me.selinali.tribbble.ui.archive.ArchiveFragment.java Source code

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Here is the source code for me.selinali.tribbble.ui.archive.ArchiveFragment.java

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/*
 * Copyright 2016 Selina Li
 *
 * 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 me.selinali.tribbble.ui.archive;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;

import java.util.List;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;
import me.selinali.tribbble.R;
import me.selinali.tribbble.data.ArchiveManager;
import me.selinali.tribbble.model.Shot;
import me.selinali.tribbble.ui.MainActivity;
import me.selinali.tribbble.ui.archive.ArchiveAdapter.ArchiveItemListener;
import me.selinali.tribbble.ui.common.Bindable;
import me.selinali.tribbble.ui.shot.ShotActivity;
import me.selinali.tribbble.utils.ViewUtils;

public class ArchiveFragment extends Fragment implements Bindable<List<Shot>> {

    public ArchiveFragment() {
    }

    public static Fragment newInstance() {
        return new ArchiveFragment();
    }

    @BindView(R.id.recycler_view)
    RecyclerView mRecyclerView;

    private Unbinder mUnbinder;
    private ArchiveAdapter mAdapter;

    private ArchiveItemListener mItemListener = new ArchiveItemListener() {
        @Override
        public void onClick(Shot shot, ImageView imageView) {
            Intent intent = ShotActivity.launchIntentFor(shot, getContext());
            startActivity(intent);
        }

        @Override
        public void onSwipe(Shot shot) {
            ArchiveManager.instance().unarchive(shot);
            ArchiveManager.instance().discard(shot);
        }
    };

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_archive, container, false);
        mUnbinder = ButterKnife.bind(this, view);
        setupPadding();

        mRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
            private int previousDy;

            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                if (Math.signum(previousDy) != Math.signum(dy) && dy != 0) {
                    ((MainActivity) getActivity()).showBottomBar(dy < 0);
                }
                previousDy = dy;
            }
        });
        bind(ArchiveManager.instance().getArchivedShots());
        return view;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        mUnbinder.unbind();
    }

    @Override
    public void bind(List<Shot> shots) {
        mRecyclerView.setAdapter(mAdapter = new ArchiveAdapter(shots, mRecyclerView, mItemListener));
        GridLayoutManager layoutManager = new GridLayoutManager(getContext(), 2);
        layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
            @Override
            public int getSpanSize(int position) {
                return mAdapter.getItemViewType(position) == ArchiveAdapter.TYPE_SHOT ? 1 : 2;
            }
        });
        mRecyclerView.setLayoutManager(layoutManager);
    }

    public void insertFirst(Shot shot) {
        if (mAdapter != null) {
            mAdapter.insert(shot, 0);
            mRecyclerView.scrollToPosition(0);
        }
    }

    private void setupPadding() {
        int statusBarHeight = ViewUtils.getStatusBarHeight();
        int navigationBarHeight = ViewUtils.getNavigationBarHeight();
        mRecyclerView.setPadding(0, statusBarHeight, 0, navigationBarHeight);
    }
}