用户取消了 MultiImagePicker 上的选择

Question

我有 flutter 项目，我想从相机或画廊拍摄图像。现在，我使用 multi_image_picker: ^4.8.1 。但是，在执行代码后，我收到错误 'The User has Cancelled the selection' 并弹出 'Permission denied'.

this is error what I get on device

这是我在相机功能中的代码

                    child:Column(
                       mainAxisAlignment:MainAxisAlignment.center,
                        children: <Widget>[
                          Center(child: Text('Error: $_error')),
                          ElevatedButton(
                            child: Icon(Icons.camera_alt),
                            onPressed: () async {
                              loadAssets();
                            }),
                            Expanded(
                              child: buildGridView(),
                            ),
                        ],
                      ),

这是我的职能

Future<void> loadAssets() async {
List<Asset> resultList = <Asset>[];
String error = 'No Error Detected';

try {
  if(await checkAndRequestCameraPermissions()) {
    resultList = await MultiImagePicker.pickImages(
      maxImages: 300,
      enableCamera: true,
      selectedAssets: images,
      cupertinoOptions: CupertinoOptions(takePhotoIcon: "chat"),
      materialOptions: MaterialOptions(
        actionBarColor: "#abcdef",
        actionBarTitle: "Example App",
        allViewTitle: "All Photos",
        useDetailsView: false,
        selectCircleStrokeColor: "#000000",
      ),
    );
  }
} on Exception catch (e) {
  error = e.toString();
}

if (!mounted) return;

setState(() {
  images = resultList;
  _error = error;
});

}

这是我的权限功能

Future<bool> checkAndRequestCameraPermissions() async {
// PermissionStatus permission = await Permission.camera.status;
if (await Permission.camera.request().isGranted) {
  Map<Permission, PermissionStatus> statuses = await [
    Permission.camera,
  ].request();
  return statuses[Permission.camera] == PermissionStatus.granted;
} else {
  return true;
}
}

这是查看图片的功能

Widget buildGridView() {
return GridView.count(
  crossAxisCount: 3,
  children: List.generate(images.length, (index) {
    Asset asset = images[index];
    return AssetThumb(
      asset: asset,
      width: 300,
      height: 300,
    );
  }),
);}

这是我在日志中得到的错误

E/RecyclerView( 6058): No adapter attached; skipping layout
D/EGL_emulation( 6058): eglMakeCurrent: 0xafa856c0: ver 2 0 (tinfo 0x91312880)
D/EGL_emulation( 6058): eglMakeCurrent: 0xafa856c0: ver 2 0 (tinfo 0x91312880)
D/EGL_emulation( 6058): eglMakeCurrent: 0xa23cda20: ver 2 0 (tinfo 0x913126f0)
D/EGL_emulation( 6058): eglCreateContext: 0x7a964a80: maj 2 min 0 rcv 2
D/EGL_emulation( 6058): eglMakeCurrent: 0x7a964a80: ver 2 0 (tinfo 0x913126f0)
D/EGL_emulation( 6058): eglMakeCurrent: 0xa23cda20: ver 2 0 (tinfo 0x913126f0)
D/EGL_emulation( 6058): eglMakeCurrent: 0xa23cda20: ver 2 0 (tinfo 0x913126f0)
D/EGL_emulation( 6058): eglMakeCurrent: 0xafa856c0: ver 2 0 (tinfo 0x91312880)

我已经在搜索了。并且已经使用相机权限。但是，一如既往，我得到了同样的错误。有人认为我的代码有问题吗？

Answer 1

您使用的软件包似乎已停产。我建议使用 image_pickers.

https://pub.dev/packages/image_pickers

用户取消了 MultiImagePicker 上的选择

The User has Cancelled The Selection on MultiImagePicker

image

flutter