iOS人机交互规范(16)

时间:2025-04-04

iOS人机交互规范,为iPhone,iPad开发人员提供设计规范

Forthemostpart,userscan’tchangethesizeoftheviewport(theareathatdisplayscontent).Onthedesktop,usersresizetheviewportwhentheyresizethebrowserwindow.OniOS-baseddevices,theviewportdoesnotresizeunlessthedeviceorientationchanges.iOSuserscanchangethescaleoftheviewportbyzoominginandout,andtheycanpanthewebpage.OniPad,usersaremuchlesslikelytozoomwebcontentthantheyareoniPhone(shown

below).

eofcookiescanstreamlineuserinteractionwithwebcontentbysavingtheuser’scontext,preferences,andpreviouslyentereddata.

SafarioniOSdoesnotsupportFlash,Java(includingJavaapplets),orthird-partyplug-inswithinwebcontent.Instead,SafarioniOSsupportstheHTML5<audio>and<video>tagstoprovideaudioandvideostreaming,andJavaScriptandCSS3transforms,transitions,andanimationstodisplayanimatedcontent.

SafarioniOSinterpretsmostgesturesastargetingthewaythedevicedisplayscontent,notthecontentitself.Thetap,whichisanalogoustoasinglemouseclick,cancauseSafarioniOStosendtheonclickeventtoawebpage.Therearenoanalogsforothermouse-basedgestures,suchashover.

SafarioniOSallowswebappstoruninfull-screenmode.Webappsthatlaunchfromawebclipiconontheuser’sHomescreencanhidetheUIforSafarioniOS,sothattheylookmorelikenativeapplications.

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