在Android Studio中使用Google Vision进行条形码扫描,可以按照以下步骤进行:
implementation 'com.google.android.gms:play-services-vision:19.1.0'
public class YourFragment extends Fragment {
private Button scanButton;
private ImageView barcodeImageView;
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.your_fragment_layout, container, false);
scanButton = view.findViewById(R.id.scanButton);
barcodeImageView = view.findViewById(R.id.barcodeImageView);
scanButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startBarcodeScanning();
}
});
return view;
}
private void startBarcodeScanning() {
// 在这里实现条形码扫描逻辑
}
}
private void startBarcodeScanning() {
BarcodeDetector detector = new BarcodeDetector.Builder(getContext())
.setBarcodeFormats(Barcode.ALL_FORMATS)
.build();
if (!detector.isOperational()) {
Toast.makeText(getContext(), "Could not set up the barcode detector", Toast.LENGTH_SHORT).show();
return;
}
Frame frame = new Frame.Builder().setBitmap(bitmap).build();
SparseArray barcodes = detector.detect(frame);
if (barcodes.size() > 0) {
Barcode barcode = barcodes.valueAt(0);
barcodeImageView.setImageBitmap(bitmap);
Toast.makeText(getContext(), "Barcode: " + barcode.rawValue, Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getContext(), "No barcode found", Toast.LENGTH_SHORT).show();
}
}
注意:在上述代码中,需要将bitmap替换为你要进行扫描的图片的Bitmap实例。
以上就是使用Google Vision进行条形码扫描的解决方法,希望对你有帮助!
上一篇:Android Studio中的Flutter项目中颜色工具提示未显示
下一篇:Android Studio中的Fragment RoomListFragment未附加到Activity(在导航抽屉中启动新的Activity)