iOS中MMDrawerController导航控制器的点击手势实现求助

Hey there! I’ve used MMDrawerController in several projects, so I can help you out with gesture implementations—since the official docs can be a bit sparse on this detail. Here’s a breakdown of how to work with its built-in gestures and add custom ones:

1. Enable/Disable Default Gestures #

MMDrawerController comes with built-in pan and edge gestures for opening/closing the drawer. You can control which gestures are active using these properties:

// For opening the drawer
self.drawerController.openDrawerGestureModeMask = MMOpenDrawerGestureModeAll; // Enables all open gestures
// Or pick specific modes:
// MMOpenDrawerGestureModePanningNavigationBar
// MMOpenDrawerGestureModePanningCenterView
// MMOpenDrawerGestureModeBezelPanningCenterView

// For closing the drawer
self.drawerController.closeDrawerGestureModeMask = MMCloseDrawerGestureModeAll; // Enables all close gestures
// Specific modes:
// MMCloseDrawerGestureModePanningCenterView
// MMCloseDrawerGestureModePanningDrawer
// MMCloseDrawerGestureModeTapCenterView

If you want to disable all gestures entirely, just set the mask to MMOpenDrawerGestureModeNone or MMCloseDrawerGestureModeNone.

2. Add Custom Gestures #

If the default gestures don’t fit your use case, you can easily add custom gesture recognizers. For example, adding a double-tap gesture to toggle the drawer:

// Create a double-tap gesture recognizer
UITapGestureRecognizer *doubleTapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(toggleDrawerWithDoubleTap:)];
doubleTapGesture.numberOfTapsRequired = 2;

// Add it to your center view (or navigation bar, drawer view, etc.)
[self.drawerController.centerViewController.view addGestureRecognizer:doubleTapGesture];

Then implement the handler method:

- (void)toggleDrawerWithDoubleTap:(UITapGestureRecognizer *)gesture {
    if (gesture.state == UIGestureRecognizerStateEnded) {
        // Toggle the left drawer (use MMDrawerSideRight for right drawer)
        [self.drawerController toggleDrawerSide:MMDrawerSideLeft animated:YES completion:nil];
    }
}

You can replicate this pattern with UIPanGestureRecognizer too, if you want to define a custom pan area or behavior.

3. Resolve Gesture Conflicts #

If your center view has scrollable content (like a UITableView or UIScrollView), you might run into gesture conflicts with MMDrawerController’s pan gestures. To fix this, implement the UIGestureRecognizerDelegate method:

- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
    // Check if it's the drawer's pan gesture
    if ([gestureRecognizer isKindOfClass:[UIPanGestureRecognizer class]] && 
        gestureRecognizer == self.drawerController.panGestureRecognizer) {
        CGPoint translation = [(UIPanGestureRecognizer *)gestureRecognizer translationInView:self.view];
        // Allow the drawer gesture only if the pan is horizontal (for left/right drawers)
        if (fabs(translation.x) > fabs(translation.y)) {
            return YES;
        }
        // Let the scroll view handle vertical pans
        return NO;
    }
    return YES;
}

Don’t forget to set the delegate for the drawer’s gesture recognizer:

self.drawerController.panGestureRecognizer.delegate = self;

Hope this helps you get the gesture behavior you need! Let me know if you need further tweaks.

内容的提问来源于stack exchange，提问作者phadte viraj