What is android ?
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Android is a mobile operating system developed by Google, primarily for touchscreen devices like smartphones and tablets, and it has the largest installed base among general-purpose operating systems as of 2015. The Google Play Store has published over one million apps, with a significant number of active users and developers prioritizing Android development. Despite challenges such as limited resources and slow network access, there are extensive opportunities for growth and innovation in the Android application ecosystem.
What is android ?
- 1. Android
- 3. • As of July 2013, the Google Play store has had over one million Android applications ("apps") published, and over 50 billion applications downloaded.A mobile developer survey conducted in April–May 2013 found that 71% of those developers develop for Android with Android the "priority" target platform in more cases than iOS or other platforms as of 2015. At Google I/O 2014, the company revealed that there were over one billion active monthly Android users, up from 538 million in June 2013.
- 5. Android Features • Application Framework • Dalvik virtual machine • Integrated (web kit) browser • 2D and 3D graphics APIs with HW • SQLite • Video and audio codecs • Bluetooth, EDGE, 3G, and Wi-Fi • Camera, GPS, compass, and accelerometer
- 6. Applications
- 7. Challenges • CPU typically runs 500-600 MHz • RAM available to an App may only be a few megabytes • Disk (flash) access is very slow • Lifecycle - apps must pause/quit often, and restore to give the illusion that they are always running • UI design o typical screen may be HVGA (320x480) o may be in portrait or landscape o very high DPI - small text may not be readable o touch resolution is very low (~25 pixel) • Network access may be slow and (very) intermittent
- 8. Opportunities • 100s of millions of mobile phone users • Very high growth, esp. in Asia • "Wild wild west" of application development o think 1985 on the desktop (if you were born by then) o no dominant 3rd party developers.... yet o what will the killer app categories be? o what does it mean to have any app + the internet in your pocket? • You can develop for it today!