事件分发的精髓无外乎于此，写一个右滑消失的ViewGroup，不影响子view的事件接收

SwipeDismissLayout.kt

import android.content.Context
import android.util.AttributeSet
import android.view.MotionEvent
import android.widget.FrameLayout

/**
 * @author:         zhaochunyu
 * @description:    滑动消失ViewGroup
 * @date:           2019-06-25
 */
class SwipeDismissLayout : FrameLayout {

    constructor(context: Context?) : super(context)
    constructor(context: Context?, attrs: AttributeSet?) : super(context, attrs)

    private var downX = 0F
    private var distance = 0F
    override fun dispatchTouchEvent(event: MotionEvent): Boolean {

        when (event.action) {
            MotionEvent.ACTION_DOWN -> {
                distance = 0F
                downX = event.rawX
            }
            MotionEvent.ACTION_MOVE -> {
                distance = event.rawX - downX
                if (distance > 60) {
                    translationX = distance
                }
            }
            MotionEvent.ACTION_UP -> {
                distance = event.rawX - downX
                if (distance < width / 2) {
                    translationX = 0F
                }
                if (distance > width / 2) {
                    translationX = width.toFloat()
                    listener?.invoke()
                }
            }
        }
        // 滑动时候不要把事件传递给子view
        return if (distance > 60) {
            true
        } else {
            super.dispatchTouchEvent(event)
        }
    }

    private var listener: (() -> Unit)? = null
    fun setDismissListener(l: () -> Unit) {
        listener = l
    }


    // 消费事件，不被父布局接收，如果SwipeDismissLayout及其子view没有设置点击事件，那么点击其内容事件会直接传递到SwipeDismissLayout的父布局
    override fun onTouchEvent(event: MotionEvent?): Boolean {
        return true
    }
}