<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
       android:orientation="vertical"
    >

    <ToggleButton
        android:checked="false"
        android:textOn="开"
        android:textOff="关"
        android:id="@+id/toggleButton1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/off"
        />
     
</LinearLayout>

package com.example.demo4;

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


public class MainActivity extends Activity implements OnCheckedChangeListener{
    private ToggleButton tb;
    private ImageButton img;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        tb = (ToggleButton) findViewById(R.id.toggleButton1);
        img = (ImageButton) findViewById(R.id.imageView1);
        
        tb.setOnCheckedChangeListener(this);
    
    
    }
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        // 当tb被点击的时候,当前的方法会执行,buttonView代表被点击控件的本身(id)
        img.setBackgroundResource(isChecked?R.drawable.on:R.drawable.off);
        
    }

   
}