我正在尝试处理UIApplication Notifications以在当前打开的视图中获取URL Schemes.我尝试了几个通知,但我不知道哪个对象包含URL Schemes. 
  
  
 
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];
    //[nc addobserver:self selector:@selector(DocumentToDropBoxDelegate) name:UIApplicationWillResignActiveNotification object:nil];
    [nc addobserver:self selector:@selector(DocumentToDropBoxDelegate) name:UIApplicationDidFinishLaunchingNotification object:nil]; 
 有人pelase可以帮助我解决这个问题.
解决方法
 正如@Mike K所提到的,你必须实现以下一种方法(或两种方法): 
  
  
 
        - application:handleOpenURL: - application:openURL:sourceApplication:annotation:
在您的UIApplicationDelegate上.没有匹配的通知.
示例如下:
-(BOOL) application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(Nsstring *)sourceApplication annotation:(id)annotation
{
    if (url != nil && [url isFileURL]) {
        [self.viewController handleOpenURL:url];
    }
    return YES;
}
//Deprecated
-(BOOL) application:(UIApplication *)application handleOpenURL:(NSURL *)url {
    if (url != nil && [url isFileURL]) {
        [self.viewController handleOpenURL:url];
    }
    return YES;
}