Android开发ToggleButton控件1

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。首先先看一下效果:

  下面看一下ToggleButton的用法(相关的代码):

Android开发ToggleButton控件1_第1张图片

  main.xml的布局文件

  <?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

  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);
  }

  });
  }
  }

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