如何在横向方向上推出通用的Xcode 5 app项目？ [英] How to make universal Xcode 5 app project launch in landscape orientation?

问题描述

我创建了一个单一视图应用程序项目，并设置了所有选项以启动并仅支持横向。但应用程序以纵向方向启动窗口。

I created a "Single View Application" project and set all options to launch and support only landscape orientation. But the app launches with its window in portrait orientation.

控制台输出显示应用程序后面的窗口：didFinishLaunchingWithOptions：是：

{{0, 0}, {768, 1024}}

我添加了一个标准系统按钮来查看ViewController，以说明应用程序是横向而非纵向，但窗口是纵向的。

I added a standard system button to view of ViewController to illustrate that the app is landscape and not portrait, but that the window is portrait.

因为堆栈溢出有白色背景我在Photoshop中将右边的部分变成灰色，所以你可以看到它：

Because stack overflow has white background I colored the right part gray in Photoshop so you can see it:

在应用程序中： didFinishLaunchingWithOptions：我将窗口涂成红色。它显然不是横向的。

In application:didFinishLaunchingWithOptions: I colored the window red. It is clearly not in landscape orientation.

我已经尝试了我所知道的所有技巧：

I have tried all the tricks I know:

1）信息.plist包含UISupportedInterfaceOrientations键，其中包含：
UIInterfaceOrientationLandscapeLeft和UIInterfaceOrientationLandscapeRight

1) Info.plist contains UISupportedInterfaceOrientations key with: UIInterfaceOrientationLandscapeLeft and UIInterfaceOrientationLandscapeRight

2）Info.plist包含UISupportedInterfaceOrientations~ipad键：
UIInterfaceOrientationLandscapeLeft和UIInterfaceOrientationLandscapeRight

2) Info.plist contains UISupportedInterfaceOrientations~ipad key with: UIInterfaceOrientationLandscapeLeft and UIInterfaceOrientationLandscapeRight

3）Info.plist包含初始界面方向的UIInterfaceOrientation键：
UIInterfaceOrientationLandscapeRight

3) Info.plist contains UIInterfaceOrientation key for initial interface orientation: UIInterfaceOrientationLandscapeRight

4）点击Xcode中的项目然后取消选中所有肖像选项，只检查横向选项：

4) Clicked on the project in Xcode and then unchecked all portrait options and only checked the landscape options:

5）AppDelegate和ViewController都有：

5) AppDelegate and the ViewController both have:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return UIInterfaceOrientationIsLandscape(interfaceOrientation);
}

- (NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}

- (BOOL)shouldAutorotate {
    return YES;
}

6）AppDelegate有：

6) AppDelegate has:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
    return UIInterfaceOrientationMaskLandscapeLeft | UIInterfaceOrientationMaskLandscapeRight;
}

Xcode创建了两个故事板文件。我现在只在iPad上测试。一个是Main_iPad.storyboard，它显示了一个纵向的视图控制器。但它只是一个模拟的界面指标。更改为横向并且预期无效。

Xcode created two storyboard files. I am only testing on iPad right now. One is Main_iPad.storyboard and it shows a view controller which was in portrait. But it was only a simulated interface metric. Changed to landscape and as expected no effect.

在应用程序启动期间，我检查UIScreen边界，它也显然是肖像，而不是横向：

During app launch I check UIScreen bounds and it also is clearly portrait, not landscape:

CGRect screenBounds = [[UIScreen mainScreen] bounds]; // {{0, 0}, {768, 1024}}

如何启动它在横向和横向创建一个窗口？

How can I make it launch in landscape and create a window in landscape orientation?

推荐答案

我之前遇到过类似的问题，所以也许他们有关系.. 。

I had a similar problem before, so maybe they're related...

我遇到了问题，因为我在视图控制器的 initWithNibName：bundle：中以编程方式创建视图无论出于何种原因，在应用程序的其余部分运行横向时，这样做会以纵向模式定向新视图。

I had a problem because I was creating my view programmatically in my view controller's initWithNibName:bundle: and for whatever reason, doing so orients the new view in portrait mode while the rest of the app is running landscape.

我发现了两个针对此问题的修复程序。 1）使用故事板而不是以编程方式创建视图或2）移动代码以从视图控制器的 initWithNibName：bundle：方法创建视图并将其放在视图控制器中 -viewDidLoad：这样的方法：

I found two fixes for this problem. 1) Create the view using your storyboard instead of programmatically or 2) move the code to create the view from your view controller's initWithNibName:bundle: method and place it in the view controller's -viewDidLoad: method like this:

-(void)viewDidLoad {
    //Create your view programmatically
    UIView *view = [[UIView alloc] initWithFrame:self.view.frame];
    //Customize view
    [self.view addSubview:view];
}

这是我遇到类似问题的解决方案。虽然我认识到有很多方法可以让程序员无法正常工作，但我希望这就是答案！

That was the solution for a similar problem I had. While I recognize that there's a myriad of ways that we programmers can make things not work the right way, I hope this is the answer!

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