在 contentView 中禁用侧视图上的手势

Question

我在我的 collectionView 单元格中显示三个视图。一个完整的在中间，在 contentView 的角落预览下一个和上一个。并使用 panGesture 向上滑动中间视图。如何在侧视图上禁用 panGesture？

这是图片：

我在内容视图上添加了 panGestureRecognizer。但我不想让侧视图识别手势，而且我想让侧面图像的颜色很淡。我该怎么做？

Answer 1

您可以使用 UIGestureRecognizerDelegate。实现方法：

func wasDragged(gestureRecognizer: UIPanGestureRecognizer) {

    if gestureRecognizer.state == UIGestureRecognizerState.began {
        print("was dragged began")
    }
    if gestureRecognizer.state == UIGestureRecognizerState.changed {
        print("was dragged change \(gestureRecognizer.location(in: self.view))")
        testTouches(touches: gestureRecognizer.location(in: self.view))
    }
    if gestureRecognizer.state == UIGestureRecognizerState.ended {
        print("was dragged ended")
    }
}

比实现方法来测试触摸点：

func testTouches(touches: CGPoint) {
    // Get location of touch

    let touchLocation = touches
    // Convert the location of the side views to this view controller's view coordinate system
    let sideViewFrame = self.view.convert(sideView.frame, from: sideView.superview)// Check if touch is inside side view
    if sideViewFrame.contains(touchLocation) {
            // do nothing
        }
        else {
            // do something
        }
}