use of com.uuzuche.lib_zxing.camera.BitmapLuminanceSource in project android-zxingLibrary by yipianfengye.
the class CodeUtils method analyzeBitmap.
/**
* 解析二维码图片工具类
* @param analyzeCallback
*/
public static void analyzeBitmap(String path, AnalyzeCallback analyzeCallback) {
/**
* 首先判断图片的大小,若图片过大,则执行图片的裁剪操作,防止OOM
*/
BitmapFactory.Options options = new BitmapFactory.Options();
// 先获取原大小
options.inJustDecodeBounds = true;
Bitmap mBitmap = BitmapFactory.decodeFile(path, options);
// 获取新的大小
options.inJustDecodeBounds = false;
int sampleSize = (int) (options.outHeight / (float) 400);
if (sampleSize <= 0)
sampleSize = 1;
options.inSampleSize = sampleSize;
mBitmap = BitmapFactory.decodeFile(path, 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>();
// 这里设置可扫描的类型,我这里选择了都支持
decodeFormats.addAll(DecodeFormatManager.ONE_D_FORMATS);
decodeFormats.addAll(DecodeFormatManager.QR_CODE_FORMATS);
decodeFormats.addAll(DecodeFormatManager.DATA_MATRIX_FORMATS);
}
hints.put(DecodeHintType.POSSIBLE_FORMATS, decodeFormats);
// 设置继续的字符编码格式为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(mBitmap))));
} catch (Exception e) {
e.printStackTrace();
}
if (rawResult != null) {
if (analyzeCallback != null) {
analyzeCallback.onAnalyzeSuccess(mBitmap, rawResult.getText());
}
} else {
if (analyzeCallback != null) {
analyzeCallback.onAnalyzeFailed();
}
}
}
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