XMPP(加载mainStoryBoard之外的故事板)

#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate


- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    
    //获取LoginAndRegister的StoryBoard
    //展示window
    [self.window makeKeyAndVisible];
    
    UIStoryboard *loginStoryboard = [UIStoryboard storyboardWithName:@"LoginAndRegeist" bundle:nil];
    UIViewController *loginVC = [loginStoryboard instantiateInitialViewController];
    
    //模态登录页面
    [self.window.rootViewController presentViewController:loginVC animated:YES completion:nil];
    
    
    return YES;
}

由于系统默认加载main.storyboard,所以当我们添加了其他的storyboard之后想要先加载到我们自定的storyboard则需在appdelegate里面进行相应的设置