私はこれを書いた ユーザーコントロール 助けになるかもしれない、それは進行中のバーが回転してメッセージを表示し、現在何かをロードしていることを示すだろう。
<ctr:LoadingPanel x:Name="loadingPanel"
IsLoading="{Binding PanelLoading}"
Message="{Binding PanelMainMessage}"
SubMessage="{Binding PanelSubMessage}"
ClosePanelCommand="{Binding PanelCloseCommand}" />
バインドできる基本的なプロパティがいくつかあります。
これを取得するには：
これをユーザーコントロールに貼り付けます。
<UserControl.Resources>
<Color x:Key="FilledColor" A="255" B="155" R="155" G="155"/>
<Color x:Key="UnfilledColor" A="0" B="155" R="155" G="155"/>
<Style x:Key="BusyAnimationStyle" TargetType="Control">
<Setter Property="Background" Value="#7F000000"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Control">
<ControlTemplate.Resources>
<Storyboard x:Key="Animation0" BeginTime="00:00:00.0" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse0" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation1" BeginTime="00:00:00.2" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse1" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation2" BeginTime="00:00:00.4" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse2" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation3" BeginTime="00:00:00.6" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse3" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation4" BeginTime="00:00:00.8" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse4" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation5" BeginTime="00:00:01.0" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse5" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation6" BeginTime="00:00:01.2" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse6" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation7" BeginTime="00:00:01.4" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse7" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<ControlTemplate.Triggers>
<Trigger Property="IsVisible" Value="True">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource Animation0}" x:Name="Storyboard0" />
<BeginStoryboard Storyboard="{StaticResource Animation1}" x:Name="Storyboard1"/>
<BeginStoryboard Storyboard="{StaticResource Animation2}" x:Name="Storyboard2"/>
<BeginStoryboard Storyboard="{StaticResource Animation3}" x:Name="Storyboard3"/>
<BeginStoryboard Storyboard="{StaticResource Animation4}" x:Name="Storyboard4"/>
<BeginStoryboard Storyboard="{StaticResource Animation5}" x:Name="Storyboard5"/>
<BeginStoryboard Storyboard="{StaticResource Animation6}" x:Name="Storyboard6"/>
<BeginStoryboard Storyboard="{StaticResource Animation7}" x:Name="Storyboard7"/>
</Trigger.EnterActions>
<Trigger.ExitActions>
<StopStoryboard BeginStoryboardName="Storyboard0"/>
<StopStoryboard BeginStoryboardName="Storyboard1"/>
<StopStoryboard BeginStoryboardName="Storyboard2"/>
<StopStoryboard BeginStoryboardName="Storyboard3"/>
<StopStoryboard BeginStoryboardName="Storyboard4"/>
<StopStoryboard BeginStoryboardName="Storyboard5"/>
<StopStoryboard BeginStoryboardName="Storyboard6"/>
<StopStoryboard BeginStoryboardName="Storyboard7"/>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
<Grid>
<Canvas Height="60" Width="60">
<Canvas.Resources>
<Style TargetType="Ellipse">
<Setter Property="Width" Value="15"/>
<Setter Property="Height" Value="15" />
<Setter Property="Fill" Value="#009B9B9B" />
</Style>
</Canvas.Resources>
<Ellipse x:Name="ellipse0" Canvas.Left="1.75" Canvas.Top="21"/>
<Ellipse x:Name="ellipse1" Canvas.Top="7" Canvas.Left="6.5"/>
<Ellipse x:Name="ellipse2" Canvas.Left="20.5" Canvas.Top="0.75"/>
<Ellipse x:Name="ellipse3" Canvas.Left="34.75" Canvas.Top="6.75"/>
<Ellipse x:Name="ellipse4" Canvas.Left="40.5" Canvas.Top="20.75" />
<Ellipse x:Name="ellipse5" Canvas.Left="34.75" Canvas.Top="34.5"/>
<Ellipse x:Name="ellipse6" Canvas.Left="20.75" Canvas.Top="39.75"/>
<Ellipse x:Name="ellipse7" Canvas.Top="34.25" Canvas.Left="7" />
<Ellipse Width="39.5" Height="39.5" Canvas.Left="8.75" Canvas.Top="8" Visibility="Hidden"/>
</Canvas>
<Label Content="{Binding Path=Text}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
<Control Style="{StaticResource BusyAnimationStyle}"/>
各楕円でクールな消失効果を得るには、各ColorAnimationUsingKeyFrames要素の後に次を追加します。正しい楕円を指すようにしてください。
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipse0" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="ellipse0" Storyboard.TargetProperty="Width" >
<DoubleAnimationUsingKeyFrames.KeyFrames>
<SplineDoubleKeyFrame KeyTime="00:00:00.0" Value="15" />
<SplineDoubleKeyFrame KeyTime="00:00:01.0" Value="12" />
<SplineDoubleKeyFrame KeyTime="00:00:01.6" Value="0" />
</DoubleAnimationUsingKeyFrames.KeyFrames>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetName="ellipse0" Storyboard.TargetProperty="Height" >
<DoubleAnimationUsingKeyFrames.KeyFrames>
<SplineDoubleKeyFrame KeyTime="00:00:00.0" Value="15" />
<SplineDoubleKeyFrame KeyTime="00:00:01.0" Value="12" />
<SplineDoubleKeyFrame KeyTime="00:00:01.6" Value="0" />
</DoubleAnimationUsingKeyFrames.KeyFrames>
</DoubleAnimationUsingKeyFrames>
非常に単純な「プラグアンドプレイ」スピナーは、 Font Awesome Wpf Package （ Spinning icons ）の回転アイコンの1つです。
使い方は非常に簡単で、nugetパッケージをインストールするだけです。
PM> Install-Package FontAwesome.WPF
次に、名前空間への参照を追加します
xmlns:fa="http://schemas.fontawesome.io/icons/"
imageAwesomeコントロールを使用します。 Spin = "True"プロパティを設定し、「Spinner」、「Refresh」、「Cog」、「CircleOutlinedNotched」アイコンのいずれかを選択します。スケーラブルであり、幅と高さを設定することでサイズを変更できます。
<Window x:Class="Example.FontAwesome.WPF.Single"
xmlns="http://schemas.Microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.Microsoft.com/winfx/2006/xaml"
xmlns:fa="http://schemas.fontawesome.io/icons/"
Title="Single" Height="300" Width="300">
<Grid Margin="20">
<fa:ImageAwesome Icon="Refresh" Spin="True" Height="48" Width="48" />
</Grid>
</Window>
画像付き
回転アイコンのオプションの視覚的要約。 Screen To Gif を使用して記録されます。
Font-Awesome-WPF
NuGetを介してインストールします。
PM> Install-Package FontAwesome.WPF
次のようになります。
XAML：
<fa:ImageAwesome Icon="Spinner" Spin="True" SpinDuration="4" />
写真のアイコンは、Spinner、CircleOutlineNotch、Refresh、およびCogです。 他の多く があります。
@ HAdesのメソッド
XAMLのコピー/貼り付け。
拡張WPFツールキットのBusyIndicator を確認してください。
これは、幅、高さ、および楕円サイズをパラメーター化するために@HAdesによって指定されたコードの更新です。
この実装は、必要な角度、幅、および高さをその場で自動的に計算する必要があります。
ユーザーコントロールはそれ自体（コードビハインド）にバインドされ、すべての計算を処理します。
[〜＃〜] xaml [〜＃〜]
<UserControl x:Class="WpfApplication2.Spinner"
xmlns="http://schemas.Microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.Microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.Microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:WpfApplication2"
mc:Ignorable="d"
DataContext="{Binding RelativeSource={RelativeSource Self}}"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<Color x:Key="FilledColor" A="255" B="155" R="155" G="155"/>
<Color x:Key="UnfilledColor" A="0" B="155" R="155" G="155"/>
<Style x:Key="BusyAnimationStyle" TargetType="Control">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Control">
<ControlTemplate.Resources>
<Storyboard x:Key="Animation0" BeginTime="00:00:00.0" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseN" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation1" BeginTime="00:00:00.2" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseNE" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation2" BeginTime="00:00:00.4" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseE" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation3" BeginTime="00:00:00.6" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseSE" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation4" BeginTime="00:00:00.8" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseS" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation5" BeginTime="00:00:01.0" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseSW" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation6" BeginTime="00:00:01.2" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseW" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="Animation7" BeginTime="00:00:01.4" RepeatBehavior="Forever">
<ColorAnimationUsingKeyFrames Storyboard.TargetName="ellipseNW" Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)">
<SplineColorKeyFrame KeyTime="00:00:00.0" Value="{StaticResource FilledColor}"/>
<SplineColorKeyFrame KeyTime="00:00:01.6" Value="{StaticResource UnfilledColor}"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<ControlTemplate.Triggers>
<Trigger Property="IsVisible" Value="True">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource Animation0}" x:Name="Storyboard0" />
<BeginStoryboard Storyboard="{StaticResource Animation1}" x:Name="Storyboard1"/>
<BeginStoryboard Storyboard="{StaticResource Animation2}" x:Name="Storyboard2"/>
<BeginStoryboard Storyboard="{StaticResource Animation3}" x:Name="Storyboard3"/>
<BeginStoryboard Storyboard="{StaticResource Animation4}" x:Name="Storyboard4"/>
<BeginStoryboard Storyboard="{StaticResource Animation5}" x:Name="Storyboard5"/>
<BeginStoryboard Storyboard="{StaticResource Animation6}" x:Name="Storyboard6"/>
<BeginStoryboard Storyboard="{StaticResource Animation7}" x:Name="Storyboard7"/>
</Trigger.EnterActions>
<Trigger.ExitActions>
<StopStoryboard BeginStoryboardName="Storyboard0"/>
<StopStoryboard BeginStoryboardName="Storyboard1"/>
<StopStoryboard BeginStoryboardName="Storyboard2"/>
<StopStoryboard BeginStoryboardName="Storyboard3"/>
<StopStoryboard BeginStoryboardName="Storyboard4"/>
<StopStoryboard BeginStoryboardName="Storyboard5"/>
<StopStoryboard BeginStoryboardName="Storyboard6"/>
<StopStoryboard BeginStoryboardName="Storyboard7"/>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
<Grid>
<Canvas>
<Canvas.Resources>
<Style TargetType="Ellipse">
<Setter Property="Width" Value="{Binding Path=EllipseSize}"/>
<Setter Property="Height" Value="{Binding Path=EllipseSize}" />
<Setter Property="Fill" Value="Transparent" />
</Style>
</Canvas.Resources>
<Ellipse x:Name="ellipseN" Canvas.Left="{Binding Path=EllipseN.Left}" Canvas.Top="{Binding Path=EllipseN.Top}"/>
<Ellipse x:Name="ellipseNE" Canvas.Left="{Binding Path=EllipseNE.Left}" Canvas.Top="{Binding Path=EllipseNE.Top}"/>
<Ellipse x:Name="ellipseE" Canvas.Left="{Binding Path=EllipseE.Left}" Canvas.Top="{Binding Path=EllipseE.Top}"/>
<Ellipse x:Name="ellipseSE" Canvas.Left="{Binding Path=EllipseSE.Left}" Canvas.Top="{Binding Path=EllipseSE.Top}"/>
<Ellipse x:Name="ellipseS" Canvas.Left="{Binding Path=EllipseS.Left}" Canvas.Top="{Binding Path=EllipseS.Top}"/>
<Ellipse x:Name="ellipseSW" Canvas.Left="{Binding Path=EllipseSW.Left}" Canvas.Top="{Binding Path=EllipseSW.Top}"/>
<Ellipse x:Name="ellipseW" Canvas.Left="{Binding Path=EllipseW.Left}" Canvas.Top="{Binding Path=EllipseW.Top}"/>
<Ellipse x:Name="ellipseNW" Canvas.Left="{Binding Path=EllipseNW.Left}" Canvas.Top="{Binding Path=EllipseNW.Top}"/>
</Canvas>
<Label Content="{Binding Path=Text}" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
<Border>
<Control Style="{StaticResource BusyAnimationStyle}"/>
</Border>
コードビハインド（C＃）
using System;
using System.Windows;
using System.Windows.Controls;
namespace WpfApplication2
{
/// <summary>
/// Interaction logic for Spinner.xaml
/// </summary>
public partial class Spinner : UserControl
{
public int EllipseSize { get; set; } = 8;
public int SpinnerHeight { get; set; } = 0;
public int SpinnerWidth { get; set; } = 0;
// start positions
public EllipseStartPosition EllipseN { get; private set; }
public EllipseStartPosition EllipseNE { get; private set; }
public EllipseStartPosition EllipseE { get; private set; }
public EllipseStartPosition EllipseSE { get; private set; }
public EllipseStartPosition EllipseS { get; private set; }
public EllipseStartPosition EllipseSW { get; private set; }
public EllipseStartPosition EllipseW { get; private set; }
public EllipseStartPosition EllipseNW { get; private set; }
public Spinner()
{
InitializeComponent();
}
private void initialSetup()
{
float horizontalCenter = (float)(SpinnerWidth / 2);
float verticalCenter = (float)(SpinnerHeight / 2);
float distance = (float)Math.Min(SpinnerHeight, SpinnerWidth) /2;
double angleInRadians = 44.8;
float cosine = (float)Math.Cos(angleInRadians);
float sine = (float)Math.Sin(angleInRadians);
EllipseN = newPos(left: horizontalCenter, top: verticalCenter - distance);
EllipseNE = newPos(left: horizontalCenter + (distance * cosine), top: verticalCenter - (distance * sine));
EllipseE = newPos(left: horizontalCenter + distance, top: verticalCenter);
EllipseSE = newPos(left: horizontalCenter + (distance * cosine), top: verticalCenter + (distance * sine));
EllipseS = newPos(left: horizontalCenter, top: verticalCenter + distance);
EllipseSW = newPos(left: horizontalCenter - (distance * cosine), top: verticalCenter + (distance * sine));
EllipseW = newPos(left: horizontalCenter - distance, top: verticalCenter);
EllipseNW = newPos(left: horizontalCenter - (distance * cosine), top: verticalCenter - (distance * sine));
}
private EllipseStartPosition newPos(float left, float top)
{
return new EllipseStartPosition() { Left = left, Top = top };
}
protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e)
{
if(e.Property.Name == "Height")
{
SpinnerHeight = Convert.ToInt32(e.NewValue);
}
if (e.Property.Name == "Width")
{
SpinnerWidth = Convert.ToInt32(e.NewValue);
}
if(SpinnerHeight > 0 && SpinnerWidth > 0)
{
initialSetup();
}
base.OnPropertyChanged(e);
}
}
public struct EllipseStartPosition
{
public float Left { get; set; }
public float Top { get; set; }
}
}
使用例
<Window x:Class="WpfApplication2.MainWindow"
xmlns="http://schemas.Microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.Microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.Microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WpfApplication2"
xmlns:animated="WpfApplication2.MainWindow"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<StackPanel Background="DarkGoldenrod" Width="200" Height="200" VerticalAlignment="Top" HorizontalAlignment="Left" >
<Button Height="35">
<Button.Content >
<DockPanel LastChildFill="True" Height="NaN" Width="NaN" HorizontalAlignment="Left">
<local:Spinner EllipseSize="4" DockPanel.Dock="Left" HorizontalAlignment="Left" Margin="0,0,10,5" Height="16" Width="16"/>
<TextBlock Text="Cancel" VerticalAlignment="Center"/>
</DockPanel>
</Button.Content>
</Button>
</StackPanel>
</Window>
以下は、すべてxamlソリューションの例です。ビューモデルの「IsWorking」ブール値にバインドして、コントロールを表示し、アニメーションを開始します。
<UserControl x:Class="MainApp.Views.SpinnerView"
xmlns="http://schemas.Microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.Microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.Microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<BooleanToVisibilityConverter x:Key="BoolToVisConverter"/>
</UserControl.Resources>
<StackPanel Orientation="Horizontal" Margin="5"
Visibility="{Binding IsWorking, Converter={StaticResource BoolToVisConverter}}">
<Label>Wait...</Label>
<Ellipse x:Name="spinnerEllipse"
Width="20" Height="20">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="1,1" EndPoint="0,0" >
<GradientStop Color="White" Offset="0"/>
<GradientStop Color="CornflowerBlue" Offset="1"/>
</LinearGradientBrush>
</Ellipse.Fill>
<Ellipse.RenderTransform>
<RotateTransform x:Name="SpinnerRotate" CenterX="10" CenterY="10"/>
</Ellipse.RenderTransform>
<Ellipse.Style>
<Style TargetType="Ellipse">
<Style.Triggers>
<DataTrigger Binding="{Binding IsWorking}" Value="True">
<DataTrigger.EnterActions>
<BeginStoryboard x:Name="SpinStoryboard">
<Storyboard TargetProperty="RenderTransform.Angle" >
<DoubleAnimation
From="0" To="360" Duration="0:0:01"
RepeatBehavior="Forever" />
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
<DataTrigger.ExitActions>
<StopStoryboard BeginStoryboardName="SpinStoryboard"></StopStoryboard>
</DataTrigger.ExitActions>
</DataTrigger>
</Style.Triggers>
</Style>
</Ellipse.Style>
</Ellipse>
</StackPanel>
列挙型を使用して、ViewModelの状態を示します
public enum ViewModeType
{
Default,
Busy
//etc.
}
次に、ViewModels Baseクラスでプロパティを使用します
public ViewModeType ViewMode
{
get { return this.viewMode; }
set
{
if (this.viewMode != value)
{
this.viewMode = value;
//You should notify property changed here
}
}
}
ビューでViewModeをトリガーし、ビジーの場合は、busyindicatorを表示します。
<Trigger Property="ViewMode" Value="Busy">
<!-- Show BusyIndicator -->
</Trigger>
WPFでは、次のことが簡単にできるようになりました。
Mouse.OverrideCursor = System.Windows.Input.Cursors.Wait; // set the cursor to loading spinner
Mouse.OverrideCursor = System.Windows.Input.Cursors.Arrow; // set the cursor back to arrow
Githubのこのレポは非常にうまく機能しているようです：
https://github.com/blackspikeltd/Xaml-Spinners-WPF
スピナーはすべて軽量で、必要な場所に簡単に配置できます。リポジトリには、それらの使用方法を示すサンプルプロジェクトが含まれています。
たくさんのロジックを持つ厄介なコードビハインドもありません。 MVVMのサポートが必要な場合は、これらを取得して、Visibilityバインディングを備えたグリッドに投げ込むことができます。
追加のコントロールやライブラリを使用せずに、画像のコントロールと変換のみを使用して実行できます。
<Image
Source="/images/spinner.png"
Width="100"
Height="100"
RenderTransformOrigin="0.5, 0.5" Visibility="{Binding IsLoading, Converter={StaticResource BooleanToVisibilityConverter}}">
<Image.RenderTransform>
<RotateTransform x:Name="noFreeze" />
</Image.RenderTransform>
<Image.Triggers>
<EventTrigger RoutedEvent="Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetProperty="(Image.RenderTransform).(RotateTransform.Angle)"
To="360" Duration="0:0:1" RepeatBehavior="Forever" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Image.Triggers>
</Image>
置換/images/spinner.png画像を使用します。変化する To="360"からTo="-360"反時計回りに回転させたい場合。 Duration="0:0:1"は1回転あたり1秒に相当します。
CircularProgressBarBlue.xaml
<UserControl
x:Class="CircularProgressBarBlue"
xmlns="http://schemas.Microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.Microsoft.com/winfx/2006/xaml"
Background="Transparent"
Name="progressBar">
<UserControl.Resources>
<Storyboard x:Key="spinning" >
<DoubleAnimation
Storyboard.TargetName="SpinnerRotate"
Storyboard.TargetProperty="(RotateTransform.Angle)"
From="0"
To="360"
RepeatBehavior="Forever"/>
</Storyboard>
</UserControl.Resources>
<Grid
x:Name="LayoutRoot"
Background="Transparent"
HorizontalAlignment="Center"
VerticalAlignment="Center">
<Image Source="C:\SpinnerImage\BlueSpinner.png" RenderTransformOrigin="0.5,0.5" VerticalAlignment="Stretch" HorizontalAlignment="Stretch">
<Image.RenderTransform>
<RotateTransform
x:Name="SpinnerRotate"
Angle="0"/>
</Image.RenderTransform>
</Image>
</Grid>
CircularProgressBarBlue.xaml.cs
using System;
using System.Windows;
using System.Windows.Media.Animation;
/// <summary>
/// Interaction logic for CircularProgressBarBlue.xaml
/// </summary>
public partial class CircularProgressBarBlue
{
private Storyboard _sb;
public CircularProgressBarBlue()
{
InitializeComponent();
StartStoryBoard();
IsVisibleChanged += CircularProgressBarBlueIsVisibleChanged;
}
void CircularProgressBarBlueIsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
{
if (_sb == null) return;
if (e != null && e.NewValue != null && (((bool)e.NewValue)))
{
_sb.Begin();
_sb.Resume();
}
else
{
_sb.Stop();
}
}
void StartStoryBoard()
{
try
{
_sb = (Storyboard)TryFindResource("spinning");
if (_sb != null)
_sb.Begin();
}
catch
{ }
}
}
@Menolによって投稿されたカスタマイズされたスピナーには、スピナーが1つのドットのサイズだけ右下に移動するという小さな問題がありました。コードを更新して、ドットの半分を減算することでこのオフセットを補正するようにしました。
更新されたコードは次のとおりです。
private void initialSetup()
{
float horizontalCenter = (float)(SpinnerWidth / 2);
float verticalCenter = (float)(SpinnerHeight / 2);
float distance = (float)Math.Min(SpinnerHeight, SpinnerWidth) / 2;
float dotComp = (float)(EllipseSize / 2);
double angleInRadians = 44.8;
float cosine = (float)Math.Cos(angleInRadians);
float sine = (float)Math.Sin(angleInRadians);
EllipseN = newPos(left: horizontalCenter - dotComp, top: verticalCenter - distance - dotComp);
EllipseNE = newPos(left: horizontalCenter + (distance * cosine) - dotComp, top: verticalCenter - (distance * sine) - dotComp);
EllipseE = newPos(left: horizontalCenter + distance - dotComp, top: verticalCenter - dotComp);
EllipseSE = newPos(left: horizontalCenter + (distance * cosine) - dotComp, top: verticalCenter + (distance * sine) - dotComp);
EllipseS = newPos(left: horizontalCenter - dotComp, top: verticalCenter + distance - dotComp);
EllipseSW = newPos(left: horizontalCenter - (distance * cosine) - dotComp, top: verticalCenter + (distance * sine) - dotComp);
EllipseW = newPos(left: horizontalCenter - distance - dotComp, top: verticalCenter - dotComp);
EllipseNW = newPos(left: horizontalCenter - (distance * cosine) - dotComp, top: verticalCenter - (distance * sine) - dotComp);
}