sample/src/main/java/com/gordonwong/materialsheetfab/sample/MainActivity.java
private void setupActionBar() {
		setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
		getSupportActionBar().setDisplayHomeAsUpEnabled(true);
	}
private void setupActionBar() {
		setSupportActionBar((Toolbar) findViewById(R.id.toolbar));
		getSupportActionBar().setDisplayHomeAsUpEnabled(true);
	}
Sets up the action bar.