Question

我正在尝试编写在Android设备上使用有线USB扫描仪的代码。我尝试使用ZXing使用相机，但速度太慢。

我尝试了Java库，它可以在Java上完美运行。现在，我想使用该库通过绑定库在Xamarin.Forms上构建应用程序。但是我不熟悉Xamarin.Forms，所以有没有教程可以帮助我将代码转换为Xamarin.Form？

在Java中，我使用以下这些代码来使用该库。我还附加了整个MainActivity和Jar文件。预先感谢。

private static final int HIDE_SERIAL_CTL_MSG = 1;
private static final int DEVICE_POWER_STATE_CHANGE_MSG = 2;
private static final int CLEAR_RESULT_MSG = 4;
private static String TAG = "ACT_QRScan";
USBQRscanFactory usbScan;
private Button btnLightSetting,
        btnScan, btnContinuoutStart, btnPowerOnOff,
        btnSetTimeOut;
private EditText etTimeOutSeconds;
private TextView mShow;
private TextView mTvstatus;
private ScanBroadcastReceiver scanBroadcastReceiver;
private boolean mWorkingStateFlag = false;
private boolean mPowerStateFlag = true;
private Context mCtx;
private Player mPlayer;



 public void onCreate(Bundle savedInstanceState) {

if (null == mPlayer)
            mPlayer = new Player();
        mPlayer.init(mCtx, R.raw.done);
        scanBroadcastReceiver = new ScanBroadcastReceiver(mPlayer, R.raw.done);

    hideSerialCtls(true);

    usbScan = USBQRscanFactory.createInstance();
  private Intent getUSBScanService() {
    // TODO Auto-generated method stub
    Intent i = new Intent();
    i.setAction("com.unistrong.qrcode.USBScanService");
    i.setPackage(getApplication().getPackageName());
    return i;
}


private void openScanner(boolean open) {
    if (open == mWorkingStateFlag) return;
    if (open) {
        try {
            Thread.sleep(50);
            usbScan.open();
            usbScan.enableAddKeyValue(0);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } else {
        if (null != usbScan) {
            if (btnContinuoutStart.getTag().equals("1")) {
                usbScan.continuousScan(false);
                btnContinuoutStart.setTag("0");
                btnContinuoutStart.setText(getString(R.string.str_continuous_scan_start));
            }
            usbScan.close();
        }
        H.sendEmptyMessage(CLEAR_RESULT_MSG);
    }
}

在Xamarin.Forms中使用有线USB扫描仪的代码

0 个答案: