创建 Empty Application时, storyboard 不显示的有关问题
创建 Empty Application时, storyboard 不显示的问题
原因: 1. 创建 Empty Application 时没有 Using Storyboard 选项,需要手动创建 MainStoryboard。
2. Changed Main Storyboard in Target's Summary view
3. For an Empty Application, the default implementation of didFinishLaunchingWithOptions is :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
原因:此处重新创建的 Window 把我们在 storyboard 里的 UI 给覆盖了。
4. update the default implementation of didFinishLaunchingWithOptions to the following:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
return YES;
}
BTW: if we create an Sing View Application, we can see that "Using storyboard" checkbox.
原因: 1. 创建 Empty Application 时没有 Using Storyboard 选项,需要手动创建 MainStoryboard。
2. Changed Main Storyboard in Target's Summary view
3. For an Empty Application, the default implementation of didFinishLaunchingWithOptions is :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
原因:此处重新创建的 Window 把我们在 storyboard 里的 UI 给覆盖了。
4. update the default implementation of didFinishLaunchingWithOptions to the following:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
return YES;
}
BTW: if we create an Sing View Application, we can see that "Using storyboard" checkbox.