DecodeThread.java
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/*
* Copyright (C) 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.yzq.zxinglibrary.decode;
import android.os.Handler;
import android.os.Looper;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.DecodeHintType;
import com.google.zxing.ResultPointCallback;
import com.yzq.zxinglibrary.android.CaptureActivity;
import java.util.Hashtable;
import java.util.Vector;
import java.util.concurrent.CountDownLatch;
/**
* This thread does all the heavy lifting of decoding the images.
*
* @author dswitkin@google.com (Daniel Switkin)
*/
public final class DecodeThread extends Thread {
private final CaptureActivity activity;
private final Hashtable<DecodeHintType, Object> hints;
private final Vector<BarcodeFormat> decodeFormats;
private Handler handler;
private final CountDownLatch handlerInitLatch;
public DecodeThread(CaptureActivity activity, ResultPointCallback resultPointCallback) {
this.activity = activity;
handlerInitLatch = new CountDownLatch(1);
hints = new Hashtable<>();
decodeFormats = new Vector<BarcodeFormat>();
/*是否解析有条形码（一维码）*/
if (activity.config.isDecodeBarCode()) {
decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
}
decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
hints.put(DecodeHintType.NEED_RESULT_POINT_CALLBACK, resultPointCallback);
}
public Handler getHandler() {
try {
handlerInitLatch.await();
} catch (InterruptedException ie) {
// continue?
}
return handler;
}
@Override
public void run() {
Looper.prepare();
handler = new DecodeHandler(activity, hints);
handlerInitLatch.countDown();
Looper.loop();
}
}