com.kaichaohulian.baocms.ecdemo.photopicker.utils.MediaStoreHelper.java Source code

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Here is the source code for com.kaichaohulian.baocms.ecdemo.photopicker.utils.MediaStoreHelper.java

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/*
 *  Copyright (c) 2015 The CCP project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a Beijing Speedtong Information Technology Co.,Ltd license
 *  that can be found in the LICENSE file in the root of the web site.
 *
 *   http://www.yuntongxun.com
 *
 *  An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */package com.kaichaohulian.baocms.ecdemo.photopicker.utils;

import android.content.Context;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;

import com.kaichaohulian.baocms.R;
import com.kaichaohulian.baocms.ecdemo.photopicker.model.PhotoDirectory;

import java.util.ArrayList;
import java.util.List;

import static android.provider.BaseColumns._ID;
import static android.provider.MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME;
import static android.provider.MediaStore.Images.ImageColumns.BUCKET_ID;
import static android.provider.MediaStore.MediaColumns.DATA;
import static android.provider.MediaStore.MediaColumns.DATE_ADDED;

/**
 * 
 * @author ?
 * @since 2016-4-6
 * @version 5.0
 */
public class MediaStoreHelper {
    public final static int INDEX_ALL_PHOTOS = 0;

    public static void getPhotoDirs(FragmentActivity activity, Bundle args, PhotosResultCallback resultCallback) {
        activity.getSupportLoaderManager().initLoader(0, args,
                new PhotoDirLoaderCallbacks(activity, resultCallback));
    }

    static class PhotoDirLoaderCallbacks implements LoaderManager.LoaderCallbacks<Cursor> {

        private Context context;
        private PhotosResultCallback resultCallback;

        public PhotoDirLoaderCallbacks(Context context, PhotosResultCallback resultCallback) {
            this.context = context;
            this.resultCallback = resultCallback;
        }

        @Override
        public Loader<Cursor> onCreateLoader(int id, Bundle args) {
            return new PhotoDirectoryLoader(context, false);
        }

        @Override
        public void onLoadFinished(Loader<Cursor> loader, Cursor data) {

            if (data == null)
                return;
            List<PhotoDirectory> directories = new ArrayList<PhotoDirectory>();
            PhotoDirectory photoDirectoryAll = new PhotoDirectory();
            photoDirectoryAll.setName(context.getString(R.string.picker_all_image));
            photoDirectoryAll.setId("ALL");

            while (data.moveToNext()) {

                int imageId = data.getInt(data.getColumnIndexOrThrow(_ID));
                String bucketId = data.getString(data.getColumnIndexOrThrow(BUCKET_ID));
                String name = data.getString(data.getColumnIndexOrThrow(BUCKET_DISPLAY_NAME));
                String path = data.getString(data.getColumnIndexOrThrow(DATA));

                PhotoDirectory photoDirectory = new PhotoDirectory();
                photoDirectory.setId(bucketId);
                photoDirectory.setName(name);

                if (!directories.contains(photoDirectory)) {
                    photoDirectory.setCoverPath(path);
                    photoDirectory.addPhoto(imageId, path);
                    photoDirectory.setDateAdded(data.getLong(data.getColumnIndexOrThrow(DATE_ADDED)));
                    directories.add(photoDirectory);
                } else {
                    directories.get(directories.indexOf(photoDirectory)).addPhoto(imageId, path);
                }

                photoDirectoryAll.addPhoto(imageId, path);
            }
            if (photoDirectoryAll.getPhotoPaths().size() > 0) {
                photoDirectoryAll.setCoverPath(photoDirectoryAll.getPhotoPaths().get(0));
            }
            directories.add(INDEX_ALL_PHOTOS, photoDirectoryAll);
            if (resultCallback != null) {
                resultCallback.onResultCallback(directories);
            }
        }

        @Override
        public void onLoaderReset(Loader<Cursor> loader) {

        }
    }

    public interface PhotosResultCallback {
        void onResultCallback(List<PhotoDirectory> directories);
    }
}