package com.tejia.lijin.app.util.zxing.decode;
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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 android.util.Log;
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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.Result;
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import com.google.zxing.common.HybridBinarizer;
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import java.util.Hashtable;
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import java.util.Vector;
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/**
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* Created by yzq on 2017/10/17.
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* <p>
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* 解析二维码图片
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* 解析是耗时操作，要放在子线程
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*/
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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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/**
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* 对图片进行裁剪，防止oom
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*/
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BitmapFactory.Options options = new BitmapFactory.Options();
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options.inJustDecodeBounds = true; // 先获取原大小
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scanBitmap = BitmapFactory.decodeFile(imgPath, options);
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options.inJustDecodeBounds = false; // 获取新的大小
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int sampleSize = (int) (options.outHeight / (float) 400);
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if (sampleSize <= 0)
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sampleSize = 1;
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options.inSampleSize = sampleSize;
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scanBitmap = BitmapFactory.decodeFile(imgPath, options);
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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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if (decodeFormats == null || decodeFormats.isEmpty()) {
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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.ONE_D_FORMATS);
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decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
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decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
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}
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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 = multiFormatReader.decodeWithState(new BinaryBitmap(new HybridBinarizer(new BitmapLuminanceSource(scanBitmap))));
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Log.i("解析结果", rawResult.getText());
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} catch (Exception e) {
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e.printStackTrace();
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// Log.i("解析的图片结果","失败");
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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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