用于扫描的zxing相机视图是颠倒的

Question

我正在使用Zxing库在Android中开发条形码扫描仪。扫描仪可以正常工作，但用于扫描的相机视图却像屏幕截图中所示那样颠倒了。如何解决？

Answer 1

将应用程序的屏幕方向设置为sensorLandscape而不是横向

Answer 2

尝试调整相机方向

public HttpResponseMessage GetDetails(string msn, DateTime dt)
{
   try
    {
          var mainDetails= new List<string>();

          int mainCount = giveMainCount(msn, dt);

           if(mainCount==0)
           {
              // here I want to set the list empty like mainDetails = null or "" like this
           }

            int mainInterval = mainCount / 500;

            mainDetails = kesc.tj_xhqd
                         .AsNoTracking()
                         .Where(m => (m.zdjh == msn) && (m.sjsj >= dt))
                         .AsEnumerable()
                         .Select((x, i) => new { MSN = x.zdjh, PingDateTime = x.sjsj, PingValue = x.xhqd, i = i })
                         .Where(x => x.i % mainInterval == 0)
                         .ToList(); // here I am getting error 
       return Request.CreateResponse(HttpStatusCode.OK, new { details = mainDetails });

    }
    catch (Exception ex)
    {
        return Request.CreateErrorResponse(HttpStatusCode.NotFound, ex);
    }


    }
}

并在清单中声明如下：

camera.setDisplayOrientation(90);

对于纵向和横向，请在<activity android:name="CaptureActivity" android:screenOrientation="fullSensor" tools:replace="screenOrientation" /> 中添加行

integrator