Android 开发笔记___复选框__checkbox

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
     android:padding="10dp" >

     <CheckBox
         android:id="@+id/ck_system"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:padding="10dp"
         android:checked="false"
         android:text="这是系统的CheckBox"
         android:textColor="#000000"
         android:textSize="17sp" />

     <CheckBox
         android:id="@+id/ck_custom"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:button="@drawable/checkbox_selector"
         android:padding="10dp"
         android:checked="false"
         android:text="这个CheckBox换了图标"
         android:textColor="#000000"
         android:textSize="17sp" />

 </LinearLayout>

java

 package com.example.alimjan.hello_world;

 import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;

 /**
  * Created by alimjan on 7/2/2017.
  */

 public class class_3_2_1 extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.code_3_2_1);
         CheckBox ck_system = (CheckBox) findViewById(R.id.ck_system);
         CheckBox ck_custom = (CheckBox) findViewById(R.id.ck_custom);
         ck_system.setOnCheckedChangeListener(this);
         ck_custom.setOnCheckedChangeListener(this);
     }

     @Override
     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
         String desc = String.format("您%s了这个CheckBox", isChecked?"勾选":"取消勾选");
         buttonView.setText(desc);
     }

     public static void startHome(Context mContext) {
         Intent intent = new Intent(mContext, class_3_2_1.class);
         mContext.startActivity(intent);
     }

 }