Welcome!

Industrial IoT Authors: Pat Romanski, Liz McMillan, Olivier Huynh Van, Christopher Harrold, Derek Weeks

Blog Feed Post

Android to Windows 8 Part 3: Exploring the Windows Store Project

Over the past several weeks I’ve been working on some content I’m excited to finally share with you through a series of blog posts. This series will introduce you to Windows 8 development from an Android developer’s perspective. Through the course of the series you’ll create your first app. It won’t be anything pretty, but you’ll learn the ins and outs of the development environment, how to create a simple user interface, and how to perform navigation. Along the way you’ll see some Android Hints that will help make it easier for you to transition your existing skills to the Windows platform. You’ll also see some Visual Studio Tips to make you more productive in your development environment. Good luck!

In the last lesson you created your first Windows Store project. In this lesson you’ll spend some time exploring the project and learning about some key files and directories.

Package.appxmanifest


This is the application’s manifest. It is an XML document that contains the information the system needs to deploy, display, or update a Window Store app.

ANDROID HINT

Package.appxmanifest is similar to the AndroidManifest.xml file used by Android applications.

 

Here is some additional information about the manifest:

  • It includes package identity, package dependencies, required capabilities, visual elements, and extensibility points.
  • Every app package must include one package manifest.
  • The manifest is digitally signed as part of the signing the app package.
  • After signing, you can’t modify the manifest without invalidating the package signature.
  • After the package has been installed, the package manifest file appears in the directory for the installed package.

If you double-click the manifest in the solution explorer you’ll get a UI you can use to edit the various properties of the manifest. For this app we’ll leave everything as is.

MainPage.xaml and MainPage.xaml.cs


As mentioned in the last lesson XAML (eXtensible Application Markup Language) is the declarative language used to create the UI for Windows Store applications. MainPage.xaml is the default page for your application. This is where you’ll create your simple UI (in the next lesson). MainPage.xaml.cs is the associated C# code that goes along with your UI.

VISUAL STUDIO TIP

The *.xaml.cs file that is associated with a *.xaml file is called the code-behind file.

 

ANDROID HINT

The relationship between *.xaml and *.xaml.cs files is similar to the relationship between layouts and activities in Android development. When you create a generic Android app, you’ll get an activity_main.xml file in the res > layout
directory. This is where you define the UI for your Android app. You also get a MainActivity.java file in your src directory. This is where you write the code that goes along with the UI. In our app MainPage.xaml corresponds to activity_main.xml, and MainPage.xaml.cs corresponds to MainActivity.java

 

App.xaml and App.xaml.cs


App.xaml can be used to store information about application wide resources. By default a ResourceDictonary is added that refers to the StandardStyles.xaml file in the Common directory. (More on that in a minute).

App.xaml.cs provides application-specific behavior to supplement the default application class. This is where the connection to MainPage.xaml as the default page for the application is wired up

ANDROID HINT

In the generic Android app example I mentioned earlier, you set the default activity for the app in AndroidManifest.xml. Typically it looks something like this:

If you open up App.xaml.cs and navigate to the bottom of the OnLaunched method you’ll see the following:

This is what tells the app to display MainPage.xaml when it starts.

 

Assets Directory

The Assets directory contains default artwork used for the application’s tiles, splash screen, etc.

ANDROID HINT

The items contained in the Assets directory are similar to those found in the res/drawable-* directories of your Android projects.

 

Common Directory

The Common directory contains resources used across the application. By default it contains one file, StandardStyles.xaml. This file gives you the styles you need for your app to look like a Windows 8 (i.e. Metro application). You are not required to use it, but it’s a great resource for those of us who are design challenged.

As you can see, Visual Studio gives you a lot for free so you can get started on your app. You should continue to explore your project set up as well as the files and directories that get created with the of the other project templates as Visual Studio does a lot of heavy lifting for you.

In the next lesson you’ll learn how to run your application.

Previous Posts in this Series

  1. Setting up the Development Environment
  2. Creating Your First Windows Store Project

Additional Resources

Read the original blog entry...

More Stories By Adam Grocholski

Hey there! My name is Adam Grocholski, and I'm a Technical Evangelist at Microsoft where I spend time focusing on Windows, Windows Phone, and Windows Azure. I live in the frozen tundra of Minnesota and run thinkfirstcodelater.com. You can also follow me on twitter at @codel8r.

@ThingsExpo Stories
In this strange new world where more and more power is drawn from business technology, companies are effectively straddling two paths on the road to innovation and transformation into digital enterprises. The first path is the heritage trail – with “legacy” technology forming the background. Here, extant technologies are transformed by core IT teams to provide more API-driven approaches. Legacy systems can restrict companies that are transitioning into digital enterprises. To truly become a lea...
In his session at @ThingsExpo, Kausik Sridharabalan, founder and CTO of Pulzze Systems, Inc., will focus on key challenges in building an Internet of Things solution infrastructure. He will shed light on efficient ways of defining interactions within IoT solutions, leading to cost and time reduction. He will also introduce ways to handle data and how one can develop IoT solutions that are lean, flexible and configurable, thus making IoT infrastructure agile and scalable.
SYS-CON Events announced today that Sheng Liang to Keynote at SYS-CON's 19th Cloud Expo, which will take place on November 1-3, 2016 at the Santa Clara Convention Center in Santa Clara, California.
Just over a week ago I received a long and loud sustained applause for a presentation I delivered at this year’s Cloud Expo in Santa Clara. I was extremely pleased with the turnout and had some very good conversations with many of the attendees. Over the next few days I had many more meaningful conversations and was not only happy with the results but also learned a few new things. Here is everything I learned in those three days distilled into three short points.
Cognitive Computing is becoming the foundation for a new generation of solutions that have the potential to transform business. Unlike traditional approaches to building solutions, a cognitive computing approach allows the data to help determine the way applications are designed. This contrasts with conventional software development that begins with defining logic based on the current way a business operates. In her session at 18th Cloud Expo, Judith S. Hurwitz, President and CEO of Hurwitz & ...
So, you bought into the current machine learning craze and went on to collect millions/billions of records from this promising new data source. Now, what do you do with them? Too often, the abundance of data quickly turns into an abundance of problems. How do you extract that "magic essence" from your data without falling into the common pitfalls? In her session at @ThingsExpo, Natalia Ponomareva, Software Engineer at Google, provided tips on how to be successful in large scale machine learning...
An IoT product’s log files speak volumes about what’s happening with your products in the field, pinpointing current and potential issues, and enabling you to predict failures and save millions of dollars in inventory. But until recently, no one knew how to listen. In his session at @ThingsExpo, Dan Gettens, Chief Research Officer at OnProcess, will discuss recent research by Massachusetts Institute of Technology and OnProcess Technology, where MIT created a new, breakthrough analytics model f...
The Transparent Cloud-computing Consortium (abbreviation: T-Cloud Consortium) will conduct research activities into changes in the computing model as a result of collaboration between "device" and "cloud" and the creation of new value and markets through organic data processing High speed and high quality networks, and dramatic improvements in computer processing capabilities, have greatly changed the nature of applications and made the storing and processing of data on the network commonplace.
The Internet of Things can drive efficiency for airlines and airports. In their session at @ThingsExpo, Shyam Varan Nath, Principal Architect with GE, and Sudip Majumder, senior director of development at Oracle, will discuss the technical details of the connected airline baggage and related social media solutions. These IoT applications will enhance travelers' journey experience and drive efficiency for the airlines and the airports. The session will include a working demo and a technical d...
Almost two-thirds of companies either have or soon will have IoT as the backbone of their business in 2016. However, IoT is far more complex than most firms expected. How can you not get trapped in the pitfalls? In his session at @ThingsExpo, Tony Shan, a renowned visionary and thought leader, will introduce a holistic method of IoTification, which is the process of IoTifying the existing technology and business models to adopt and leverage IoT. He will drill down to the components in this fra...
Digital transformation is too big and important for our future success to not understand the rules that apply to it. The first three rules for winning in this age of hyper-digital transformation are: Advantages in speed, analytics and operational tempos must be captured by implementing an optimized information logistics system (OILS) Real-time operational tempos (IT, people and business processes) must be achieved Businesses that can "analyze data and act and with speed" will dominate those t...
If you had a chance to enter on the ground level of the largest e-commerce market in the world – would you? China is the world’s most populated country with the second largest economy and the world’s fastest growing market. It is estimated that by 2018 the Chinese market will be reaching over $30 billion in gaming revenue alone. Admittedly for a foreign company, doing business in China can be challenging. Often changing laws, administrative regulations and the often inscrutable Chinese Interne...
I'm a lonely sensor. I spend all day telling the world how I'm feeling, but none of the other sensors seem to care. I want to be connected. I want to build relationships with other sensors to be more useful for my human. I want my human to understand that when my friends next door are too hot for a while, I'll soon be flaming. And when all my friends go outside without me, I may be left behind. Don't just log my data; use the relationship graph. In his session at @ThingsExpo, Ryan Boyd, Engi...
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
Adobe is changing the world though digital experiences. Adobe helps customers develop and deliver high-impact experiences that differentiate brands, build loyalty, and drive revenue across every screen, including smartphones, computers, tablets and TVs. Adobe content solutions are used daily by millions of companies worldwide-from publishers and broadcasters, to enterprises, marketing agencies and household-name brands. Building on its established design leadership, Adobe enables customers not o...
If you’re responsible for an application that depends on the data or functionality of various IoT endpoints – either sensors or devices – your brand reputation depends on the security, reliability, and compliance of its many integrated parts. If your application fails to deliver the expected business results, your customers and partners won't care if that failure stems from the code you developed or from a component that you integrated. What can you do to ensure that the endpoints work as expect...
WebRTC adoption has generated a wave of creative uses of communications and collaboration through websites, sales apps, customer care and business applications. As WebRTC has become more mainstream it has evolved to use cases beyond the original peer-to-peer case, which has led to a repeating requirement for interoperability with existing infrastructures. In his session at @ThingsExpo, Graham Holt, Executive Vice President of Daitan Group, will cover implementation examples that have enabled ea...
SYS-CON Events announced today that ReadyTalk, a leading provider of online conferencing and webinar services, has been named Vendor Presentation Sponsor at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. ReadyTalk delivers audio and web conferencing services that inspire collaboration and enable the Future of Work for today’s increasingly digital and mobile workforce. By combining intuitive, innovative tec...
There is growing need for data-driven applications and the need for digital platforms to build these apps. In his session at 19th Cloud Expo, Muddu Sudhakar, VP and GM of Security & IoT at Splunk, will cover different PaaS solutions and Big Data platforms that are available to build applications. In addition, AI and machine learning are creating new requirements that developers need in the building of next-gen apps. The next-generation digital platforms have some of the past platform needs a...
Fifty billion connected devices and still no winning protocols standards. HTTP, WebSockets, MQTT, and CoAP seem to be leading in the IoT protocol race at the moment but many more protocols are getting introduced on a regular basis. Each protocol has its pros and cons depending on the nature of the communications. Does there really need to be only one protocol to rule them all? Of course not. In his session at @ThingsExpo, Chris Matthieu, co-founder and CTO of Octoblu, walk you through how Oct...