Windows App开发之更多技巧

最后更新于:2022-04-01 16:23:49

# 使用华丽丽的字体 所有的TextBlock等都用的默认字体,大家是否会感觉很千篇一律很枯燥呢?对于FontFamily,我们见过一些可以用的字体,但这个属性不像Foreground等有下拉框,所以我们在应用中见过的许多有意思的字体却没法用,因为不知道名字。 ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a034028a350.jpg "") ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a03402a4b0d.jpg "") 代码的话也贴张图示意一下吧。 ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a03402c5c7e.jpg "") 好了,我就不再多说废话啦,名字都是从这里来的——>>>>> ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a03403003ac.jpg "") 注意: 1)除了微软雅黑外,大部分字体只能在Windows 8/8.1/10上体现出来,在WP8/8.1上无法发挥作用。这是因为这个字体库太大,微软没有放到手机上。 ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a03403238c5.jpg "") 2)大部分中文字体可以作用在英文文本上,而英文字体则无法作用在中文文本上。(经验之谈,如果特例,请告知,谢谢。) # DatePickerFlyout等的使用 这一篇讲解在WP上DataPickerFlyout和TimePickerFlyout的使用,但它们只放在WP上哦,也正因此才将这一节放到最后一章的。 ~~~ <Grid Background="Blue"> <Grid.RowDefinitions> <RowDefinition Height="*"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <StackPanel Grid.Row="0" Margin="12" Orientation="Vertical"> <Button Content="Let's Show DatePicker" > <Button.Flyout> <DatePickerFlyout x:Name="datePickerFlyout" Title="选择日期" DatePicked="datePickerFlyout_DatePicked" Closed="datePickerFlyout_Closed" /> </Button.Flyout> </Button> <DatePicker Header="Date" Margin="4" /> <TextBlock Name="textBlockDate" FontSize="20" Margin="4" /> </StackPanel> <StackPanel Grid.Row="1" Margin="12" Orientation="Vertical"> <Button Content="Let's Show TimePicker" > <Button.Flyout> <TimePickerFlyout x:Name="timePickerFlyout" Title="选择时间" TimePicked="timePickerFlyout_TimePicked" Closed="timePickerFlyout_Closed" /> </Button.Flyout> </Button> <TimePicker Header="Time" Margin="4" /> <TextBlock Name="textBlockTime" FontSize="20" Margin="4"/> </StackPanel> </Grid> ~~~ 后台事件如下: ~~~ public sealed partial class MainPage : Page { public MainPage() { this.InitializeComponent(); this.NavigationCacheMode = NavigationCacheMode.Required; } protected override void OnNavigatedTo(NavigationEventArgs e) { // 令天数加1 datePickerFlyout.Date = DateTimeOffset.Now.AddDays(1); // 设置可选择的最大年份和最小年份 datePickerFlyout.MinYear = DateTimeOffset.Now.AddYears(-100); datePickerFlyout.MaxYear = DateTimeOffset.Now.AddYears(100); // 此处也可以令“年“、”月“、”日“中的某一个不显示 datePickerFlyout.YearVisible = true; datePickerFlyout.MonthVisible = true; datePickerFlyout.DayVisible = true; // 选择的历法 // (Gregorian 公历, Hebrew 希伯来历, Hijri 回历, Japanese 日本历, Julian 罗马儒略历, Korean 朝鲜历, Taiwan 台湾历, Thai 泰国历, UmAlQura 古兰经历) datePickerFlyout.CalendarIdentifier = CalendarIdentifiers.Gregorian; // Time - TimePicker 控件当前显示的时间 timePickerFlyout.Time = new TimeSpan(18, 0, 0); // 设置TimePickerFlyout的分钟选择框内数字的增幅 timePickerFlyout.MinuteIncrement=2; //设置为24小时制,也可以为12小时制 timePickerFlyout.ClockIdentifier = ClockIdentifiers.TwentyFourHour; } // 当用户点击DatePicker的完成按钮后激活该事件 private void datePickerFlyout_DatePicked(DatePickerFlyout sender, DatePickedEventArgs args) { textBlockDate.Text = args.NewDate.ToString("yyyy-MM-dd hh:mm:ss"); textBlockDate.Text += Environment.NewLine; } // 当用户点击DatePicker的取消按钮或手机的返回按钮后激活该事件,当点击完成按钮后也将调用该事件 private void datePickerFlyout_Closed(object sender, object e) { textBlockDate.Text += "You just close the DatePickerFlyout."; textBlockDate.Text += Environment.NewLine; } // 当用户点击TimePicker的完成按钮后激活该事件 private void timePickerFlyout_TimePicked(TimePickerFlyout sender, TimePickedEventArgs args) { // e.OldTime - 原时间 // e.NewTime - 新时间 textBlockTime.Text = args.NewTime.ToString("c"); textBlockTime.Text += Environment.NewLine; } // 当用户点击TimePicker的取消按钮或手机的返回按钮后激活该事件,当点击完成按钮后也将调用该事件 private void timePickerFlyout_Closed(object sender, object e) { textBlockTime.Text += "You just close the TimePickerFlyout."; textBlockTime.Text += Environment.NewLine; } } ~~~ 简单的讲,Flyout有两种创建方式,一种就是上面的通过Button的Flyout属性。另一种是通过FlyoutBase.AttachedFlyout属性给任何的FrameworkElement对象添加它。 关于FrameworkElement的更多知识,可以访问以下链接。 [https://msdn.microsoft.com/zh-cn/library/vstudio/system.windows.frameworkelement(v=vs.100).aspx](https://msdn.microsoft.com/zh-cn/library/vstudio/system.windows.frameworkelement(v=vs.100).aspx) [https://msdn.microsoft.com/en-us/library/system.windows.frameworkelement(v=vs.110).aspx](https://msdn.microsoft.com/en-us/library/system.windows.frameworkelement(v=vs.110).aspx) 而Flyout则有6种不同的类型:Flyout、DatePickerFlyout、ListPickerFlyout、MenuFlyout、TimePickerFlyout。 时间紧迫就直接Show代码了。 XAML代码: ~~~ <Page.Resources> <Style TargetType="Button"> <Setter Property="Margin" Value="12"/> <Setter Property="FontSize" Value="20"/> <Setter Property="Foreground" Value="White"/> <Setter Property="Background" Value="Green"/> </Style> </Page.Resources> <Grid Background="Blue"> <StackPanel Orientation="Vertical"> <!-- Flyout --> <Button Content="Let's Show Flyout"> <Button.Flyout> <Flyout> <StackPanel > <TextBox PlaceholderText="What do you want to say?"/> <Button HorizontalAlignment="Right" Content="Yup"/> </StackPanel> </Flyout> </Button.Flyout> </Button> <!-- DatePickerFlyout --> <Button Content="Let's Show DatePicker" HorizontalAlignment="Right"> <Button.Flyout> <DatePickerFlyout Title="You need to choose Date: " DatePicked="DatePickerFlyout_DatePicked"/> </Button.Flyout> </Button> <!-- ListPickerFlyout --> <Button Content="Let's Show ListPicker" > <Button.Flyout> <ListPickerFlyout x:Name="listPickerFlyout" Title="选择操作系统:" ItemsPicked="listPickerFlyout_ItemsPicked" > <ListPickerFlyout.ItemTemplate> <DataTemplate> <TextBlock Text="{Binding}" FontSize="30"></TextBlock> </DataTemplate> </ListPickerFlyout.ItemTemplate> </ListPickerFlyout> </Button.Flyout> </Button> <!-- MenuFlyout --> <Button x:Name="menuFlyoutButton" Content="Let's Show MenuFlyout" HorizontalAlignment="Right"> <Button.Flyout > <MenuFlyout> <MenuFlyoutItem Text="You just say yes?" Click="MenuFlyoutItem_Click"/> <MenuFlyoutItem Text="You just say no?" Click="MenuFlyoutItem_Click"/> <MenuFlyoutItem Text="You say nothing..." Click="MenuFlyoutItem_Click"/> </MenuFlyout> </Button.Flyout> </Button> <!-- PickerFlyout --> <Button Content="Let's Show Picker" > <Button.Flyout> <PickerFlyout Confirmed="PickerFlyout_Confirmed" ConfirmationButtonsVisible="True"> <TextBlock Text="Are you ok?" FontSize="30" Margin="0 100 0 0"/> </PickerFlyout> </Button.Flyout> </Button> <!-- TimePickerFlyout --> <Button Content="Let's Show TimePicker" HorizontalAlignment="Right"> <Button.Flyout> <TimePickerFlyout Title="You need to choose Time: " TimePicked="TimePickerFlyout_TimePicked"/> </Button.Flyout> </Button> <!-- FlyoutBase --> <TextBlock Text="Game Over" Margin="12" Foreground="Wheat" Tapped="TextBlock_Tapped" FontSize="20"> <FlyoutBase.AttachedFlyout> <Flyout> <TextBox Text="哎哟,不错哦!"/> </Flyout> </FlyoutBase.AttachedFlyout> </TextBlock> </StackPanel> </Grid> ~~~ 后台C#代码: ~~~ public sealed partial class MainPage : Page { public MainPage() { this.InitializeComponent(); // 绑定List数据到ListPickerFlyout listPickerFlyout.ItemsSource = new List<string> { "Windows 10", "Windows 8/8.1", "Windows 7", "Windows Vista", "Windows XP","Others" }; } // DatePickerFlyout的日期选中事件,此处事件内有是包含日期的MessageDialog控件 private async void DatePickerFlyout_DatePicked(DatePickerFlyout sender, DatePickedEventArgs args) { await new MessageDialog(args.NewDate.ToString()).ShowAsync(); } // ListPickerFlyout的选中事件,选择列表中的一项后会以弹窗的方式显示出来 private async void listPickerFlyout_ItemsPicked(ListPickerFlyout sender, ItemsPickedEventArgs args) { if (sender.SelectedItem != null) { await new MessageDialog("You choose: " + sender.SelectedItem.ToString()).ShowAsync(); } } // MenuFlyout的菜单选项的点击事件,将选择的本文赋值给Content private void MenuFlyoutItem_Click(object sender, RoutedEventArgs e) { menuFlyoutButton.Content = (sender as MenuFlyoutItem).Text; } // PickerFlyout的确认事件,此处事件内有是包含字符串的MessageDialog控件 private async void PickerFlyout_Confirmed(PickerFlyout sender, PickerConfirmedEventArgs args) { await new MessageDialog("You choose ok").ShowAsync(); } // TimePickerFlyout的时间选中事件,此处事件内有是包含所选时间的MessageDialog控件 private async void TimePickerFlyout_TimePicked(TimePickerFlyout sender, TimePickedEventArgs args) { await new MessageDialog(args.NewTime.ToString()).ShowAsync(); } // 通过FlyoutBase.ShowAttachedFlyout方法来展示出Flyout控件 private void TextBlock_Tapped(object sender, TappedRoutedEventArgs e) { FrameworkElement element = sender as FrameworkElement; if (element != null) { FlyoutBase.ShowAttachedFlyout(element); } } } ~~~ 好了代码就到这里了,来几张截图。 ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a034033d937.jpg "") ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a034035ab8a.jpg "") ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a034037589d.jpg "") ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a034038cc0a.jpg "") ![这里写图片描述](https://docs.gechiui.com/gc-content/uploads/sites/kancloud/2016-08-02_57a03403a31ca.jpg "")
';