ChatAppBar.dart

 showFilePicker(FileType fileType) async {
    File file;
    if (fileType == FileType.IMAGE && SharedObjects.prefs.getBool(Constants.configImageCompression))
      file = await ImagePicker.pickImage(
          source: ImageSource.gallery, imageQuality: 70);
    else
      file = await FilePicker.getFile(type: fileType);
    
    if (file == null) return;
    chatBloc.dispatch(SendAttachmentEvent(chat.chatId, file, fileType));
    Navigator.pop(context);
    GradientSnackBar.showMessage(context, 'Sending attachment..');
  }