].delegate = self;}

代理方法的改变：

#pragma mark -- (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings NS_AVAILABLE_IOS(8_0) __TVOS_PROHIBITED{NSLog(@"didRegisterUserNotificationSettings");}- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken NS_AVAILABLE_IOS(3_0){NSLog(@"deviceToken:%@",deviceToken);NSString *deviceTokenSt = [[[[deviceToken description]stringByReplacingOccurrencesOfString:@"<" withString:@""]stringByReplacingOccurrencesOfString:@">" withString:@""]stringByReplacingOccurrencesOfString:@" " withString:@""];NSLog(@"deviceTokenSt:%@",deviceTokenSt);}- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error NS_AVAILABLE_IOS(3_0){NSLog(@"didFailToRegisterForRemoteNotificationsWithError:%@",error);}/*iOS9使用方法- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo NS_DEPRECATED_IOS(3_0, 10_0, "Use UserNotifications Framework's -[UNUserNotificationCenterDelegate willPresentNotification:withCompletionHandler:] or -[UNUserNotificationCenterDelegate didReceiveNotificationResponse:withCompletionHandler:] for user visible notifications and -[UIApplicationDelegate application:didReceiveRemoteNotification:fetchCompletionHandler:] for silent remote notifications"){}*/- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions))completionHandler{NSLog(@"willPresentNotification:%@",notification.request.content.title);// 这里真实需要处理交互的地方// 获取通知所带的数据NSString *notMess = [notification.request.content.userInfo objectForKey:@"aps"];}- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void (^)())completionHandler{//在没有启动本App时，收到服务器推送消息，下拉消息会有快捷回复的按钮，点击按钮后调用的方法，根据identifier来判断点击的哪个按钮NSString *notMess = [response.notification.request.content.userInfo objectForKey:@"aps"];NSLog(@"didReceiveNotificationResponse:%@",response.notification.request.content.title);// response.notification.request.identifier}//远程推送APP在前台- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler{NSLog(@"didReceiveRemoteNotification:%@",userInfo);}/*- (void)application:(UIApplication *)application handleActionWithIdentifier:(nullable NSString *)identifier forRemoteNotification:(NSDictionary *)userInfo completionHandler:(void(^)())completionHandler NS_DEPRECATED_IOS(8_0, 10_0, "Use UserNotifications Framework's -[UNUserNotificationCenterDelegate didReceiveNotificationResponse:withCompletionHandler:]") __TVOS_PROHIBITED{}*//*// 本地通知回调函数，当应用程序在前台时调用- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification NS_DEPRECATED_IOS(4_0, 10_0, "Use UserNotifications Framework's -[UNUserNotificationCenterDelegate willPresentNotification:withCompletionHandler:] or -[UNUserNotificationCenterDelegate didReceiveNotificationResponse:withCompletionHandler:]") __TVOS_PROHIBITED{NSLog(@"didReceiveLocalNotification:%@",notification.userInfo);// 这里真实需要处理交互的地方// 获取通知所带的数据NSString *notMess = [notification.userInfo objectForKey:@"aps"];UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"本地通知(前台)"message:notMessdelegate:nilcancelButtonTitle:@"OK"otherButtonTitles:nil];[alert show];// 更新显示的徽章个数NSInteger badge = [UIApplication sharedApplication].applicationIconBadgeNumber;badge--;badge = badge >= 0 ? badge : 0;[UIApplication sharedApplication].applicationIconBadgeNumber = badge;// 在不需要再推送时，可以取消推送[FirstViewController cancelLocalNotificationWithKey:@"key"];}- (void)application:(UIApplication *)application handleActionWithIdentifier:(nullable NSString *)identifier forLocalNotification:(UILocalNotification *)notification completionHandler:(void(^)())completionHandler NS_DEPRECATED_IOS(8_0, 10_0, "Use UserNotifications Framework's -[UNUserNotificationCenterDelegate didReceiveNotificationResponse:withCompletionHandler:]") __TVOS_PROHIBITED{//在非本App界面时收到本地消息，下拉消息会有快捷回复的按钮，点击按钮后调用的方法，根据identifier来判断点击的哪个按钮，notification为消息内容NSLog(@"%@----%@",identifier,notification);completionHandler();//处理完消息，最后一定要调用这个代码块}*/

还有推送插件开发: 类似iOS tody widget插件开发

这里我们要注意一定要有"mutable-content": "1",以及一定要有Alert的字段，否则可能会拦截通知失败。（苹果文档说的）。除此之外，我们还可以添加自定义字段，比如，图片地址，图片类型{"aps": {"alert": "message.","badge": 1,"sound": "default","mutable-content": "1","imageAbsoluteString": "http://xxxx"}}