multitasking
Should I use beginBackgroundTaskWithExpirationHandler: for all HTTP connections?
I am developing an iOS application that has the capability of uploading data to a remote endpoint.Because a good user experience would involve being able to leave the app to go do some other task whil[详细]
2023-03-27 00:22 分类:问答How to send my app in foreground after a Facetime (integrated) call?
I\'m trying to integrate Facetime in my app so basically what I would like to do is to press a button making a call and when it finishes come back to my app. I know that for the time being there are n[详细]
2023-03-26 16:52 分类:问答Multi instance vs Single instance application
I was asked this question in an interview. Why does firefox show开发者_高级运维 a single process in the task manager even when multiple instances of the application is open while Internet Explorer 8 a[详细]
2023-03-26 16:30 分类:问答When to delete files in NSTemporaryDirectory
I am building a multitasking application which includes a functionality for开发者_开发技巧 viewing large pdf files. In order to avoid downloading the file each time the user wants to view the file, i[详细]
2023-03-25 22:46 分类:问答How can I fix a display flash during a transition from background to foreground for my iPhone app
For an iPhone app I am working on, I reset the state if the app has been in the background too long. This is a lengthy process (1-2 seconds) so I display a progress indicator during the reset. Unfortu[详细]
2023-03-25 09:24 分类:问答How to save data before app enters multasking
Im trying to find a way开发者_如何学Go to save data before my app enters multitasking, i know how to save data, but i dont know what method to use to save it before the app enters multitasking.[详细]
2023-03-25 02:49 分类:问答iPhone - Send event to objects to tell them that the app is in background
I have some tasks that does some jobs, and I\'d like to route them an event when the app goes in background.[详细]
2023-03-22 03:46 分类:问答How to resume a CAAnimation after coming back from multitasking
in my app i have an array of CALayer that I have animated along a be开发者_如何学PythonzierPath. When I close and reopen the app my layers are not animating and not in the same position as before clos[详细]
2023-03-22 02:23 分类:问答Multitasking in iPhone 4,"application does not run in back ground" option in Xcode 3.2 info.plist
In Xcode 3.2 in INFO.PLIST we have option \"application does not run in back ground\" when we check this box and run the application in iPhone 4 ...every minimization leads to exiting of app.[详细]
2023-03-20 12:18 分类:问答Do not resume MPMoviePlayerController when application enters foreground
I am developing an iPhone application which plays the video using MPMoviePlayerController. When I switch to background(device with multi-tasking support), the video play is paused and when I bring my[详细]
2023-03-20 06:44 分类:问答