ImageUploadExample.java

    public static String getPath(Context context, Uri uri) {
        final boolean needToCheckUri = Build.VERSION.SDK_INT >= 19;
        String selection = null;
        String[] selectionArgs = null;
        // Uri is different in versions after KITKAT (Android 4.4), we need to
        // deal with different Uris.
        if (needToCheckUri && DocumentsContract.isDocumentUri(context.getApplicationContext(), uri)) {
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                return Environment.getExternalStorageDirectory() + "/" + split[1];
            } else if (isDownloadsDocument(uri)) {
                final String id = DocumentsContract.getDocumentId(uri);
                uri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
            } else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];
                if ("image".equals(type)) {
                    uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }
                selection = "_id=?";
                selectionArgs = new String[]{ split[1] };
            }
        }
        if ("content".equalsIgnoreCase(uri.getScheme())) {
            if (isGoogleOldPhotosUri(uri)) {
                return uri.getLastPathSegment();
            } else if (isGoogleNewPhotosUri(uri) || isPicasaPhotoUri(uri)) {
                Uri returnUri = getImageUrlWithAuthority(context, uri);
                if (returnUri!=null) return returnUri.getPath();
            }
            String[] projection = { MediaStore.Images.Media.DATA };
            try (Cursor cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null)) {
                if (cursor != null) {
                    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                    if (cursor.moveToFirst()) {
                        return cursor.getString(column_index);
                    }
                }
            } catch (IllegalArgumentException e) {
                Timber.e(e);
            }
        } else if ("file".equalsIgnoreCase(uri.getScheme())) {
            Uri returnUri = getImageUrlWithAuthority(context, uri);
            if (returnUri!=null) return returnUri.getPath();
        }
        return null;
    }

    private static Uri getImageUrlWithAuthority(Context context, Uri uri) {
        if (uri.getAuthority() != null) {
            Bitmap b = decodeSampledBitmapFromUri(uri, context);
            if (b!=null) return writeToTempImageAndGetPathUri(context, b);
        }
        return null;
    }

    public static Uri copyContentToTempFile(Uri contentUri, Context context) throws NullPointerException {
        InputStream inputStream = null;
        OutputStream outputStream = null;
        File outputFile = new File(context.getCacheDir(), UUID.randomUUID().toString() + "-temp.jpg");

        try {
            inputStream = context.getContentResolver().openInputStream(contentUri);
            outputStream = new FileOutputStream(outputFile);
            if (inputStream == null) {
                throw new NullPointerException("InputStream for given input Uri is null");
            }

            byte buffer[] = new byte[1024];
            int length;
            while ((length = inputStream.read(buffer)) > 0) {
                outputStream.write(buffer, 0, length);
            }

            return Uri.fromFile(outputFile);
        } catch (FileNotFoundException e) {
            return contentUri;
        } catch (IOException e) {
            return contentUri;
        } finally {
            try {
                if (outputStream != null) outputStream.close();
                if (inputStream != null) inputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    private static Uri writeToTempImageAndGetPathUri(Context inContext, Bitmap inImage) {
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        inImage.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
        String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
        return Uri.parse(path);
    }


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

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is the old Google Photos.
     */
    private static boolean isGoogleOldPhotosUri(Uri uri) {
        return "com.google.android.apps.photos.content".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is the new Google Photos.
     */
    private static boolean isGoogleNewPhotosUri(Uri uri) {
        return "com.google.android.apps.photos.contentprovider".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is Picasa.
     */
    private static boolean isPicasaPhotoUri(Uri uri) {

        return uri != null
                && !TextUtils.isEmpty(uri.getAuthority())
                && (uri.getAuthority().startsWith("com.android.gallery3d")
                || uri.getAuthority().startsWith("com.google.android.gallery3d"));
    }