开启双识别引擎，二维码在扫描框内占满会无法识别，占据一半左右能识别，隔得远识别率高

[libin1993]

[libin1993]

zxing扫码近距离无法扫描，我将相机的分辨率取小一点皆可以了19201080，我取的小一号的1208720 if (maybeFlippedWidth < screenResolution.x && maybeFlippedHeight < screenResolution.y) { Point exactPoint = new Point(realWidth, realHeight); Log.i(TAG, "Found preview size exactly matching screen size: " + exactPoint); return exactPoint; }

[HoneyWorld]

@libin1993 你这里修改成小一号的进行识别，就修改了你代码贴出的这一处地方吗？

[libin1993]

@libin1993 你这里修改成小一号的进行识别，就修改了你代码贴出的这一处地方吗？

不同手机相机分辨率宽高比和屏幕分辨率宽高比不一致，我是根据相机分辨率宽高比设置了CameraPreview的高度，否则预览界面会变形。 if (maybeFlippedWidth <1500){ Point exactPoint = new Point(realWidth, realHeight); Log.d(TAG, "Found preview size exactly matching screen size: " + exactPoint); return exactPoint; }

@Override protected void onResume() { super.onResume(); if (cpScan != null) { cpScan.setScanCallback(resultCallback); cpScan.start();

        try{
            //CameraPreview设置宽高
            CameraManager cameraManager = cpScan.getmCameraManager();
            Camera camera = cameraManager.getmCamera();
            Camera.Parameters parameters = camera.getParameters();
            Point screenResolutionForCamera = new Point();
            screenResolutionForCamera.x = ScreenUtils.getScreenHeight();
            screenResolutionForCamera.y = ScreenUtils.getScreenWidth();
            Point bestPreviewSizeValue = CameraConfiguration.findBestPreviewSizeValue(parameters, screenResolutionForCamera);
            ViewGroup.LayoutParams layoutParams = cpScan.getLayoutParams();
            layoutParams.width = ScreenUtils.getScreenWidth();
            layoutParams.height = ScreenUtils.getScreenWidth() * bestPreviewSizeValue.x / bestPreviewSizeValue.y;
            LogUtils.log("sss" + layoutParams.width + "," + layoutParams.height);
            cpScan.setLayoutParams(layoutParams);
        }catch (Exception e){

        }

    }
}