title: Is toolbar's logo icon clickable?
body: <p>i have used toolbar so now i want to apply click event over logo icon how can i get this event?</p>
  
  <p>here is some coding stuff that i have done</p>
  
  <pre><code>Toolbar toolbar = null;
  toolbar = (Toolbar) findViewById(R.id.actionToolbar);
  setSupportActionBar(toolbar);
  setTitle(null);
  toolbar.setNavigationIcon(R.drawable.back);
  toolbar.setNavigationContentDescription("BACK");
  toolbar.setLogo(R.drawable.ic_launcher);
  toolbar.setLogoDescription("LOGO");
  
  toolbar.setNavigationOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
          Toast.makeText(MainActivity.this, "Nav", Toast.LENGTH_SHORT).show();
      }
  });
  </code></pre>
  
  <p>Here i have set navigation icon and logo icon so now i want logo icon's click event, how it is possible? </p>