package com.xiaozhang.autocomplete1;

import android.app.Activity;
import android.os.Bundle;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.ToggleButton;

public class MainActivity extends Activity {

    private ImageView imageView;
    private ToggleButton togglebutton;

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

        imageView = (ImageView) findViewById(R.id.imageView);
        togglebutton = (ToggleButton) findViewById(R.id.togglebutton);
        togglebutton.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            public void onCheckedChanged(CompoundButton buttonView,
                    boolean isChecked) {
                imageView.setImageResource(isChecked ? R.drawable.right
                        : R.drawable.wrong);
            }
        });

    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:src="@drawable/wrong" />

    <ToggleButton
        android:id="@+id/togglebutton"
        android:layout_width="120dp"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:textOff="wrong"
        android:textOn="right" />

</LinearLayout>