Windows Phone 8.1 开发入门教程

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"Windows Phone 8.1 Development for Absolute Beginners" 本资源是一份针对初学者的Windows Phone 8.1应用开发教程，由Bob Tabor撰写，并在2014年4月发布。该系列教程旨在帮助那些没有任何编程或Windows Phone开发经验的人入门，提供了全文版的视频系列内容。教程涵盖了从基础到进阶的各种主题，帮助学习者掌握创建Windows Phone应用程序所需的关键技能。 Windows Phone 8.1是微软推出的移动操作系统的一个重要版本，它引入了多项新功能和改进，包括Cortana（微软的个人智能助手），Action Center（通知中心）以及更强大的开发者工具。对于开发者而言，这个平台提供了使用C#和XAML进行UI设计的机会，同时也支持.NET Framework和Silverlight技术。在教程中，Bob Tabor将引导学习者了解如何设置开发环境，安装Visual Studio IDE（集成开发环境），以及创建第一个“Hello, World”应用程序。此外，他还将深入讲解如何处理用户界面、数据存储、网络通信、多媒体集成和应用生命周期管理等核心概念。通过实例和实践项目，学习者可以逐步建立起实际的开发经验。值得注意的是，尽管教程面向初学者，但随着Windows Phone生态系统的演变，一些特定于8.1的功能可能在后来的版本中有所变化或被取代。例如，Windows 10 Mobile发布后，很多开发工具和API得到了更新。因此，学习者在进行实际项目开发时，需要确保参考最新的文档和技术支持。在学习这个教程的过程中，建议同时关注微软的官方开发者文档和社区资源，以便获取最新的开发信息和解决问题的方法。此外，积极参与相关的论坛讨论和编程社区，如Stack Overflow，可以帮助解决在开发过程中遇到的困难，并与其他开发者建立联系。 “Windows Phone 8.1 Development for Absolute Beginners”是初学者踏入移动应用开发领域的理想起点，通过系统学习，不仅可以掌握Windows Phone 8.1应用开发的基本技能，还能为未来在更广泛的Windows生态系统中开发应用打下坚实的基础。

Windows Phone 8.1 Development for Absolute Beginners – Page 15

Inside of the method stub for the clickMeButton_Click event handler, I’ll add one line of code to

set the Text property of our resultTextBlock (the TextBlock we added earlier) to the string value

“Hello World”.

Now I’ll attempt to run the app in debug mode. As we learned in the C# Fundamentals for

Absolute Beginner’s Series, while running our app in debug mode, we can set break points, view

the values of variables, etc. When building a Widows Phone app, there’s one more great

feature: we can see our Phone app working without needing to deploy our app to an actual,

physical Windows Phone. In this case, we’ll select the green triangular Run button … notice

that we’ll be launching our app in the “Emulator 8.1 WVGA 4 inch 512 MB”. What does this

mean? It specifies which physical phone we’ll be emulating, including the screen size and

memory on the phone. As you’ll learn, there are several different emulators we can use that

will allow us to see how our app performs on different hardware:

Windows Phone 8.1 Development for Absolute Beginners – Page 17

Hopefully you were able to see the relationship between the work we did in XAML and the

finished app.

There are some key takeaways from this lesson as we're getting started. First of all, you're going

to be able to leverage your existing knowledge of creating user interfaces and Visual Studio and

apply that to creating Windows Phone Apps. It's easy and it's fun, and certainly there's a lot to

learn here, but there's nothing to be intimidated about. We have the option of making changes

in the most visual way by dragging and dropping items from the Toolbox onto the designer

surface. We see how that created the XAML code, which looks very much like HTML. We'll

learn more about this mysterious XAML syntax in the next lesson. We can also make changes in

the properties window to modify the various attributes of the controls that we see on screen.

Furthermore, just like ASP.NET Web Forms and the Windows Presentation Foundation apps we

created, every “screen”, or rather, every Page has a code behind that's associated with it,

where we can write event handler code to perform operations whenever the user interacts

with our application in a given way.

The phone API provides this rich collection of controls and other options, as well as classes per

form various operations or allow us to retrieve values produced by the Phone’s sensors. As

developers we can tap into that API to enable powerful functionality in our apps. The API is

similar to working with Windows applications in so much that you have classes with properties

and methods and events. Some of those affect the life-cycle of the app, some affect the visual

qualities, like the visual controls or the layout of the app, and then some affect the navigation

from page to page, which we haven't seen yet, but we will discuss in a later lesson. We'll talk

about those in detail in just a little bit and they'll help us to build more complex and complex

applications.

The third takeaway is that, like the Windows Presentation Foundation app example from the C#

Fundamentals for Absolute Beginners Series, Phone apps are composed of a combination of

both XAML and C# syntax. We can see there’s a relationship between the MainPage.xaml and

the MainPage.xaml.cs files because they’re named similarly, and they’re also visually related in

the Solution Explorer. As we’ll learn, these two files actually represent two parts of a whole. In

the MainPage.xamlcs file, notice that this class is named MainPage:

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