Dart/flutter : iOS app crashes with Firebase ML Vision

Question

我正在创建一个 Flutter 应用程序，它使用相机插件来拍摄图像然后处理它们。我正在使用 Firebase ML Vision 包来处理这些图像，但是当我在 iPhone 上运行该应用程序时，它崩溃了。

Here's an image of the stack trace

Here's an image of when I run "flutter doctor -v"

相关代码:

fetchImageAnnotations(File image) async {
    final FirebaseVisionImage visionImage = 
    FirebaseVisionImage.fromFile(image);
    final BarcodeDetector barcodeDetector = 
    FirebaseVision.instance.barcodeDetector();
    final LabelDetector labelDetector = 
    FirebaseVision.instance
    .labelDetector(LabelDetectorOptions(confidenceThreshold: 0.80));
    final TextDetector textDetector = 
    FirebaseVision.instance.textDetector();

    final List<Barcode> barcodes = await barcodeDetector.detectInImage(visionImage);
    final List<Label> labels = await labelDetector.detectInImage(visionImage);
    final List<TextBlock> blocks = await textDetector.detectInImage(visionImage);
}

如果有人可以提供帮助，将不胜感激。

Answer 1

你检查过iOS权限吗？您需要添加:

<key>NSCameraUsageDescription</key>
<string>Can I use the camera please?</string>
<key>NSPhotoLibraryUsageDescription</key>
<string>Can I use the photos library please?</string>

到 plist