// NOTE: This method is called from RecyclerViewDragDropManager
/*package*/ void onDragItemFinished(RecyclerView.ViewHolder holder, boolean result) {
if (LOCAL_LOGD) {
Log.d(TAG, "onDragItemFinished(holder = " + holder + ", result = " + result + ")");
}
if (holder != null && holder != mDraggingItem) {
throw new IllegalStateException(
"onDragItemFinished() - may be a bug (mDraggingItem != holder)");
}
if (DEBUG_BYPASS_MOVE_OPERATION_MODE) {
return;
}
if (result && (mDraggingItemCurrentPosition != mDraggingItemInitialPosition)) {
// apply to wrapped adapter
DraggableItemAdapter adapter =
WrapperAdapterUtils.findWrappedAdapter(getWrappedAdapter(), DraggableItemAdapter.class);
adapter.onMoveItem(mDraggingItemInitialPosition, mDraggingItemCurrentPosition);
}
mDraggingItemInitialPosition = RecyclerView.NO_POSITION;
mDraggingItemCurrentPosition = RecyclerView.NO_POSITION;
mDraggableRange = null;
mDraggingItemId = RecyclerView.NO_ID;
mDraggingItem = null;
notifyDataSetChanged();
}
/*package*/
@SuppressWarnings("unchecked")
ItemDraggableRange getItemDraggableRange(RecyclerView.ViewHolder holder, int position) {
if (LOCAL_LOGV) {
Log.v(TAG, "getItemDraggableRange(holder = " + holder + ", position = " + position + ")");
}
return mDraggableItemAdapter.onGetItemDraggableRange(holder, position);
}
/*package*/
@SuppressWarnings("unchecked")
boolean canStartDrag(RecyclerView.ViewHolder holder, int position, int x, int y) {
if (LOCAL_LOGV) {
Log.v(
TAG,
"canStartDrag(holder = "
+ holder
+ ", position = "
+ position
+ ", x = "
+ x
+ ", y = "
+ y
+ ")");
}
return mDraggableItemAdapter.onCheckCanStartDrag(holder, position, x, y);
}
// NOTE: This method is called from RecyclerViewDragDropManager
/*package*/ void moveItem(int fromPosition, int toPosition) {
if (LOCAL_LOGD) {
Log.d(
TAG, "onMoveItem(fromPosition = " + fromPosition + ", toPosition = " + toPosition + ")");
}
if (DEBUG_BYPASS_MOVE_OPERATION_MODE) {
mDraggableItemAdapter.onMoveItem(fromPosition, toPosition);
return;
}
final int origFromPosition =
convertToOriginalPosition(
fromPosition, mDraggingItemInitialPosition, mDraggingItemCurrentPosition);
if (origFromPosition != mDraggingItemInitialPosition) {
throw new IllegalStateException(
"onMoveItem() - may be a bug or has duplicate IDs --- "
+ "mDraggingItemInitialPosition = "
+ mDraggingItemInitialPosition
+ ", "
+ "mDraggingItemCurrentPosition = "
+ mDraggingItemCurrentPosition
+ ", "
+ "origFromPosition = "
+ origFromPosition
+ ", "
+ "fromPosition = "
+ fromPosition
+ ", "
+ "toPosition = "
+ toPosition);
}
mDraggingItemCurrentPosition = toPosition;
// NOTE:
// Don't move items in wrapped adapter here.
// notify to observers
notifyItemMoved(fromPosition, toPosition);
}
