在 flutter 中使用相机 package 没有点击和预览图片

Question

The camera package I am using is: camera: git: url: https://github.com/flutter/plugins.git path: packages/camera/camera ref: cfa709835ab85702ee8a9ed24bbe7a3fe736c3f5

code是：

try {
     final path =
      join((await getTemporaryDirectory()).path, '${DateTime.now()}.png');
      await controller.takePicture(**path**); 
       Navigator.push(
        context,
         MaterialPageRoute(
          builder: (context) => PreviewScreen(
           imgPath: path,
                   )),
                 );

相同的代码在不同的项目中运行良好，但是每当我将其实施到现有的项目中时都会error ：

Too many positional arguments: 0 expected, but 1 found.  Try removing the extra argument.

在代码的第 4 行，粗体文本 *路径

当我从那里删除**路径时，触发 function 后的控制台 output 是：

 console output: I/flutter (13243): Error:Previous capture has not returned yet.
I/flutter (13243): Error message : takePicture was called before the previous capture returned.
I/flutter (13243): Error:Previous capture has not returned yet.
I/flutter (13243): Error message : takePicture was called before the previous capture returned.

请帮忙。 对不起，我的英语不好。

Answer 1

由于版本 0.6.x takePicture 没有参数。 如果您想使用最新的插件版本运行它，请查看当前示例。

请参阅以获取更多信息。