Android ToggleButton

ToggleButton的状态只能是选中和未选中,并且需要为不同的状态设置不同的显示文本。
以下案例为ToggleButton的用法
目录结构

main.xml布局文件

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<?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="开灯"
android:textOff="关灯"
android:layout_gravity="center_horizontal" />

</LinearLayout>

ToggleButtonActivity类

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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);
}

});
}
}

运行效果:

Posted by scalaview - 2015-01-19
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