如何一直显示条码扫描画面？

Question

如何在android.

中一直显示条码扫描画面

IntentIntegrator integrator = new IntentIntegrator(activity);

Answer 1

首先您需要将 FrameLayout 添加到您的 layout.xml 作为 barcodeScannet 的容器：

<FrameLayout
        android:id="@+id/barcode_scanner"
        android:layout_width="match_parent"
        android:layout_height="350dp" />

之后您需要在 activity 或片段

中实施 ZXingScannerView.ResultHandler

那么您需要将扫描仪添加到此视图

private ZXingScannerView mScannerView;

ViewGroup v = (ViewGroup) mainView.findViewById(R.id.barcode_scanner);
mScannerView = new ZXingScannerView(getActivity());
    v.addView(mScannerView);

您还需要覆盖 onResume 和 onPause 才能开始停止相机：

@Override
public void onResume() {
    super.onResume();
    mScannerView.setResultHandler(this); // Register ourselves as a handler for scan results.
// aslso check for camera permission here too
}

@Override
public void onPause() {
    mScannerView.stopCamera();           // Stop camera on pause
    super.onPause();
}

然后 :

@Override
public void handleResult(Result rawResult) {

    AppLog.logE("result content", rawResult.getText()); // Prints scan results
    AppLog.logE("result name", rawResult.getBarcodeFormat().toString()); // Prints the scan format (qrcode, pdf417 etc.)

   // the resault of barcode will be given as an string rawResult.getText()
   // and you can do whatEver you want with it
   // handleBarcodeResult(rawResult.getText());

    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            mScannerView.resumeCameraPreview(BillPaymentFragment.this);
        }
    }, 2000);
}

最后，只要您想启动条码扫描器，只需调用以下代码：

mScannerView.startCamera();

如何一直显示条码扫描画面？

how to show bar-code scanning screen always?

android

barcode-scanner