远程推送

//
//  AppDelegate.m
//

#import "AppDelegate.h"
#import <UserNotifications/UserNotifications.h>

@interface AppDelegate ()

@end

@implementation AppDelegate
// 远程推送APNS优点：长连接、离线状态也可以、安装identifier分组通知

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    //注册远程推送服务
    //1.enable the Push Notifications capability in your Xcode project
    
    CGFloat version = [[[UIDevice currentDevice] systemVersion] floatValue];
    
    //设置通知类型
    if (version >= 10.0)
    {
        UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
        [center requestAuthorizationWithOptions:UNAuthorizationOptionCarPlay | UNAuthorizationOptionSound | UNAuthorizationOptionBadge | UNAuthorizationOptionAlert completionHandler:^(BOOL granted, NSError * _Nullable error) {
              
            if (granted) {
                NSLog(@" iOS 10 request notification success");
            }else{
                NSLog(@" iOS 10 request notification fail");
            }
        }];
    }
    else if (version >= 8.0)
    {
        UIUserNotificationSettings *setting = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeSound | UIUserNotificationTypeBadge | UIUserNotificationTypeAlert categories:nil];
        [application registerUserNotificationSettings:setting];
    }else
    {     //iOS <= 7.0
        UIRemoteNotificationType type = UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound;
        [application registerForRemoteNotificationTypes:type];
    }

    //2.注册app
    [[UIApplication sharedApplication] registerForRemoteNotifications];
    
    return YES;
}

//2.上传device token到我们的服务器
-(void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken
{
    // token 不要本地缓存，当你重新启动、用户换个手机、升级系统都会返回新的token
    // 安全的加密上传到我们的服务器
    
}

//2.注册失败
-(void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error
{
    //失败之后，找个合适机会再试一次
    
    
}

/**
 
 3.上传payload和device token到APNS
 
 （1、服务器有两种方式建立和apns的安全连接（token和证书）
 （2、服务器发送POST请求：必须包含以下信息
 （3、证书建立连接的话：证书和CSR文件绑定，CSR文件作为私钥加密证书，证书当做公钥用来和APNS交互。我们服务器安装这两种证书,证书有效期1年。
 
 
    The JSON payload that you want to send

    The device token for the user’s device

    Request-header fields specifying how to deliver the notification

    For token-based authentication, your provider server’s current authentication token（大多是证书）
 
    HEADERS
      - END_STREAM
      + END_HEADERS
      :method = POST
      :scheme = https
      :path = /3/device/00fc13adff785122b4ad28809a3420982341241421348097878e577c991de8f0
      host = api.sandbox.push.apple.com
      apns-id = eabeae54-14a8-11e5-b60b-1697f925ec7b
      apns-push-type = alert
      apns-expiration = 0
      apns-priority = 10
    DATA
      + END_STREAM
      { "aps" : { "alert" : "Hello" } }
 
 
 
 */

/**
 4.创造一个新的远程通知
    大小限制在4~5KB之间
    json payload:aps字段告诉怎么显示，是弹框、声音或者badge
    可以自定义key，和aps字典同级
    {
       “aps” : {
          “alert” : {
             “title” : “Game Request”,
             “subtitle” : “Five Card Draw”
             “body” : “Bob wants to play poker”,
          },
          “category” : “GAME_INVITATION”
       },
       “gameID” : “12345678”
    }
 
 
 */



@end