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1、标准文档Android:AProgrammer’sGuide1WhatIsAndroid1.1KeySkills&Concepts●Historyofembeddeddeviceprogramming●ExplanationofOpenHandsetAlliance●FirstlookattheAndroidhomescreenItcanbesaidthat,forawhile,traditionaldesktopapplicationdevelopershavebeenspoiled.Thisisnottosaythattraditionaldesktopapplicatio
2、ndevelopmentiseasierthanotherformsofdevelopment.However,astraditionaldesktopapplicationdevelopers,wehavehadtheabilitytocreatealmostanykindofapplicationwecanimagine.IamincludingmyselfinthisgroupingbecauseIgotmystartindesktopprogramming.Oneaspectthathasmadedesktopprogrammingmoreaccessibleistha
3、twehavehadtheabilitytointeractwiththedesktopoperatingsystem,andthusinteractwithanyunderlyinghardware,prettyfreely(oratleastwithminimalexceptions).Thiskindoffreedomtoprogramindependently,however,hasneverreallybeenavailabletothesmallgroupofprogrammerswhodaredtoventureintothemurkywatersofcellph
4、onedevelopment.NOTE：Irefertotwodifferentkindsofdevelopersinthisdiscussion:traditionaldesktopapplicationdevelopers,whoworkinalmostanylanguageandwhoseendproduct,applications,arebuilttorunonany“desktop”operatingsystem;andAndroiddevelopers,JavadeveloperswhodevelopfortheAndroidplatform.Thisisnotf
5、orthepurposesofsayingoneisbyanymeansbetterorworsethantheother.Rather,thedistinctionismadeforpurposesofcomparingthedevelopmentstylesandtoolsofdesktopoperatingsystemenvironmentstothemobileoperatingsystemenvironment,实用文案标准文档1.2BriefHistoryofEmbeddedDeviceProgrammingForalongtime,cellphonedevelop
6、erscomprisedasmallsectofaslightlylargergroupofdevelopersknownasembeddeddevicedevelopers.Seenasaless“glamorous”siblingtodesktop—andlaterweb—development,embeddeddevicedevelopmenttypicallygottheproverbialshortendofthestickasfarashardwareandoperatingsystemfeatures,becauseembeddeddevicemanufactur
7、erswerenotoriouslystingyonfeaturesupport.Embeddeddevicemanufacturerstypicallyneededtoguardtheirhardwaresecretsclosely,sotheygaveembeddeddevicedevelopersfewlibrariestocallwhentryingtointeractwithaspecificdevice.Embeddeddevicesdifferfromdesktopsintha
