iOS - 使用 CustomGestureRecognizer 设置键盘位置

Question

“iMessage”和“Facebook Messenger”等应用程序允许用户通过向下滑动将键盘移出屏幕。我可以使用 CustomGestureRecognizer 设置其他 View 在屏幕上移动。 (下面的片段)

    override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent) {

        let window = view?.window
        if state == .Failed {
            return
        } else if let loc = touches.first?.locationInView(window) {
            displacement = loc.y - swipeStartingY
            delegatePass?.didSlowSwipe(displacement)
            state = .Changed
        }
        super.touchesMoved(touches, withEvent: event)
    }

How do these apps set the frame.origin.y of the keyboard to move it down and off the screen?

--已解决

How do I get my UITextView that sits above the keyboard to follow the keyboard, now that scrollView.keyboardDismissMode = .Interactive?

Answer 1

一旦收到来自手势识别器的回调，循环遍历所有 View 以查找哪个 View 是响应者(也称为当前正在编辑的 View )并调用方法“view.endEditing(true)”以使键盘解雇。

Facebook Messenger 应用程序刚刚结束文本字段的编辑，导致键盘关闭。