ToggleButton的简单应用

package com.test.testtogglebutton;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.ToggleButton;

public class MainActivity extends AppCompatActivity {
    private ToggleButton tb;
    private ImageView img;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout);
//        初始化
        tb = (ToggleButton) findViewById(R.id.toggleButton);
        img = (ImageView) findViewById(R.id.imageView);
//      监听TB
        tb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
//                当TB被点击的时候当前的方法会被执行
//                buttonView代表被点击控件的本身
//                isChecked表示被点击的状态
                img.setImageResource(isChecked?R.mipmap.on:R.mipmap.off);
            }
        });
    }
}