APNs

#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
    
    //请求通知权限
    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert |UIUserNotificationTypeSound | UIUserNotificationTypeBadge categories:nil];
    [application registerUserNotificationSettings:settings];
    
    //注册远程通知
    [application registerForRemoteNotifications];
    return YES;
    
}
//deviceToken, 设备令牌, 唯一.

//远程推送注册成功
- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    NSLog(@"%@", deviceToken);
    //post 请求发给自己的服务器
    
    //生成推送证书：
    //1. 登陆开发者中心：https://developer.apple.com
    //2. 点开 certificates、identifiers 和 proversionprofiles 里面
    //3. 创建 APPID， 勾选 push notification servers 服务
    //4. 搜索刚才创建的 APPID，点击 edit，配置证书， 下载双击。
    //5. 证书创建完成， 钥匙链内右键导出 p12
}