diff options
Diffstat (limited to 'app/src/main/java/fr/gouv/etalab/mastodon/helper/itemtouchhelper/ItemTouchHelperAdapter.java')
-rw-r--r-- | app/src/main/java/fr/gouv/etalab/mastodon/helper/itemtouchhelper/ItemTouchHelperAdapter.java | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/app/src/main/java/fr/gouv/etalab/mastodon/helper/itemtouchhelper/ItemTouchHelperAdapter.java b/app/src/main/java/fr/gouv/etalab/mastodon/helper/itemtouchhelper/ItemTouchHelperAdapter.java new file mode 100644 index 000000000..a386253e8 --- /dev/null +++ b/app/src/main/java/fr/gouv/etalab/mastodon/helper/itemtouchhelper/ItemTouchHelperAdapter.java @@ -0,0 +1,59 @@ +package fr.gouv.etalab.mastodon.helper.itemtouchhelper; + +/* + * Copyright (C) 2015 Paul Burke + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + +import android.support.v7.widget.RecyclerView; +import android.support.v7.widget.helper.ItemTouchHelper; + +/** + * Interface to listen for a move or dismissal event from a {@link ItemTouchHelper.Callback}. + * + * @author Paul Burke (ipaulpro) + */ +public interface ItemTouchHelperAdapter { + + /** + * Called when an item has been dragged far enough to trigger a move. This is called every time + * an item is shifted, and <strong>not</strong> at the end of a "drop" event.<br/> + * <br/> + * Implementations should call {@link RecyclerView.Adapter#notifyItemMoved(int, int)} after + * adjusting the underlying data to reflect this move. + * + * @param fromPosition The start position of the moved item. + * @param toPosition Then resolved position of the moved item. + * @return True if the item was moved to the new adapter position. + * + * @see RecyclerView#getAdapterPositionFor(RecyclerView.ViewHolder) + * @see RecyclerView.ViewHolder#getAdapterPosition() + */ + boolean onItemMove(int fromPosition, int toPosition); + + + /** + * Called when an item has been dismissed by a swipe.<br/> + * <br/> + * Implementations should call {@link RecyclerView.Adapter#notifyItemRemoved(int)} after + * adjusting the underlying data to reflect this removal. + * + * @param position The position of the item dismissed. + * + * @see RecyclerView#getAdapterPositionFor(RecyclerView.ViewHolder) + * @see RecyclerView.ViewHolder#getAdapterPosition() + */ + void onItemDismiss(int position); +}
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