android - zxing扫描二维码后相机卡住

Question

我使用结果处理程序实现了二维码扫描器。它扫描得很好。但是，在第一次扫描完成后，相机卡住了。如何实现二维码扫码让摄像头持续扫码不卡顿？

我的代码是这样的:

public class SimpleScannerFragment extends Fragment implements ZXingScannerView.ResultHandler {


private ZXingScannerView mScannerView;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View v = inflater.inflate(R.layout.scannerview, null);
    mScannerView = (ZXingScannerView) v.findViewById(R.id.scanner_view);
    return v;
}

@Override
public void onResume() {

    super.onResume();
    mScannerView.startCamera();
    mScannerView.setResultHandler(this);

}


@Override
public void handleResult(Result rawResult) {
    ParsedResult parserdResult = ResultParser.parseResult(rawResult);


     Toast.makeText(getActivity(), "Contents = " + rawResult.getText() + ", Format = " + rawResult.getBarcodeFormat().toString(), Toast.LENGTH_SHORT).show();
   }

@Override
public void onPause() {
    super.onPause();
    mScannerView.stopCamera();

   }
}

Answer 1

根据手册(https://github.com/dm77/barcodescanner)只需在处理程序中恢复您的摄像头:

  @Override
  public void handleResult(Result rawResult) {
     ParsedResult parserdResult =   ResultParser.parseResult(rawResult);
     Toast.makeText(getActivity(), "Contents = " + rawResult.getText() + ", Format = " + rawResult.getBarcodeFormat().toString(), Toast.LENGTH_SHORT).show();
     mScannerView.resumeCameraPreview(this);
}