重写MotionLayout，拦截滑动事件
private var mInitX = 0f
private var mInitY = 0f
private var mTouchSlop = 10
override fun onInterceptTouchEvent(ev: MotionEvent): Boolean {
when (ev.actionMasked) {
MotionEvent.ACTION_DOWN -> {
mInitX = ev.x
mInitY = ev.y
}
MotionEvent.ACTION_MOVE -> {
val moveX = abs(ev.x - mInitX)
val moveY = abs(ev.y - mInitY)
//不拦截横滑事件
if (moveY > mTouchSlop && moveY > moveX) {
val obtain = MotionEvent.obtain(ev)
obtain.action = MotionEvent.ACTION_DOWN
dispatchTouchEvent(obtain)
onTouchEvent(obtain)
return true
}
}
MotionEvent.ACTION_UP -> {
}
}
return false
}
