Remove title in Toolbar in appcompat-v7

Question

The documentation of Toolbar says

If an app uses a logo image it should strongly consider omitting a title and subtitle.

Answer 1

this

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayShowTitleEnabled(false);
    //toolbar.setNavigationIcon(R.drawable.ic_toolbar);
    toolbar.setTitle("");
    toolbar.setSubtitle("");
    //toolbar.setLogo(R.drawable.ic_toolbar);