android控件开发之Radio（单选按钮）和CheckBox（多选按钮）开发

本博文主要讲述的是android开发中的单选和多选按钮的使用，具体情况请看实例代码：

MainActivity.java:

package com.example.radiotest;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.widget.CheckBox;

import android.widget.CompoundButton;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.Toast;

public class MainActivity extends Activity {

private RadioGroup generGroup = null;

private RadioButton maleButton = null;

private RadioButton femaleButton =null;

private CheckBox swin = null, run = null, jump = null;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

generGroup = (RadioGroup)findViewById(R.id.mySexGroup);

maleButton = (RadioButton)findViewById(R.id.maleButton);

femaleButton = (RadioButton)findViewById(R.id.femaleButton);

swin = (CheckBox)findViewById(R.id.swinBox);

run = (CheckBox)findViewById(R.id.runBox);

jump = (CheckBox)findViewById(R.id.jumpBox);

//设置RadioGroup监听器

generGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

@Override

public void onCheckedChanged(RadioGroup group, int checkedId) {

// TODO Auto-generated method stub

if(checkedId == maleButton.getId()){

Toast.makeText(MainActivity.this, "male", Toast.LENGTH_SHORT).show();

}

else if(checkedId == femaleButton.getId()){

Toast.makeText(MainActivity.this, "female", Toast.LENGTH_SHORT).show();

}

}

});

//设置CheckBox多选的监听器

swin.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

@Override

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

// TODO Auto-generated method stub

if(isChecked){

System.out.println("swin is checked!");

}

else{

System.out.println("swin is unchecked!");

}

}

});

run.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

@Override

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

// TODO Auto-generated method stub

if(isChecked){

System.out.println("run is checked!");

}

else{

System.out.println("run is unchecked!");

}

}

});

jump.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

@Override

public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

// TODO Auto-generated method stub

if(isChecked){

System.out.println("jump is checked!");

}

else{

System.out.println("jump is unchecked!");

}

}

});

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.main, menu);

return true;

}

}

布局文件main.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/LinearLayout1"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical"

    tools:context=".MainActivity" >

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/hello_world" />

    <RadioGroup 

        android:id="@+id/mySexGroup"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        >

        <RadioButton 

            android:id="@+id/maleButton"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="@string/male"/>

          <RadioButton 

            android:id="@+id/femaleButton"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="@string/female"/>

    </RadioGroup>

    <CheckBox 

        android:id="@+id/swinBox"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/swin"/>

    <CheckBox 

        android:id="@+id/runBox"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/run"/>

    <CheckBox 

        android:id="@+id/jumpBox"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/jump"/>

</LinearLayout>

效果如下：