Android control-ToggleButton

The ToggleButton status can only be selected or not selected, and different display text needs to be set for different states.

The following uses ToggleButton:

Directory structure

Main. xml layout File

<? 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">
<ImageView android: id = "@ + id/imageView"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: src = "@ drawable/bulb_off"
Android: layout_gravity = "center_horizontal"/>
<ToggleButton android: id = "@ + id/toggleButton"
Android: layout_width = "140dip"
Android: layout_height = "wrap_content"
Android: textOn = "turn on the light"
Android: textOff = "turn off the light"
Android: layout_gravity = "center_horizontal"/>
</LinearLayout>

ToggleButtonActivity class

package com.ljq.tb;

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

public class ToggleButtonActivity extends Activity {
private ImageView imageView=null;
private ToggleButton toggleButton=null;

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

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

public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
                toggleButton.setChecked(isChecked);
                imageView.setImageResource(isChecked?R.drawable.bulb_on:R.drawable.bulb_off);
            }

        });
    }
}

Running effect: