控件_RadioGroup&&RadioButton(单选按钮)和Toast

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

     <RadioGroup
         android:id="@+id/genderGroup"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:orientation="vertical"
         >
         <RadioButton
             android:id="@+id/man"
              android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:text="男"
             />
         <RadioButton
         android:id="@+id/woman"
          android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="女"
           />

     </RadioGroup>

 </LinearLayout>

 import android.app.Activity;
 import android.os.Bundle;
 import android.widget.CompoundButton;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
 import android.widget.RadioGroup.OnCheckedChangeListener;
 import android.widget.Toast;

 public class MainActivity extends Activity {
     private RadioGroup genderGroup;
     private RadioButton man;
     private RadioButton woman;
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         genderGroup = (RadioGroup) findViewById(R.id.genderGroup);
         man = (RadioButton) findViewById(R.id.man);
         woman = (RadioButton) findViewById(R.id.woman);

         RadioGroupListener Grouplistener = new RadioGroupListener();
         genderGroup.setOnCheckedChangeListener(Grouplistener);
         RadioButtonListener Buttonlistener = new RadioButtonListener();
         man.setOnCheckedChangeListener(Buttonlistener);
         woman.setOnCheckedChangeListener(Buttonlistener);
     }

     class RadioButtonListener implements android.widget.CompoundButton.OnCheckedChangeListener{
         public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {
             System.out.println(isChecked);
         }

     }
     class RadioGroupListener implements OnCheckedChangeListener{
         public void onCheckedChanged(RadioGroup group, int checkedId) {
             if(man.getId()==checkedId){
                 System.out.println("man");//这里不是简单的输出，要有针对的处理，比如更改数据库里的内容
                 Toast.makeText(MainActivity.this, "man", Toast.LENGTH_SHORT).show();
             }else if(woman.getId()==checkedId){
                 System.out.println("woman");
                 Toast.makeText(MainActivity.this, "woman", Toast.LENGTH_SHORT).show();
             }
         }

     }
 }

RadioGroup和CheckBox

 import android.os.Bundle;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
 import android.widget.Toast;
 import android.app.Activity;

 public class Activity07 extends Activity {
     //对控件对象进行声明
     private RadioGroup genderGroup = null;
     private RadioButton femaleButton = null;
     private RadioButton maleButton = null;
     private CheckBox swimBox = null;
     private CheckBox runBox = null;
     private CheckBox readBox = null;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.radio);

         //通过控件的ID来得到代表控件的对象
         genderGroup = (RadioGroup)findViewById(R.id.genderGroup);
         femaleButton = (RadioButton)findViewById(R.id.femaleButton);
         maleButton = (RadioButton)findViewById(R.id.maleButton);
         swimBox = (CheckBox)findViewById(R.id.swim);
         runBox = (CheckBox)findViewById(R.id.run);
         readBox = (CheckBox)findViewById(R.id.read);

         //为RadioGroup设置监听器，需要注意的是，这里的监听器和Button控件的监听器有所不同
         genderGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

             @Override
             public void onCheckedChanged(RadioGroup group, int checkedId) {//传进来的是控件的id
                 if(femaleButton.getId() == checkedId){
                     System.out.println("famale");//这里不是简单的输出，要有针对的处理，比如更改数据库里的内容
                     Toast.makeText(Activity07.this,"famale", Toast.LENGTH_SHORT).show();//用于提示用户
                 }
                 else if(maleButton.getId() == checkedId){
                     System.out.println("male");
                     Toast.makeText(Activity07.this,"male", Toast.LENGTH_SHORT).show();//用于提示用户
                 }

             }
         });

       //为多选按钮添加监听器
         swimBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {//传进来的是是否选中
                 if(isChecked){
                     System.out.println("swim is checked");
                 }else{
                     System.out.println("swim is unchecked");
                 }

             }
         });

         runBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 if(isChecked){
                     System.out.println("run is checked");
                 }else{
                     System.out.println("run is unchecked");
                 }

             }
         });

         readBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 if(isChecked){
                     System.out.println("read is checked");
                 }else{
                     System.out.println("read is unchecked");
                 }

             }
         });
     }
 }

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     >
 <RadioGroup
     android:id="@+id/genderGroup"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:orientation="vertical"
     >
     <RadioButton
         android:id="@+id/femaleButton"
          android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="@string/female"
           />
     <RadioButton
         android:id="@+id/maleButton"
          android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="@string/male"
           />
 </RadioGroup>

 <CheckBox
     android:id="@+id/swim"
      android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="@string/swim"
       />
 <CheckBox
     android:id="@+id/run"
      android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="@string/run"
       />
 <CheckBox
     android:id="@+id/read"
      android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="@string/read"
       />
 </LinearLayout>