open class RecyclerItemTouchHelper(dragDirs: Int, swipeDirs: Int, private val listener: RecyclerItemTouchHelperListener) : ItemTouchHelper.SimpleCallback(dragDirs, swipeDirs) {
override fun onMove(recyclerView: androidx.recyclerview.widget.RecyclerView, viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder, target: androidx.recyclerview.widget.RecyclerView.ViewHolder): Boolean {
return true
}
override fun onSelectedChanged(viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder?, actionState: Int) {
if (viewHolder != null) {
val foregroundView = (viewHolder as InboxListAdapter.InboxItemHolder).viewForeground
getDefaultUIUtil().onSelected(foregroundView)
}
}
override fun onChildDrawOver(c: Canvas, recyclerView: androidx.recyclerview.widget.RecyclerView,
viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder, dX: Float, dY: Float,
actionState: Int, isCurrentlyActive: Boolean) {
val foregroundView = (viewHolder as InboxListAdapter.InboxItemHolder).viewForeground
getDefaultUIUtil().onDrawOver(c, recyclerView, foregroundView, dX, dY,
actionState, isCurrentlyActive)
}
override fun clearView(recyclerView: androidx.recyclerview.widget.RecyclerView, viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder) {
val foregroundView = (viewHolder as InboxListAdapter.InboxItemHolder).viewForeground
getDefaultUIUtil().clearView(foregroundView)
}
override fun onChildDraw(c: Canvas, recyclerView: androidx.recyclerview.widget.RecyclerView,
viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder, dX: Float, dY: Float,
actionState: Int, isCurrentlyActive: Boolean) {
val foregroundView = (viewHolder as InboxListAdapter.InboxItemHolder).viewForeground
getDefaultUIUtil().onDraw(c, recyclerView, foregroundView, dX, dY,
actionState, isCurrentlyActive)
listener.onChildDraw(viewHolder, viewHolder.adapterPosition, dX, dY)
}
override fun onSwiped(viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder, direction: Int) {
listener.onSwiped(viewHolder, direction, viewHolder.adapterPosition)
}
override fun convertToAbsoluteDirection(flags: Int, layoutDirection: Int): Int {
return super.convertToAbsoluteDirection(flags, layoutDirection)
}
override fun getSwipeDirs(recyclerView: androidx.recyclerview.widget.RecyclerView, viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder): Int {
listener.getSwipeDirs(viewHolder)
return super.getSwipeDirs(recyclerView, viewHolder)
}
interface RecyclerItemTouchHelperListener {
fun onSwiped(viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder, direction: Int, position: Int)
fun onChildDraw(viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder, position: Int, dX : Float, dY : Float)
fun getSwipeDirs(viewHolder: androidx.recyclerview.widget.RecyclerView.ViewHolder)
}
}
// onCreatView фрагмента / OnCreate активности
recyclerView_inbox.setOnTouchListener { _, motionEvent ->
if (motionEvent.action == MotionEvent.ACTION_DOWN) {
val point = Point(motionEvent.x.toInt(), motionEvent.y.toInt())
if (mSwipeState == SWIPE_STATE_RIGHT) {
if (mItemClickRegionRect!!.contains(point.x, point.y)) {
when {
mSpamBtnClickRegionRect!!.contains(point.x, point.y) ->{}
mMoveBtnClickRegionRect!!.contains(point.x, point.y) -> {
moveMailDialog()
}
mUnreadBtnClickRegionRect!!.contains(point.x, point.y) ->{
markUnread()
}
}
}
}
}
false
}
mItemTouchHelperCallback = RecyclerItemTouchHelper(0, ItemTouchHelper.LEFT or ItemTouchHelper.RIGHT, this)
ItemTouchHelper(mItemTouchHelperCallback!!).attachToRecyclerView(recyclerView_inbox)
// реализован обратный вызов во фрагменте / Activity
override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int, position: Int) {
if (viewHolder is InboxListAdapter.InboxItemHolder) {
if (direction == ItemTouchHelper.LEFT) {
val item = mInboxListAdapter!!.getItem(position)
// mInboxListAdapter!!.removeItem(position)
// Toast.makeText(context, "Deleted", Toast.LENGTH_SHORT).show()
mPresenter.deleteMail(item, mFolderName!!, mFolderId!!, 20, 0, "", mTrashfolderId, position)
}
mFlagSwiped = true
mEditPosition = viewHolder.adapterPosition
val spamBtnView = viewHolder.spamButtonLayout
val unreadBtnView = viewHolder.unreadButtonLayout
val moveBtnView = viewHolder.moveButtonLayout
mItemClickRegionRect = Rect(viewHolder.itemView.left,
viewHolder.itemView.top + recyclerView_inbox.y.toInt(),
viewHolder.itemView.right,
viewHolder.itemView.bottom + recyclerView_inbox.y.toInt())
mSpamBtnClickRegionRect = Rect(spamBtnView.left + mItemClickRegionRect!!.left,
spamBtnView.top + mItemClickRegionRect!!.top,
spamBtnView.right + mItemClickRegionRect!!.left,
spamBtnView.bottom + mItemClickRegionRect!!.top)
mUnreadBtnClickRegionRect = Rect(unreadBtnView.left + mItemClickRegionRect!!.left,
unreadBtnView.top + mItemClickRegionRect!!.top,
unreadBtnView.right + mItemClickRegionRect!!.left,
unreadBtnView.bottom + mItemClickRegionRect!!.top)
mMoveBtnClickRegionRect = Rect(moveBtnView.left + mItemClickRegionRect!!.left,
moveBtnView.top + mItemClickRegionRect!!.top,
moveBtnView.right + mItemClickRegionRect!!.left,
moveBtnView.bottom + mItemClickRegionRect!!.top)
}
}
override fun onChildDraw(viewHolder:RecyclerView.ViewHolder, position: Int, dX: Float, dY: Float) {
if (viewHolder is InboxListAdapter.InboxItemHolder) {
if (dX >= resources.displayMetrics.widthPixels) {
if (mSwipeState != SWIPE_STATE_RIGHT) {
mPositionSwiped = position
mSwipeState = SWIPE_STATE_RIGHT
Toast.makeText(context, "SWIPE_STATE_RIGHT", Toast.LENGTH_SHORT).show()
}
} else if (dX <= -resources.displayMetrics.widthPixels) {
if (mSwipeState != SWIPE_STATE_LEFT) {
mSwipeState = SWIPE_STATE_LEFT
Toast.makeText(context, "SWIPE_STATE_LEFT", Toast.LENGTH_SHORT).show()
}
} else if (dX == 0f) {
if (mSwipeState != SWIPE_STATE_MID) {
mSwipeState = SWIPE_STATE_MID
Toast.makeText(context, "SWIPE_STATE_MID", Toast.LENGTH_SHORT).show()
}
}
when (dX > 0) {
true -> {
viewHolder.viewBackGround.setBackgroundColor(ContextCompat.getColor(context!!, R.color.mailSwipeMenu))
viewHolder.viewRightSwipe.visibility = View.VISIBLE
viewHolder.viewLeftSwipe.visibility = View.GONE
}
false -> {
viewHolder.viewBackGround.setBackgroundColor(ContextCompat.getColor(context!!, R.color.mailSwipeDelete))
viewHolder.viewRightSwipe.visibility = View.GONE
viewHolder.viewLeftSwipe.visibility = View.VISIBLE
}
}
}
}
override fun getSwipeDirs(viewHolder: RecyclerView.ViewHolder) {
val position = viewHolder.adapterPosition
if (position != mEditPosition) {
if (mEditPosition != -1 && mFlagSwiped) {
mInboxListAdapter!!.notifyItemChanged(mEditPosition)
mFlagSwiped = false
mEditPosition = position
}
}
}