Android ToggleButton控件

ToggleButton控件两种状态，属性TextOn/TextOff，默认为未选中，android:checked="false"，下面给出一个小例子：

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <ToggleButton
        android:id="@+id/ToggleButton1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:checked="false"
        android:textOff="关"
        android:textOn="开" />

    <ImageView
        android:id="@+id/ImageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@drawable/off" />

</LinearLayout>

下面事件绑定：实现OnCheckedChangeListener接口

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.ToggleButton;
import android.os.Build;

public class MainActivity extends ActionBarActivity implements OnCheckedChangeListener{

    private ToggleButton tg;
    private ImageView iv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //初始化控件
        tg = (ToggleButton) findViewById(R.id.ToggleButton1);
        iv = (ImageView) findViewById(R.id.ImageView1);
        
        //绑定事件
        tg.setOnCheckedChangeListener(this);
        
    }
    //这里的参数 button为被操作的ToggleButton，isChecked为android:checked属性值
    @Override
    public void onCheckedChanged(CompoundButton button, boolean isChecked) {
        
        //设置背景图片
        iv.setBackgroundResource(isChecked?R.drawable.on:R.drawable.off);//当checked为true是为on图片，false是off图片
        
    }
}

效果图如下：