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Is there any possible way to transfer data from an Iphone to the computer when the Iphone is tethered and an application is open. Basically, the Iphone needs to be able to effect files on the computer.
Currently, there're two options for you:
iTunes File Sharing - This allows the user to browse the "Documents" directory of your application in iTunes. Your application will be in the background during this time. (the Sync screen takes priority) This however only works for changing files on the iOS device. You'll find a tutorial for that here.
Wireless Transfer - You could create a HTTP Server and allow the user to change files via their web browser or client application. This way, your app would not be in the background and you could technically monitor any changes you like. You can easily implement this for Mac OS X or iOS. For a tutorial for that, see here.
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Offload App option only removes data and documents but I need the exact opposite for testing and developing iOS apps.
Removing temporary app data:
Some apps on iOS allow you to clear cache from the settings apps itself by click of a button. But to make this come into effect, the particular app needs to be launched at least once in order to clear its cache.
Open the ‘Settings’ app on your iPhone
Scroll through the Settings and find the app you want to clear the cache of
Select the app and once again scroll to the bottom of the page
Now here you’ll find a toggle named ‘Clear temp data on next start’
Turn it on and launch that particular app from the homescreen to get rid of its cache
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I know it is possible to have an iOS app running in the background which transmits GPS data periodically.
I was wondering if the same is possible if a user is on a webpage in mobile safari. Can watchPosition be used even if the user is not actively on the webpage but the tab is open in mobile safari (i.e. in the background)?
Yes, it is possible, but you app would have to be running in the background for it to work. You would use the same Location Awareness API that Apple provides and run it in the background, so that even when your app closes, it is still running.
You can see the answer given for this question for this question.
By using the instructions laid out by Apple, you can achieve this, but your app has to be run for it to work. So if they never start your app, no location tracking.
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I just sent a new release of my app to AppStore and it was approved today.
But in very few devices when I'm trying to update by the AppStore, when it is installing the progress bar goes until the end, but when finish, it shows the message:
Unable to Download Application
<AppName> could not be installed at this time.
I'm worried if this can be a problem with my code or an issue form AppStore.
From the code, this app uses CoreData, but there's no change in the CoreData, only small enhancements
What really make me worried is that only few devices (2 at this moment) had this problem, and I tried in different networks and over 3G.
Does anybody has any idea? can it be an App problem?
It's probably an App Store problem.
You say you are worried about Core Data - but Core Data doesn't even matter before you install the app.
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We're trying to reproduce a bug which causes our app to crash when it accesses a M4P file (MPEG-4 Protected file, a DRM protected file from the old iTunes days. Ummmm, yeah.).
We got such a culprit file sent to us by one of our in-the-wild testers, and now we're trying to put it onto a test device in order to debug, but here's the snag: iTunes insists on authorizing the file using the AppleID that purchased it, otherwise it won't sync it to the device. We don't have the user's AppleID details, and I don't think it's appropriate to even ask him for it.
Is there some other way of getting that file onto the device? I'd rather not jailbreak the device, but am willing to consider that option.
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I'd like to know which framework you use to create mobile web applications that are - from a user's point of view - virtually indistinguishable from a native iOS app. Please provide a link do an actual application that has been built with said framework.
I mean more than just the look of a navigation bar and a back button, but an app that also feels like a native app, with the same smooth scrolling and transition animations of native apps.
To clarify: This is research in connection with this article: http://www.springenwerk.com/2011/09/thoughts-on-mobile-ui-design.html
The Financial Times app is indistinguishable. That said, I think they discontinued the App store app.
http://apps.ft.com/ftwebapp/
You don't even see the safari browser bar in the web app. I don't know how that works though. Not a web - dev.