03 wp7 application bar
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This document discusses Windows Phone 7 navigation and the application bar. It describes how to use the PhoneApplicationFrame and PhoneApplicationPage classes to structure pages and navigation. It also provides details on implementing the application bar for menus and buttons, including how to handle different orientations and pass parameters between pages using the query string. Methods like NavigationService.Navigate and NavigationService.GoBack are demonstrated for navigating between pages.
03 wp7 application bar
- 1. Windows Phone 7Li Jingnan / Wang Tao2011-7-151
- 2. 2 days2
- 3. aboutanytao| Ethos<ethos:Member id = “Wang Tao” msn = [email protected] = http://weibo.com/anytaorunat = “Senior System Architect”/>Jason | Ethos<ethos:Member id = “Li Jingnan” msn = [email protected]= http://weibo.com/jn1981runat = “SE”/>
- 5. 03 application barWang Tao / 2011-07-15
- 6. session outlineapplication barnavigationoverviewframe & pageapplication baroverviewpage navigationmethodsquery stringgoback
- 7. navigations7
- 8. frame & pagePhoneApplicationFrameTop Container: PhoneApplicationFrameIncluding:Page controlSystem TrayApplication BarPhoneApplicationPageFill content of FramePage inherit from PhoneApplicationPageIncluding:TitleApplication Bar8
- 9. ApplicationBaruse ApplicationBar instead of creating you own menu systemApplicationBarIconButtonup to 4buttonsdon’t fill all 4 slots if not needsize: 48×48ApplicationBarMenuItemup to 5 menusavoid long text9
- 10. Application Bar in xaml10
- 13. page navigation13Silverlight on Windows PhoneSimilar like web pageNavigate by URIStatelessprivate void hyperlinkButton1_Click(object sender, RoutedEventArgs e){ NavigationService.Navigate( new Uri("/SecondPage.xaml", UriKind.RelativeOrAbsolute)); }
- 15. query stringsend query stringprivate void passParam_Click(object sender, RoutedEventArgs e){NavigationService.Navigate(new Uri("/SecondPage.xaml?msg=" + textBox1.Text, UriKind.Relative));}get query stringprotected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e){base.OnNavigatedTo(e); string msg = string.Empty; if (NavigationContext.QueryString.TryGetValue("msg", out msg)) textBlock1.Text = msg; }15
- 16. go backprivate void button1_Click(object sender, RoutedEventArgs e){ NavigationService.GoBack(); }16
- 18. demo18/ app bar/ app bar menu/ landscape / navigation service02 application bar
- 19. practice19build your context menu
- 21. 21
Editor's Notes
- #9: 所有应用程序必须要有一个根Phone Frame可以从它继承自定义
- #10: 在创建之前一定要先在Reference里加入Microsoft.Phone.shell,并且在xaml页面加上xmlns:shell=”clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone.Shell”.菜单栏设计最佳实践在设计菜单栏时要考虑的有以下几点：* 利用系统提供的菜单栏而非自己创建的菜单系统。这样能够使设备上所有应用程序保持统一的用户体验。而且系统提供的菜单栏支持动画和屏幕变换。* 用系统默认的主题而非自定义的颜色。使用自定义颜色会影响图标按钮和菜单动画的效果，而且在某些显示设置下会更耗电。* 菜单栏的透明度可以任意调整，但这里推荐只使用0，0.5和1。* 如果菜单栏的透明度小于1，当前显示页面大小会和屏幕大小一样，菜单栏会遮在它上面。如果透明度为1，显示页面会自动改变大小以适应未被菜单栏遮住的区域。图标按钮设计最佳实践* 用作图标的图片应该是使用了a通道的图片，其背景色为透明，前景色为白色。菜单栏会根据系统主题样式来改变图标的颜色。如果使用了带有背景色的图片，会导致不可预知的问题。* 图标按钮上的圆圈是在运行时由菜单栏加上去的，不需要在源图片里添加圆圈。* 用作图标的图片大小应该是48x48像素。图片内容的大小应该不超出26x26像素的范围，这样才不会被菜单栏加上的圆圈遮住。* 不要设置后退按钮。因为设备上的后退按钮就是专门指定用于页面后退的。* 把最常用的功能设置在图标按钮上。如果某些功能用图标不容易理解，就考虑用菜单项。* 图标按钮上的图片退便在转屏时不要有歧义。* 可以直接用于你的程序中的图标可以从这里下载。 菜单项设计最佳实践* 避免使用超过5个的菜单项，否则用户必须滚动屏幕才能看到。* 在单个菜单项中避免使用过长的文字，否则会引起截断。推荐菜单项内容长度为14到20个英文字符之间。* 为保证良好的用户体验，所有的菜单项和图标按钮的文字都会被变成小写字符。
- #11: Silverlight on Windows Phone基于页面导航模型与Web页面模型相似通过URI标识每个页面每个页面是无状态的
- #12: 当Page1切换到Page21.Page1执行OnNavigatingFrom2.Page1执行OnNavigatedFrom3.Page2执行OnNavigateToOnNavigatingFrom当Page不再是活动页面前OnNavigatedFrom当Page不再是活动页面时OnNavigatedTo当Page被激活时