Mobile Phone Programming

Transcription

1 agenda Symbian OS Introduction Why Symbian? Overview Symbian Development considerations UI Platforms Series 60/80/90, UIQ etc. 1

2 agenda Development for S60 Available IDE s Getting the SDK and using the Carbide.c++ IDE Getting Help why symbian? Why are we here? 7 out of 10 smartphones are powered by Symbian OS 165 million cumulative Symbian OS phone shipments since the formation of Symbian as of Q (82.8 mill. in Q2 06). Symbian C++ gives Maximum flexibility Speed 2

3 why symbian? why symbian? Licence owners 3

4 overview Runs on battery powered devices has low power consumption Designed for devices with limited memory Open Operating System 3rd party developers can write applications Reliable and stable Applications can run for years without being closed or losing user data Object Orientated from the ground up Provides a C++ API Micro kernel architecture development considerations Designed for devices with limited resources E.g. Battery, CPU, Memory. Example device: Nokia N bit CPU 220 MHz (ARM). C: Flash/RAM ~30MB free after boot (this is quite good). Z: ROM stores the OS and built in middleware and applications. Symbian OS v8.1a S60 2nd Edition, Feature Pack 3 Most S60/UIQ phones today: 220 MHz, 64 MB Ram N93, N95: 332 MHz, MB Ram, hardware 3D acceleration 4

5 development considerations Native language Symbian C++ Writing of Epoc32 ER1 begins: September 1994 Psion Series 5 PDA ships containing the first release of the Symbian OS in a product: June 1997 ISO/IEC publication of the C++ standard: September 1998 Thus Symbian does not support standard C++ features. Own idioms had to be invented. New developer for Symbian? You should have some C++ experience! development considerations Limited resources results in: Active Object Framework Descriptors, Leaves and traps etc. New developer for Symbian? You should have some C++ experience! 5

6 development considerations Available since 2007 P.I.P.S Allows using C standard libraries (POSIX) on Symbian OS Open C (Nokia) adds additional libraries Useful for porting applications and game development UI development still requires Symbian-dialect of C++ Source: development considerations The manufacture adjust the UI layer to match the capabilities of their device. 6

7 Generic Technology platforms Series 60/80/90 (forum.nokia.com or s60.com) UIQ (uiq.com) FOMA NTT DoCoMo (largest operator in Japan) What s the difference (excluded FOMA): The base system is the same. Main difference is the UI layer. platforms We can use a common code base. 7

8 development for S60 S60 and Symbian evolution Overview development for S60 Moving between 2nd and 3rd edition. Code recompilation. Platform security. Certificates and data caging. More access. Binary break Some migration needed Compatibility 8

9 platform security API Access grouping based on capabilities Note, All SIS files must be signed before installation on the device Unrestricted User-Grantable (at installation time) Symbian Signed Licensee / Platform Approval Self signed Certificate Developer Certificate ~60% of APIs ReadUserData WriteUserData NetworkServices LocalServices UserEnvironment The user-grantable capabilities + Location ReadDeviceData WriteDeviceData PowerMgmt SurroundingsDD ProtServ TrustedUI SwEvent Symbian Signed capabilities + DRM TBC DiskAdmin AllFiles CommDD MultiMediaDD NetworkControl available IDE s Carbide New generation of development tools. Released beginning of Carbide.c++ is a family of Eclipse-based development tools supporting Symbian OS development on Series 60, Series 80 and UIQ. Carbide.vs is a plug-in that allows Visual Studio users to develop C++ code for Symbian OS platforms including Series 60 and Series 80. 9

10 available IDE s Other alternatives CodeWarrior for Symbian OS Borland C++ Builder Mobile Edition Using command line tools. Note: Platforms No official support for anything but Windows. Linux and Mac development is possible. getting around the SDK Dir: C:\Symbian\OS version\ui version Epoc32 - cross compiler, emulator, include files, etc. Examples - SDK examples Series60Doc - SDK documentation Series60Ex - Series 60 specific examples Series60Tools Tools Drive mappings (z: and c:) Z: \Epoc32\release\winscw\udeb\z C: \Epoc32\winscw\c Lets quickly browse the directories 10

11 using Carbide.c++ Express Demo Find the steps at: development/programming/symbian_c/ getting started Emulators are a great help when debugging 11

12 getting started Testing you code quickly using console applications! additional resources Great books: Loan a book from us. Remember the IRC channels Freenode #symbian 12

13 additional resources Tutorials, code examples and forum at Tutorials, code examples and forum at forum.nokia.com Wiki at forum.nokia.com/wiki White papers and Symbian OS documentation at Newsgroups regarding a wide range of Symbian related topics: nttp://developer.symbian.com want to make a project Recommended C++ experience Use us Step by the office and discuss the project. 13