解决 反色二维码扫描不出来的问题！

[aldelo-jacksonwang]

已找到解决问题方法

private ScanResult processData1(QRCodeView qrCodeView) { if (mData == null) { return null; } int width = 0; int height = 0; byte[] data = mData; try { Camera.Parameters parameters = mCamera.getParameters(); Camera.Size size = parameters.getPreviewSize(); width = size.width; height = size.height; // Bitmap bitmap = BitmapFactory.decodeByteArray(mData, 0, mData.length); BitmapFactory.Options newOpts = new BitmapFactory.Options();

        newOpts.inJustDecodeBounds = true;

        YuvImage yuvimage = new YuvImage(data, ImageFormat.NV21, width, height, null);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        yuvimage.compressToJpeg(new Rect(0, 0, width, height), 100, baos);// 80--JPG图片的质量[0-100],100最高byte[] rawImage = baos.toByteArray();
        //将rawImage转换成bitmap

        BitmapFactory.Options options = new BitmapFactory.Options();

        options.inPreferredConfig = Bitmap.Config.RGB_565;
        Bitmap bitmap = BitmapFactory.decodeByteArray(baos.toByteArray(), 0, baos.toByteArray().length, options);
        return qrCodeView.processBitmapData(reverseColor(bitmap));
    } catch (Exception e1) {
        e1.printStackTrace();
        try {
            if (width != 0 && height != 0) {
                BGAQRCodeUtil.d("识别失败重试");
                return qrCodeView.processData(data, width, height, true);
            } else {
                return null;
            }
        } catch (Exception e2) {
            e2.printStackTrace();
            return null;
        }
    }
}

[dlluotian]

能放下完整代码吗？

[aldelo-jacksonwang]

package cn.bingoogolapple.qrcode.core;

import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.ImageFormat; import android.graphics.Rect; import android.graphics.YuvImage; import android.hardware.Camera; import android.os.AsyncTask; import android.text.TextUtils; import android.util.Log;

import java.io.ByteArrayOutputStream; import java.lang.ref.WeakReference;

class ProcessDataTask extends AsyncTask<Void, Void, ScanResult> { private Camera mCamera; private byte[] mData; private boolean mIsPortrait; private String mPicturePath; private Bitmap mBitmap; private WeakReference mQRCodeViewRef; private static long sLastStartTime = 0;

ProcessDataTask(Camera camera, byte[] data, QRCodeView qrCodeView, boolean isPortrait) {
    mCamera = camera;
    mData = data;
    mQRCodeViewRef = new WeakReference<>(qrCodeView);
    mIsPortrait = isPortrait;
}

ProcessDataTask(String picturePath, QRCodeView qrCodeView) {
    mPicturePath = picturePath;
    mQRCodeViewRef = new WeakReference<>(qrCodeView);
}

ProcessDataTask(Bitmap bitmap, QRCodeView qrCodeView) {
    mBitmap = bitmap;
    mQRCodeViewRef = new WeakReference<>(qrCodeView);
}

ProcessDataTask perform() {
    executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
    return this;
}

void cancelTask() {
    if (getStatus() != Status.FINISHED) {
        cancel(true);
    }
}

@Override
protected void onCancelled() {
    super.onCancelled();
    mQRCodeViewRef.clear();
    mBitmap = null;
    mData = null;
}

private ScanResult processData(QRCodeView qrCodeView) {
    if (mData == null) {
        return null;
    }

    int width = 0;
    int height = 0;
    byte[] data = mData;
    try {
        Camera.Parameters parameters = mCamera.getParameters();
        Camera.Size size = parameters.getPreviewSize();
        width = size.width;
        height = size.height;

        if (mIsPortrait) {
            data = new byte[mData.length];
            for (int y = 0; y < height; y++) {
                for (int x = 0; x < width; x++) {
                    data[x * height + height - y - 1] = mData[x + y * width];
                }
            }
            int tmp = width;
            width = height;
            height = tmp;
        }
        //正常二维码
        ScanResult result=qrCodeView.processData(data, width, height, false);
        //反色二维码
        ScanResult result1=processData1(qrCodeView);

        if ( result!=null&&!TextUtils.isEmpty(result.result)){

            return result;
        }

        if (result1!=null&&!TextUtils.isEmpty(result1.result)){

            return result1;
        }

        return  null;

    } catch (Exception e1) {
        e1.printStackTrace();
        try {
            if (width != 0 && height != 0) {
                BGAQRCodeUtil.d("识别失败重试");
                return qrCodeView.processData(data, width, height, true);
            } else {
                return null;
            }
        } catch (Exception e2) {
            e2.printStackTrace();
            return null;
        }
    }
}

private ScanResult processData1(QRCodeView qrCodeView) {
    if (mData == null) {
        return null;
    }
    int width = 0;
    int height = 0;
    byte[] data = mData;
    try {
        Camera.Parameters parameters = mCamera.getParameters();
        Camera.Size size = parameters.getPreviewSize();
        width = size.width;
        height = size.height;
      //  Bitmap bitmap = BitmapFactory.decodeByteArray(mData, 0, mData.length);
        BitmapFactory.Options newOpts = new BitmapFactory.Options();

        newOpts.inJustDecodeBounds = true;

        YuvImage yuvimage = new YuvImage(data, ImageFormat.NV21, width, height, null);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        yuvimage.compressToJpeg(new Rect(0, 0, width, height), 100, baos);// 80--JPG图片的质量[0-100],100最高byte[] rawImage = baos.toByteArray();
        //将rawImage转换成bitmap

        BitmapFactory.Options options = new BitmapFactory.Options();

        options.inPreferredConfig = Bitmap.Config.RGB_565;
        Bitmap bitmap = BitmapFactory.decodeByteArray(baos.toByteArray(), 0, baos.toByteArray().length, options);
        return qrCodeView.processBitmapData(reverseColor(bitmap));
    } catch (Exception e1) {
        e1.printStackTrace();
        try {
            if (width != 0 && height != 0) {
                BGAQRCodeUtil.d("识别失败重试");
                return qrCodeView.processData(data, width, height, true);
            } else {
                return null;
            }
        } catch (Exception e2) {
            e2.printStackTrace();
            return null;
        }
    }
}

public Bitmap reverseColor(Bitmap bmp) {
    int width = bmp.getWidth();
    int height = bmp.getHeight();
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);//创建一个新的bitmap
    int[] pixs = new int[width * height];
    bmp.getPixels(pixs, 0, width, 0, 0, width, height);//把bitmap中的像素提取到pixs数组中去

    for (int i = 0; i < pixs.length; i++) {
        pixs[i] = pixs[i] ^ 0xffffffff;
    }
    bitmap.setPixels(pixs, 0, width, 0, 0, width, height);
    return bitmap;
}

@Override
protected ScanResult doInBackground(Void... params) {
    QRCodeView qrCodeView = mQRCodeViewRef.get();
    if (qrCodeView == null) {
        return null;
    }

    if (mPicturePath != null) {
        Log.e("======", "走mPicturePath");
        return qrCodeView.processBitmapData(BGAQRCodeUtil.getDecodeAbleBitmap(mPicturePath));
    } else if (mBitmap != null) {
        Log.e("======", "走ScanResult");
        ScanResult result = qrCodeView.processBitmapData(mBitmap);
        mBitmap = null;
        return result;
    } else {
        if (BGAQRCodeUtil.isDebug()) {
            BGAQRCodeUtil.d("两次任务执行的时间间隔：" + (System.currentTimeMillis() - sLastStartTime));
            sLastStartTime = System.currentTimeMillis();
        }
        long startTime = System.currentTimeMillis();

        ScanResult scanResult = processData(qrCodeView);
        if (BGAQRCodeUtil.isDebug()) {
            long time = System.currentTimeMillis() - startTime;
            if (scanResult != null && !TextUtils.isEmpty(scanResult.result)) {
                BGAQRCodeUtil.d("识别成功时间为：" + time);
            } else {
                BGAQRCodeUtil.e("识别失败时间为：" + time);
            }
        }

        if(scanResult!=null&& !TextUtils.isEmpty(scanResult.result)){

            return scanResult;
        }

        return  null;
    }
}

@Override
protected void onPostExecute(ScanResult result) {
    QRCodeView qrCodeView = mQRCodeViewRef.get();
    if (qrCodeView == null) {
        return;
    }

    if (mPicturePath != null || mBitmap != null) {
        mBitmap = null;
        qrCodeView.onPostParseBitmapOrPicture(result);
    } else {
        qrCodeView.onPostParseData(result);
    }
}

}

[aldelo-jacksonwang]

@dlluotian

[godgodfather]

问一下您发这个代码要怎么用呢