小编wan*_*eng的帖子

我在我的应用程序中使用UIWebView,它在Xcode4,5,6模拟器中都运行良好.但不适用于Xcode 7模拟器,我不知道为什么,模拟器中没有警告或错误,而且屏幕只显示空白页面.请帮我.谢谢.

#import "IndexViewController.h"

@interface IndexViewController ()

@end

@implementation IndexViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    NSString *urlString = nil;
    NSString *languageCode = [[NSLocale preferredLanguages] objectAtIndex:0];
    if ([languageCode isEqualToString:@"zh-Hans"]) {
        urlString = @"http://www.originoftime.net/index-cn";
    }else if ([languageCode isEqualToString:@"zh-Hant"]) {
        urlString = @"http://www.originoftime.net/index-cn";
    }else{
        urlString = @"http://www.originoftime.net/index-en";
    }
    NSURL *url = [NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]];

    NSURLRequest *urlrequest = [NSURLRequest requestWithURL:url];

    [_Index loadRequest:urlrequest];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

我的选项中有以下内容:

<option value="Kabardino-Balkar Republic">Kabardino-Balkar Republic</option>
<option value="Karachay-Cherkess Republic">Karachay-Cherkess Republic</option>
<option value="Karelia Republic">Karelia Republic</option>
<option value="Komi Republic">Komi Republic</option>
<option value="Mari El Republic">Mari El Republic</option>
<option value="Mordovia Republic">Mordovia Republic</option>

..我希望它们采用以下格式:

<option value="Kabardino-BalkarRepublic">Kabardino-Balkar Republic</option>
<option value="Karachay-CherkessRepublic">Karachay-Cherkess Republic</option>
<option value="KareliaRepublic">Karelia Republic</option>
<option value="KomiRepublic">Komi Republic</option>
<option value="MariElRepublic">Mari El Republic</option>
<option value="MordoviaRepublic">Mordovia Republic</option>

如何value在保持连字符完整的同时删除属性中大写单词之间的空格？

在Xcode 7中,我得到了这个黄色警告:null传递给需要非null参数的被调用者.我的代码在下面,第五行突出显示(零部分)(mainVC.currentActiveNVC.viewControllers = nil;)请帮帮我.谢谢.

if (!mainVC.isInitialStart)
{
    CGRect openedFrame = mainVC.currentActiveNVC.view.frame;
    [mainVC.currentActiveNVC.view removeFromSuperview];
    mainVC.currentActiveNVC.viewControllers = nil;
    mainVC.currentActiveNVC = nil;

    mainVC.currentActiveNVC = destinationNVC;
    mainVC.currentActiveNVC.view.frame = openedFrame;
    navItem = destinationNVC.navigationBar.topItem;

}