Synapseindia android apps intro to android and i os
- 1. Intro to Android and iOS
- 2. The Players • Android – Open source mobile OS developed ny the Open Handset Alliance led by Google. Based on Linux 2.6 kernel • iOS – Apple’s proprietary mobile OS, iPhone, iPod Touch, iPad. Derived from OS X, very UNIX like • Symbian – acquired by Nokia 2008 • Windows Phone 7 – Microsoft – Kin, discontinued 6 weeks after initial launch • Blackberry OS – RIM (Research in Motion), proprietary OS
- 3. The Smartphone Platform • With the iPhone being the first to the marketplace it sets the configuration of the Smartphone Platform – 3G/4G connectivity – WiFi connectivity – Bluetooth connectivity – accelerometer w/compass – ambient light sensor – proximity sensor – GPS – gyroscope
- 4. What is Android • Android is an open source operating system, created by Google specifically for use on mobile devices (cell phones and tablets) • Linux based (2.6 kernel) • Can be programmed in C/C++ but most app development is done in Java (Java access to C Libraries via JNI (Java Native Interface)) • Supports Bluetooth, Wi-Fi, and 3G and 4G networking
- 5. What is iOS • Apple’s mobile OS for phones (iPhone), tablets (iPad), handhelds (iPod), • based on BSD Unix • Application programming done in Objective C • Supports Bluetooth, Wi-Fi, and 3G and 4G networking
- 6. Bluetooth • Open wireless technology – Developed by Ericsson (1994) – Originally supposed to replace wired RS-232 – Short distance via low power, short distance radio – Allows creation of personal area networks • Mostly to connect wireless peripheral devices to a host computer (mice, headsets, microphones, keyboards…) – Can also be used to communicate between two host computers wirelessly (replace serial cables)
- 7. Wi-Fi • Used to brand certified products that belong to a class of wireless local area network based on IEEE Standard 802.11 • Currently there are 3 versions of 802.11 in common use: – B, about 150 feet indoors, 300 ft outdoors – G, 54 Mbits about 150 feet indoors, 300 ft outdoors – N, 600 Mbits, about 1.5 miles in open air, uses MIMO (multiple input and output antennas)
- 8. 3G ( 3rd Generation Network) • Must allow simultaneous use of speech and data servicesand provide peak data rate of 200 kbits/sec
- 9. 4G • Provides a comprehensive and secure IP based solution for IP based telephony, ultra broadband internet, gaming services and streamed multimedia. • Peak data rate of 100 Mbit for high mobility devices and 1 Gbit for low mobility devices.
- 10. Commonly Used Packages • User interface controls and widgets • User interface layout • Secure networking and web browsing • Structured storage and relational databases (SQLite RDBMS) • 2D and 3D Graphics SGL and OpenGL • Audio and visual media support • Access to optional hardware (GPS)
- 11. The Android Software Stack
- 12. Android Application Development Eclipse IDE Android SDK Android Emulator Android Mobile Device
- 13. iOS Application Development XCODE IDE iOS SDK iOS Simulator iOS Mobile Device
- 14. Android development Android Manifest Resource XML Java Source Generated Class Java Compiler Android Libraries .dex File Dalvik VM
- 15. iOS development Objective C Source .xib file Objective C Compiler Foundation Framework Cocoa Libraries . Simulator or Device Xcode Interface Builder