[FIXED] Cannot find method getGridView() in Android View Binding

Issue

I am using view binding with Java and have the following activity_main XML file

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <GridView
        android:id="@+id/grid_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />

</androidx.constraintlayout.widget.ConstraintLayout>

The official example in the docs shows that views can be accessed through a camel-case getter, like this:

binding.getName().setText(viewModel.getName());

According to the example in the docs then, I should be able to access the GridView from the binding like this

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ActivityMainBinding binding = ActivityMainBinding.inflate(getLayoutInflater());
    setContentView(binding.getRoot());
    
    GridView grid = binding.getGridView();
}

However, no getGridView method exists on my binding class. How do I access the view?

Solution

Unfortunately, the view binding documentation code examples with Java are out of date. Instead of generating a camel-case getter function now the generated binding class has public (and final) fields so you can access them directly, like this:

GridView grid = binding.gridView;

In the future, if you type binding. and let the IDE (i.e. Android Studio) show a suggestion of what to type (usually it shows up in a popup/dropdown view) it can help find the right method even when the documentation is wrong.

Answered By - Tyler V
Answer Checked By - Willingham (JavaFixing Volunteer)