title: why can't i decode barcode by MultiFormatReader with follow code?
body: <pre><code>//MultiFormatReader
  MultiFormatReader reader = new MultiFormatReader();
  Map&lt;DecodeHintType, Object&gt; hints = new HashMap&lt;&gt;();
  List&lt;BarcodeFormat&gt; formatList = new ArrayList&lt;&gt;();
  hints.put(DecodeHintType.TRY_HARDER, Boolean.TRUE);
  hints.put(DecodeHintType.POSSIBLE_FORMATS,
      EnumSet.allOf(BarcodeFormat.class));
  hints.put(DecodeHintType.PURE_BARCODE, Boolean.FALSE);
  hints.put(DecodeHintType.ASSUME_GS1, Boolean.TRUE);
  
  //encode
  reader.decode(binaryBitmap, hints);
  </code></pre>
  
  <p>other code work perfect to decode <strong>qrcode</strong> ,what may be the problem?i want develop an app that can decode qrcode or barcode.</p>