Androidis a powerful operating system competing with Apple 4GS and supports great features. Few of them are listed below:
| Feature | Description |
|---|---|
| Beautiful UI | Android OS basic screen provides a beautiful and intuitive user interface. |
| Connectivity | GSM/EDGE, IDEN, CDMA, EV-DO, UMTS, Bluetooth, Wi-Fi, LTE, NFC and WiMAX. |
| Storage | SQLite, a lightweight relational database, is used for data storage purposes. |
| Media support | H.263, H.264, MPEG-4 SP, AMR, AMR-WB, AAC, HE-AAC, AAC 5.1, MP3, MIDI, Ogg Vorbis, WAV, JPEG, PNG, GIF, and BMP |
| Messaging | SMS and MMS |
| Web browser | Based on the open-source WebKit layout engine, coupled with Chrome's V8 JavaScript engine supporting HTML5 and CSS3. |
| Multi-touch | Android has native support for multi-touch which was initially made available in handsets such as the HTC Hero. |
| Multi-tasking | User can jump from one task to another and same time various application can run simultaneously. |
| Resizable widgets | Widgets are resizable, so users can expand them to show more content or shrink them to save space |
| Multi-Language | Supports single direction and bi-directional text. |
| GCM | Google Cloud Messaging (GCM) is a service that lets developers send short message data to their users on Android devices, without needing a proprietary sync solution. |
| Wi-Fi Direct | A technology that lets apps discover and pair directly, over a high-bandwidth peer-to-peer connection. |
| Android Beam | A popular NFC-based technology that lets users instantly share, just by touching two NFC-enabled phones together. |
Android Applications
Android applications are usually developed in the Java language using the Android Software Development Kit.
Once developed, Android applications can be packaged easily and sold out either through a store such as Google Play or the Amazon Appstore.
Android powers hundreds of millions of mobile devices in more than 190 countries around the world. It's the largest installed base of any mobile platform and growing fast. Every day more than 1 million new Android devices are activated worldwide.
This tutorial has been written with an aim to teach you how to develop and package Android application. We will start from environment setup for Android application programming and then drill down to look into various aspects of Android applications.
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