ios - 带侧面菜单的页面查看器(抽屉导航)

Question

我正在使用 REFrostedViewController作为一个侧边菜单 Controller ，问题是这个菜单会出现在屏幕的任何一点，我希望它像 Android 版本一样，只有当你从屏幕的开始左侧开始滑动时才会出现，如果从任何其他点滑动, 菜单将不会出现。

我想要这个是因为我在这个菜单中有一个页面查看器。由于我是IOS的新手，我查看了库代码并没有找到任何定义起点的函数也尝试修改消息panGestureRecognized 它没有工作。

所以我想向我推荐一个帮助或任何其他有选择的图书馆。

Answer 1

如果你关注了这个库那么我想你也放了这段代码

In ViewDidLoad

    [self.view addGestureRecognizer:[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panGestureRecognized:)]];

And 

- (void)panGestureRecognized:(UIPanGestureRecognizer *)sender
{
    // Dismiss keyboard (optional)
    //
    [self.view endEditing:YES];
    [self.frostedViewController.view endEditing:YES];

    // Present the view controller
    //
    [self.frostedViewController panGestureRecognized:sender];
}

用下面的代码替换上面的代码。

Confirm UIGestureRecognizerDelegate Delegate protocol

@interface DEMONavigationController () <UIGestureRecognizerDelegate>

In ViewDidLoad

    UIScreenEdgePanGestureRecognizer *leftEdgeGesture = [[UIScreenEdgePanGestureRecognizer alloc] initWithTarget:self action:@selector(handleLeftEdgeGesture:)];
    leftEdgeGesture.edges = UIRectEdgeLeft;
    leftEdgeGesture.delegate = self;
    [self.view addGestureRecognizer:leftEdgeGesture];}

And
- (void)handleLeftEdgeGesture:(UIScreenEdgePanGestureRecognizer *)gesture {

    if(UIGestureRecognizerStateBegan == gesture.state ||
       UIGestureRecognizerStateChanged == gesture.state) {
        [self.frostedViewController presentMenuViewController];


    }else{
        // DO nothing
    }
}