DecodeImgThread.java
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package com.yzq.zxinglibrary.decode;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.text.TextUtils;
import android.util.Log;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.Result;
import com.google.zxing.common.HybridBinarizer;
import java.util.Hashtable;
import java.util.Vector;
/**
* Created by yzq on 2017/10/17.
* <p>
* 解析二维码图片
* 解析是耗时操作，要放在子线程
*/
public class DecodeImgThread extends Thread {
/*图片路径*/
private String imgPath;
/*回调*/
private DecodeImgCallback callback;
private Bitmap scanBitmap;
public DecodeImgThread(String imgPath, DecodeImgCallback callback) {
this.imgPath = imgPath;
this.callback = callback;
}
@Override
public void run() {
super.run();
if (TextUtils.isEmpty(imgPath) || callback == null) {
return;
}
/**
* 对图片进行裁剪，防止oom
*/
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true; // 先获取原大小
scanBitmap = BitmapFactory.decodeFile(imgPath, options);
options.inJustDecodeBounds = false; // 获取新的大小
int sampleSize = (int) (options.outHeight / (float) 400);
if (sampleSize <= 0) {
sampleSize = 1;
}
options.inSampleSize = sampleSize;
scanBitmap = BitmapFactory.decodeFile(imgPath, options);
MultiFormatReader multiFormatReader = new MultiFormatReader();
// 解码的参数
Hashtable<DecodeHintType, Object> hints = new Hashtable<DecodeHintType, Object>(2);
// 可以解析的编码类型
Vector<BarcodeFormat> decodeFormats = new Vector<BarcodeFormat>();
if (decodeFormats == null || decodeFormats.isEmpty()) {
decodeFormats = new Vector<BarcodeFormat>();
// 扫描的类型 一维码和二维码
decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
// 设置解析的字符编码格式为UTF8
hints.put(DecodeHintType.CHARACTER_SET, "UTF8");
// 设置解析配置参数
multiFormatReader.setHints(hints);
// 开始对图像资源解码
Result rawResult = null;
try {
rawResult = multiFormatReader.decodeWithState(new BinaryBitmap(new HybridBinarizer(new BitmapLuminanceSource(scanBitmap))));
Log.i("解析结果", rawResult.getText());
} catch (Exception e) {
e.printStackTrace();
// Log.i("解析的图片结果","失败");
}
if (rawResult != null) {
callback.onImageDecodeSuccess(rawResult);
} else {
callback.onImageDecodeFailed();
}
}
}