Welcome!

Industrial IoT Authors: Kevin Benedict, LeanTaaS Blog, Liz McMillan, Elizabeth White, Pat Romanski

Blog Feed Post

Android to Windows Phone 8 Part 3: Exploring the Windows Phone 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 Phone 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 Phone 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 Phone project. In this lesson you’ll spend some time exploring the project and learning about some key files and directories.

WMAppManifest.xml


This is the application’s manifest. It is an XML document that contains details about the app, such as the App ID and the capabilities the app uses.

ANDROID HINT

WMAppManifest.xmal is similar to the AndroidManifest.xml file used by Android applications.

 

Here is some additional information about the manifest:

  • When you submit your apps to the Windows Phone Store, info from the manifest file is used in the certification process, to filter your app correctly in the Store, and to deploy and run your app on the device.
  • The info from the manifest file is stored as metadata in the app database.

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.

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 WMAppManifest.xml you’ll see an option for Navigation Page this is where you set the default page for the app to open when it starts.

 

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 Phone 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 reference is added to a file used to store localized string values.

App.xaml.cs provides application-specific behavior to supplement the default application class. This is also where you can tie into the following events of the application lifecycle:

  • Launching – when the application is initially launched.
  • Activated – when the application is brought to the foreground after being in the background.
  • Deactivated – when the application is sent to the background due to a system event (i.e. phone call).
  • Closing – when the user presses the hardware Back button.

ANDROID HINT

The following table maps the appropriate Android method to its Windows Phone event counterpart:

Android Method

Windows Phone Event

onCreate()

Launching

onStart()

Launching

onResume()

Launching or Activated

onPause()

Deactivated

onStop()

Closing

onDestroy()

Closing

 

The Windows Phone application lifecycle will be covered in depth in another installment of this series.

Assets Directory

The Assets directory contains default artwork used by the application.

ANDROID HINT

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

 

Resources and LocalizedStrings.cs

The Resources directory contains resources used across the application. By default it contains one file, AppResources.resx. This file is where you store strings displayed in the UI for localization.

ANDROID HINT

AppResources.resx is similar to the res/values/strings.xml file used in Android projects.

 

The LocalizedStrings.cs file wraps access to the AppResources.resx file and gives your app programmatic access to the string resources it contains.

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

  • Setting up the Development Environment
  • Creating Your First Windows Phone 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
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...
The Jevons Paradox suggests that when technological advances increase efficiency of a resource, it results in an overall increase in consumption. Writing on the increased use of coal as a result of technological improvements, 19th-century economist William Stanley Jevons found that these improvements led to the development of new ways to utilize coal. In his session at 19th Cloud Expo, Mark Thiele, Chief Strategy Officer for Apcera, will compare the Jevons Paradox to modern-day enterprise IT, e...
There are several IoTs: the Industrial Internet, Consumer Wearables, Wearables and Healthcare, Supply Chains, and the movement toward Smart Grids, Cities, Regions, and Nations. There are competing communications standards every step of the way, a bewildering array of sensors and devices, and an entire world of competing data analytics platforms. To some this appears to be chaos. In this power panel at @ThingsExpo, moderated by Conference Chair Roger Strukhoff, Bradley Holt, Developer Advocate a...
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
SYS-CON Events announced today that Bsquare has been named “Silver Sponsor” of SYS-CON's @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. For more than two decades, Bsquare has helped its customers extract business value from a broad array of physical assets by making them intelligent, connecting them, and using the data they generate to optimize business processes.
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...
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...
Fact is, enterprises have significant legacy voice infrastructure that’s costly to replace with pure IP solutions. How can we bring this analog infrastructure into our shiny new cloud applications? There are proven methods to bind both legacy voice applications and traditional PSTN audio into cloud-based applications and services at a carrier scale. Some of the most successful implementations leverage WebRTC, WebSockets, SIP and other open source technologies. In his session at @ThingsExpo, Da...
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 & ...
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...
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...
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...
SYS-CON Events announced today that Pulzze Systems will exhibit 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. Pulzze Systems, Inc. provides infrastructure products for the Internet of Things to enable any connected device and system to carry out matched operations without programming. For more information, visit http://www.pulzzesystems.com.
SYS-CON Events announced today that Numerex Corp, a leading provider of managed enterprise solutions enabling the Internet of Things (IoT), will exhibit at the 19th International Cloud Expo | @ThingsExpo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Numerex Corp. (NASDAQ:NMRX) is a leading provider of managed enterprise solutions enabling the Internet of Things (IoT). The Company's solutions produce new revenue streams or create operating...
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...
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.
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...
Major trends and emerging technologies – from virtual reality and IoT, to Big Data and algorithms – are helping organizations innovate in the digital era. However, to create real business value, IT must think beyond the ‘what’ of digital transformation to the ‘how’ to harness emerging trends, innovation and disruption. Architecture is the key that underpins and ties all these efforts together. In the digital age, it’s important to invest in architecture, extend the enterprise footprint to the cl...
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...
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...