安卓系统发展简介(课堂展示英文版)

HOWDOWEKNOWABOUTANDROID?ABRIEFINTRODUCTIONOFTHEDEVELOPMENTHoofCol2015/11/27,1-529,WHU121Introduction2Initiation3HistoricalProcess4PresentSituation6DevelopTendency5ChallengesINTRODUCTIONAndroidisanopensourceoperatingsystembasedonLinus,whichhasasplendidhistoryof8yearsnow.Thesystemismainlyusedinmobiledevices,suchassmartphonesandtabletPCs.Nowasweallknown,Google,whogreatlydevelopedAndroidsystem,isstillthelargestboss.WhileenjoyingthechangesthatANDROIDbringstoourlives,thereisnodenyingthatdevelopmentofthislegendaryisworthlearning.31INITIATIONTheword“Android”firstlycameofanovelcalledL’EveFuturewrittenbyAugusteVilliersdel'Isle-Adam,aFrenchwriter,in1886.Inthestory,therewasasmartgirlrobotnamedAndroidbyherinventor.So,whenatechnologycompanycalledAndroidestablishedinaround2003,maybeitwasasuggestionthatAndroidwasssymbolofnewTechnologyandunboundedpotential.42INITIATIONTherealbeginningofAndroidwasin2005,whenGooglepurchasedAndroidcompany.Atthesametime,AglobalorganizationcalledOpenHandsetAlliancewasestablished.Fromthenon,Androidgraduallyenteredthepublic,andhasbeenchangingourworlddaybyday.52INITIATIONWhoIstheFatherOfAndroid?62AndyRubin,VicePresidentofGoogle.Bornin1963ArobotcompanyAppleInc.MicrosoftCorp.RobotdevelopingSmartmobilephoneAndroidINITIATIONLinuxKernel72Asafreeopensourcesystemkernel,Linuxiswidelyportedtoavarietyofdevices,whichprovidestheCPUprocessmanagement,storagesystem,filesystem,devicemanagement,networkcommunicationandsystemcallsandothermodules.Butthesinglekernelisnotacompletesystem,italsoneedstojointheoperatinglibrary,interactiveinterface,etc.INITIATIONOpensourceandfree82Androidisalsoanopen-sourceoperatingsystem,everybodycanusecorrespondingAPIstocreateeverythingyoucanimagine.INITIATIONInterestingAndroidsystemhardcorenames92EveryversioncodeofAndroidsystemhadaninterestingname,whichwasakindofdessert,like:(Astro,Bender,)Cupcake,Donut,Éclairs,Froyo,Gingerbread,Honeycomb,IceCream,JellyBean,Kitcat,Lollipop,Marshmallowandsoon.HISTORICALPROCESSDevelopmentTimeline103HISTORICALPROCESSDevelopmentTimeline113Lollipop06/2014Marshmallow08/2015HISTORICALPROCESSCorrespondingVersionTag123Lollipop06/2014Marshmallow08/2015AndroidBetaAndroid1.xAndroid2.xAndroid3.xAndroid4.xAndroid5.xAndroid6.x0.50.91.51.62.0,2.1,2.22.33.04.04.1,4.24.45.0,…6…,…HISTORICALPROCESSInterfaceChanging133AndroidBetaHISTORICALPROCESSInterfaceChanging143Android1.0HISTORICALPROCESSInterfaceChanging153Android1.5HISTORICALPROCESSInterfaceChanging163Android1.6HISTORICALPROCESSInterfaceChanging173Android2.0,2.1HISTORICALPROCESSInterfaceChanging183Android2.2HISTORICALPROCESSInterfaceChanging193Android2.3HISTORICALPROCESSInterfaceChanging203Android3.0HISTORICALPROCESSInterfaceChanging213Android4.0HISTORICALPROCESSInterfaceChanging223Android4.1HISTORICALPROCESSInterfaceChanging233Android4.2HISTORICALPROCESSInterfaceChanging243Android4.4HISTORICALPROCESSInterfaceChanging253AndroidLHISTORICALPROCESSInterfaceChanging263AndroidMHISTORICALPROCESSEastereggs273FromAndroid2.2on,ineveryAndroidsystemtherewasaninteresting“paintedeggshell”hidinginitwaitingforustofindout.Justpressthe“About”inthesettingsrepeatedlyandrapidly,somethingawesomewillappearonscreen.PRESENTSITUATION284Aperiodicaldatain11,2012to2,2013showsthesmartphonesalesinUS.PRESENTSITUATION294Overtheageof13mobilephoneusersintheuseofmobilephonesysteminUSPRESENTSITUATION304Whileintheworldwidesmartphoneshipments:Android:70.1%IOS:21%Other:8.9%PRESENTSITUATION314Thechartshowsin06,2011to03,2013howthedailyandroiduserquantityascend.Unit:billionPRESENTSITUATION324PRESENTSITUATION334TheLinechartshowsthetotalnumberofAPPsbyAppstoreRisingyearbyyear.CHALLENGES345WhenAndroiddevelops,themostpowerfulopponentAppleeyeswithhostility.Duringthefirsthalfof2015,inUS:iPhoneusers:8,200,000↑Androidusers:1,600,000↑BlackBerry:1,000,000↓WindowsPhone:700,000↓CHALLENGES355CHALLENGES365IncomegapDEVELOPTENDENCY376InteractionpatternFlexismartphoneGoogleserviceBacktoWEBWearabledevices…THANKSFORLISTENING38