Java 如何在刷卡后在RecyclerView中刷回项目
在RecyclerView中刷过一个项目后,我希望它返回,而不需要手动刷回 这是RecyclerView中的一个swipeable项目。Java 如何在刷卡后在RecyclerView中刷回项目,java,android,kotlin,android-recyclerview,swipe,Java,Android,Kotlin,Android Recyclerview,Swipe,在RecyclerView中刷过一个项目后,我希望它返回,而不需要手动刷回 这是RecyclerView中的一个swipeable项目。 回收视图中的项目 刷卡 在刷卡事件之后,我希望该项目返回,就好像它被刷卡的距离不够远一样,但事件必须发生。我该怎么做 刷卡后 这是我的SwipeHelper,它使背景保持静态: abstract class ProfileSwipeHelper : ItemTouchHelper.SimpleCallback(0, ItemTouchHelper
回收视图中的项目 刷卡 在刷卡事件之后,我希望该项目返回,就好像它被刷卡的距离不够远一样,但事件必须发生。我该怎么做 刷卡后 这是我的SwipeHelper,它使背景保持静态:
abstract class ProfileSwipeHelper : ItemTouchHelper.SimpleCallback(0,
ItemTouchHelper.LEFT
) {
override fun onMove(
recyclerView: RecyclerView,
viewHolder: RecyclerView.ViewHolder,
target: RecyclerView.ViewHolder
): Boolean {
return true
}
override fun onSelectedChanged(viewHolder: RecyclerView.ViewHolder?, actionState: Int) {
if (viewHolder != null) {
ItemTouchHelper.Callback.getDefaultUIUtil().onSelected((viewHolder as ProfilesAdapter.ViewHolder).foreground)
}
}
override fun onChildDraw(
c: Canvas,
recyclerView: RecyclerView,
viewHolder: RecyclerView.ViewHolder,
dX: Float,
dY: Float,
actionState: Int,
isCurrentlyActive: Boolean
) {
getDefaultUIUtil().onDraw(c, recyclerView,
(viewHolder as ProfilesAdapter.ViewHolder).foreground, dX, dY,
actionState, isCurrentlyActive)
}
override fun onChildDrawOver(
c: Canvas,
recyclerView: RecyclerView,
viewHolder: RecyclerView.ViewHolder?,
dX: Float,
dY: Float,
actionState: Int,
isCurrentlyActive: Boolean
) {
getDefaultUIUtil().onDrawOver(
c, recyclerView,
(viewHolder as ProfilesAdapter.ViewHolder).foreground, dX, dY,
actionState, isCurrentlyActive)
}
override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
getDefaultUIUtil().clearView((viewHolder as ProfilesAdapter.ViewHolder).foreground)
}
}
以下是主要活动中的活动,仅包括祝酒词:
//Main Activity
val context : Context = this
val deleteSwipeHandler1 = object : ProfileSwipeHelper() {
override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
Toast.makeText(context, "swiped", Toast.LENGTH_SHORT).show()
}
}
ItemTouchHelper(deleteSwipeHandler1).attachToRecyclerView(rv_profiles)