[xamarin]로그인화면

http://xamaringuyhome.blogspot.kr/2017/10/

이분의 소스를 따라 쳐봤음

MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:App1Login"
             x:Class="App1Login.MainPage">
 
    <Grid>
        <ScrollView>
            <StackLayout>
                <StackLayout Padding="30" Spacing="2" VerticalOptions="CenterAndExpand" HorizontalOptions="FillAndExpand">
                    <Label Text="Name or Phone Number" 
                           TextColor="#555" 
                           FontSize="20" 
                           FontAttributes="Bold"/>
                    <Entry Keyboard="Numeric" 
                           Placeholder="Enter Authinticated Phone Number Or Name" 
                           PlaceholderColor="#CCC" 
                           FontSize="20" 
                           TextColor="#555" />
                    <Label Text="Password" 
                           TextColor="#555" 
                           FontSize="20" 
                           FontAttributes="Bold"/>
                    <Entry  Placeholder="Enter correct password" 
                            Keyboard="Default" 
                            IsPassword="True" 
                            FontSize="20" 
                            PlaceholderColor="#CCC" 
                            TextColor="#555" />
                </StackLayout>
                <StackLayout Padding="30" VerticalOptions="CenterAndExpand" HorizontalOptions="FillAndExpand">
                    <Button x:Name="BtnLogin" Text="Login" BorderColor="#CB9600" BackgroundColor="#F4B400"/>
                </StackLayout>
            </StackLayout>
        </ScrollView>
 
       
        <ActivityIndicator x:Name="activityIndicator" 
                           IsRunning="{Binding IsBusy}" 
                           VerticalOptions="Center" 
                           HorizontalOptions="Center" 
                           Color="Blue" />
    </Grid>
 
</ContentPage>
 

MainPage.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;
 
namespace App1Login
{
    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
 
            // Define the binding context
            this.BindingContext = this;
 
            // Set the IsBusy property
            this.IsBusy = false;
 
            // Login button action
            this.BtnLogin.Clicked += BtnLogin_Clicked;
        }
 
        private void BtnLogin_Clicked(object sender, EventArgs e)
        {
            this.IsBusy = true;
        }
    }
}