adamin.com.dragandswiperecyclerview.RecyclerGridFragment.java Source code

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Here is the source code for adamin.com.dragandswiperecyclerview.RecyclerGridFragment.java

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/*
 * 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.
 */

package adamin.com.dragandswiperecyclerview;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.helper.ItemTouchHelper;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import adamin.com.dragandswiperecyclerview.helper.OnStartDragListener;
import adamin.com.dragandswiperecyclerview.helper.SimpleItemTouchHelperCallback;

/**
 * @author Paul Burke (ipaulpro)
 */
public class RecyclerGridFragment extends Fragment implements OnStartDragListener {

    private ItemTouchHelper mItemTouchHelper;

    public RecyclerGridFragment() {
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return new RecyclerView(container.getContext());
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        final RecyclerListAdapter adapter = new RecyclerListAdapter(getActivity(), this);

        RecyclerView recyclerView = (RecyclerView) view;
        recyclerView.setHasFixedSize(true);
        recyclerView.setAdapter(adapter);

        final int spanCount = getResources().getInteger(R.integer.grid_columns);
        final GridLayoutManager layoutManager = new GridLayoutManager(getActivity(), spanCount);
        recyclerView.setLayoutManager(layoutManager);

        ItemTouchHelper.Callback callback = new SimpleItemTouchHelperCallback(adapter);
        mItemTouchHelper = new ItemTouchHelper(callback);
        mItemTouchHelper.attachToRecyclerView(recyclerView);
    }

    @Override
    public void onStartDrag(RecyclerView.ViewHolder viewHolder) {
        mItemTouchHelper.startDrag(viewHolder);
    }
}