package com.mm.android.deviceaddmodule.p_inputsn.scanresult;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.text.TextUtils;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.BinaryBitmap;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.MultiFormatReader;
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import com.google.zxing.RGBLuminanceSource;
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import com.google.zxing.Result;
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import com.google.zxing.common.HybridBinarizer;
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import com.mm.android.deviceaddmodule.mobilecommon.utils.LogUtil;
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import java.util.Hashtable;
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import java.util.Vector;
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public class DecodeImgThread extends Thread {
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/*图片路径*/
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private String imgPath;
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/*回调*/
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private DecodeImgCallback callback;
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private Bitmap scanBitmap;
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public DecodeImgThread(String imgPath, DecodeImgCallback callback) {
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this.imgPath = imgPath;
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this.callback = callback;
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}
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@Override
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public void run() {
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super.run();
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if (TextUtils.isEmpty(imgPath) || callback == null) {
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return;
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}
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Bitmap scanBitmap = getBitmap(imgPath, 400, 400);
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RGBLuminanceSource source = null;
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int width = scanBitmap.getWidth();
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int height = scanBitmap.getHeight();
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int[] pixels = new int[width * height];
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scanBitmap.getPixels(pixels, 0, width, 0, 0, width, height);
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source = new RGBLuminanceSource(width, height, pixels);
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MultiFormatReader multiFormatReader = new MultiFormatReader();
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// 解码的参数
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Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>(2);
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// 可以解析的编码类型
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Vector<BarcodeFormat> decodeFormats = new Vector<BarcodeFormat>();
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// 扫描的类型 一维码和二维码
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decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
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hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
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// 设置解析的字符编码格式为UTF8
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hints.put(DecodeHintType.CHARACTER_SET, "UTF8");
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// 设置解析配置参数
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multiFormatReader.setHints(hints);
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// 开始对图像资源解码
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Result rawResult = null;
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try {
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rawResult = new MultiFormatReader().decode(new BinaryBitmap(new HybridBinarizer(source)), hints);
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LogUtil.debugLog("解析结果", rawResult.getText());
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} catch (Exception e) {
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e.printStackTrace();
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}
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if (rawResult != null) {
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callback.onImageDecodeSuccess(rawResult);
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} else {
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callback.onImageDecodeFailed();
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}
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}
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/**
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* 根据路径获取图片
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*
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* @param filePath 文件路径
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* @param maxWidth 图片最大宽度
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* @param maxHeight 图片最大高度
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* @return bitmap
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*/
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private static Bitmap getBitmap(final String filePath, final int maxWidth, final int maxHeight) {
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BitmapFactory.Options options = new BitmapFactory.Options();
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options.inJustDecodeBounds = true;
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BitmapFactory.decodeFile(filePath, options);
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options.inSampleSize = calculateInSampleSize(options, maxWidth, maxHeight);
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options.inJustDecodeBounds = false;
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return BitmapFactory.decodeFile(filePath, options);
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}
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/**
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* Return the sample size.
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*
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* @param options The options.
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* @param maxWidth The maximum width.
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* @param maxHeight The maximum height.
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* @return the sample size
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*/
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private static int calculateInSampleSize(final BitmapFactory.Options options,
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final int maxWidth,
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final int maxHeight) {
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int height = options.outHeight;
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int width = options.outWidth;
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int inSampleSize = 1;
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while ((width >>= 1) >= maxWidth && (height >>= 1) >= maxHeight) {
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inSampleSize <<= 1;
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}
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return inSampleSize;
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}
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}
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