free version

BaseActivity.java

public class BaseActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public void setContentView(int layoutResID)
    {
        View fullView = getLayoutInflater().inflate(layoutResID, null);
        super.setContentView(fullView);
    }

}