如何从另一个类访问ImageButton控件？

public class MainActivity extends AppCompatActivity {
    private ImageButton myImageButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        myImageButton = findViewById(R.id.myImageButton);

        MyClass myClass = new MyClass(myImageButton);
        myClass.doSomething();
    }
}

public class MyClass {
    private ImageButton imageButton;

    public MyClass(ImageButton imageButton) {
        this.imageButton = imageButton;
    }

    public void doSomething() {
        // 在这里可以通过imageButton访问ImageButton控件并进行操作
        imageButton.setImageResource(R.drawable.new_image);
    }
}