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  • RainbowEight

     1 using System;
     2 using System.Collections.Generic;
     3 using System.IO;
     4 using System.Linq;
     5 using System.Runtime.InteropServices.WindowsRuntime;
     6 using System.Threading.Tasks;
     7 using Windows.Foundation;
     8 using Windows.Foundation.Collections;
     9 using Windows.UI.Xaml;
    10 using Windows.UI.Xaml.Controls;
    11 using Windows.UI.Xaml.Controls.Primitives;
    12 using Windows.UI.Xaml.Data;
    13 using Windows.UI.Xaml.Input;
    14 using Windows.UI.Xaml.Media;
    15 using Windows.UI.Xaml.Navigation;
    16 
    17 // The Blank Page item template is documented at https://go.microsoft.com/fwlink/?LinkId=402352&clcid=0x409
    18 
    19 namespace RainbowEight
    20 {
    21     /// <summary>
    22     /// An empty page that can be used on its own or navigated to within a Frame.
    23     /// </summary>
    24     public sealed partial class MainPage : Page
    25     {
    26         double txtblkBaseSize;
    27         Random rand = new Random();
    28         public MainPage()
    29         {
    30             this.InitializeComponent();
    31             Loaded += OnPageLoad;
    32         }
    33 
    34         void OnPageLoad(object sender,RoutedEventArgs e)
    35         {
    36             txtblkBaseSize = txtblk.ActualHeight;
    37             CompositionTarget.Rendering += OnCompositionTargetRendering;
    38         }
    39 
    40         void OnCompositionTargetRendering(object sender,object e)
    41         {
    42             // TimeSpan.FromSeconds(30000)
    43             //            Task.Delay(30);
    44  //           Sleep(1000);
    45 
    46 //            txtblk.Text = (rand.Next() % 10).ToString();
    47             
    48             txtblk.FontSize = ActualHeight / txtblkBaseSize;
    49 
    50             RenderingEventArgs renderingArgs = e as RenderingEventArgs;
    51 
    52             double t = (0.25 * renderingArgs.RenderingTime.TotalSeconds) % 1;
    53 
    54             for (int index=0; index < gradientBrush.GradientStops.Count; index++)
    55             {
    56                 gradientBrush.GradientStops[index].Offset = index / 7.0 - t;
    57             }
    58         }
    59 
    60         static void Sleep(int ms)
    61         {
    62             new System.Threading.ManualResetEvent(false).WaitOne(ms);
    63         }
    64 
    65         private void OnPage_SizeChanged(object sender, SizeChangedEventArgs e)
    66         {
    67                         txtblkBaseSize = txtblk.ActualHeight;
    68             //            
    69             //  txtblk.FontSize = 8;
    70             txtblk.FontSize = ActualHeight / txtblkBaseSize;
    71         }
    72     }
    73 }
     1 <Page
     2     x:Class="RainbowEight.MainPage"
     3     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
     4     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     5     xmlns:local="using:RainbowEight"
     6     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     7     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
     8     mc:Ignorable="d">
     9 
    10     <Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    11         <TextBlock Name="txtblk"
    12                    Text="8"
    13                    FontFamily="CooperBlack"
    14                    FontSize="1"
    15                    HorizontalAlignment="Center"
    16                    >
    17             <TextBlock.Foreground>
    18                 <LinearGradientBrush x:Name="gradientBrush">
    19                     <GradientStop Offset="0.00" Color="Red"/>
    20                     <GradientStop Offset="0.14" Color="Orange"/>
    21                     <GradientStop Offset="0.28" Color="Yellow"/>
    22                     <GradientStop Offset="0.43" Color="Green"/>
    23                     <GradientStop Offset="0.57" Color="Blue"/>
    24                     <GradientStop Offset="0.71" Color="Indigo"/>
    25                     <GradientStop Offset="0.86" Color="Violet"/>
    26                     <GradientStop Offset="1.00" Color="Red"/>
    27                     <GradientStop Offset="1.14" Color="Orange"/>
    28                     <GradientStop Offset="1.28" Color="Yellow"/>
    29                     <GradientStop Offset="1.43" Color="Green"/>
    30                     <GradientStop Offset="1.57" Color="Blue"/>
    31                     <GradientStop Offset="1.71" Color="Indigo"/>
    32                     <GradientStop Offset="1.86" Color="Violet"/>
    33                     <GradientStop Offset="2.00" Color="Red"/>
    34                 </LinearGradientBrush>
    35             </TextBlock.Foreground>
    36         </TextBlock>
    37     </Grid>
    38 </Page>
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  • 原文地址:https://www.cnblogs.com/yunqie/p/6763975.html
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