kode

<div class="card">

  <div class="item item-input-inset">
    <label class="item-input-wrapper" ng-init="barcode_input=''">
      <input ng-model="barcode_input" type="text" placeholder="Aproxime-se">
    </label>
    <a class="button button-small" barcode-scanner barcode-text="barcode_input">Ler QRcode</a>
  </div>

  <div class="item item-body" ng-if="barcode_input !='' ">
   <button class="button button-block button-positive" ng-click="redirect(barcode_input)">Go</button>
  </div>

</div>