如何停止连续扫描二维码？

Question

**这是我的代码，我想要的是在第一次 callApi() 方法应该调用的扫描之后，但它继续扫描 **

  @Override
public void handleResult(Result result) {

    System.out.print("BAR_CODE  "+ result.getContents());
    System.out.print("BAR_CODEE  "+result.getBarcodeFormat().getName());
    barcode_number = result.getContents();
    productcode.setText(result.getContents());

    //resume Camera
    scanner_bar.resumeCameraPreview(this);

    dialog = new ProgressDialog(getActivity());
    dialog.setCancelable(true);
    dialog.setTitle("Loading");
    dialog.show();

    //callApi
    if(barcode_number != "") {

        callApi(barcode_number);
    }

};

Answer 1

只需用这个替换您的代码

    @Override
public void handleResult(Result result) {

    System.out.print("BAR_CODE  "+ result.getContents());
    System.out.print("BAR_CODEE  "+result.getBarcodeFormat().getName());
    barcode_number = result.getContents();
    productcode.setText(result.getContents());

    //resume Camera
    scanner_bar.resumeCameraPreview(this);

    dialog = new ProgressDialog(getActivity());
    dialog.setCancelable(true);
    dialog.setTitle("Loading");
    dialog.show();

    //callApi
    if(barcode_number != "") {
        scanner_bar.stopCamera(); 
        callApi(barcode_number);
    }

};

如何停止连续扫描二维码？

how to stop continuous scanning of QR code?

java

android

zxing

zbar