<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"    
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:orientation="vertical">
    
   <TextView
            android:id="@+id/text"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"            
            android:text="Text"
        ></TextView>
        
        <Button 
                android:id="@+id/button" 
                android:layout_width="wrap_content" 
                android:layout_height="wrap_content" 
                android:text="Button" 
        ></Button>
        
</LinearLayout>

public class TestActivity extends Activity {
        
        private AQuery aq;
        
        @Override
        public void onCreate(Bundle savedInstanceState) {
                  
                super.onCreate(savedInstanceState);
                setContentView(R.layout.test);

                //use activity to create the AQuery object
                //this set the activity as the "root"   
  
                aq = new AQuery(this);
          
                //id(R.id.text) - point the current "view" to the TextView with id=R.id.text
                //text("Hello") - call the corresponding methods to change it

                aq.id(R.id.text).text("Hello");
          
                //id(R.id.button) - switch to a different "view"
                //text("Click Me") - update the button text
                //clicked(this, "buttonClicked") - assign a listener to the button, pass in the method name

                aq.id(R.id.button).text("Click Me").clicked(this, "buttonClicked");


                //this view does not exist in the layout
                //this shows how to check view existence and how to get the underlying view
                //if operation is performed on a non-existent view, all operations are ignored and return immeidately
                aq.id(R.id.image);
                if(aq.isExist()){
        
                        ImageView imageView = aq.getImageView();
        
                        //perform other non-AQuery operations
        
                }         
                
        }
        
        public void buttonClicked(View button){
                
                //update the text
                aq.id(R.id.text).text("Hello World");
                
        }
        
}