But not all is just bad. There are many antivirus companies out there who started to specialize in securing Android smart phones. And the basic versions of most such smartphone antivirus applications are free to use and to install. In this post we present you 5 free such applications created by the best antivirus companies.

1. TrustGo Antivirus & Mobile Security

This free security app from TrustGo Inc. does a great job of protecting smartphones from malware and viruses. As well as preventing them from being downloaded, application will also search out and eliminate any viruses or malware already present on the phone. The TrustGo Antivirus & Mobile Security app also does a good job of protecting users’ personal information and privacy.

2. Norton Security Antivirus

Norton has long been one of the most trusted names in antivirus software, and their app for Android smartphones lives up to the company’s stellar reputation. This free antivirus software protects phones from malware and viruses, and it also has a feature allowing users to lock their phones if they are lost or stolen. It is always nice to be able to protect a device for free with a name as trusted as Norton.

3. NQ Mobile Security & Antivirus

This app from NQ Mobile Security protects users’ smartphones in every imaginable way. This free antivirus app will protect phones running Android software from viruses, worms, spyware, malware and phone hacking. As well as protecting phones from viruses, NQ Mobile Security & Antivirus has a neat feature that allows users to block both incoming calls and text messages from undesirable numbers.

4. Antivirus Security Free

This powerful antivirus app from AVG is one of the best free apps available. AVG is one of the most respected companies in the antivirus business, and they pull out all the stops for this free app. This is one of the most wildly popular of all the free Android antivirus apps. There are already 70 million people protecting their smartphones with Antivirus Security Free. One of the coolest features of this app is the anti theft feature that allows users to quickly locate their phone with Google maps if it is lost or stolen.

5. Bitdefender Antivirus Free

This is another powerful free app that protects phones from all the nasty malware and viruses that are out there. Bitdefender Antivirus Free will automatically scan all the apps on a phone to look for malware and viruses. It also will scan new apps before they are downloaded to detect any nefarious programming. This is a great app for people who do not like to deal with a lot of hassle when they are using their phones. This security app requires no configuration when it is downloaded. It automatically installs and starts protecting the phone right away.

This post is provided to you by team from TopTenReviews.com. Thanks

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Now, most of the enthusiasts are trying to design applications for android tablets.

The framework of android consists of set of APIs (application programming interface) that help the developer to build excellent applications for tablets. However, most of the developers often get stuck when their applications do not respond to the operating systems, because they overlook the various components of APIs while designing the applications.

The Basic Application Components

The android application consists of codes that are written in java languages which are further compiled with other data or resource by android SDK tools. These applications when installed on android platform select each code and run independently. Also, android executes the applications only when they are needed to be. Thus, maintaining a secured environment for the applications and systems.

The catch is hidden here; android provides liberty to share the data amongst the applications. The developers need to arrange a way so that two applications share the data with each other, enabling to conserve lots of system resource, and increase performance at once. The essential application components such as activities services, content providers, and broad cast receivers are independent applications components, and have their own life cycle, yet the developers need to send a message to the system in order to share the data between any of the vital independent applications or the components.

Activity, an application component of the android, offers a screen on which a user performs its activities such as dialing phones, emailing etc. Each application has bundle of activities that are controlled by main activity. The sub components of Activity are fragment, loader, and lastly Task and back stack. While coding, developers should concentrate on these basic sub components as they are interrelated with each other, and are extremely essential for developing the applications and enabling them to act efficiently.

Developers have to be very careful while developing the manifest files, as Android’s manifest files declare the information for the applications related to android system, enabling them to run the codes as per the instructions. If the developers misses the manifest file, then his or her applications is simple going to crash on to any tablets. Manifest files also declare the minimum use of API by the applications, permits the applications to use hardware and software features, and links application to API libraries and many more.

Improvising User Interface

Improved user interface allows the user to interact with the applications with ease, and enjoy the eye catching display of the contents or WebPages.  Android provides developers the various   user interface components and controls them to build a graphical interface for their applications.

The different layouts such as liner layout (align view one by one) and relative layout (based on relation of the views) along with list view, and grid view, helps the developers to define the visual structure for the user’s interface. The layouts can be clubbed with appropriate view to increase the performance of the applications. Developers need to choose whether to declare UI in XML or represent the layout at the run time.

An extended Knowledge of input controls buttons, text fields, check boxes, radio buttons, toggle buttons, spinners and  pickers  as well the actions bars, enabling developers to enhance the user’s interface of the tablets in the most fascinating way. These input controls guide the user to perform their action and action bars to navigate through various web pages or data on tablets without a hitch.

Android powerful OpenGL (open graphic library) API, hardware acceleration and various animation supportive features have eased the execution of 2d and 3d graphics on the tablets.  However, the developers have to determine the Open GL version before its implementation as it is going to affect the performance of graphics and graphic controls on the tablets. It also helps developers during the coding as to decide which one to choose i.e. OpenGL ES 1.0 API that support fixed function or Open GL ES 2.0 API that does not support.

Types of Connectivity Features

Tablets that easily connect and share the data in the flick are said to be on the path of success. Android API equips the applications with Bluetooth, Wi-Fi Direct, USB, SIP and other network connections and allows the applications to easily interact with the devices and help users to share the information among each other. The developers need to take care of the factors such as various APIs have good step up and permission to interact with the devices.

Last but not the least; developers have to select the type of storage system they wish to provide to their user in order to store their applications on tablets. Android provides various storage options such as shared preferences for simple data i.e. primitive type, internal storage for private data, SQLite database for complex data, external storage for large data and web storage to store data on web.

The developers need to consistently upgrade their knowledge and understand the significance and vital usability of APIs and their components, permitting them to design and build the resourceful and stunning applications for the android tablets.

This guest post is by Mark Wilston who works with PixelCrayons.com. PixelCrayons offers extended teams to its clients, helping them to reduce Time To Market (TTM) and enhance Return On Investment (ROI) with services such as CMS web management and eCommerce development, Mobile Apps Development. One can hire Android developer here for effective Apps development.

The post Android tablets: Understanding Android APIs appeared first on ENFEW.

This is the list of free shopping aps you can use on Android powered mobiles and tablets. We have all best ecommerce names and their popular mobile appd in this list. Please enjoy. And if you are into iPhone / iPad teritory here is the list of great and interesting apps for shopping with your iPad.

1. Barcode Scanner by ZXing Team

Scan barcodes on products then look up prices and reviews. You can also scan Data Matrix and QR Codes containing URLs, contact info, etc.  Also share your contacts, apps, and bookmarks via QR Code. This is why contacts permissions are needed. See FAQ below.

2. Official eBay Android App by eBay Mobile

The official eBay app for Android! With the eBay app you can browse, buy, and easily check your eBay activity on the go. Receive alerts when your watched items or auctions are ending soon or when you have been outbid, so you never miss the opportunity to get that hard-to-find item. Sellers can also manage eBay listings and provide fast customer service no matter where they are. Simple, convenient, and easy-to-use, Go-Shopping on your Android-enabled phone!

We are constantly working to make the eBay Android app better. To make it easier for you to send issues or feature requests directly to eBay we’ve now added our customer support email on the Settings page. We hope to hear from you!

3. The Coupons App

Unbelievable coupon savings at your favorite stores, restaurants & gas stations – coupons always at your fingertips, everywhere you go!

4. Amazon.com by Amazon Mobile

Search & buy millions of products right from your Android device

The Amazon Mobile app allows Android users to quickly search, shop, compare prices, read reviews, and make purchases on Amazon.com using a simple yet elegant interface. Amazon customers have full access to their existing cart, wish lists, payment and Amazon Prime member shipping options, order history, and 1-Click settings.

5. Google Shopper by Google Inc

New from Google: Find products with your camera phone and get prices fast.

Find products and deals fast with your camera phone. Shopper recognizes products by cover art, barcodes, voice and text search and gives you information on prices, availability, reviews and videos. You can also use Shopper on any magazine ad to find that product or look for a special deal. In version 1.5, Shopper has begun incorporating coupons for places around you. This is just the start of Shopper helping you find great deals and helping you with all your purchases, stay tuned for future updates.

6. Walmart – Save money. Live better.

Looking to save money on the go? The Walmart app helps you find great products at unbeatable prices whether you’re at home, in our stores or anywhere in between.

Here’s how:
Grab our Value of the Day before it’s gone.
Low prices just got lower with Rollbacks on great products from apparel to video games.
Check our store inventory before you leave the house.
Find hours and directions to a store near you.
Refill prescriptions and browse $4 prescriptions on Walmart Pharmacy.

7. Groupon by Groupon, Inc

One unbeatable deal daily on the best stuff to do in cities across the US!

Groupon features one unbeatable Daily Deal on the best stuff to do in cities across the U.S and Canada. With our app you can buy and use your Groupons with ease. Never print another Groupon!

8. shopkick by The Hottest App In Shopping

#1 DEALS: Find new hot deals, exclusive deals & must-have items at the best stores, like Target, Best Buy, Macy’s, American Eagle, Sports Authority, Crate & Barrel and many more. We keep you posted on everything that happens at your favorite stores.

#2 REWARDS: With just a couple of shopping trips, you can earn cool gift cards, free movie tickets or help a good cause. Earning is easy: Simply WALK into partner stores (yes, just VISIT them – crazy, but true), scan products, purchase or even check in. Walk-in rewards are available in 80 markets now! Includes NYC, LA, SF, Dallas, Chicago, BOS, ATL, Houston, D.C., Miami, Seattle, St. Louis.

9. LivingSocial by LivingSocial Deals

• – Save the Earth – No more printing! Redeem your vouchers using your phone.
• – Why check email? Just click to view the deal and buy directly on your phone. It’s that easy!
• – Instant Deals – Find deals near you, right now and save.

10. Zappos by Zappos.com

In this core shopping app, you’ll be able to search, browse, read reviews, share, collect favorites AND buy really awesome products from a brand selection most folks probably didn’t even realize we carried.

This app does its darndest to deliver that WOW service our customers have come to know and love, like free shipping and returns with no purchase minimum, a 365 day return policy and 24/7 customer support. Something else really cool, our app has a dedicated customer support team for mobile devices! You’ll find the number inside.

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