org.catnut.plugin.fantasy.FantasyFallFragment.java Source code

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Here is the source code for org.catnut.plugin.fantasy.FantasyFallFragment.java

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/*
 * The MIT License (MIT)
 * Copyright (c) 2014 longkai
 * The software shall be used for good, not evil.
 */
package org.catnut.plugin.fantasy;

import android.app.Fragment;
import android.app.LoaderManager;
import android.content.Intent;
import android.content.Loader;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.BaseColumns;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.Spinner;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.etsy.android.grid.StaggeredGridView;
import org.catnut.R;
import org.catnut.api._500pxAPI;
import org.catnut.core.CatnutApp;
import org.catnut.core.CatnutProvider;
import org.catnut.core.CatnutRequest;
import org.catnut.ui.HelloActivity;
import org.catnut.util.CatnutUtils;
import org.catnut.util.ColorSwicher;
import org.catnut.util.Constants;
import org.json.JSONObject;

/**
 * 500px ?
 *
 * @author longkai
 */
public class FantasyFallFragment extends Fragment implements LoaderManager.LoaderCallbacks<Cursor>,
        AbsListView.OnScrollListener, AdapterView.OnItemSelectedListener, SwipeRefreshLayout.OnRefreshListener {

    public static final String TAG = FantasyFallFragment.class.getSimpleName();

    private static final String[] PROJECTION = new String[] { BaseColumns._ID, Photo.image_url, Photo.name,
            Photo.width, Photo.height };

    protected SwipeRefreshLayout mSwipeRefreshLayout;
    private Spinner mSwitcher;

    private StaggeredGridView mFall;
    private FantasyFallAdapter mAdapter;

    private String mChoice = Photo.FEATURE_POPULAR;

    public static FantasyFallFragment getFragment() {
        return new FantasyFallFragment();
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mAdapter = new FantasyFallAdapter(getActivity());
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        mSwitcher = (Spinner) inflater.inflate(R.layout.fantasy_fall_spinner, null);
        return inflater.inflate(R.layout.fantasy_fall, container, false);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        mSwitcher.setOnItemSelectedListener(this);
        mFall = (StaggeredGridView) view.findViewById(R.id.fall);
        mFall.addHeaderView(mSwitcher);
        mSwipeRefreshLayout = (SwipeRefreshLayout) view.findViewById(R.id.refresh);
        ColorSwicher.injectColor(mSwipeRefreshLayout);
        mSwipeRefreshLayout.setOnRefreshListener(this);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        mFall.setAdapter(mAdapter);
        getLoaderManager().initLoader(0, null, this);
    }

    @Override
    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        return CatnutUtils.getCursorLoader(getActivity(), CatnutProvider.parse(Photo.MULTIPLE), PROJECTION,
                Photo.feature + "=" + CatnutUtils.quote(mChoice), null, Photo.TABLE, null, Constants.RANDOM_ORDER,
                null);
    }

    @Override
    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        mAdapter.swapCursor(data);
        if (!mSwipeRefreshLayout.isRefreshing()) {
            if (mAdapter.getCount() == 0 || Photo.shouldRefresh()) { // ???~
                mSwipeRefreshLayout.setRefreshing(true);
                onRefresh();
            }
        }
    }

    @Override
    public void onLoaderReset(Loader<Cursor> loader) {
        mAdapter.swapCursor(null);
    }

    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {
        if (scrollState == SCROLL_STATE_IDLE && mFall.getLastVisiblePosition() == mAdapter.getCount()) {
            Log.d(TAG, "load more 500px...");
        }
    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

    }

    @Override
    public void onRefresh() {
        CatnutApp.getTingtingApp().getRequestQueue()
                .add(new CatnutRequest(getActivity(), _500pxAPI.photos(mChoice, (int) (Math.random() * 400)),
                        new Photo._500pxProcessor(mChoice), new Response.Listener<JSONObject>() {
                            @Override
                            public void onResponse(JSONObject response) {
                                mSwipeRefreshLayout.setRefreshing(false);
                            }
                        }, new Response.ErrorListener() {
                            @Override
                            public void onErrorResponse(VolleyError error) {
                                mSwipeRefreshLayout.setRefreshing(false);
                            }
                        }));
    }

    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        String last = mChoice;
        switch (position) {
        default:
        case 0:
            mChoice = Photo.FEATURE_POPULAR;
            break;
        case 1:
            mChoice = Photo.FEATURE_UPCOMING;
            break;
        case 2:
            mChoice = Photo.FEATURE_FRESH_TODAY;
            break;
        case 3:
            mChoice = Photo.FEATURE_EDITORS;
            break;
        case 4:
            mChoice = Photo.FEATURE_FRESH_YESTERDAY;
            break;
        case 5:
            mChoice = Photo.FEATURE_FRESH_WEEK;
            break;
        case 6: // switch pager mode
            startActivity(
                    new Intent(getActivity(), HelloActivity.class).putExtra(HelloActivity.TAG, HelloActivity.TAG));
            mSwitcher.setSelection(0);
            return;
        }
        if (!mChoice.equals(last)) {
            getLoaderManager().restartLoader(0, null, this);
        }
    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {
        // no-op
    }
}