Create a common method for updating the title of a download from the filename.

package android.provider;

import android.net.Uri;

import android.content.ContentUris;

import android.content.ContentValues;

import android.content.Context;

import java.io.File;

/**

 * The Download Manager

         */

        public static final int VISIBILITY_HIDDEN = 2;

        /**

         * Using a file name, create a title for a download.  Then store it in

         * the database and return it.

         *

         * @param context Context for reaching the {@link ContentResolver} so

         *      the database can be updated with the new title.

         * @param filename Full path to the file.  Used to generate a title.

         * @param id Id of the download, so the new title can be stored in the

         *      database

         * @return String Newly created title.

         * @hide

         */

        public static String createTitleFromFilename(Context context,

                String filename, long id) {

            if (filename == null) return null;

            String title = new File(filename).getName();

            ContentValues values = new ContentValues();

            values.put(COLUMN_TITLE, title);

            context.getContentResolver().update(ContentUris.withAppendedId(

                    CONTENT_URI, id), values, null, null);

            return title;

        }

    }

}