Android application with Visual Studio and develop an understanding of the fundamentals of Android application development with Xamarin. You will create an application that translates an alphanumeric phone number entered by the user into a numeric phone number and display the numeric phone number to the user. The final application looks like this: Windows requirements To follow along with this walkthrough, you will need the following: Windows Visual Studio or Visual Studio version This walkthrough assumes that the latest version of Xamarin.

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Release: P1. Your own app could be running on all those devices! Getting started developing with Android is easy. This fourth edition of the bestselling Android classic has been revised for Android 4. Topics have been streamlined and simplified based on reader feedback, and every page and example has been reviewed and updated for compatibility with the latest versions of Android.

Use Android Studio. It features increased speed and stability, native support for gradle builds, and a fanstastic user interface editor. Understand the Activity and Fragment lifecycle. Android development is not like development for desktop applications. The system controls when your app is launched, paused, resumed, and terminated.

It calls methods you write, such as onStart , to tell you what is about to happen. Your job is to play nicely with the system and be a good Android app citizen.

Your users will thank you! Target the latest version of Android. To maintain compatibility with the widest possible range of devices, you should always use the latest build tools and set the target SDK to the most recent version of Android. Your app can still work on older versions through clever uses of version testing and alternate resources.

Keep long-running tasks in the background. The smooth performance of your app is paramount. The solution? Use threads and Loaders to offload that work to a background thread. Remember, logging is your friend. But often, simpler is better. A few well-placed messages in the Android log can help you diagnose problems quickly, even hard to reproduce ones. You Might Also Like.


Hello, Android (2nd edition): Introducing Google's Mobile Development Platform

Along the way, basic Android Application Building Blocks are introduced with a deeper dive into Android architecture. The final application will have a second screen that displays the numbers that were "translated", as illustrated by the screenshot on the right: The accompanying Deep Dive reviews what was built and discusses architecture, navigation, and other new Android concepts encountered along the way. Requirements Because this guide picks up where Hello, Android leaves off, it requires completion of the Hello, Android Quickstart. If you would like to jump directly into the walkthrough below, you can download the completed version of Phoneword from the Hello, Android Quickstart and use it to start the walkthrough. Start by opening the Phoneword application in Visual Studio and editing the Main. Tip Newer releases of Visual Studio support opening. This will cause the button to become darker on the design surface: Creating the second activity Create a second Activity to power the second screen.


Hello, Android Multiscreen: Quickstart

Next Page Let us start actual programming with Android Framework. Before you start writing your first example using Android SDK, you have to make sure that you have set-up your Android development environment properly as explained in Android - Environment Set-up tutorial. I also assume that you have a little bit working knowledge with Android studio. So let us proceed to write a simple Android Application which will print "Hello World!


Hello, Android (4th edition): Introducing Google's Mobile Development Platform


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