Activity DataBinding

BaseActivity

import android.databinding.DataBindingUtil;
import android.databinding.ViewDataBinding;
import android.support.annotation.LayoutRes;
import android.support.v7.app.AppCompatActivity;
import android.view.View;

public class BaseActivity <T extends ViewDataBinding> extends AppCompatActivity {

    private T bind;
    public T getBind() { return bind; }

    public void setBindActivity(@LayoutRes int layoutId){
        bind = DataBindingUtil.setContentView(this, layoutId);
    }

    public View setBindView(View view){
         bind = DataBindingUtil.bind(view);
        return bind.getRoot();
    }
}