.NET 5 開發WPF - 美食應用登入UI設計
阿新 • • 發佈:2020-06-14
原文:.NET 5 開發WPF - 美食應用登入UI設計 中,所以控制元件樣式引用直接在FoodAppLoginView.xaml中新增:
Demo演示:
你的時間寶貴,不想看囉嗦的文字,可直接拉到文末下載原始碼!
1. 新建專案
站長開發環境:
- VS 2019企業版 16.70
- .NET 5 Preview 5
.NET 5 WPF 專案模板和 .NET Core 3.1 WPF 專案模板沒有區別,建立好專案後,NuGet 引入 MaterialDesignThemes 庫:
2.引入樣式
演示Demo就一個xaml檔案和xaml.cs檔案,為了方便後面收集WPF介面設計效果,統一放在了開源專案TerminalMACS.ManagerForWPF
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="pack://application:,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Light.xaml" />
<ResourceDictionary Source="pack://application:,/MaterialDesignThemes.Wpf;component/Themes/MaterialDesignTheme.Defaults.xaml" />
<ResourceDictionary Source="pack://application:,/MaterialDesignColors;component/Themes/Recommended/Primary/MaterialDesignColor.Amber.xaml" />
<ResourceDictionary Source ="pack://application:,/MaterialDesignColors;component/Themes/Recommended/Accent/MaterialDesignColor.Lime.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Window.Resources>
3.控制元件動畫效果
見上面GIF動畫,登入視窗載入時,使用者名稱輸入框、密碼輸入框、記住密碼、右側背景圖片等元素有動畫效果,每個部分程式碼結構類似,比如下面的使用者名稱輸入框程式碼:
<!--#region User name textblox-->
<materialDesign:TransitioningContent Grid.Row="2" Margin="90,20,00,0" HorizontalAlignment="Left">
<materialDesign:TransitioningContent.OpeningEffects>
<materialDesign:TransitionEffect Kind="SlideInFromLeft" Duration="0:0:2"/>
</materialDesign:TransitioningContent.OpeningEffects>
<StackPanel Style="{StaticResource setVisibilityBasedLogin}" Orientation="Horizontal">
<materialDesign:PackIcon Kind="Account" Width="16" Height="16" VerticalAlignment="Center"
Margin="0,5,10,0" Foreground="{Binding ElementName=NameTextBox,Path=BorderBrush}"/>
<TextBox x:Name="NameTextBox" Width="140" materialDesign:HintAssist.Hint="{markup:I18n {x:Static i18NResources:Language.FoodAppLoginView_UserName}}"
Style="{StaticResource MaterialDesignFloatingHintTextBox}"/>
</StackPanel>
</materialDesign:TransitioningContent>
<!--#endregion-->
使用了開源控制元件MD的TransitioningContent元件,其中TransitionEffect的Kind屬性設定控制元件動畫方向。
4. 模擬登入
登入按鈕佈局程式碼:
<!--#region control panel-->
<materialDesign:TransitioningContent Grid.Row="4" Margin="40,0">
<materialDesign:TransitioningContent.OpeningEffects>
<materialDesign:TransitionEffect Kind="SlideInFromBottom" Duration="0:0:2"/>
</materialDesign:TransitioningContent.OpeningEffects>
<StackPanel Style="{StaticResource setVisibilityBasedLogin}" Orientation="Horizontal" HorizontalAlignment="Center">
<CheckBox Content="{markup:I18n {x:Static i18NResources:Language.FoodAppLoginView_RememberMe}}"/>
<Button Style="{StaticResource MaterialDesignRaisedButton}"
Command="{x:Static materialDesign:DialogHost.OpenDialogCommand}"
materialDesign:ButtonAssist.CornerRadius="20"
Width="80" Height="40" Margin="120,0"
Content="{markup:I18n {x:Static i18NResources:Language.FoodAppLoginView_Login}}"/>
</StackPanel>
</materialDesign:TransitioningContent>
<!--#endregion-->
點選登入時,開啟等待對話方塊(點選時綁定了materialDesign:DialogHost.OpenDialogCommand),在等待對話方塊的開啟與關閉事件中做登入邏輯處理。
private async Task<bool> ValidateCreds()
{
// 模擬登入
// 你可以傳送登入資訊到伺服器,得到認證回饋
await Task.Delay(TimeSpan.FromSeconds(2));
Random gen = new Random(DateTime.Now.Millisecond);
int loginProb = gen.Next(100);
return loginProb <= 20;
}
private async void OpenCB_DialogOpened(object sender,MaterialDesignThemes.Wpf.DialogOpenedEventArgs eventArgs)
{
try
{
this.IsJustStarted = true;
this.LoginStatusmsg = "";
bool isLoggedIn = await ValidateCreds();
if (isLoggedIn)
{
// 需要關閉登入對話方塊並顯示主視窗
eventArgs.Session.Close(true);
}
else
{
// 登入失敗,設定false作為引數
eventArgs.Session.Close(false);
}
}
catch (Exception)
{
//throw;
}
}
private void ClosingCB_DialogClosing(object sender,MaterialDesignThemes.Wpf.DialogClosingEventArgs eventArgs)
{
if (eventArgs.Parameter == null)
{
return;
}
IsLoggedIn = (bool)eventArgs.Parameter;
IsJustStarted = false;
if(IsLoggedIn)
{
this.LoginStatusmsg = I18nManager.Instance.Get(I18nResources.Language.FoodAppLoginView_Success).ToString();
}
else
{
this.LoginStatusmsg = I18nManager.Instance.Get(I18nResources.Language.FoodAppLoginView_Fail).ToString();
}
}
等待對話方塊開啟事件中,模擬登入邏輯。
等待對話方塊關閉事件中,做介面響應資訊。
5. 原始碼下載
上面只貼了部分關鍵程式碼,原始碼已放Github中。
參考視訊:WPF Food App Login UI Material Design [Speed Design]
Demo原始碼:FoodAppLoginUI