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2014/10/15 ¤U¤È 10:12:33
iphone Programming Glossary: periodicallyobjective c - Detect when user change the app's notifications settings http://stackoverflow.com/questions/10191006/objective-c-detect-when-user-change-the-apps-notifications-settings this question There is no delegate. You need to query the UIApplication property enabledRemoteNotificationTypes periodically for example in applicationDidBecomeActive . For details check these answers Determine on iPhone if user has enabled push..
MPMoviePlayerController & .m3u8 playlist http://stackoverflow.com/questions/1665151/mpmovieplayercontroller-m3u8-playlist If the .m3u8 file doesn't contain an #EXT X ENDLIST directive then the client assumes the source is a live stream and periodically re fetches the .m3u8 to find new media files to download. The .ts files are MPEG 2 trasnsport stream files that contain..
Periodic iOS background location updates http://stackoverflow.com/questions/19042894/periodic-ios-background-location-updates kCLLocationAccuracyBest self.locationManager setDistanceFilter kCLDistanceFilterNone All I'm doing is periodically toggling the accuracy to get a high accuracy coordinate every few minutes and because the locationManager hasn't been stopped..
Autocomplete search example for iPhone http://stackoverflow.com/questions/2077404/autocomplete-search-example-for-iphone of how to implement an autocomplete search interface on the iPhone. I am assuming I will need to use a NSTimer to periodically check what has been typed and then submit that partial string to my data source and then display those. I need to connect..
Why is NSUserDefaults not saving my values? http://stackoverflow.com/questions/2622754/why-is-nsuserdefaults-not-saving-my-values device your User Defaults might get saved but there's a good chance they won't. NSUserDefaults persists any changes periodically and if you terminate the process before they've been persisted they'll be gone. You can force the save by calling NSUserDefaults..
Share background view between tabs on a UITabBarController http://stackoverflow.com/questions/2645666/share-background-view-between-tabs-on-a-uitabbarcontroller without having to set the same background on all the views I want to put a view in the background that periodically does a very short non resource intensive animation. When switching tabs I'd like that animation to persist. I've read how..
iPhone: Detecting user inactivity/idle time since last screen touch http://stackoverflow.com/questions/273450/iphone-detecting-user-inactivity-idle-time-since-last-screen-touch like this NSTimeInterval timeElapsed UIApplication sharedApplication .idleTimeElapsed Then I could set up a timer and periodically check this value and take some action when it exceeds a threshold. Hopefully that explains what I'm looking for. Has anyone..
how to update MKPolyline / MKPolylineView? http://stackoverflow.com/questions/3171572/how-to-update-mkpolyline-mkpolylineview to update MKPolyline MKPolylineView I am trying to create a polyline MKPolyline overlay that updates periodically to simulate the movement of an object. I can achieve this by removing the old overlay updating the polyline and adding the..
How to make a chat system on iPhone? http://stackoverflow.com/questions/3380851/how-to-make-a-chat-system-on-iphone time and the most basic question is how to efficiently check for new messages Would I need to simply poll the server periodically Or is there a way I could trigger an event on the phone from the server whenever there is some new content to pay attention..
http://stackoverflow.com/questions/4117182/mkoverlay-view-is-blurred lined up in the right place and I know that the drawMapRect method in the subclass of MKOverlayView is being called periodically I just can't seem to get the image to render properly. It's totally blurry almost beyond recognition. I also know the image..
iPhone: Get warning when battery power is very low http://stackoverflow.com/questions/4677515/iphone-get-warning-when-battery-power-is-very-low battery level property from UIDevice . If the battery level is less than 5 show an alert for example. You could poll periodically for the battery level in your app delegate for example. UIDevice myDevice UIDevice currentDevice myDevice setBatteryMonitoringEnabled..
iOS Development: How can I induce low memory warnings on device? http://stackoverflow.com/questions/4717138/ios-development-how-can-i-induce-low-memory-warnings-on-device simulator. Thanks so much iphone ipad ios share improve this question To test on a device just add some code that periodically allocates large chunks of memory without freeing it i.e. leak on purpose . You can do this in a separate thread or in response..
http://stackoverflow.com/questions/4947556/what-is-a-runloop explains it in detail . However in your case you don't need a thread . It sounds like all you are doing is periodically updating a label in the UI something that isn't terribly compute intensive. Just schedule your timer in the main thread..
Can you use cancel/isCancelled with GCD/dispatch_async? http://stackoverflow.com/questions/5449469/can-you-use-cancel-iscancelled-with-gcd-dispatch-async though your implementation of cancellation would be largely the same you'd still have to check self.isCancelled periodically to see whether you should abandon the space ship construction. The only concern I have with your implementation of the CHECKER..
Best Practice for NSUserDefaults synchronize http://stackoverflow.com/questions/5600859/best-practice-for-nsuserdefaults-synchronize
http://stackoverflow.com/questions/6851660/version-vs-build-in-xcode-4 both build and update the source file that includes your build number. Note that with the agvtool method you may still periodically get failed canceled builds with no errors. For this reason I don't recommend using agvtool with this script. Nevertheless..
http://stackoverflow.com/questions/8374006/ios-5-storage-guidelines Because these files do use on device storage space your app is responsible for monitoring and purging these files periodically. So Since application bundle is not backup on icloud. So Do i need to move my all audio files from application bundle to..
Application rejected because of not following iOS Data Storage Guidelines http://stackoverflow.com/questions/8818117/application-rejected-because-of-not-following-ios-data-storage-guidelines Because these files do use on device storage space your app is responsible for monitoring and purging these files periodically. For example only content that the user creates using your app e.g. documents new files edits etc. may be stored in the..
Best practices for in-app database migration for Sqlite http://stackoverflow.com/questions/989558/best-practices-for-in-app-database-migration-for-sqlite to the database name e.g. Database_v1 . iphone sqlite share improve this question I maintain an application that periodically needs to update a sqlite database and migrate old databases to the new schema and here's what I do For tracking the database..
How to get notified of UITableViewCell move start and end http://stackoverflow.com/questions/9898388/how-to-get-notified-of-uitableviewcell-move-start-and-end to get notified of UITableViewCell move start and end I have a UITableView in my iOS app that gets refreshed periodically. The user is also able to move the tableview rows at all times the tableview is always in editing mode . I want to stop..
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