iOS实现推送浅谈

网上好多关于申请推送证书的资料，在这里就不说申请证书的具体过程了，说一说具体工程项目中应怎么使用推送，和接收推送消息

首先在AppDelegate的didFinishLaunchingWithOptions方法中中添加如下代码：

double version = [[UIDevice currentDevice].systemVersion doubleValue];//判定系统版本。
if(version>=8.0f){
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeSound|UIRemoteNotificationTypeAlert) categories:nil];
        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];

    }else{
        UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:myTypes];
    }

然后实现接收推送消息的方法

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo{ // 处理推送消息
    NSLog(@"userinfo:%@",userInfo);
    NSLog(@"收到推送消息:%@",[[userInfo objectForKey:@"aps"] objectForKey:@"alert"]);
}
- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *) error {
    NSLog(@"Registfail%@",error);
}
-(void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken{
    NSLog(@"%@",deviceToken);//这里的Token就是我们设备要告诉服务端的Token码
}

其中，didRegisterForRemoteNotificationsWithDeviceToken方法接收到了token需要发送给服务器，服务器通过这个token值来给相应的设备推送消息。