Android. Create a file manager

Android - a promising and rapidly growing operating system. And many programmers want to learn how to program applications for OS Android, but a quick search of structured materials in the Internet and, in particular, Lesbian, leads them into a stupor. Indeed, there is still a problem finding tutorials (especially in Russian) to develop applications for this very popular operating system.
Well, we will gradually improve the situation with Habra.
I shall warn that the materials are intended for those who do not have experience in developing applications for Android, but very, very much wants to get this experience.

Write your first application on Android

Preface

The purpose of this post - on the one hand to share their successful experience in start developing applications for the Android platform and on the other hand contribute to the development of the market of software for this remarkable and rapidly growing platform for the account (without false modesty, I say) you may have read this post. The network, of course, you can find information on application development, "a little more complicated than helloworld», but as a rule they scattered and they do not describe the various small underwater stones. In this post we look at the full cycle of application development, starting with a clean computer to finished apk-file.Under the cut screens.

10 useful solutions for the Android Developer

Content

1. Entry
2. About the adapters list ( ListView ) with subcategories (for grouping items in the list)
3. About the lists that contain any of the (list items do anything complicated or alter themselves for selection)
4. About forced invalidation of the lists
5. About caching images for ListView (for lists with images)
6. About adapters, iterates through the cursor (to support pagination on the list)
7. About authorization via OAuth to Android
8. About using MediaPlayer and bufferring video feed over HTTP
9. About the turn of a few AsyncTask (alternate to perform background tasks)
10. About changing illumination of the selected item in ListView
11. About adding QuickActions in project
12. Three more small solving

New Editing Features in Eclipse plug-in for Android

At the Google I/O conference a month ago, we demonstrated the next version of the Android Development Tools (ADT) plugin. Today we’re happy to announce that version 11 is done and available for download!

ADT 11 focuses on editor improvements. First, it offers several new visual refactoring operations, such as “Extract Include” and “Extract Style,” which help automatically extract duplicated layout fragments and style attributes into reusable layouts, styles, and themes.

Second, the visual layout editor now supports fragments, palette configurations, and improved support for custom views.

Last, XML editing has been improved with new quick fixes, code completion in more file types and many “go to declaration” enhancements.

ADT 11 packs a long list of new features and enhancements. Please visit our ADT page for more details. For an in-depth demo, check out the video of our Android Development Tools session at Google I/O, below.

Android Development Demo: “DialANumber” – How to write your own very first Android program – Made Simple!

While I think the Android development examples are not really good and straight forward perhaps some of you come along with them. However, I would like to provide you a very very simple example here on how to write your own first Android program.
This is technically very easy.