MainActivityBinding.inflate(getLayoutInflater()) 页面未更新

Question

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main2);
    Main2Binding binding1 =  Main2Binding.inflate(getLayoutInflater());
    User user = new User("Test", "User");
    MyHandlers myHandlers = new MyHandlers(this);
    MyStringUtils myStringUtils=  new MyStringUtils();
    binding1.setUser(user);
    binding1.setHandlers(myHandlers);
}

页面未更新，

MainActivityBinding binding1 = DataBindingUtil.setContentView (this, R.layout.main_activity); there is no problem

如何解决这个问题？

Answer 1

如果您想将布局与 Activity 绑定，您需要使用

MainActivityBinding binding1 = DataBindingUtil.setContentView (this, R.layout.main_activity);

但是当你使用 Fragment 时，你可以使用 inflate

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    MainActivityBinding binding = DataBindingUtil.inflate(inflater, R.layout.main_activity, container, false);
}

注意：绑定名称将基于布局名称，如果布局文件名称是 activity_main.xml 那么您的绑定将是 ActivityMainBinding。

Answer 2

通过inflate方法使用DataBinding的正确方法

@Override
protected void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  
    //setContentView(R.layout.main2); //<---comment it
    Main2Binding binding1 = Main2Binding.inflate(getLayoutInflater());
    setContentView(binding1.getRoot());
    ...
}

MainActivityBinding.inflate(getLayoutInflater()) 页面未更新

MainActivityBinding.inflate(getLayoutInflater()) page is not updated

android

android-databinding