2014/10/15 下午 10:10:34

iphone Programming Glossary: invokes

Passing Values Between Master and Detail in UISplitViewController Using Storyboards

http://stackoverflow.com/questions/10019422/passing-values-between-master-and-detail-in-uisplitviewcontroller-using-storyboa

nonatomic copy NSString name @property nonatomic copy NSString occupation @end The MasterViewController left side invokes the didSelectCustomer method as shown below void tableView UITableView tableView didSelectRowAtIndexPath NSIndexPath indexPath..

iPhone: didSelectRowAtIndexPath not invoked

http://stackoverflow.com/questions/2305781/iphone-didselectrowatindexpath-not-invoked

When is an autoreleased object actually released?

http://stackoverflow.com/questions/2498330/when-is-an-autoreleased-object-actually-released

release autorelease copy. To answer your question about what the runloop is in your application's main function it invokes UIApplicationMain . You can imagine UIApplicationMain looks something like this void int UIApplicationMain int argc char..

What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?

http://stackoverflow.com/questions/2807137/what-is-the-relationship-between-uiviews-setneedslayout-layoutifneeded-and-lay

used. Thanks. What gets me confused is that if I send my custom view a setNeedsLayout message the very next thing it invokes after this method is layoutSubviews skipping right over layoutIfNeeded. From the docs I would expect the flow to be setNeedsLayout..

iPhone — is initWithCoder an exception to the usual designated initializer design pattern?

http://stackoverflow.com/questions/2944823/iphone-is-initwithcoder-an-exception-to-the-usual-designated-initializer-desi

directly or indirectly invoke the designated initializer and the designated initializer through a message to super invokes the designated initializer of its superclass. emp added In principle the designated initializer is the one init method that..

Launch an app from a link in an SMS

http://stackoverflow.com/questions/3512664/launch-an-app-from-a-link-in-an-sms

taps on the link provided in the special SMS and that launches the application. Something like a special link which invokes the app in the device... I have stumbled into an article that shows how message body can be created and sent programmatically..

Why do Cocoa-Touch class ivars have leading underscore character?

http://stackoverflow.com/questions/3544067/why-do-cocoa-touch-class-ivars-have-leading-underscore-character

_ for anything private leading to the proliferation of _FooLog calls in a large chunk of our codebase even though it invokes undefined behaviour. The only reason to do it is to discourage direct ivar access in your own class. Prevent ivar access..

UITableView dequeueReusableCellWithIdentifier Theory

http://stackoverflow.com/questions/3552343/uitableview-dequeuereusablecellwithidentifier-theory

reuse queue. When a new cell is needed it looks in the que if a cell with the same identifier is available it invokes prepareForReuse method on that cell and it removes itself from the queue. iphone uitableview uitableviewcell reuseidentifier..

Subclassing NSOperation to be concurrent and cancellable

http://stackoverflow.com/questions/3859631/subclassing-nsoperation-to-be-concurrent-and-cancellable

the background. As such you generally do not need to override the NSOperation start method since by default it simply invokes the main method. That is the method you should be overriding. The default start method already handles setting isExecuting..

CGContextDrawImage very slow on iPhone 4

http://stackoverflow.com/questions/3915490/cgcontextdrawimage-very-slow-on-iphone-4

on iPhone 3GS 17FPS. But on iPhone 4 calling subj method is very slow and total FPS is 1.5 profiler says that on 3GS invokes CGSBlendBGRA8888toRGBA8888 which takes 23 of total time. on 4G same code invokes argb32_sample_RGBA32 argb32_image_mark.. FPS is 1.5 profiler says that on 3GS invokes CGSBlendBGRA8888toRGBA8888 which takes 23 of total time. on 4G same code invokes argb32_sample_RGBA32 argb32_image_mark which takes ~90 . wow Color space for bitmap is CGColorSpaceCreateDeviceRGB. And..

Invoke native date picker from web-app on iOS/Android

http://stackoverflow.com/questions/4946919/invoke-native-date-picker-from-web-app-on-ios-android

and iOS. I suppose that in the future the mobile OS's soft keyboards will include date pickers and such just as select invokes the native select today. Since this isn't implemented on either Android or iOS but is implemented in native UI is it possible..

NSMutableString as retain/copy

http://stackoverflow.com/questions/4995254/nsmutablestring-as-retain-copy

to consider some other things as well now we get to the NSMutable type details. the implementation of property syntax invokes copy . as we know NSMutableString copy returns an immutable NSString. this is an issue waiting to happen for a naive implementation..

Show UITabBar when UIViewController pushed

http://stackoverflow.com/questions/5072382/show-uitabbar-when-uiviewcontroller-pushed

forKey is invoked. It intercepts the key position and returns an animation from the right. If it's for another key it invokes the original implementation of the message which is now connected to the message defaultActionsForLayer forKey . Okay there..

What are the Dangers of Method Swizzling in Objective C?

http://stackoverflow.com/questions/5339276/what-are-the-dangers-of-method-swizzling-in-objective-c

frame Which will use the runtime to look up the implementation of my_setFrame . Once the implementation is found it invokes the implementation with the same arguments that were given. The implementation it finds is the original implementation of..

GCD, Threads, Program Flow and UI Updating

http://stackoverflow.com/questions/7290931/gcd-threads-program-flow-and-ui-updating

which calls a selector to update your UI. performSelectorInBackground Sample In this snippet I have a button which invokes the long running work a status label and I added a slider to show I can move the slider while the bg work is done. on click..

Why is object not dealloc'ed when using ARC + NSZombieEnabled

http://stackoverflow.com/questions/8408071/why-is-object-not-dealloced-when-using-arc-nszombieenabled

on for my project while debugging and this turned out to be the cause. Consider the following app logic 1 Users invokes action in RootViewController that causes a SecondaryViewController to be created and presented via presentModalViewController..