android - Working with MediaStore to share image from buffer and obtain the uri real path

getRealPathFromImageURI.java

public static String getRealPathFromImageURI(Context context, Uri contentUri) {
    Cursor cursor = null;
    try {
        String[] proj = { MediaStore.Images.Media.DATA };
        cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

shareImageFromBuffer.java

public static void shareImage(Context context, byte[] buffer, String mimeType, String subject, String chooserTitle) {
    ContentValues values = new ContentValues(1);
    values.put(MediaStore.Images.Media.MIME_TYPE, mimeType);
    Uri uri = context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
    OutputStream os = context.getContentResolver().openOutputStream(uri);
    os.write(buffer);
    
    Intent sharingIntent = new Intent(Intent.ACTION_SEND);
    sharingIntent.setType(mimeType);
    sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, subject);
    sharingIntent.putExtra(Intent.EXTRA_STREAM, uri) ;
    context.startActivity(Intent.createChooser(sharingIntent, chooserTitle));
}