转载▼ 升级xcode6之后，直接建立Empty工程后发现，这是太坑，真的是什么都没有啊。只能换个方法了
总结如下：
1.新建一个single view application
2.打开 Info.plist（别告诉我不知道去哪里找info.plist），删除里面的 Launch screen interface file base name以及 Main Main storyboard file base name
3.删除Main.storyboard以及LaunchScreen.xib
4.在AppDelegate.m修改如下
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];
ViewController *vc = [[ViewController alloc]init];
[self.window setRootViewController:vc];
[self.window makeKeyAndVisible];
return YES;
}
// Override point for customization after application launch.
self.window = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];
ViewController *vc = [[ViewController alloc]init];
[self.window setRootViewController:vc];
[self.window makeKeyAndVisible];
return YES;
}
5.然后运行程序，发现在iPhone5s上的程序界面只有iPhone4上得大小了。这都是老问题了，添加图片Default-568h@2x.png。OK，全部搞定。。。