转：IOS推送代码

实例：
调用方法：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{//注册通知
    [application registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge |
     UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound];
｝

//实现 类
#pragma mark - RegisterForRemoteNotifications methods
- (void)application:(UIApplication *)application  didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)newDeviceToken
{
    //注册远方通知，获得DeviceToken
    NSString *str = [NSString stringWithFormat:@"Device Token=%@",newDeviceToken];
    NSLog(@"%@",str);
}

- (void)application:(UIApplication *)app didFailToRegisterForRemoteNotificationsWithError:(NSError *)err
{
    //注册失败
    NSString *str = [NSString stringWithFormat: @"Error: %@", err];
    NSLog(@"%@",str);
}

- (void)application:(UIApplication *)application  didReceiveRemoteNotification:(NSDictionary *)userInfo
{
    //收到通知
    NSString *topId = [NSString stringWithFormat:@"%@",
                       [[userInfo objectForKey:@"aps"] objectForKey:@"alert"]];

    //清除图标上的通知记录条数
    application.applicationIconBadgeNumber = ;

}

- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification
{
    //点击提示框的打开
    application.applicationIconBadgeNumber = ;
}