在还没给大家介绍单选按钮(radiogroup)的使用，先给大家展示下效果图吧：
xml文件
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<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=".mainactivity"
android:orientation="vertical">
<textview
android:id="@+id/txt"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="您的性别为"/>
<radiogroup
android:id="@+id/sex"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<radiobutton
android:id="@+id/male"
android:text="男"/>
<radiobutton
android:id="@+id/female"
android:text="女"/>
</radiogroup>
</linearlayout>
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java文件
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public class
mainactivity extends activity {
private textview txt=null;
private radiogroup sex=null;
private radiobutton male=null;
private radiobutton female=null;
@override
protected void
oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.activity_main);
this.txt=(textview)
super.findviewbyid(r.id.txt);
this.sex=(radiogroup)
super.findviewbyid(r.id.sex);
this.male=(radiobutton)
super.findviewbyid(r.id.male);
this.female=(radiobutton)
super.findviewbyid(r.id.female);
this.sex.setoncheckedchangelistener(new
oncheckedchangelistenerimp());
} private class
oncheckedchangelistenerimp implements
oncheckedchangelistener{
public void
oncheckedchanged(radiogroup group, int checkedid)
{ string temp=null;
if(mainactivity.this.male.getid()==checkedid){
temp="男";
} else if(mainactivity.this.female.getid()==checkedid){
temp="女";
} mainactivity.this.txt.settext("您的性别是"+temp);
} }
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以上所述是小编给大家介绍的android程序开发中单选按钮(radiogroup)的使用详解，希望对大家有所帮助！