小编Non*_*ouf的帖子

我是Swift的初学者,我正在尝试在Swift项目中使用JSONModel.我想从JSONModel覆盖方法keyMapper,但我没有找到如何覆盖模型类中的Objective-C类方法.

该方法的签名是:

+(JSONKeyMapper*)keyMapper;

我怎样才能做到这一点？

我已经在navigatiom栏中实现了一个带有搜索栏的UISearchController,我想在加载视图时使搜索栏处于活动状态.当我说活动时,我的意思是键盘出现,用户可以在不点击搜索栏的情况下输入他/她的搜索.

我使用以下代码初始化了UISearchController:

- (void)viewDidLoad
{
    self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
    [self.searchController setSearchResultsUpdater:self];
    [self.searchController setDimsBackgroundDuringPresentation:NO];
    [self.searchController setHidesNavigationBarDuringPresentation:NO];
    [self.navigationItem setTitleView:self.searchController.searchBar];

    [self setDefinesPresentationContext:YES];

    [self.searchController.searchBar setDelegate:self];
    [self.searchController.searchBar setShowsCancelButton:YES];
    [self.searchController.searchBar setPlaceholder:@"City or Airfield"];

    [self.searchController.searchBar sizeToFit];
}

我试图让我的搜索控制器处于活动状态,通话[self.searchController.searchBar becomeFirstResponder]并直接呼叫,searchBarSearchButtonClicked但没有任何作用.

我在使用CMake和Boost库时遇到了一些麻烦.我有以下错误:

CMake Error at C:/Program Files (x86)/CMake
2.8/share/cmake-2.8/Modules/FindBoost.cmake:1111 (message):   Unable to find the requested Boost libraries.

  Boost version: 1.55.0

  Boost include path: C:/local/boost_1_55_0

  Could not find the following static Boost libraries:

          boost_system
          boost_date_time
          boost_regex

  No Boost libraries were found.  You may need to set BOOST_LIBRARYDIR
to the   directory containing Boost libraries or BOOST_ROOT to the
location of   Boost. Call Stack (most recent call first):  
CMakeLists.txt:10 (find_package)


-- Configuring incomplete, errors occurred!

我在我的CMakeLists.txt中做了我在互联网上找到的所有内容,但它不起作用,我不明白.我正在使用Windows 8和Visual Studio 12,并且Boost安装在默认目录中.(C:/本地/ boost_1_55_0)

这是我的CMakeLists.txt:

cmake_minimum_required(VERSION 2.6)

project …