RealFilePathUtil.java

package com.technophilegeek.myapplication;

import android.annotation.SuppressLint;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;
import android.support.annotation.RequiresApi;
import android.text.TextUtils;

/**
 * Created by rjt on 28/11/18.
 */

public class RealFilePathUtil {
  @SuppressLint("NewApi")
        public static String getPath(final Context context, final Uri uri) {
            //check for KITKAT or above
            final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

            // DocumentProvider
            if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
                // ExternalStorageProvider
                if (isExternalStorageDocument(uri)) {
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];

                    if ("primary".equalsIgnoreCase(type)) {
                        return Environment.getExternalStorageDirectory() + "/" + split[1];
                    }
                }
                // DownloadsProvider
                else if (isDownloadsDocument(uri)) {
                    return getDownloadFilePath(context, uri);
                }
                // MediaProvider
                else if (isMediaDocument(uri)) {
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];

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

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

                    return getDataColumn(context, contentUri, selection, selectionArgs);
                }
            }

            // MediaStore (and general)
            else if ("content".equalsIgnoreCase(uri.getScheme())) {
                // Return the remote address
                if (isGooglePhotosUri(uri))
                    return uri.getLastPathSegment();

                return getDataColumn(context, uri, null, null);
            }
            // File
            else if ("file".equalsIgnoreCase(uri.getScheme())) {
                return uri.getPath();
            }

            return null;
        }

        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 index = cursor.getColumnIndexOrThrow(column);
                    return cursor.getString(index);
                }
            } finally {
                if (cursor != null)
                    cursor.close();
            }
            return null;
        }

        @RequiresApi(api = Build.VERSION_CODES.KITKAT)
        public static String getDownloadFilePath(Context context, Uri uri){
            Cursor cursor = null;
            final String[] projection = {
                    MediaStore.MediaColumns.DISPLAY_NAME
            };
            try {
                cursor = context.getContentResolver().query(uri, projection, null, null, null);
                if (cursor != null && cursor.moveToFirst()) {
                    String fileName=cursor.getString(0);
                    String path =Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName;
                    if (!TextUtils.isEmpty(path)){
                        return path;
                    }
                }
            } finally {
                cursor.close();
            }
            String id = DocumentsContract.getDocumentId(uri);
            if (id.startsWith("raw:")) {
                return id.replaceFirst("raw:", "");
            }
            Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads"), java.lang.Long.valueOf(id));

            return getDataColumn(context, contentUri, null, null);
        }


        public static boolean isExternalStorageDocument(Uri uri) {
            return "com.android.externalstorage.documents".equals(uri.getAuthority());
        }

        public static boolean isDownloadsDocument(Uri uri) {
            return "com.android.providers.downloads.documents".equals(uri.getAuthority());
        }

        public static boolean isMediaDocument(Uri uri) {
            return "com.android.providers.media.documents".equals(uri.getAuthority());
        }

        public static boolean isGooglePhotosUri(Uri uri) {
            return "com.google.android.apps.photos.content".equals(uri.getAuthority());
        }
}