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1、DetectingAPIUsageObstacles:AStudyofiOSandAndroidDeveloperQuestionsWeiWangandMichaelW.GodfreyDavidR.CheritonSchoolofComputerScienceUniversityofWaterloo,Waterloo,ON,Canadafw65wang,migodg@uwaterloo.caAbstract—Softwareframeworksprovidesetsofgenericfunc-Ihaveaver
2、ysimpleUIScrollViewexamplethatsimplydoesn'tdowhatit'stionalitiesthatcanbelatercustomizedforaspecifictask.Whensuposedto.Notsureifit'sabugwiththeAPIorabuginmycodedevelopersinvokeAPImethodsinaframework,theyoftenencounterobstaclesinfindingthecorrectusageoftheAPI,B
3、asically,I'vegotaUIViewControllerwithaUIScrollViewasit'sview.WhenIletalonetoemploybestpractices.PreviousresearchaddressesaddittotheUIWindowandchangetheorientationoftheiPadIlogoutthethislineofquestionsbyminingAPIusagepatternstoinduceUIScrollViewssize,whichisi
4、ncorrectly(?)reported.APIusagetemplates,byconductingandcompilinginterviewsofdevelopers,andbyinferringcorrelationsamongAPIs.IntagsAsked:July2010iosipaduiscrollvieworientationViewed:8422timesthispaper,weanalyzeAPI-relatedpostsregardingiOSandAndroiddevelopmentf
5、romaQ&Awebsite,stackoverflow:com.myproblemiswheneverirotatethedevice,yes!itrespondtotheorientationAssumingthatAPI-relatedpostsareprimarilyaboutAPIusagechangebutitgoesbacktothefirstpage.obstacles,wefindseveraliOSandAndroidAPIclassesthatappeartobeparticularlyli
6、kelytochallengedevelopers,evenokpicturethis...youarealreadyonthe10thpageofthescrollViewinportraitafterwefactoroutAPIusagehotspots,inferredbymodellingthenwhenyouswitchedtolandscapeitisonthefirstpageagain.APIusageofopensourceiOSandAndroidapplications.Foreachta
7、gsAPIwithusageobstacles,wefurtherapplyatopicminingtoolAsked:April2012objective-cxcodeuiscrollviewtopoststhataretaggedwiththeAPI,andwediscoverseveralViewed:451timesuiinterfaceorientationrepetitivescenariosinwhichAPIusageobstaclesoccur.Weconsiderourworkasastep
8、pingstonetowardsunderstandingAPIusagechallengesbasedonforum-basedinputfromamultitudeofFig.1.Excerptsfromtwopostsinstackoverflow.com.Bothpostershaddevelopers,inputthatisprohibitivelyexpensivetocol
