FirstActivity

Now that your project is configured to use AndroidAnnotations, let's have fun with it!

• Create a new activity (or use an already existing one)
• Use @EActivity, @ViewById and @Click on the activity, following this example :

@EActivity(R.layout.main)
public class MyActivity extends Activity {

    @ViewById
    EditText myInput;
        
    @ViewById(R.id.myTextView)
    TextView textView;
        
    @Click
    void myButton() {
         String name = myInput.getText().toString();
    	 textView.setText("Hello "+name);
    }
}

The main.xml layout works as usual :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
	<EditText  
	    android:id="@+id/myInput"
	    android:layout_width="fill_parent" 
	    android:layout_height="wrap_content" 
	    />
	<Button  
	    android:id="@+id/myButton"
	    android:layout_width="fill_parent" 
	    android:layout_height="wrap_content" 
	    android:text="Click me!"
	    />        
	<TextView  
		android:id="@+id/myTextView"
	    android:layout_width="fill_parent" 
	    android:layout_height="wrap_content" 
	    />    
</LinearLayout>

• Save the file (Eclipse will compile it, and generate a subclass of MyActivity, named MyActivity_)

• Register MyActivity_ instead of MyActivity in your manifest :

<activity android:name=".MyActivity_" />

You should always register your activity with a _ suffix in the Android Manifest. This is because AndroidAnnotations generates a subclass for each annotated activity. It has the same package and name, plus a _ suffix.

Don't worry too much though, AndroidAnnotations will tell you if you forget to register your activities in the AndroidManifest.xml.

To learn more about what you can do with AndroidAnnotations, read the Cookbook.