Android 控件开发之ToggleButton

ToggleButton有两种状态：选中和未选择状态，并且需要为不同的状态设置不同的显示文本

ToggleButton效果：



本程序main.xml源码

[cpp] view
plaincopy

<?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"

>

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"/>

<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="开灯"

android:textOff="关灯"

android:layout_gravity="center_horizontal" />

</LinearLayout>

ToggleButton事件响应[b]setOnCheckedChangeListener[/b]

本程序java源码

[cpp] view
plaincopy

package com.sx.ToggleButton;

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 ToggleButtonActivity extends Activity

{

private ImageView imageView=null;

private ToggleButton toggleButton=null;

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);

}

});

}

}