iOS人机交互规范(13)
时间：2025-04-27
iOS人机交互规范,为iPhone,iPad开发人员提供设计规范
PlatformCharacteristics
PreferencesAreAvailableinSettings
Note MultitaskingisavailableoncertaindevicesrunningiOS4andlater.
Mostappsenterasuspendedstatewhentheytransitiontothebackground.SuspendedappsaredisplayedinthemultitaskingUI,whichprovidesaneffectivewaytofindrecentlyusedapps.ThemultitaskingUIappearsatthebottomofthescreen,belowtheUIofthecurrentlyrunningapportheHomescreen(shownherebelowtheiPhoneSettings
app).
Whenpeoplerestartasuspendedapp,itcaninstantlyresumerunningfromthepointwhereitquit,withouthavingtoreloaditsuserinterface.
Someapplicationsmightneedtocontinuerunninginthebackgroundwhileusersrunanotherappintheforeground.Forexample,usersmightwantanappthatplaysaudiotocontinueplayingwhilethey’reusingadifferentapptochecktheircalendarorhandleemail.
Tolearnhowtohandlemultitaskingcorrectlyandgracefully,see“Multitasking” (page 74).
PreferencesAreAvailableinSettings
PeoplesetcertainpreferencesforaniOSapplicationinthebuilt-inSettingsapplication.TheymustquitthecurrentappwhentheywanttoaccessthosepreferencesinSettings.
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