Android控件——ToggleButton多状态按钮(实现灯泡的开关)

思路:通过点击根据按钮的选择状态与false状态设置图片的路径

 1.布局文件:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <!-- textOn为true状态，textOff为false状态 -->

    <ToggleButton
        android:id="@+id/toggleButton1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="ToggleButton"
        android:textOff="关"
        android:textOn="开" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/img1" />

</LinearLayout>

2.MainActivity.java

package com.example.mooc;

import android.app.Activity;
import android.os.Bundle;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.MultiAutoCompleteTextView;
import android.widget.ToggleButton;

public class MainActivity extends Activity implements OnCheckedChangeListener {

    private Button login_button;
    private ToggleButton toggleButton;
    private ImageView imgView;
    private ImageButton img_button;
    private AutoCompleteTextView autoCompleteTextView1;
    private MultiAutoCompleteTextView mutiple;
    private String res[] = { "beijing1", "beijing2", "beijing3" };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 将布局文件引入到Activity
        setContentView(R.layout.toggle_button);
        toggleButton = (ToggleButton) findViewById(R.id.toggleButton1);
        imgView = (ImageView) findViewById(R.id.imageView1);

        toggleButton.setOnCheckedChangeListener(this);
    }

    /**
     * arg0:代表组件本身
     * arg1代表选中状态
     */
    @Override
    public void onCheckedChanged(CompoundButton arg0, boolean arg1) {
//        按钮被点击的时候此函数执行
        imgView.setBackgroundResource(arg1?R.drawable.ic_launcher:R.drawable.img1);

    }

}

3.效果:（false的时候显示收纳袋，true的时候显示安卓图标）

点击后