[英]Disable SwipeRefreshLayout when horizintal scroll handled in two-way Recyclerview
我有一個帶有自定義 LayoutManager 的 RecyclerView,它具有雙向滾動邏輯。 所以,我已經覆蓋了它的方法:
override fun canScrollVertically(): Boolean = true
override fun canScrollHorizontally(): Boolean = true
然后我將 RecyclerView 放在自定義 SwipeRefreshLayout 中,以防止用戶水平滾動我的列表時出現“滑動刷新”操作:
class CustomSwipeToRefresh
@JvmOverloads
constructor(
context: Context,
attrs: AttributeSet? = null
) : SwipeRefreshLayout(context, attrs) {
private val touchSlop: Int = ViewConfiguration.get(context).scaledTouchSlop
private var startX = 0f
private var forbidSwipe = false
override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
when (event.action) {
ACTION_DOWN -> startX = event.x
ACTION_MOVE -> {
if (abs(event.x - startX) > touchSlop || forbidSwipe) {
forbidSwipe = true
return false
}
}
ACTION_CANCEL, ACTION_UP -> {
forbidSwipe = false
}
}
return super.onInterceptTouchEvent(event)
}
}
但是這個解決方案不起作用。 嘗試了這個解決方案(手動禁用),但它也不起作用:
override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
when (event.action) {
ACTION_DOWN -> startX = event.x
ACTION_MOVE -> {
if (abs(event.x - startX) > touchSlop || forbidSwipe) {
forbidSwipe = true
isEnabled = false
return false
}
}
ACTION_CANCEL, ACTION_UP -> {
isEnabled = true
forbidSwipe = false
}
}
return super.onInterceptTouchEvent(event)
}
無論如何,如果我寫
refreshLayout.isEnabled = false
在我的 onViewCreated 片段中,它被禁用了。
還嘗試在 RecyclerView.OnScrollListener 中禁用 SwipeRefreshLayout,但沒有幫助。 我的代碼或 SwipeRefreshLayout 有什么問題?
好的。 經過幾天的谷歌搜索,我發現所有顯示和移動微調器的魔法都位於 NestedScrollingParent 方法中。 所以,我覆蓋了 onNestedScroll 方法,如果forbidSwipe == true
我只是忽略超級方法:
class CustomSwipeToRefresh
@JvmOverloads
constructor(
context: Context,
attrs: AttributeSet? = null
) : SwipeRefreshLayout(context, attrs) {
private val touchSlop: Int = ViewConfiguration.get(context).scaledTouchSlop
private var startX = 0f
private var startY = 0f
private var forbidSwipe = false
private var isStartScrolledByY = false
override fun onInterceptTouchEvent(event: MotionEvent): Boolean {
when (event.action) {
ACTION_DOWN -> {
startX = event.x
startY = event.y
}
ACTION_MOVE -> {
val isScrolledByX = abs(event.x - startX) > touchSlop
val isScrolledByY = abs(event.y - startY) > touchSlop
if (!forbidSwipe && isScrolledByY) {
isStartScrolledByY = true
}
if ((isScrolledByX || forbidSwipe) && !isStartScrolledByY) {
forbidSwipe = true
return false
}
}
ACTION_CANCEL, ACTION_UP -> {
forbidSwipe = false
isStartScrolledByY = false
}
}
return super.onInterceptTouchEvent(event)
}
override fun onNestedScroll(target: View, dxConsumed: Int, dyConsumed: Int, dxUnconsumed: Int, dyUnconsumed: Int) {
if (forbidSwipe) return
super.onNestedScroll(target, dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed)
}
}
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