照着牛腩老师的视频，自己做了个注册页面，实现了简单的单选控件、多选控件、下拉菜单控件的使用，由于日历控件太丑，就不模仿了，下面就是reg.axml的布局效果，后面是代码。
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<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:minWidth="25px"
android:minHeight="25px"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollView1">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="horizontal"
android:minWidth="25px"
android:minHeight="25px"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout1"
android:gravity="center">
<TextView
android:text="注册界面"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView1" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout2">
<TextView
android:text="用户名："
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView2" />
<EditText
android:inputType="date"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/editText1" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout3">
<TextView
android:text="密码："
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView3" />
<EditText
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/editText2" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout4">
<TextView
android:text="确认密码："
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView4" />
<EditText
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/editText3" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout5">
<TextView
android:text="性别："
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView5" />
<RadioGroup
android:minWidth="25px"
android:minHeight="25px"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/radioGroup1"
android:orientation="horizontal">
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="男"
android:id="@+id/radioButton1" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="女"
android:id="@+id/radioButton2" />
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="不男不女"
android:id="@+id/radioButton3" />
</RadioGroup>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout7">
<TextView
android:text="爱好："
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView6" />
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/linearLayout8">
<CheckBox
android:text="体育"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/checkBox2" />
<CheckBox
android:text="音乐"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/checkBox4" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/linearLayout9">
<CheckBox
android:text="购物"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/checkBox5" />
<CheckBox
android:text="电影"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/checkBox6" />
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/linearLayout10">
<CheckBox
android:text="汽车"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/checkBox7" />
<CheckBox
android:text="财经"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/checkBox8" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout11"
android:gravity="left">
<TextView
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/textView7"
android:text="最喜欢的编程语言" />
<Spinner
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/spinner1" />
</LinearLayout>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/linearLayout6"
android:gravity="center">
<Button
android:text="返回"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/button2" />
<Button
android:text="注册"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:id="@+id/button3" />
</LinearLayout>
</LinearLayout>
</ScrollView>
RegActivity.cs 的程序文件如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
namespace App5
{
[Activity(Label = "RegActivity")]
public class RegActivity : Activity
{
//老规矩，先定义控件
Button btn_reg;
Button btn_return;
EditText txt_username;
EditText txt_pwd;
EditText txt_pwd2;
RadioButton rad_xbm,rad_xbw,rad_xbmw;
CheckBox chk_sport,chk_movie, chk_shopping, chk_car, chk_finace, chk_music;
Spinner sp_inst;
string xb;
string whe;
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Create your application here
SetContentView(Resource.Layout.reg);
//绑定控件
btn_reg = FindViewById<Button>(Resource.Id.button3);
btn_return = FindViewById<Button>(Resource.Id.button2);
txt_username = FindViewById<EditText>(Resource.Id.editText1);
txt_pwd = FindViewById<EditText>(Resource.Id.editText2);
txt_pwd2 = FindViewById<EditText>(Resource.Id.editText3);
rad_xbm = FindViewById<RadioButton>(Resource.Id.radioButton1);
rad_xbw = FindViewById<RadioButton>(Resource.Id.radioButton2);
rad_xbmw = FindViewById<RadioButton>(Resource.Id.radioButton3);
chk_car = FindViewById<CheckBox>(Resource.Id.checkBox7);
chk_finace= FindViewById<CheckBox>(Resource.Id.checkBox8);
chk_sport = FindViewById<CheckBox>(Resource.Id.checkBox2);
chk_shopping= FindViewById<CheckBox>(Resource.Id.checkBox5);
chk_movie= FindViewById<CheckBox>(Resource.Id.checkBox6);
chk_music= FindViewById<CheckBox>(Resource.Id.checkBox4);
sp_inst = FindViewById<Spinner>(Resource.Id.spinner1);
btn_reg.Click += Btn_reg_Click;
btn_return.Click += Btn_return_Click;
//这是下拉菜单的写法，有点复杂，不过这已经是网上最简单的写法了
List<string> list = new List<string>() { "php", "c#", "photoshop" };
ArrayAdapter ada = new ArrayAdapter(this, Android.Resource.Layout.SimpleDropDownItem1Line);
ada.AddAll(list);
sp_inst.Adapter = ada;
}
private void Btn_return_Click(object sender, EventArgs e)
{
this.Finish();
}
private void Btn_reg_Click(object sender, EventArgs e)
{
//这里用到了三元运算符，可以少写不少if+else（敲黑板 划重点）
xb = rad_xbm.Checked ? "男" : (rad_xbw.Checked?"女":"不男不女");
//获取下拉菜单的值
whe = sp_inst.SelectedItem.ToString();
string returnmessage = "";
returnmessage += txt_username.Text+"\n";
returnmessage += txt_pwd.Text + "\n";
returnmessage += txt_pwd2.Text + "\n";
returnmessage += xb + "\n";
returnmessage += whe;
Toast.MakeText(this, "这是一个弹框！ \n密码 \n" + returnmessage, ToastLength.Long).Show();
}
}
}
日行一善~~