Windows Phone Guide for Android Application Developers Table of Content
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- Navigate this page:
- Blend for Visual Studio
- Editing Code
- IntelliSense in Visual Studio
- Code Snippets in Visual Studio
Tools for designingThe Windows Phone 8 developer toolset includes two UI design tools: Visual Studio UI Designer Blend for Visual Studio Compared to Eclipse ADT UI plugin, Visual Studio UI design tool is much simpler and richer. Android application developers migrating to Windows Phone 8 developer tools will find the task of designing an application UI much easier. The main page for our ShoppingList solution, MainPage.xaml, is already opened in the Visual Studio UI designer tool for editing (shown above). Let us change the title of the application, as well as the title of the current page. Right click on the title, “MY APPLICATION” and select Properties. In the properties window, select Text and type “SHOPPING LIST.” Similarly, change the title of the page by typing “my list” in the Text property of the title. Let us design the interface of the main page of the application. 
Update the Textbox’s Text property to delete any existing entry. In the Properties window for the textbox, enter “txtItem” in the name field to set the Name of the text box to txtItem. The properties pane in the VS UI is in sync with the XAML code in the code editor window. You can set properties for controls manually in XAML or set them in the UI using properties panel. Resize the text box by dragging its lower right corner so that its width is 300. Drag a Button to the right of the TextBox. Change the button’s Content property to “Add”, and its Name to “btnAdd”. Resize the button so that its width is 140. Drag another TextBox and place it underneath the txtItem textbox. Resize the new TextBox so that it covers the rest of the phone screen. Update the Name of the new TextBox to “txtList”. Update the Text property of the new TextBox to “Nothing here yet!” At this point, your application should look something like this:
Click F5, or Debug and Start Debugging, to compile the application and launch it. This will start the Windows Phone 8 emulator, deploy the ShoppingList application and run it. You can click on Add, but nothing will happen as we have not written any logic yet.
You will need to use Visual Studio to code your application logic, but you can create the UI in VS UI or Blend. Both tools include the same control set that provides accurate fidelity to their run time visual representation, making it easy to visualize the application. Editing CodeVisual Studio has a simple to use, full-featured, configurable source editor. The editor has various features that are familiar to Eclipse users. These include flexible search, rich editing, code formatting, and the ability to outline/hide code. Let us now proceed to add some logic to our application. :
string tStr = txtItem.Text; Unlike Android where objects must be dereferenced in Java using getViewById, in XAML, objects created in XAML are accessible in code-behind C# or VB files. The specified x:Name or Name attribute of a XAML object becomes the name of a field that is created in the underlying code when XAML is processed. This allows us to access the textbox using txtItem, its x:Name attribute. IntelliSense in Visual StudioWhen you enter "t" for "txtItem", Visual Studio displays the auto-completion dialog box. The Visual Studio equivalent for Eclipse auto-completion content assistant is called Intellisense. 
if (!string.IsNullOrEmpty(tStr)) When you type "string", Visual Studio displays the auto-completion dialog box. When you type "Is", Visual Studio displays the class methods of the String class. As you see below, it provides a synopsis of the IsNullOrEmpty method. 
IntelliSense has a rich feature set. It uses history, code context, and .NET reflection for intelligent auto-completion. IntelliSense can suggest and complete variable names, parameters, classes, and method names. IntelliSense can also generate appropriate code where needed, as shown in the code below: 
To complete the event hookup, it will also generate an empty stub for the event handler, in this case, the button1_click method. 
You will find the generated event handler in the C# code void button1_Click(object sender, RoutedEventArgs e) { throw new NotImplementedException(); } The default code would throw an exception if you forgot to implement necessary logic for this handler.Subsequently, we will implement the logic to handle the button click. Code Snippets in Visual StudioVisual Studio provides another very useful feature called Code Snippets, similar to code templates in Eclipse, allowing you to insert code fragments with a few clicks. Visual Studio contains a large number of snippets and developers can create their own library of snippets. They can also be indexed and searched using user defined terms. Type ctrl+k ctrl+x to bring up the Insert Snippet prompt. Select Visual C#, followed by “i” to select a code snippet for “if statement”, which will insert an if-statement in the code. 
The inserted snippet identifies the parts the user needs to complete: 
Type the remaining code, so that the body of the method is as follows: string tStr = txtItem.Text; if (!string.IsNullOrEmpty(tStr)) { if (!initialized) { txtList.Text = ""; } txtList.Text += txtItem.Text + "\n"; txtItem.Text = ""; } Make sure that you declare and initialize a variable called initialized as follows. public partial class MainPage : PhoneApplicationPage { bool initialized = false; Visual Studio supports various refactoring mechanisms. You can select any piece of code and right-click the code to access the refactoring menu. The Visual Studio editor is highly customizable. Developers can easily define various keyboard shortcuts or create their own macros. Macros help you to automate repetitive actions by combining a series of commands and instructions. The following table provides various functions and corresponding keyboard shortcuts in both Eclipse and Visual Studio.
Eclipse users can easily customize Visual Studio Editor to use shortcuts and keyboard combinations with which they are familiar. Developers can change the way various windows are laid out to suit their need. They can also change the way in which various windows are docked within the Visual Studio Shell. Directory: uploads uploads -> 587 Return function, r i(X) r i(0) r i(1) r i(2) r i(3) 1 0 2 4 6 Thermal Station, I 2 0 1 5 6 3 0 3 5 6 10 uploads -> Department of science and humanities department of mathematics part-a questions and answers uploads -> The Case Against the nypd’s Quota-Driven ‘Broken Windows’ Policing What Is It? uploads -> For want of a nail uploads -> Ownership Models There are two different types of ownership models uploads -> Police Militarization uploads -> City of rising star regular meting thursday, july 14, 2016 uploads -> Township of winfield uploads -> Stop Militarizing Law Enforcement Act of 2014 uploads -> The Black Panther Party’s Ten-Point Program What We Want Now! Download 0.57 Mb. Share with your friends:
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