蜂巢android3.1

chapter6-AndroidIntroductionchenbo2008@ustc.
edu.
cn中国科学技术大学软件学院*AgendaAndroidarchitectureAndroid-HALAndroiddevicedriver*Androiddevelopments*Android1.
1RobotAndroid1.
5CupcakeAndroid1.
6DonutAndroid2.
0/2.
0.
1/2.
1EclairAndroid2.
2/2.
2.
1FroyoAndroid2.
3GingerbreadAndroid3.
0HoneycombAndroid4.
0IceCreamSandwichAndroid4.
1JellyBeanAndroid4.
2JellyBeanAndroiddevelopments*AndroidInc.
founded2003PurchasedbyGooglefrominitialdveloperin2005Version2.
0released2009StartstotakeholdintheSmartphoneMarketVersion3.
0released2011PredominantlyusedinTabletsAndroiddevelopments*Android3.
0Honeycomb(蜂巢)2011.
2.
2Android3.
1Honeycomb(蜂巢)2011.
5.
11Android3.
2Honeycomb(蜂巢)2011.
7.
13Android4.
0IceCreamSandwich(冰激凌三明治)2011.
10.
19Android4.
1JellyBean(果冻豆)2012.
6.
28Android4.
2JellyBean(果冻豆)2012.
10.
30Android4.
3JellyBean(果冻豆)2013.
7.
25Android4.
4KitKat(奇巧巧克力)2013.
11.
01Android5.
0Lollipop(棒棒糖)2014.
10.
16Androiddevelopments*Androiddevelopments*Androiddevelopments*Opensource*AndroidOS=AndroidRuntime+LinuxKernelAndroidArchitecture*KernelLayerAndroidisbuiltontheLinuxkernel2.
6.
24+andProvidecoresystemservicessuchasprocess,memory,powermanagement,networkstack,drivermodelandsecurity.
AndroidDriverAshmem,Binder,PowerManagement,LowMemKillrer,logger.
AndroidArchitecture*AndroidArchitecture*HardwareAbstractionLayer–Abstractthehardwarefeatures,andseparatethekernelspaceanduserspace.
–Itisuserspace,notkernelspace.
–GPLproblem.
AndroidArchitecture*AndroidArchitecture*Thelibraryrunsinthesystem.
–BionicLibc–FunctionLibraries–HardwareAbstractionLibrariesAndroidArchitecture*BionicLibcC/C++library,customlibcimplementation,optimizedforembeddeduse.
WebKit-AppleSafariBasedonopensourceWebKitbrowserFullCSS,Javascript,DOM,AJAXsupportMediaFrameworkBasedonPacketVideoOpenCOREplatformSupportsstandardvideo,audio,still-frameformatsMightbereplacedbyStagefrightframeworkSurfacemanagerAudiomanagerOpenGLAndroidArchitecture*AndroidRuntime.
–Notusejavaruntime,andjavavirtualmachine–CorelibraryalreadycontainedmoreoriginallyjavaAPI–Unlikemostofvirtualmachinesthatarestackbased,Dalvikarchitectureisregisterbased.
AndroidArchitecture*AndroidArchitectureJNIHALAndroidServiceNativeService*AndroidArchitecture*Application–Javaprogramming–DefaultApplication:Email,Browser,Clock,Calendar,etc.
AndroidArchitecturethankyou!