iOS 错误 : Supported orientations has no common orientation with the application (iPhone)

Question

使用 iOS 8.3

我有一个横向模式的 View ，我正在尝试打开一个仅纵向 View Controller 。每次我尝试打开它时，应用程序都会崩溃。

我读过这个official apple answer基本上建议执行以下操作:

在应用委托(delegate)中:

@implementation AppDelegate

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
        return UIInterfaceOrientationMaskAll;
    else  /* iphone */
        return UIInterfaceOrientationMaskAllButUpsideDown;
} 

在我的 Controller 中:

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

所以我有，但我仍然收到此崩溃消息:

Terminating app due to uncaught exception 'UIApplicationInvalidInterfaceOrientation', reason: 'Supported orientations has no common orientation with the application, and [PUUIAlbumListViewController shouldAutorotate] is returning YES

在项目常规设置中我有以下内容(根据苹果的回答不应更改):

我可以看到实际上正在调用这些函数，但没有任何帮助。有什么想法吗？

我之前读到的一些问题:

How to force a UIViewController to Portrait orientation in iOS 6

iOS6: supportedInterfaceOrientations not working (is invoked but the interface still rotates)

Supported orientations has no common orientation with the application, and shouldAutorotate is returning YES'

Answer 1

概要: application(_:, supportedInterfaceOrientationsForWindow) -> Int 确实覆盖了 General > Deployment Info。因此，一旦您在应用程序委托(delegate)中提供了 supportedInterfaceOrientationsForWindow，您就可以完全忽略该 .plist。请参阅有关 UIInterfaceOrientationMaskPortrait 的注释。

在 Obj-C 和 Swift 中以各种方式尝试了上面的代码，我唯一一次得到...

'UIApplicationInvalidInterfaceOrientation', reason: 'Supported orientations has no common orientation with the application, and [ViewController shouldAutorotate] is returning YES'

...是什么时候:

1. 使用 UIInterfaceOrientationPortrait 代替 UIInterfaceOrientationMaskPortrait(ma​​sk 是这里的关键字)
2. 或supportedInterfaceOrientations返回不在supportedInterfaceOrientationsForWindow
中列出的掩码

---

A. 将此 block 放在采用UIApplicationDelegate 协议(protocol)的类中(通常是AppDelegate.m 或AppDelegate.swift):

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
        return UIInterfaceOrientationMaskAll;
    else  /* iphone */
        return UIInterfaceOrientationMaskAllButUpsideDown;
} 

supportedInterfaceOrientations 将覆盖部署信息，并允许在运行时动态区分 iPhone 和 iPad。

---

B. 将此 block 放在您想要特定行为的 UIViewController 子类中(通常是 CustomViewController.m 或 CustomViewController .swift):

Obj-C

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

swift

override func supportedInterfaceOrientations() -> Int {
    let supported = UIInterfaceOrientationMask.Portrait.rawValue
    return Int(supported)
}

已测试 iOS 8.4