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2014/10/15 ¤U¤È 10:03:29
iphone Programming Glossary: accessibleiOS: Get pixel-by-pixel data from camera http://stackoverflow.com/questions/10865100/ios-get-pixel-by-pixel-data-from-camera camera I'm aware of AVFoundation and its capture support not too familiar though . However I don't see any readily accessible API to get pixel by pixel data RGB per pixel or similar . I do recall reading in the docs that this is possible but I don't..
Is it possible to get the atomic clock timestamp from the iphone GPS? http://stackoverflow.com/questions/1444456/is-it-possible-to-get-the-atomic-clock-timestamp-from-the-iphone-gps server. If the phone uses GPS as a time sync source it'll also be used to update the same system wide clock which is accessible via the above method. The CoreFoundation equivalent is something like CFAbsoluteTime now CFAbsoluteTimeGetCurrent Which..
How can I encrypt CoreData contents on an iPhone http://stackoverflow.com/questions/1645007/how-can-i-encrypt-coredata-contents-on-an-iphone to decrypt the data each time the app is launched. The purpose of the encryption is to keep the data from being accessible if the user loses the phone. For speed reasons I would prefer to encrypt and decrypt the entire file at once rather than..
http://stackoverflow.com/questions/165539/iphone-proximity-sensor to cast a shadow over the ear speaker you can make the display shut off. When you asked this question it was not accessible via the public API. You can now access the sensor's state via UIDevice's proximityState property. However it wouldn't be..
http://stackoverflow.com/questions/1656476/new-to-core-data-for-iphone managed object context MOC the managed object model MOM and the persistent store coordinator PSC . These need to be accessible wherever you want Core Data available so either in your app delegate or more preferably in the controller or data source..
Adding Core Data to existing iPhone project http://stackoverflow.com/questions/2032818/adding-core-data-to-existing-iphone-project the application by pressing the Home button. Typical reasons for an error here include The persistent store is not accessible The schema for the persistent store is incompatible with current managed object model Check the error message to determine..
How to share custom data between iPhone applications? http://stackoverflow.com/questions/220630/how-to-share-custom-data-between-iphone-applications far as I know there isn't a safe way to do this other than storing your data on a remote server. If you need the data accessible without a data connection then you would need to figure out a way to sync data between the individual apps and the remote..
iPhone: How to Pass Data Between Several Viewcontrollers in a Tabbar App http://stackoverflow.com/questions/2363777/iphone-how-to-pass-data-between-several-viewcontrollers-in-a-tabbar-app You need a data model object that stores the data for application. A data model is a customized standalone object accessible from anywhere in the application. The data model object knows nothing about any views or view controllers. It just stores..
iPhone HTML5 App Scrolling Question http://stackoverflow.com/questions/3128196/iphone-html5-app-scrolling-question 'touchmove' stopScrolling false Edit UIWebView is mostly private from the Objective C side but fairly accessible from the javascript side. You can inject javascript if you do not control the content being loaded. share improve this..
iOS 4: Remote controls for background audio http://stackoverflow.com/questions/3456435/ios-4-remote-controls-for-background-audio I've set the appropriate Info.plist settings correctly and have an AVAudioPlayer object in my app delegate which is accessible from everywhere. When the user plays a song I replace the AVAudioPlayer with a new one initialized with the song and play..
Is there a simple way to edit / modify a UILocalNotification http://stackoverflow.com/questions/3842252/is-there-a-simple-way-to-edit-modify-a-uilocalnotification
http://stackoverflow.com/questions/4595955/protecting-the-app-sandbox
http://stackoverflow.com/questions/5014176/mpmoviewplayercontroller-fullscreen-playback-rotation-with-underlying-uiviewcont I've found somewhere that MPMoviePlayerController creates separate UIWindow for fullscreen playback which should be accessible via UIApplication sharedApplication windows . This does explain why transformation is not applied during fullscreen playback...
What do “Dirty” and “Resident” mean in relation to Virtual Memory? http://stackoverflow.com/questions/5176074/what-do-dirty-and-resident-mean-in-relation-to-virtual-memory your application may require that a lot of different items be tracked in memory it may only require a small subset be accessible at any point in time. Keeping this number low means your application has lower loading times plays well with others and..
How to define a global variable that can be accessed anywhere in my application? [duplicate] http://stackoverflow.com/questions/6065965/how-to-define-a-global-variable-that-can-be-accessed-anywhere-in-my-application this question If you are having multiple views in your application and in that case you want to have a variable accessible to every view you should always create a Model Data class and define the variable in it. Something like this DataClass.h..
Using a singleton to create an array accessible by multiple views http://stackoverflow.com/questions/6324732/using-a-singleton-to-create-an-array-accessible-by-multiple-views a singleton to create an array accessible by multiple views It's a classic problem. I would like to access an array of objects from anywhere within my app. I would..
iOS: How to store username/password within an app? http://stackoverflow.com/questions/6972092/ios-how-to-store-username-password-within-an-app question You should always use Keychain to store usernames and passwords and since it's stored securely and only accessible to your app there is no need to delete it when app quits if that was your concern . Apple provides sample code that stores..
iCloud basics and code sample [closed] http://stackoverflow.com/questions/7795629/icloud-basics-and-code-sample the same file at all times one in the directory of my app one in the iCloud demon directory of my device which is also accessible if offline and one in the cloud Apps use the same technologies to manage files and directories in iCloud that they do for..
When to use properties in objective C? http://stackoverflow.com/questions/8194281/when-to-use-properties-in-objective-c share improve this question You technically only need to use properties for values that are intended to be accessible from other classes but many find it easier to use retained properties for all pointer type instance variables so that the..
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