title: How to set icon size in TabLayout?
body: <p>Here is my code:</p>
  
  <pre><code>private TabLayout tabLayout;
  private int[] tabIcons = {
          R.mipmap.ic_compass,
          R.mipmap.ic_place,
          R.mipmap.ic_passport,
          R.mipmap.ic_setting
  };
  
  
  ...
  tabLayout.getTabAt(0).setIcon(tabIcons[0]);
  tabLayout.getTabAt(1).setIcon(tabIcons[1]);
  tabLayout.getTabAt(2).setIcon(tabIcons[2]);
  tabLayout.getTabAt(3).setIcon(tabIcons[3]);
  </code></pre>
  
  <p>The size of icon is according to image size. How could I resize it?</p>