Yeah if you don't have correct viewport, and are using the 3.5 inch retina iphone simulator, you will get 2 device pixels per css pixel, and thus see the resolution you claim.
Also, even if you fix the viewport, I think that for efficiency reasons some web renderers will specifically treat the canvas element as lowdpi even on a highdpi device. I do not know the details of safari webview, but thats worth exploring if viewport doesn't fix the issue. One quick article I found that generally explains things to consider when working with canvas on highdpi is: http://www.html5rocks.com/en/tutorials/canvas/hidpi/ On Fri, Dec 6, 2013 at 10:54 AM, Andrew Grieve <agri...@chromium.org> wrote: > Problem with viewport <meta> tag? > > > On Fri, Dec 6, 2013 at 10:07 AM, James Jong <wjamesj...@gmail.com> wrote: > > > Are you targeting prior to iOS 5? > > -James Jong > > > > On Dec 6, 2013, at 9:49 AM, Maxime LUCE <max...@somatic.fr> wrote: > > > > > By default, Cordova ios project targets iOS 5+, could it be blocking ?? > > > > > > > > > Cordialement. > > > > > > > > > Maxime LUCE > > > > > > > > > max...@touchit.fr > > > 06 28 60 72 34 > > > http://touchit.fr > > > > > > > > > -----Original Message----- > > > From: mmo...@google.com [mailto:mmo...@google.com] On Behalf Of Michal > > Mocny > > > Sent: vendredi 6 décembre 2013 15:45 > > > To: dev > > > Subject: Re: iOS webview size > > > > > > 320 sounds like the width of the first three generations of iphone > > (though the height is not 240 but 480). Perhaps you are emulating an > older > > device? > > > > > > > > > On Fri, Dec 6, 2013 at 9:28 AM, Maxime LUCE <max...@somatic.fr> wrote: > > > > > >> Frame is fullscreen but frame content is sized > > >> > > >> > > >> Cordialement. > > >> > > >> > > >> Maxime LUCE > > >> > > >> > > >> max...@touchit.fr > > >> 06 28 60 72 34 > > >> http://touchit.fr > > >> > > >> > > >> -----Original Message----- > > >> From: James Jong [mailto:wjamesj...@gmail.com] > > >> Sent: vendredi 6 décembre 2013 14:47 > > >> To: dev@cordova.apache.org > > >> Subject: Re: iOS webview size > > >> > > >> Sounds like you have some customization in obj-c or the nib files. > > >> The frame should be fullscreen by default. > > >> -James Jong > > >> > > >> On Dec 6, 2013, at 8:25 AM, Maxime LUCE <max...@somatic.fr> wrote: > > >> > > >>> Hi, > > >>> > > >>> I will try to explain the issue more precisely. > > >>> When I launch my app using XCode in the iOS emulator, I can see that > > >>> my > > >> app is resized in a 320x240 frame. This behavior force iOS to resize > > >> every DOM elements to adjust to an arbitrary 320x240. > > >>> > > >>> I checked the behavior by putting a "alert(document.width) on start > > up". > > >>> > > >>> Someone could help me override this behavior ? I'm not an iOS nor > > >> objective C expert. > > >>> > > >>> > > >>> Cordialement. > > >>> ---------------------------- > > >>> Maxime LUCE > > >>> max...@touchit.fr > > >>> 06 28 60 72 34 > > >>> http://touchit.fr > > >>> > > >>> > > >>> Not sure what you mean. > > >>> > > >>> Are you saying you can only have a canvas with a max size of > > >>> 320x240? I > > >> have an app with a larger canvas than that. > > >>> > > >>> If that is what you are saying, be sure you are not trying to set > > >>> the > > >> canvas size just using CSS. > > >>> > > >>> For an example maybe have a look at my canvas demo: > > >>> > > >>> https://github.com/devgeeks/Canvas2ImageDemo > > >>> On 06/12/2013 12:06 pm, "Maxime LUCE" <max...@somatic.fr> wrote: > > >>> > > >>>> Hi everyone, > > >>>> > > >>>> It appears that on iOS, webview is restricted to a 320x240 canvas. > > >>>> > > >>>> Is it possible to automatically set canvas size using device > > >>>> screen's > > >> one ? > > >>>> > > >>>> Why is it not the default scenario ? > > >>>> > > >>>> Cordialement. > > >>>> ------------------------------- > > >>>> Maxime LUCE - Somatic > > >>>> maxime.l...@somatic.fr > > >>>> 06 28 60 72 34 > > >>>> > > >> > > >> > > > > >
