Android 开发笔记___RadioButton

horizontal

 <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" >

     <TextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="请选择您的性别"
         android:textColor="#000000"
         android:textSize="17sp" />

     <RadioGroup
         android:id="@+id/rg_sex"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="horizontal" >

         <RadioButton
             android:id="@+id/rb_male"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
             android:checked="false"
             android:text="男"
             android:textColor="#000000"
             android:textSize="17sp" />

         <RadioButton
             android:id="@+id/rb_female"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
             android:checked="false"
             android:text="女"
             android:textColor="#000000"
             android:textSize="17sp" />
     </RadioGroup>

     <TextView
         android:id="@+id/tv_sex"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:textColor="#000000"
         android:textSize="17sp" />

     <View
         android:layout_width="match_parent"
         android:layout_height="20dp" />

 </LinearLayout>

 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.RadioGroup;
 import android.widget.TextView;

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

 public class class_3_2_3 extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener {

     private final static String TAG = "RadioHorizontalActivity";
     private TextView tv_sex;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.code_3_2_3);
         tv_sex = (TextView) findViewById(R.id.tv_sex);
         RadioGroup rg_sex = (RadioGroup) findViewById(R.id.rg_sex);
         rg_sex.setOnCheckedChangeListener(this);
     }

     @Override
     public void onCheckedChanged(RadioGroup group, int checkedId) {
         if (checkedId == R.id.rb_male) {
             tv_sex.setText("哇哦，你是个帅气的男孩");
         } else if (checkedId == R.id.rb_female) {
             tv_sex.setText("哇哦，你是个漂亮的女孩");
         }
     }

     public static void startHome(Context mContext) {
         Intent intent = new Intent(mContext, class_3_2_3.class);
         mContext.startActivity(intent);
     }
 }

vertical

 <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" >

     <TextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="请选择您的婚姻状况"
         android:textColor="#000000"
         android:textSize="17sp" />

     <RadioGroup
         android:id="@+id/rg_marry"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical" >

         <RadioButton
             android:id="@+id/rb_unmarried"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:padding="5dp"
             android:button="@drawable/radio_selector"
             android:text="未婚"
             android:textColor="#000000"
             android:textSize="17sp" />

         <RadioButton
             android:id="@+id/rb_married"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:padding="5dp"
             android:button="@null"
             android:drawableLeft="@drawable/radio_selector"
             android:drawablePadding="10dp"
             android:text="已婚"
             android:textColor="#000000"
             android:textSize="17sp" />
     </RadioGroup>

     <TextView
         android:id="@+id/tv_marry"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:textColor="#000000"
         android:textSize="17sp" />

 </LinearLayout>

 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.RadioGroup;
 import android.widget.TextView;

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

 public class class_3_2_3_2 extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener {

     private final static String TAG = "RadioVerticalActivity";
     private TextView tv_marry;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.code_3_2_3_2);
         tv_marry = (TextView) findViewById(R.id.tv_marry);
         RadioGroup rg_marry = (RadioGroup) findViewById(R.id.rg_marry);
         rg_marry.setOnCheckedChangeListener(this);
     }

     @Override
     public void onCheckedChanged(RadioGroup group, int checkedId) {
         if (checkedId == R.id.rb_married) {
             tv_marry.setText("哇哦，祝你早生贵子");
         } else if (checkedId == R.id.rb_unmarried) {
             tv_marry.setText("哇哦，你的前途不可限量");
         }
     }

     public static void startHome(Context mContext) {
         Intent intent = new Intent(mContext, class_3_2_3_2.class);
         mContext.startActivity(intent);
     }

 }