How to change Google Play Country on Android

As you know, Google Play filters some apps on a per country and/or per region basis. And I also when relocated to Poland wasn't able to download and use Poland based apps.

Long history, in short, most of the time developers or companies (bank and government organizations i.e.) put apps on the market which are allowed to download only by the account/user which belongs to that country. 

Today, when I need to change my account to use Poland as a country wasn't easy as expected :) That is why I decided to share easy steps how I did it with you.

Youtube/Shazam mp3/mp4 downloader for Android

Do you know how to download music or video from Youtube? Or do you know how to download music/mp3 from shazam on your android device?
If you don't know how download music from youtube or shazam on android then you should read this post :)

We have developed 2 applications by name YouMp34 and ShazaMusic which allow you to download from youtube and shazam for free.
Both of this applications is free and only for android users. You can view and download it from our official web site www.yoump34.com


We'll be happy to grow together :)

Setting the background image of an Android TextView

TextView displays text to the user and optionally allows them to edit it. A TextView is a complete text editor, however the basic class is configured to not allow editing; see for a subclass that configures the text view for editing.
In most cases u want add image as textView background. It's so easy. In layout xml file u must write:

Android ImageView: Zoom in Zoom out And Drag

Short description about ImageView:
Android supports 3 common image formats PNG, JPG, GIF, along with 9 patch PNG images. Images are stored in the directory res/layout/drawable. 
As of version 1.6 of the Android SDK multiple drawable directories exist for different screen resolutions. There are low, medium, and high DPI specific directories, drawable-ldpi, drawable-mdpi, drawable-hdpi respectively. This allows you to create images at different DPI to enhance the appearance of your application. 
All image filenames should be lowercase and only contain letters, numbers, and underscores.

Do Before Publish Your Android Application

Preparing and packaging an application for publication is called the release process. The release process is an exciting time: The application is stable and working as expected, all those troublesome bugs have been resolved (within reason, at least), and you feel that you’re ready to put your app in front of users.

The final build you perform - the build you expect to deliver to users - is called the release candidate build. The release candidate build should be rigorously tested and verified before it reaches users’ hands. If the release candidate build passes every test, it becomes the release build - the official build for publication.

An unhandled win32 exception occured in emulator-arm.exe

An Android Virtual Device (AVD) is an emulator configuration that lets you model an actual device by defining hardware and software options to be emulated by the Android Emulator. For more information u can read from developer.android.com


When u debug your Android application in eclipse on win32 u may be see exception as following:

An unhandled win32 exception occured in emulator-arm.exe [xxxx]

Debugging Applications with DDMS

 The Dalvik Debug Monitor Service (DDMS) is a debugging utility that is integrated into Eclipse through a special Eclipse perspective. The DDMS perspective provides a number of useful features for interacting with emulators and handsets and debugging applications.

You can use the DDMS File Explorer to browse files and directories on the emulator or a device You can copy files between the Android file system and your development machine by using the Push and Pull buttons available in the top right-hand corner of the File Explorer tab. You can also delete files and directories by using the Delete button or just pressing the Delete key.

Creating Android Projects

Brief History
Android is the first complete, open, and free mobile platform. Developers enjoy a comprehensive software development kit, with ample tools for developing powerful, feature- rich applications. 
The platform is open source, relying on tried-and-true open standards developers will be familiar with. And best of all, there are no costly barriers to entry for developers: no required fees. (A modest fee is required to publish on thirdparty distribution mechanisms such as the Android Market.) Android developers have numerous options for distributing and commercializing their applications.


Creating Android "Hello World" App.
Before u start creating Android Projects you should already have the Java (JDK 5 or JDK 6) installed + Eclipse ( >= 3.5 (Galileo)) + Android SDK + ADT Plugin.

The Android Project Wizard creates all the required files for an Android application.

Open Eclipse and follow these steps to create a new project: