FilePicker Kitkat

KitkatFilesHandler.java

package com.zoomimob_faculty.utils;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio;

public class KitkatFilesHandler {

    private static Uri fileUri;

    public static void initWithUri(Uri fileUri) {
        KitkatFilesHandler.fileUri = fileUri;
    }

    public static String getFilePath(Context context) {
        if (fileUri == null) {
            throw new IllegalStateException(
                    "You have not initialized KitkatFilesHanlder properly, call initWithUri method to do that");
        }
        String path = "";
        if (isExternalStorageDocument(fileUri)) {
            final String docId = DocumentsContract.getDocumentId(fileUri);
            final String[] split = docId.split(":");
            final String storageType = split[0];

            if ("primary".equalsIgnoreCase(storageType)) {
                path = Environment.getExternalStorageDirectory() + "/" + split[1];
            }

            // TODO handle non-primary volumes
        }
        // DownloadsProvider
        else if (isDownloadsDocument(fileUri)) {

            final String id = DocumentsContract.getDocumentId(fileUri);
            final Uri contentUri = ContentUris.withAppendedId(
                    Uri.parse("content://downloads/public_downloads"),
                    Long.valueOf(id));

            path = getDataColumn(context, contentUri, null, null);
        }
        // MediaProvider
        else if (isMediaDocument(fileUri)) {
            final String docId = DocumentsContract.getDocumentId(fileUri);
            final String[] split = docId.split(":");
            final String mediaType = split[0];

            Uri contentUri = null;
            if ("image".equals(mediaType)) {
                contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            } else if ("video".equals(mediaType)) {
                contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
            } else if ("audio".equals(mediaType)) {
                contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            }

            final String selection = "_id=?";
            final String[] selectionArgs = new String[] {
                    split[1]
            };

            path = getDataColumn(context, contentUri, selection,
                    selectionArgs);
        }
        // MEDIA URIS
        else if (isMediaUri(fileUri)) {
            path = getDataColumn(context, fileUri, null,
                    null);
        }
        return path;
    }

    public String getRealPathFromURI(ContentResolver contentResolver, Uri contentUri) {
        Cursor cursor = null;
        try {
            String[] proj = {
                    Audio.Media.DATA
            };
            cursor = contentResolver.query(contentUri, proj, null, null, null);
            int column_index = 0;
            if (cursor != null) {
                column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                return cursor.getString(column_index);
            } else {
                return null;
            }

        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }

    /**
     * @return True if Uri is a MediaStore Uri.
     * @author paulburke
     */
    public static boolean isMediaUri(Uri uri) {
        return "media".equalsIgnoreCase(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    public static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    public static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    public static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     * 
     * @param context The context.
     * @param uri The Uri to query.
     * @param selection (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     */
    public static String getDataColumn(Context context, Uri uri, String selection,
            String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {
                column
        };

        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                final int column_index = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(column_index);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

}

Thank you