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问题描述

限时删除!!

我正在实施自定义代码来处理对 Siri Remote 上的菜单按钮的点击.按下菜单按钮时,如何强制焦点切换到我的自定义菜单?

I am implementing custom code to handle a click on the Menu button on the Siri Remote.How can I force focus to change to my custom menu when pressing the menu button?

推荐答案

我自己终于想通了.您必须覆盖 UIViewUIViewControllerpreferredFocusedView 属性.

Finally figured it out myself. You have to override the preferredFocusedView property of your UIView or UIViewController.

在 Swift 中它是这样工作的:

In Swift it works like this:

func myClickHandler() {
    someCondition = true
    self.setNeedsFocusUpdate()
    self.updateFocusIfNeeded()
    someCondition = false
}

override weak var preferredFocusedView: UIView? {
    if someCondition {
        return theViewYouWant
    } else {
        return defaultView
    }
}

我不太记得如何在 Objective-C 中覆盖 getter,所以如果有人想发帖,我会编辑答案.

I can't quite remember how to override getters in Objective-C so if someone want to post that I'll edit the answer.

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1403页,肝出来的..

09-06 07:23