2014/10/15 下午 10:10:59
iphone Programming Glossary: lazilyOptimizing a drawing (with finger touches) application for iPhone SDK http://stackoverflow.com/questions/1123306/optimizing-a-drawing-with-finger-touches-application-for-iphone-sdk draw a smooth path. Here's my current approach 1 I subclassed a UIView and added a poroperty to a CGLayer gets created lazily and is the same size as my UIView . 2 My UIView subclass responds to touch events by storing the current and last touch..
How to make UITabBarController load view controllers lazily? http://stackoverflow.com/questions/1197130/how-to-make-uitabbarcontroller-load-view-controllers-lazily to make UITabBarController load view controllers lazily I have a UITabBarController created programaticaly that manages 4 subclasses of UIViewController. Something like Create.. self window addSubview tabBar.view Is there a way to tell the UITabBarController to load the view controllers lazily ej when the user clicks one of the tab bar items or when tabBarController setSelectedIndex is called iphone share improve..
Adding unique objects to Core Data http://stackoverflow.com/questions/1236122/adding-unique-objects-to-core-data that detail exists add the poi to it. If it doesn't create the detail it has other properties that will be populated lazily . The problem with this is performance. Performing constant queries to Core Data is slow to the point where adding a list..
How can I encrypt CoreData contents on an iPhone http://stackoverflow.com/questions/1645007/how-can-i-encrypt-coredata-contents-on-an-iphone memory footprint than decrypting an entire database into memory. Additionally it will allow the decryption to be done lazily rather than all up front so your application will load much faster. Depending on the encryption used I would even expect..
CGImage/UIImage lazily loading on UI thread causes stutter http://stackoverflow.com/questions/1815476/cgimage-uiimage-lazily-loading-on-ui-thread-causes-stutter UIImage lazily loading on UI thread causes stutter My program displays a horizontal scrolling surface tiled with UIImageViews from left..
Preload sounds played via iPhone AudioServices http://stackoverflow.com/questions/1862281/preload-sounds-played-via-iphone-audioservices iphone audio share improve this question This is a well known problem. Everything in AudioServices is initialized lazily. I think that your best choice is between Core Audio or OpenAL. OpenAL might be overkill but it has a simple API. The oalTouch..
What exactly must I do in viewDidUnload? http://stackoverflow.com/questions/2261972/what-exactly-must-i-do-in-viewdidunload hierarchy including objects loaded with the nib file objects created in your viewDidLoad method and objects created lazily at runtime and added to the view hierarchy. Typically if your view controller contains outlets properties or raw variables..
Accessing View in awakeFromNib? http://stackoverflow.com/questions/2723042/accessing-view-in-awakefromnib this question One more answer It looks like you 胩e getting this behaviour because the controller loads the views lazily. The view is not loaded immediately it gets loaded the first time somebody calls the view accessor. Therefore at the time..
Asynchronous vs Synchronous vs Threading in an iPhone App http://stackoverflow.com/questions/371638/asynchronous-vs-synchronous-vs-threading-in-an-iphone-app the scenario. Say you have three options to drill down into each one having its own REST based resource. I can either lazily load each one with a synchronous request but that'll block the UI and prevent the user from hitting a back navigation button..
How to improve UIWebView scrolling performance? http://stackoverflow.com/questions/4060248/how-to-improve-uiwebview-scrolling-performance is technically possible just do webView.layer renderInContext but does not make a lot of sense. Tiled layers load lazily as do web views. You'd need a enormous amount of finetuned code to detect when the page finished loading then to cache things..
Need some help understanding transient properties in Core Data http://stackoverflow.com/questions/7504391/need-some-help-understanding-transient-properties-in-core-data grid is a way to find the contents of a particular space on the board addressed by x y coordinates. grid is built lazily and updated as long as it exists when a piece changes location. I'm not declaring grid as a transient property and everything..
Multiple Views within one XIB - iPhone SDK http://stackoverflow.com/questions/765521/multiple-views-within-one-xib-iphone-sdk and it will also use less memory at first. Then when the view changes you can load the XIB containing the new view lazily. This will incur a minor hitch when opening a view for the first time. If you're really trying to optimize memory use you..
Changing the position of custom UIButton in custom UITableViewCell http://stackoverflow.com/questions/8352530/changing-the-position-of-custom-uibutton-in-custom-uitableviewcell UITableViewCell subclass. Create and add the button to the cell's contentView in your init method or create and add it lazily via an accessor property. Override layoutSubviews and postion the button as desired. Something like this @implementation..
Implementing UIScrollView programmatically http://stackoverflow.com/questions/8909347/implementing-uiscrollview-programmatically @ content_iPhone ofType @ plist self.contentList NSArray arrayWithContentsOfFile path view controllers are created lazily in the meantime load the array with placeholders which will be replaced on demand NSMutableArray controllers NSMutableArray.. @ content_iPhone ofType @ plist self.contentList NSArray arrayWithContentsOfFile path view controllers are created lazily in the meantime load the array with placeholders which will be replaced on demand NSMutableArray controllers NSMutableArray..
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