如何使用 SWRevealViewController 禁用侧边栏菜单中的交互

Question

我按照 AppCoda.com 的侧边栏菜单教程进行操作，但遇到了问题。当用户在菜单中时，我想禁用用户交互。现在，尽管在菜单中，用户仍然可以与主屏幕进行交互。

问题截图链接： http://i.imgur.com/1gld2bY.gifv

Answer 1

将此代码放入您的 TableViewController 即菜单项控制器中。本质上，这是位于主视图后面的视图控制器。

这也会使您的主视图变暗，如果您不希望这样，请将 alpha 分量设置为 0。

let darkView = UIView()

override func viewWillAppear(_ animated: Bool) {

    darkView.addGestureRecognizer(revealViewController().tapGestureRecognizer())
    darkView.backgroundColor = UIColor.black.withAlphaComponent(0.7)
    darkView.frame = self.revealViewController().frontViewController.view.bounds
    self.revealViewController().frontViewController.view.addSubview(darkView)
}

override func viewWillDisappear(_ animated: Bool) {
    darkView.removeFromSuperview()
}

Answer 2

如果您使用 SWRevealViewController 作为侧边栏。使用下面的代码

func revealController(revealController: SWRevealViewController!, willMoveToPosition position: FrontViewPosition) {
let tagId = 4207868622

if revealController.frontViewPosition == FrontViewPosition.Right {
    let lock = self.view.viewWithTag(tagId)
    UIView.animateWithDuration(0.25, animations: {
            lock?.alpha = 0
        }, completion: {(finished: Bool) in
            lock?.removeFromSuperview()
        }
    )
    lock?.removeFromSuperview()
} else if revealController.frontViewPosition == FrontViewPosition.Left {
    let lock = UIView(frame: self.view.bounds)
    lock.autoresizingMask = [.FlexibleWidth, .FlexibleHeight]
    lock.tag = tagId
    lock.alpha = 0
    lock.backgroundColor = UIColor.blackColor()
    lock.addGestureRecognizer(UITapGestureRecognizer(target: self.revealViewController(), action: "revealToggle:"))
    self.view.addSubview(lock)
    UIView.animateWithDuration(0.75, animations: {
            lock.alpha = 0.333
            }
        )
    }
}

注意：不要忘记在你的视图控制器中添加self.revealViewController().delegate = self，否则代理将不会被调用