<p>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。</p><p>以下案例为ToggleButton的用法</p><p>目录结构</p><p><img src="/up_pic/201812/171045386496.png" title="171045386496.png" alt="1.png"/></p><p>main.xml布局文件</p><p>代码如下:</p><pre class="brush:xml;toolbar:false"><?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ImageViewandroid:id="@+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/bulb_off"
android:layout_gravity="center_horizontal"/>
<ToggleButtonandroid: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></pre><p>ToggleButtonActivity类</p><p>代码如下:</p><pre class="brush:java;toolbar:false">packagecom.ljq.tb;
importandroid.app.Activity;
importandroid.os.Bundle;
importandroid.widget.CompoundButton;
importandroid.widget.ImageView;
importandroid.widget.ToggleButton;
importandroid.widget.CompoundButton.OnCheckedChangeListener;
publicclassToggleButtonActivityextendsActivity{
privateImageViewimageView=null;
privateToggleButtontoggleButton=null;
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageView=(ImageView)findViewById(R.id.imageView);
toggleButton=(ToggleButton)findViewById(R.id.toggleButton);
toggleButton.setOnCheckedChangeListener(newOnCheckedChangeListener(){
publicvoidonCheckedChanged(CompoundButtonbuttonView,
booleanisChecked){
toggleButton.setChecked(isChecked);
imageView.setImageResource(isChecked?R.drawable.bulb_on:R.drawable.bulb_off);
}
});
}
}</pre><p>运行效果：</p><p><img src="/up_pic/201812/171045424916.png" title="171045424916.png" alt="2.png"/></p>