Getting an image from Gallery on from the Picasa//Google + synced folders doesn't work

Question

I am trying to get an image from the gallery app from one of the folders from the Google+ synced photos. After selecting the image, the Uri is being passed back correctly. B

Answer 1

Based on @drindt answer, below codes give downloaded temporary File path from Google Photo cloud-synced-but-not-in-device file.

@SuppressLint("NewApi")
public static String getFilePath(final Context context, final Uri uri) {

    // Google photo uri example
    // content://com.google.android.apps.photos.contentprovider/0/1/mediakey%3A%2FAF1QipMObgoK_wDY66gu0QkMAi/ORIGINAL/NONE/114919

    if ("content".equalsIgnoreCase(uri.getScheme())) {
        String result = getDataColumn(context, uri, null, null); // 
        if (TextUtils.isEmpty(result))
            if (uri.getAuthority().contains("com.google.android")) {
                try {
                    File localFile = createImageFile(context, null);
                    FileInputStream remoteFile = getSourceStream(context, uri);
                    if(copyToFile(remoteFile, localFile))
                        result = localFile.getAbsolutePath();
                    remoteFile.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        return result;
    }
    // File
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
}

/**
 * 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.
 */
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;
}


/**
 * Copy data from a source stream to destFile.
 * Return true if succeed, return false if failed.
 */
private static boolean copyToFile(InputStream inputStream, File destFile) {
    if (inputStream == null || destFile == null) return false;
    try {
        OutputStream out = new FileOutputStream(destFile);
        try {
            byte[] buffer = new byte[4096];
            int bytesRead;
            while ((bytesRead = inputStream.read(buffer)) >= 0) {
                out.write(buffer, 0, bytesRead);
            }
        } finally {
            out.close();
        }
        return true;
    } catch (IOException e) {
        return false;
    }
}

public static String getTimestamp() {
    try {
        return new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.ROOT).format(new Date());
    } catch (RuntimeException e) {
        return new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
    }
}

public static File createImageFile(Context context, String imageFileName) throws IOException {
    if (TextUtils.isEmpty(imageFileName))
        imageFileName = getTimestamp(); // make random filename if you want.

    final File root;
    imageFileName = imageFileName;
    root = context.getExternalCacheDir();

    if (root != null && !root.exists())
        root.mkdirs();
    return new File(root, imageFileName);
}


public static FileInputStream getSourceStream(Context context, Uri u) throws FileNotFoundException {
    FileInputStream out = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        ParcelFileDescriptor parcelFileDescriptor =
                context.getContentResolver().openFileDescriptor(u, "r");
        FileDescriptor fileDescriptor = null;
        if (parcelFileDescriptor != null) {
            fileDescriptor = parcelFileDescriptor.getFileDescriptor();
            out = new FileInputStream(fileDescriptor);
        }
    } else {
        out = (FileInputStream) context.getContentResolver().openInputStream(u);
    }
    return out;
}