我正在使用camerawesome插件Flutter我想添加我自己的自定义按钮拍照不是默认的。我能够隐藏所有的控制，现在我需要知道如何从一个按钮，标签或按下拍照
下面是我的代码

SizedBox(
            width: screenWidth,
            height: screenHeight,
            child: CameraAwesomeBuilder.custom(
              builder: (cameraState, previewSize, previewRect) {
                return cameraState.when(
                    onPreparingCamera: (state) =>
                        const Center(child: CircularProgressIndicator()),
                    onPhotoMode: (state) => TakePhotoUI(state));
                //onPhotoMode: (photoCameraState) => photoCameraState.takePhoto());
              },
              saveConfig: SaveConfig.photo(
                pathBuilder: () => path(CaptureMode.photo),
              ),
            ),
          ),