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);
    }

}