如何在Swift 2.0的swrevealviewcontroller中知道菜单是否打开

Question

我在ios中制作了一个应用程序。 我已经使用swrevealviewcontroller作为菜单了。无论菜单是否打开，我都需要键盘分配器。 那么如何识别菜单是否打开？

Answer 1

迅捷3

• 将SWRevealViewControllerDelegate添加到您的控制器

• 在viewDidLoad（）中将revealViewControllerDelegate设置为self

   self.revealViewController().delegate = self 

• 在你的viewController实现本功能与（didMoveTo）或一个与（willMoveTo）

---

func revealController(_ revealController: SWRevealViewController!, didMoveTo position: FrontViewPosition) {

    switch position {

    case FrontViewPosition.leftSideMostRemoved:
        print("LeftSideMostRemoved")
        // Left most position, front view is presented left-offseted by rightViewRevealWidth+rigthViewRevealOverdraw

    case FrontViewPosition.leftSideMost:
        print("LeftSideMost")
        // Left position, front view is presented left-offseted by rightViewRevealWidth

    case FrontViewPosition.leftSide:
        print("LeftSide")

        // Center position, rear view is hidden behind front controller
    case FrontViewPosition.left:
        print("Left")
        //Closed
        //0 rotation


        // Right possition, front view is presented right-offseted by rearViewRevealWidth
    case FrontViewPosition.right:
        print("Right")
        //Opened
        //rotated

        // Right most possition, front view is presented right-offseted by rearViewRevealWidth+rearViewRevealOverdraw

    case FrontViewPosition.rightMost:
        print("RightMost")
        // Front controller is removed from view. Animated transitioning from this state will cause the same
        // effect than animating from FrontViewPositionRightMost. Use this instead of FrontViewPositionRightMost when
        // you intent to remove the front controller view from the view hierarchy.

    case FrontViewPosition.rightMostRemoved:
        print("RightMostRemoved")

    }

}

Answer 2

如果要在代码中检查frontViewPosition的状态，请检查frontViewPosition属性

   if (self.revealViewController().frontViewPosition != FrontViewPosition.Left) { 
   // Do something 
   }

如果希望收到有关菜单切换的通知，请在委托中实现以下SWRevealViewControllerDelegate方法。 （您要观察这些变化的地方）

- (void)revealController:(SWRevealViewController *)revealController willMoveToPosition:(FrontViewPosition)position;
- (void)revealController:(SWRevealViewController *)revealController didMoveToPosition:(FrontViewPosition)position;

Answer 3

对于jonkykong / SideMenu

实现UISideMenuNavigationControllerDelegate

func sideMenuDidAppear(menu: UISideMenuNavigationController, animated: Bool) {
    print("SideMenu Appeared! (animated: \(animated))")
}

func sideMenuDidDisappear(menu: UISideMenuNavigationController, animated: Bool) {
    print("SideMenu Disappeared! (animated: \(animated))")
}