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1、ThedevelopmentandapplicationofAndroidIntroductionAndroidAndroid(pronounced:[the'ændrɔid])isaLinux-basedopensourceoperatingsystem,mainlyusedinportabledevices.HandhelddeviceUniondevelopedandledbyGoogleandopen.ThereisnounifiedChinesename,"Andrews"and"securitycausedby"i
2、sanothernamepopularinmainlandChina.AndroidoperatingsystemwasoriginallyfoundedbyAndyRubin(AndyRubin),primarilysupportthephone.August17,2005GoogleInc.(Google)acquisitionofacapitalinjection.November5,2007,GoogleInc.and84hardwaremanufacturers,softwaredevelopersandteleco
3、moperatorscomposedoftheopenhandhelddeviceAlliance(OpenHandsetAlliance)tojointlydevelopimprovedAndroidoperatingsystemandtheproductionofsmartphonesequippedwithAndroid,andgraduallyextendedtotheTabletPCandotherareas.Subsequently,theAndroidhasaccesstotheApacheopensourcel
4、icense,Googlehasreleaseditssourcecode.Atthesametime,theoneresponsibleforthefurtherdevelopmentandmaintenanceoftheAndroidoperatingsystemAndroidOpenSourceProjectalsobeenestablished(AOSP).AndroidkernelbasedonLinux,inadditiontooutsidethekernel,themiddletier,databasemetad
5、ata,andtheC/C++towritetheAPIandapplicationframework.AndroidapplicationsthatusuallyJavadatabasepreparedonthebasis,runtheprogram,theapplicationcodewillbeimmediatelytransformedintotheDalvikdex-code(theDalviktheExecutable),thentheAndroidoperatingsystemthroughtheuseof-ti
6、mecompilationoftheDalvikvirtualmachinetooperation.InadditiontotheopenhandhelddeviceAlliance,AndroidalsohasmanyoftheopensourcecommunityofdevelopersfromaroundtheworldresponsiblefordevelopingAndroidapplicationsandthird-partyAndroidoperatingsystemtoextendandexpandthefun
7、ctionalityandperformanceoftheAndroid.AsofOctober2011,withover300,000certifiedapplicationontheAndroidmarket,thee-marketapplicationdownloadstheamountisalsoinDecember2011toreach10billion.BecauseAndroidisopen,soitcanthroughathirdpartywebsitetodownloadandinstallapplicati
8、onsthatarenotintheelectronicmarket.Theendof2010,datashowthatonlytheformallaunchoftwoyearsoftheoperatingsystemAndroidmarketsharehassurpasse
