Change Custom Toolbar Text
You forgot to set this:
setSupportActionBar(toolbar);
and this:
getSupportActionBar().setDisplayShowTitleEnabled(false);
YOUR ACTIVITY LIKE THIS:
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbarCustom);
setSupportActionBar(toolbar);
TextView textView = (TextView)toolbar.findViewById(R.id.toolbarTextView);
textView.setText("String");
getSupportActionBar().setDisplayShowTitleEnabled(false);
It will be like that. Java Code:
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); //here toolbar is your id in xml
setSupportActionBar(toolbar);
getSupportActionBar().setTitle("String"); //string is custom name you want