本文实例讲述了android单选按钮对话框用法。分享给大家供大家参考。具体如下：
main.xml布局文件
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<?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">
<edittext android:text=""
android:id="@+id/edittext"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:editable="false"
android:cursorvisible="false" />
<button android:text="显示单选对话框"
android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</linearlayout>
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array.xml数组
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="hobby">
<item>游泳</item>
<item>打篮球</item>
<item>登山</item>
</string-array>
</resources>
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alertdialog类
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package com.ljq.dialog;
import android.app.activity;
import android.app.dialog;
import android.app.alertdialog.builder;
import android.content.dialoginterface;
import android.content.dialoginterface.onclicklistener;
import android.os.bundle;
import android.view.view;
import android.widget.button;
import android.widget.edittext;
public class alertdialog extends activity {
private edittext edittext;
private final static int dialog=1;
@override
public void oncreate(bundle savedinstancestate) {
super.oncreate(savedinstancestate);
setcontentview(r.layout.main);
edittext=(edittext)findviewbyid(r.id.edittext);
button button = (button) findviewbyid(r.id.button);
button.setonclicklistener(new view.onclicklistener() {
public void onclick(view v) {
// 显示对话框
showdialog(dialog);
}
});
}
/**
* 创建单选按钮对话框
*/
@override
protected dialog oncreatedialog(int id) {
dialog dialog=null;
switch (id) {
case dialog:
builder builder=new android.app.alertdialog.builder(this);
//设置对话框的图标
builder.seticon(r.drawable.header);
//设置对话框的标题
builder.settitle("单选按钮对话框");
//0: 默认第一个单选按钮被选中
builder.setsinglechoiceitems(r.array.hobby, 0, new onclicklistener(){
public void onclick(dialoginterface dialog, int which) {
string hoddy=getresources().getstringarray(r.array.hobby)[which];
edittext.settext("您选择了： "+hoddy);
}
});
//添加一个确定按钮
builder.setpositivebutton(" 确 定 ", new dialoginterface.onclicklistener(){
public void onclick(dialoginterface dialog, int which) {
}
});
//创建一个单选按钮对话框
dialog=builder.create();
break;
}
return dialog;
}
}
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运行结果：
希望本文所述对大家的android程序设计有所帮助。