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Today Android Development Resources, Articles and Source Code

Android Tutorial | Android SDK Development & Programming
1. Messenger Activity in Android

This example is a simple messenger activity. Algorithm: 1.) Create a new project by File-> New -> Android Project name it MessengerActivity. 2.) Write following into main.xml: 3.) Write following into values/strings.xml: 4.) Run for output. Steps: 1.) Create a project named MessangerActivity and set the information as stated in the image. Build Target: Android [...]
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2. Loan Calculator in Android

This example is a simple loan calculator application which shows monthly payment and total loan of the values entered. Algorithm: 1.) Create a new project by File-> New -> Android Project name it LoanCalculator. 2.) Write following into main.xml: 3.) Write following into values/strings.xml: 4.) Run for output. Steps: 1.) Create a project named LoanCalculator [...]

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Android Tricks: expandable ListView items

The Android notification subsystem was significantly revamped in Jelly Bean. Among the new features, notifications can now be presented in two modes—collapsed and expanded. The user can toggle between the two modes by using a 2-finger swipe gesture, dragging up or down on the item in the notification panel. The GMail notification uses this new feature to present a summary of the new emails received in expanded mode while only giving a count of new mails in collapsed mode:
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Build a Twitter Search App for Android: Project Setup

This two-part tutorial series will introduce you to the fundamentals of working with RESTful web services using the Android SDK. Along the way, you'll learn how to perform searches against the public Twitter API!

It goes without saying that Internet access is one of the main assets you can exploit in Android devices. Many popular sites and social networks use Web services to provide access to their data, often using architectural models such as REST (Representational State Transfer). Twitter is one such service, with various APIs for accessing tweets and timelines. In this two-part series we will use the Twitter Search API to fetch recent tweets on a search term chosen by the user.

In this first part we will capture the user input and build the URL to use in an HTTP request to the Twitter search URL for tweets on the input term. In the second part we will retrieve the results, which will be formatted in JSON. We will parse the returned JSON tweet feed and display it within a simple …

Build an ASCII Art Editor: Save and Delete ASCII Pictures

The Android platform offers a wide range of storage options for use within your apps. In this tutorial series, we are going to explore some of the data storage facilities provided by the Android SDK by building a simple project: an ASCII art editor.
This is the final part in a tutorial series on creating an ASCII art editor app for Android. In the first three parts, we created the user interface, implemented saving user ASCII pictures as image files, and set up a database to store saved pictures in. This allowed users to choose from the list of saved pictures to load back in for viewing, exporting, and editing. In this tutorial, we will facilitate saving pictures to the database, deleting pictures previously saved, and starting new pictures.
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Playing Audio in Android

In this blog we will be discussing the process of listing audio files from external storage and then play them back using the Android Media player. We will create a simple UI and MediaPlayer object to perform the task. We will also use MediaCursorAdaptor object to navigate the file list. This example shows a simple use case for the media player. You can integrate similar feature in your apps using the code.
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Installing the Android SDK on OS X

Android is becoming more and popular amongst developers, the purpose of this tutorial is to show you how to install the Android SDK on your Mac – for this tutorial, I am running OS X and will be installing it in the Eclipse IDE (don't worry, we'll walk through all the steps, including obtaining the IDE).

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Build an ASCII Art Editor: Interface Setup

This tutorial series on Creating a Simple ASCII Art Editor is in four parts:
Building the User InterfaceImage Export and User ConfigurationASCII Picture Database Creation and QueryingSaving and Deleting ASCII PicturesBy the end of this tutorial series, the user will be able to enter text characters to draw their ASCII artwork, save the art to a database, or even export their creation as an image file. The user will also be able to choose to display settings that determine the text and background colors for the ASCII art canvas.
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Creating Android Services with C#

Creating Android Services with C#
One of the great things about Mono is that it lets you use tools like C# and the .NET Framework to build apps just about anywhere. In this video, Mike Bluestein demonstrates why you need Android Services how to use Mono for Android and C# to build them. Check the link at the bottom of the post for more Xamarin Seminars on using Mono to create Android, iOS and Mac apps.

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Getting Started with XML Layouts in Android SDK

This tutorial will teach you the fundamentals of building Android interface layouts with XML. Read on!

When you're getting started with developing Android apps using Eclipse and the ADT plugin, Eclipse's powerful graphical layout editor is a great place to start visually designing your user interface. However, this "what you see is what you get" approach has its limitations, and at some point you'll need to switch to XML.

One of the major benefits of declaring your UI in XML is the ability to keep the UI and the behavior of your app separate, giving you the freedom to tweak your app's presentation without disrupting its underlying functionality.

In this article, I'll show you how to design a basic XML layout from scratch, including defining the root element, specifying height and width parameters, and adding some basic UI elements. Finally, I'll use this basic layout to demonstrate some advanced XML options, such as allocating different amounts of space …

Map Marker Example in Android

Android Tutorial | Android SDK Development & Programming

Map Marker Example in Android

This example show you how to draw movable marker on to map. You can darg and drop the marker to change its position. Can be used in any application where u want to take input from user for map location. Algorithm: 1.) Create a new project by File-> New -> Android Project name it MapMarkerExample. [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.

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iOS SDK : UIActionSheet and UIActionSheetDelegate

In this beginner's iOS SDK tutorial, we will go over how to implement UIActionSheet and UIActionSheetDelegate. This class will allow you to easily prompt the user for input by displaying a list of menu options.

Step 1: Project Setup

Launch Xcode and click File > New > Project. Click "Application" under the iOS pane on the left and then click the "Single View Application" icon. Click "Next".

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Tips for Android Application Automation Testing

Testing is a very important part of application development process. Testing for Android is especially important because of differences between the devices:

Screen size and resolution;Version;Form factor;The presence of front-facing camera, NFC, external keyboard, etc.That's why you need test applications on the plenty of devices. Testing process consists of different testing types.

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Using SQLite Database with Android

Android default Database engine is Lite. SQLite is a lightweight transactional database engine that occupies a small amount of disk storage and memory, so it's a perfect choice for creating databases on many mobile operating systems such as Android, iOS.

Things to consider when dealing with SQLite:
Data type integrity is not maintained in SQLite, you can put a value of a certain data type in a column of another datatype (put string in an integer and vice versa).Referential integrity is not maintained in SQLite, there is no FOREIGN KEY constraints or JOIN statements.SQLite Full Unicode support is optional and not installed by default.In this tutorial, we will create a simple database application to store employees data. the DB has:

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Android Project Structure

This tutorial will teach you about the fundamental files and directories created when you start a new project with the Android SDK Wizard. You will also learn important tips for structuring your own applications!

Part 0: Getting Started

This series of Android tutorials is meant to help you build the skills and confidence necessary to build real, quality Android apps. This tutorial is for the Java developer just getting started learning Android app development, who is somewhat familiar with Eclipse and has installed the Android SDK and the Android Developer Plugin for Eclipse. If you are not prepared...
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Stay tuned to my blogtwitter or facebook to read more articles, tutorials, news, tips & tricks on various techno…

Tips for Android Application Automation Testing

Testing is a very important part of application development process. Testing for Android is especially important because of differences between the devices:

Screen size and resolution;Version;Form factor;The presence of front-facing camera, NFC, external keyboard, etc.That's why you need test applications on the plenty of devices. Testing process consists of different testing types.

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Today Android Development Resources and Articles

Android Tutorial | Android SDK Development & Programming

1. Code Layout Example in Android Programming

This example shows how you can create your own layout through code instead of xml. Algorithm: 1.) Create a new project by File-> New -> Android Project name it CodeLayoutExample. 2.) Run for output. Steps: 1.) Create a project named CodeLayoutExample and set the information as stated in the image. Build Target: Android 4.0 Application [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.

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2. Share Your Data Android Programming

This example shows how you can share your text and data with your friends. Algorithm: 1.) Create a new project by File-> New -> Android Project name it ShareYourData. 2.) Write following into activity_main.xml: 3.) Write following into res/values/styles.xml: 4.) Run for output. Steps: 1.) Create a project named ShareYourData and set the information as [...]

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Android App Debugging

In this tutorial, we will explore the core set of debugging tools that new Android app developers need to be aware of in order to create and perfect their apps.

Part 0: Getting Started

This series of Android tutorials is meant to help you build the skills and confidence necessary to build high-quality Android apps. This tutorial is for the Java developer just getting started learning Android app development, who is somewhat familiar with Eclipse, and who has installed the Android SDK and the Android Developer Plugin for Eclipse. Also, you should know how to create a simple Android application (Hello World will suffice) in order to complete this tutorial. If you are not prepared...
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Android - Stock Market Watch (COINS) in C# using Visual Studio 2010

"COINS Mobile" allows you to watch Stock Market Data. It illustrates proper application architecture layering and uses a common code base for the Business Layer and Data Layer. It then separates out the User Interface and Application Layer into the appropriate device-applications.

This article discusses the power of C# to build a Professional Application for Android. The purpose of writing this article is to understand what you can do with C# using Visual Studio 2010 similar to how you would develop a Windows Application in C#. All credit goes to Xamarin to provide such a beautiful platform for .NET developers to build application in Android.
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Today Android Development Resources and Articles

Android Tutorial | Android SDK Development & Programming

1. Sound Pool Example in Android Development

This example shows how you can play sound using sound pool. Algorithm: 1.) Create a new project by File-> New -> Android Project name it SoundPoolExample. 2.) Add a sound file to res/raw folder and name it to sound1. 3.) Write following into main.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"         android:orientation="vertical" android:layout_width="fill_parent" [...] No related posts. Related posts brought to you by Yet Another Related Posts Plugin.

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2. Download Manager in Android Programming

This example shows how you can create download manager activity. Algorithm: 1.) Create a new project by File-> New -> Android Project name it DownloadManager. 2.) Add following permission into your manifest file: <uses-permission android:n…

Android Sample Apps

The Android SDK includes many sample apps that can help you learn Android by inspecting how different APIs are used to build a mobile application. These sample apps are available for download through the Android SDK Manager. Learn how to easily create Eclipse projects around these sample apps, compile them, and use them in your own projects.

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