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用WPF开发仿QQ概念版之--------Loading预加载界面(闪屏窗体)

这次要实现的效果如下图,在程序启动时首先显示:

此窗体(闪屏)相当简单,我只是用一副图作为窗体背景,在程序启动时调用,为了模拟加载,用线程延时演示了一下加载百分比。

窗体(SplashScreen.xaml)的XAML代码如下:

<Window
    
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x
="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class
="WpfQQ.SplashScreen"
     xmlns:local
="clr-namespace:WpfQQ" 
    x:Name
="Window"
    Title
="SplashScreen" Height="97" Width="380" WindowStartupLocation="CenterScreen" WindowStyle="None" 
        Background
="BurlyWood" BorderBrush="BurlyWood" BorderThickness="0" ShowInTaskbar="False" ResizeMode="NoResize">
    
<Grid Margin="0,0,0,0" Height="97" VerticalAlignment="Top" Width="380">
        
<Grid.ColumnDefinitions>
            
<ColumnDefinition/>
            
<ColumnDefinition Width="0*"/>
        
</Grid.ColumnDefinitions>
        
<Image Margin="0,1,0.888,0" Source="loading.png" Stretch="Fill"/>
        
<Label Margin="150,33,31.888,37" x:Name="label2"
               Content
="{Binding Message, Source={x:Static local:MessageListener.Instance}}" Foreground="Black"/>
    
</Grid>
</Window>

其中的label2我们用于显示加载百分比等信息。

在App.xaml.cs中调用:

protected override void OnStartup(StartupEventArgs e)
        {
            Splasher.Splash = new SplashScreen();
            Splasher.ShowSplash();
            for (int i = 0; i < 100; i++)
            {
                MessageListener.Instance.ReceiveMessage(string.Format("Loading {0}%,Please waiting", i+1));
                Thread.Sleep(20);//延时
            }
           
            base.OnStartup(e);
           
        }

 

posted @ 2011-02-24 15:26  碧血黄沙-java、c#  阅读(5319)  评论(3编辑  收藏  举报