Re: iOS Calendar Question
Re: iOS Calendar Question
- Subject: Re: iOS Calendar Question
- From: Mike Abdullah <email@hidden>
- Date: Tue, 01 Oct 2013 14:23:08 +0100
On 1 Oct 2013, at 14:09, Dave <email@hidden> wrote:
>
> On 1 Oct 2013, at 12:16, Mike Abdullah <email@hidden> wrote:
>
>>
>> On 1 Oct 2013, at 12:02, Dave <email@hidden> wrote:
>>
>>> Hi All,
>>>
>>> This had reared it's ugly head again! I have been asked to add an event to the Calendar WITHOUT asking the user for permission as the Standard Manner. I basically said it couldn't be done based on feedback from here. However, I've was today shown this (See link below) and asked "if they can do it, why can't you?".
>>>
>>> http://m.gunwharf-quays.com/whats-on/policing-through-ages
>>>
>>> If you open the above link on an iPhone and then click the Add to Calendar button, you will that it appears to add an event to the calendar WITHOUT asking the user for permission! How does it manage to do it? I thought that the OS would intercept any Calendar access calls and show the Alert Box and ask the user for permission to access the Calendar, but this doesn't seem to be the case here. Is this because it's being run in Safari? Can I get the same behaviour from an iOS Native App?
>>
>> I believe the important part here is that the user *has* to explicitly say they want to add the event.
>
> Yes, but that's only the way that web site works, it could add it without any user interaction.
No, the web site/app *has* to let Safari do the actual adding. All the event UI is provided by Safari. There's no way for it to add the event without any user interaction.
> Also, in my native app I'd put up something similar, so what's the difference? You can let a web site do it, but a native app? Seems to me that there is way more scope for badness in a web app than in a App that has been downloaded from the App Store, apart from anything else, you can erase the app if you want to!
The web app is completely sandboxed by Safari to only allow this one specific interaction. Regular apps have a slightly different sandbox which operates on a broad policy of "access to the whole calendar, yes or no?"
Apple could offer a UI using XPC such that only it is privileged to write to the calendar, using the same workflow as Safari (and leaving your app itself without access to the calendar). But it appears that's not the case at present; feel free to file a radar requesting it!
_______________________________________________
Cocoa-dev mailing list (email@hidden)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden