android基础三之CheckBox

//activity_main.xml

<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"
    tools:context="com.vincentlin.checkbox.MainActivity" >

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/basketball" />
</LinearLayout>

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

<string name="app_name">CheckBox</string>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
    <string name="basketball">篮球</string>

</resources>

MainActivity.java

package com.vincentlin.checkbox;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
public class MainActivity extends Activity {
 private CheckBox checkbox;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  //初始化checkbox
  checkbox = (CheckBox) findViewById(R.id.checkBox1);
  //通过设置checkbox的监听事件来对checkbox是不是被选中
  checkbox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
   
   @Override
   public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
    //通过onCheckedChanged来监听当前的checkBox是否被选中
    Log.i("tag", isChecked+"");
    if (isChecked) {
     //获得checkBox的文本内容
     String text = checkbox.getText().toString();
     Log.i("tag", text);
    } 
   }
  });
 }

}