//
//  AppDelegate.m
//  MyPushDemo
//
//  Created by justapple on 16/12/25.
//  Copyright ? 2016年 dengqi. All rights reserved.
//

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

#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)


@interface AppDelegate ()<UNUserNotificationCenterDelegate>

@end

@implementation AppDelegate


- (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];
}


#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);
}


#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
}


- (void)applicationWillResignActive:(UIApplication *)application {
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application {
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application {
    // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}

- (void)applicationWillTerminate:(UIApplication *)application {
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

@end



参考文章http://www.jianshu.com/p/c58f8322a278



后台测试代码：新建一个窗体程序，程序代码如下

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net.Security;
using System.Net.Sockets;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplicationIosPush
{
    class Program
    {
static void Main(string[] args)
        {
            while (true)
            {
                pushMessage("这是推送的内容");
            }
        }
        public static void pushMessage(string content)
        {
            string deviceID = "sdfjaijdflsdjfladjfaalsd1254jflajfasdj0falsdf87jald55f";//获取的DeviceToken(乱写的)
            int port = 2195;
            var hostname = "gateway.sandbox.push.apple.com";
  
            var certificatePath = @"C:\just\MyPushDemo证书.p12";//.p12的证书文件
         
            X509Certificate2 clientCertificate = new X509Certificate2(System.IO.File.ReadAllBytes(certificatePath), "123456");//证书的密码
  
            X509Certificate2Collection certificatesCollection = new X509Certificate2Collection(clientCertificate);
  
            TcpClient client = new TcpClient(hostname, port);
            SslStream sslStream = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null);
  
            try
            {
                sslStream.AuthenticateAsClient(hostname, certificatesCollection, SslProtocols.Tls, false);
                MemoryStream memoryStream = new MemoryStream();
                BinaryWriter writer = new BinaryWriter(memoryStream);
                writer.Write((byte)0);
                writer.Write((byte)0);
                writer.Write((byte)32);
  
                writer.Write(HexStringToByteArray(deviceID.ToUpper()));
   
                String payload = "{\"aps\":{\"alert\":\"" + content + "\",\"badge\":10,\"sound\":\"default\"}}";
                var payloadlength = System.Text.Encoding.UTF8.GetBytes(payload).Length;
                writer.Write((byte)0);
                //writer.Write((byte)payload.Length);
                writer.Write((byte)payloadlength);
                byte[] b1 = System.Text.Encoding.UTF8.GetBytes(payload);
                writer.Write(b1);
                writer.Flush();
                byte[] array = memoryStream.ToArray();
                sslStream.Write(array);
                sslStream.Flush();
                client.Close();
            }
            catch (System.Security.Authentication.AuthenticationException ex)
            {
                client.Close();
            }
            catch (Exception e)
            {
                client.Close();
            }
        }
  
        private static bool ValidateServerCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors)
        {     
            Console.WriteLine(certificate.Subject);         
            return true;
        }
  
        public static byte[] HexStringToByteArray(string hex) 
        {
            return Enumerable.Range(0, hex.Length)
                              .Where(x => x % 2 == 0)
                              .Select(x => Convert.ToByte(hex.Substring(x, 2), 16))
                              .ToArray();
        }
  
    }
}