Swift 未调用preferredFocusEnvironments
未为嵌入到容器视图中的视图控制器调用preferredFocusEnvironmentsSwift 未调用preferredFocusEnvironments,swift,tvos,uicontainerview,apple-tv,Swift,Tvos,Uicontainerview,Apple Tv,未为嵌入到容器视图中的视图控制器调用preferredFocusEnvironments 对于这些情况，还有什么需要做的吗？您需要覆盖父视图控制器的var preferredFocusEnvironments:[UIFocusEnvironment]： override var preferredFocusEnvironments:[UIFocusEnvironment]{return[childViewController]}
对于这些情况，还有什么需要做的吗？您需要覆盖父视图控制器的
var preferredFocusEnvironments:[UIFocusEnvironment]override var preferredFocusEnvironments:[UIFocusEnvironment]{return[childViewController]}