您可以在BaseActivity中膨胀绑定对象，并将方法公开给子Activity以获取绑定对象。

public abstract class BaseActivity extends AppCompatActivity {

    //base binding
    private BaseScreenBinding baseBinding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); // always call base methods, your code didnt have those calls.

        baseBinding = BaseScreenBinding.inflate(getLayoutInflater());
        setContentView(baseBinding.getRoot());

        //your existing code to inflate child content
        View mFormView = baseBinding.pnContent;
        if (getContentAreaLayoutId() != 0) {
            LayoutInflater inflater = LayoutInflater.from(this);
            View contentLayout = inflater.inflate(getContentAreaLayoutId(), (ViewGroup) mFormView, false);
            ((ViewGroup) mFormView).addView(contentLayout, 0);
        }
    }
    
    protected BaseScreenBinding getBaseBinding() {
        return baseBinding;
    }

    protected abstract int getContentAreaLayoutId();
}

你现在可以在你的子Activity中使用ViewBinding，你的布局被BaseActivity膨胀，在子Activity中你将绑定到它。

class ChildActivity : BaseActivity() {

    private lateinit var binding: StandardContentSettingsBinding

    override fun getContentAreaLayoutId(): Int = R.layout.standard_content_settings

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        // Layout was inflated in BaseActivity, so now only bind to it.
        binding = StandardContentSettingsBinding.bind(getBaseBinding().pnContent)

        //This should work now
        binding.edURL.setText("test")
    }
}

在子Activity中，调用StandardContentSettingsBinding.bind(View)与inflate()不同，因为它不会创建新的视图层次结构，而是使用现有的视图层次结构，这正是您在本例中所希望的。
一些参考文献：https://developer.android.com/topic/libraries/data-binding/generated-binding