SWRevealViewController 在点击前视图时关闭后视图答案

【问题标题】：SWRevealViewController close rear view when tapping front viewSWRevealViewController 在点击前视图时关闭后视图
【发布时间】：2014-04-12 02:59:14
【问题描述】：

我正在使用SWRevealViewController 在我的应用程序中实现侧导航菜单。我想让它在打开后视图时不能与前视图交互，除非当用户点击前视图时，后视图将关闭并且可以再次与前视图交互。我有这两个 SWRevealViewController 委托方法，它们当前从前视图中删除交互。

- (void)revealController:(SWRevealViewController *)revealController willMoveToPosition:    (FrontViewPosition)position {
    if(position == FrontViewPositionLeft) {
        self.view.userInteractionEnabled = YES;
    } else {
        self.view.userInteractionEnabled = NO;
    }
}

- (void)revealController:(SWRevealViewController *)revealController didMoveToPosition:    (FrontViewPosition)position {
    if(position == FrontViewPositionLeft) {
        self.view.userInteractionEnabled = YES;
    } else {
        self.view.userInteractionEnabled = NO;
    }
}

但是，当点击前视图时，这不会导致后视图关闭。任何帮助将不胜感激，谢谢！

【问题讨论】：

你是如何实现这个的？在哪里？
这可能对你有帮助：nsrover.wordpress.com/2014/08/06/…

标签： ios objective-c swrevealviewcontroller

【解决方案1】：

如果您使用的是 SWIFT，您可以在 frontViewController 中执行以下操作：

override func viewDidLoad() {
    super.viewDidLoad()

    if self.revealViewController() != nil {

        self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())
        self.view.addGestureRecognizer(self.revealViewController().tapGestureRecognizer())
    }

}

代码适用于 TAP 和 PAN 手势。

【讨论】：

完美运行！ Xcode 7.1, ios9, SWReveal 版本 2.4.0
有谁知道如何快速测试侧边菜单是否打开？
我们应该在 viewDidAppear 或 viewWillAppear 上添加@Adam 的代码以使其正常工作。

【解决方案2】：

在你的frontViewController的ViewDidLoad中你需要添加一个UITapGestureRecognizer

SWRevealViewController *revealController = [self revealViewController];
UITapGestureRecognizer *tap = [revealController tapGestureRecognizer];
tap.delegate = self;

[myView addGestureRecognizer:tap];

当点击前视图时，这应该会导致后视图关闭，这是SWRevealViewController 的默认行为。

【讨论】：

这太棒了。如果有按钮可以阻止您的关闭点击，请在前面添加一个虚拟视图。
有一个 SWRevealViewController 的分支：nsrover.wordpress.com/2014/08/06/…
有人可以建议任何方法，如何覆盖 SWRevealViewController 的滑动手势以作用于前视图上的其他手势，例如当用户从屏幕边缘滑动时滚动视图？

【解决方案3】：

编辑： 更改 UIView 的 autoresizingMask 以适应 Swift 2，感谢 Marroc 的 comment

这是@avdyushin 答案的Swift-SWRevealViewController 2.x 版本：

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
            }
        )
    }
}

【讨论】：

如果你使用 Swift 2，将 "lock.autoresizingMask" 行更改为： lock.autoresizingMask = [UIViewAutoresizing.FlexibleWidth, UIViewAutoresizing.FlexibleHeight]
正确而简单的答案具有相当有用的逻辑，除此之外也可以应用于许多地方。
@mixth 。对我来说，为什么根本没有调用 willMoveToPosition 你能帮我解释为什么会发生这种情况

【解决方案4】：

SWRevealViewController 的子类。
实现revealController:willMoveToPosition: of SWRevealViewControllerDelegate。
在前视图控制器上设置全屏视图以覆盖所有触摸。
添加点击手势识别器以隐藏菜单。

带有漂亮动画的示例：

- (void)revealController:(SWRevealViewController *)revealController willMoveToPosition:(FrontViewPosition)position;
{
    static NSInteger tagLockView = 4207868622;
    if (revealController.frontViewPosition == FrontViewPositionRight) {
        UIView *lock = [self.frontViewController.view viewWithTag:tagLockView];
        [UIView animateWithDuration:0.25 animations:^{
            lock.alpha = 0;
        } completion:^(BOOL finished) {
            [lock removeFromSuperview];
        }];
    } else if (revealController.frontViewPosition == FrontViewPositionLeft) {
        UIView *lock = [[UIView alloc] initWithFrame:self.frontViewController.view.bounds];
        lock.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
        lock.tag = tagLockView;
        lock.backgroundColor = [UIColor blackColor];
        lock.alpha = 0;
        [lock addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(revealToggle:)]];
        [self.frontViewController.view addSubview:lock];
        [UIView animateWithDuration:0.75 animations:^{
            lock.alpha = 0.333;
        }];
    }
}

此解决方案适用于旧版本 1.x SWRevealViewController。

【讨论】：

【解决方案5】：

考虑一下这个简单的解决方案，效果很好

private let DimmingViewTag = 10001

extension UIViewController: SWRevealViewControllerDelegate {    

    func setupMenuGestureRecognizer() {

        revealViewController().delegate = self

        view.addGestureRecognizer(revealViewController().panGestureRecognizer())
        view.addGestureRecognizer(revealViewController().tapGestureRecognizer())
    }

    //MARK: - SWRevealViewControllerDelegate

    public func revealController(revealController: SWRevealViewController!, didMoveToPosition position: FrontViewPosition) {

        if case .Right = position {

            let dimmingView = UIView(frame: view.frame)
            dimmingView.tag = DimmingViewTag

            view.addSubview(dimmingView)
            view.bringSubviewToFront(dimmingView)

        } else {
            view.viewWithTag(DimmingViewTag)?.removeFromSuperview()
        }
    }
}

UIViewController中的简单用法：

override func viewDidAppear(animated: Bool) {
    super.viewDidAppear(animated)

    setupMenuGestureRecognizer()
}

【讨论】：

【解决方案6】：

将下面的代码放在菜单视图控制器上它对我有用

@interface SidebarTableViewController() {
    UIView* coverView;
}

- (void)viewWillDisappear:(BOOL)animated {
    [coverView removeFromSuperview];
    //[self.revealViewController.frontViewController.view setUserInteractionEnabled:YES];
    // get your window screen size
}

- (void)viewWillAppear:(BOOL)animated {
    // get your window screen size
    CGRect screenRect = [[UIScreen mainScreen] bounds];
    //create a new view with the same size
    coverView = [[UIView alloc] initWithFrame:screenRect];
    // change the background color to black and the opacity to 0.6
    coverView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.6];
    // add this new view to your main view
    [self.revealViewController.frontViewController.view addSubview:coverView];
    // [self.revealViewController.frontViewController.view setUserInteractionEnabled:NO];
}

【讨论】：

【解决方案7】：

感谢mixth 和avdyushin 的大力帮助。这是从那里获得的 Swift 4 版本，可以节省您的几个小时：

extension UIViewController: SWRevealViewControllerDelegate {

func setupMenuGestureRecognizer() {

    revealViewController().delegate = self

    view.addGestureRecognizer(revealViewController().panGestureRecognizer())
    view.addGestureRecognizer(revealViewController().tapGestureRecognizer())
}

//MARK: - SWRevealViewControllerDelegate
public func revealController(_ revealController: SWRevealViewController!, willMoveTo position: FrontViewPosition) {
    let tagId = 112151
    print("revealController delegate called")
    if revealController.frontViewPosition == FrontViewPosition.right {
        let lock = self.view.viewWithTag(tagId)
        UIView.animate(withDuration: 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.black
        lock.addGestureRecognizer(UITapGestureRecognizer(target: self.revealViewController(), action: #selector(SWRevealViewController.revealToggle(_:))))
        self.view.addSubview(lock)
        UIView.animate(withDuration: 0.75, animations: {
            lock.alpha = 0.333
        }
        )
    }
}

}

现在从后视控制器的 viewDidLoad 调用此函数 setupMenuGestureRecognizer。

或者您也可以直接在您的后视控制器类中实现 SWRevealViewControllerDelegate，并在类本身中使用 SWRevealViewControllerDelegate 函数。

【讨论】：

多么棒的解决方案，没有比这更好的了。非常感谢。
@ArafinRussell 谢谢✌?

【解决方案8】：

我使用了tapGestureRecognizer，但还是有一些问题。我试过了，效果很好！

定义类：

@interface IgnoreView : UIView

@property (nonatomic, assign) BOOL shouldAllTouchesBeForMe;

@end

实现：

@implementation IgnoreView

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
    if( self.shouldAllTouchesBeForMe ){
        return self;
    }
    return [super hitTest:point withEvent:event];
}

@end

然后在 IgnoreView 类的 Interface Builder 中创建您的 View 类

然后，在您的 ViewController 中执行以下操作：

在 - viewDidLoad

self.revealViewController.delegate = self;
[self.view addGestureRecognizer:self.revealViewController.tapGestureRecognizer];

你的视图控制器中的实现也是：

- (void)revealController:(SWRevealViewController *)revealController didMoveToPosition:(FrontViewPosition)position
{
    IgnoreView *i = (id)self.view;
    i.shouldAllTouchesBeForMe = position == FrontViewPositionRight;
}

一切就绪！

【讨论】：

【解决方案9】：

在您的 菜单视图控制器上，添加：

-(void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    [self.revealViewController.frontViewController.view setUserInteractionEnabled:NO];
}

-(void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];

    [self.revealViewController.frontViewController.view setUserInteractionEnabled:YES];
}

然后在您的 Menu Item View Controller 上，将其添加到 viewDidLoad：

SWRevealViewController *revealController = [self revealViewController];
[revealController tapGestureRecognizer];

还请查看我的回答 here。它解决了前视图交互（加上滑动手势）的问题。

【讨论】：

正因为如此，菜单不会因为一切都被禁用而隐藏起来！！！你有“运气不好的宝贝”。