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);     }     }   });  } }