title: how to fix 'The application is infected with a virus' on Huawei or vivo cellphones
body: <p>I made a apk with the code written by me.</p>
  
  <p>When I use HuaWei or vivo cells to download the apk, 
  the browser show the tip "The application is infected with a virus".</p>
  
  <p>how to fix it ?</p>