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2014/10/15 ¤U¤È 10:12:29
iphone Programming Glossary: partsWhere to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application object context is already a model controller. It also gives you the ability to access other parts of the stack if needs be. Moreover in some situations as described in the documentation you might want..
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:] http://stackoverflow.com/questions/2244147/disabling-implicit-animations-in-calayer-setneedsdisplayinrect the amount of drawing I need to do so I'm using setNeedsDisplayInRect to update just the changed parts. This is working splendidly. However when the graphics system updates my layer it's transitioning from..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how in the code. The code for all corners is there so use that as a starting point and delete the parts that create corners you don't need. Note that you can make rectangles with 2 or 3 rounded corners too..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults my class pretty straight forward I know it works in making my objects. So here is the relevant parts of the AppDelegate file where I call the encryption and decrypt functions @class MainViewController.. Player obj Player loadCustomObjectWithKey NSString key @end And then the important parts of the implementation file #import MagicApp201AppDelegate.h #import MainViewController.h #import Player.h..
Do you need to create an NSAutoreleasePool within a block in GCD? http://stackoverflow.com/questions/4141123/do-you-need-to-create-an-nsautoreleasepool-within-a-block-in-gcd CH102 SW1 If your block creates more than a few Objective C objects you might want to enclose parts of your block ™s code in an @autorelease block to handle the memory management for those objects. Although..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates This is a pretty complicated question so I created a new tab based project which just includes the parts of my app I'm having trouble with here. You can download it from http www.servinitup.net CustomCalloutAnnotation.zip..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c way this differs from malloc and free is that any given object doesn't need to worry about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along..
Is there an iPhone SDK API for twitter? http://stackoverflow.com/questions/757649/is-there-an-iphone-sdk-api-for-twitter something similar for twitter.com and other social services Meaning these will look like native parts of your app objective c iphone share improve this question Try MGTwitterEngine share improve this..
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 bottleneck has moved from the pixel reading to the OpenGL ES processing and actual movie encoding parts of the pipeline. On an iPhone 4S this allows you to write 1080p video at a full 30 FPS. My implementation..
Where to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application here is as a model controller. With Core Data the managed object context is already a model controller. It also gives you the ability to access other parts of the stack if needs be. Moreover in some situations as described in the documentation you might want to use a different context to perform a discrete set of actions...
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:] http://stackoverflow.com/questions/2244147/disabling-implicit-animations-in-calayer-setneedsdisplayinrect code in its drawInContext method. I'm trying to minimize the amount of drawing I need to do so I'm using setNeedsDisplayInRect to update just the changed parts. This is working splendidly. However when the graphics system updates my layer it's transitioning from the old to the new image using a cross fade. I'd like it..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how the CGContextAddArc calls and deleting some of the radius values in the code. The code for all corners is there so use that as a starting point and delete the parts that create corners you don't need. Note that you can make rectangles with 2 or 3 rounded corners too if you want. The code's not perfect but I'm sure you can tidy..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults dealloc name release life release super dealloc @end So that's my class pretty straight forward I know it works in making my objects. So here is the relevant parts of the AppDelegate file where I call the encryption and decrypt functions @class MainViewController @interface MagicApp201AppDelegate NSObject UIApplicationDelegate.. retain MainViewController mainViewController void saveCustomObject Player obj Player loadCustomObjectWithKey NSString key @end And then the important parts of the implementation file #import MagicApp201AppDelegate.h #import MainViewController.h #import Player.h @implementation MagicApp201AppDelegate @synthesize window..
Do you need to create an NSAutoreleasePool within a block in GCD? http://stackoverflow.com/questions/4141123/do-you-need-to-create-an-nsautoreleasepool-within-a-block-in-gcd OperationQueues.html# apple_ref doc uid TP40008091 CH102 SW1 If your block creates more than a few Objective C objects you might want to enclose parts of your block ™s code in an @autorelease block to handle the memory management for those objects. Although GCD dispatch queues have their own autorelease pools they..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates I've posted. How about some reputation points Update #4 This is a pretty complicated question so I created a new tab based project which just includes the parts of my app I'm having trouble with here. You can download it from http www.servinitup.net CustomCalloutAnnotation.zip Feel free to open it up need to add your own..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c then that object's memory is freed by the system. The basic way this differs from malloc and free is that any given object doesn't need to worry about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing according to the rules when one piece..
Is there an iPhone SDK API for twitter? http://stackoverflow.com/questions/757649/is-there-an-iphone-sdk-api-for-twitter
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 reads allows me to encode 720p video at 20 FPS now and the bottleneck has moved from the pixel reading to the OpenGL ES processing and actual movie encoding parts of the pipeline. On an iPhone 4S this allows you to write 1080p video at a full 30 FPS. My implementation can be found within the GPUImageMovieWriter class within..
Checkbox image toggle in UITableViewCell http://stackoverflow.com/questions/1171476/checkbox-image-toggle-in-uitableviewcell that has an image on the left which can be toggled. The image should be tappable and act as a toggle checkbox . My parts I'm struggling with are How do I detect taps on the image and handle those differently to didSelectRowAtIndexPath How do..
Where to place the “Core Data Stack” in a Cocoa/Cocoa Touch application http://stackoverflow.com/questions/1267520/where-to-place-the-core-data-stack-in-a-cocoa-cocoa-touch-application With Core Data the managed object context is already a model controller. It also gives you the ability to access other parts of the stack if needs be. Moreover in some situations as described in the documentation you might want to use a different..
How to save the content in UIWebView for faster loading on next launch? http://stackoverflow.com/questions/1343515/how-to-save-the-content-in-uiwebview-for-faster-loading-on-next-launch don't have to fetch from the web again for the full page The page itself already have some ajax mechanism that updates parts of itself automatically. iphone html url share improve this question There are a bunch of articles about the way the..
Encrypted NSData to NSString in obj-c? http://stackoverflow.com/questions/1417893/encrypted-nsdata-to-nsstring-in-obj-c Perform AES decryption on the data then create and return an NSString. It's really just a matter of chaining the two parts together and performing them in reverse on the way out. From my previous answer you can modify encryptString withKey to..
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:] http://stackoverflow.com/questions/2244147/disabling-implicit-animations-in-calayer-setneedsdisplayinrect trying to minimize the amount of drawing I need to do so I'm using setNeedsDisplayInRect to update just the changed parts. This is working splendidly. However when the graphics system updates my layer it's transitioning from the old to the new..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how of the radius values in the code. The code for all corners is there so use that as a starting point and delete the parts that create corners you don't need. Note that you can make rectangles with 2 or 3 rounded corners too if you want. The code's..
How to store custom objects in NSUserDefaults http://stackoverflow.com/questions/2315948/how-to-store-custom-objects-in-nsuserdefaults dealloc @end So that's my class pretty straight forward I know it works in making my objects. So here is the relevant parts of the AppDelegate file where I call the encryption and decrypt functions @class MainViewController @interface MagicApp201AppDelegate.. void saveCustomObject Player obj Player loadCustomObjectWithKey NSString key @end And then the important parts of the implementation file #import MagicApp201AppDelegate.h #import MainViewController.h #import Player.h @implementation..
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 any views or view controllers. It just stores data and the logical relationships between that data. When different parts of the app need to write or read data they right and read to the data model. In your case view1 would save its data to the..
Change iPhone UISlider bar image http://stackoverflow.com/questions/2379326/change-iphone-uislider-bar-image
iPad/iPhone browser crashing when loading images in Javascript http://stackoverflow.com/questions/2986039/ipad-iphone-browser-crashing-when-loading-images-in-javascript was written to test my solution so you'll have to figure out how to apply it to your own code. The code comes in three parts which I will explain below but the only really important part is imgStoredImage.src strNullImage loadNextImage simply loads..
Getting a screenshot of a UIScrollView, including offscreen parts http://stackoverflow.com/questions/3539717/getting-a-screenshot-of-a-uiscrollview-including-offscreen-parts a screenshot of a UIScrollView including offscreen parts I have a UIScrollView decendent that implements a takeScreenshot method that looks like this void takeScreenshot CGRect..
Do you need to create an NSAutoreleasePool within a block in GCD? http://stackoverflow.com/questions/4141123/do-you-need-to-create-an-nsautoreleasepool-within-a-block-in-gcd doc uid TP40008091 CH102 SW1 If your block creates more than a few Objective C objects you might want to enclose parts of your block ™s code in an @autorelease block to handle the memory management for those objects. Although GCD dispatch queues..
Is it good practice to use AppDelegate for data manipulation and Handling? http://stackoverflow.com/questions/5155437/is-it-good-practice-to-use-appdelegate-for-data-manipulation-and-handling for a reference to a DatabaseManager. Alternatively you can pass around a reference to the DatabaseManager to the parts of the app that need it. This last approach does however cause more 'interface pollution' where you have to modify interfaces..
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing object to manage more than one view hierarchy or if you're using several view controllers to manage different parts of the same view hierarchy you're using UIViewController in a way which was never intended and which is likely to lead to..
How to check what day of the week it is (i.e. Tues, Fri?) and compare two NSDates? http://stackoverflow.com/questions/583692/how-to-check-what-day-of-the-week-it-is-i-e-tues-fri-and-compare-two-nsdate NSDateComponents components gregorian components units fromDate date then you can access individual parts of the date like this components year components month components day Or you can construct a new NSDate object using NSCalendar..
MKAnnotationView - Lock custom annotation view to pin on location updates http://stackoverflow.com/questions/6392931/mkannotationview-lock-custom-annotation-view-to-pin-on-location-updates points Update #4 This is a pretty complicated question so I created a new tab based project which just includes the parts of my app I'm having trouble with here. You can download it from http www.servinitup.net CustomCalloutAnnotation.zip Feel..
Understanding reference counting with Cocoa and Objective-C http://stackoverflow.com/questions/6578/understanding-reference-counting-with-cocoa-and-objective-c the system. The basic way this differs from malloc and free is that any given object doesn't need to worry about other parts of the system crashing because you've freed memory they were using. Assuming everyone is playing along and retaining releasing..
Is there an iPhone SDK API for twitter? http://stackoverflow.com/questions/757649/is-there-an-iphone-sdk-api-for-twitter
Faster alternative to glReadPixels in iPhone OpenGL ES 2.0 http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0 20 FPS now and the bottleneck has moved from the pixel reading to the OpenGL ES processing and actual movie encoding parts of the pipeline. On an iPhone 4S this allows you to write 1080p video at a full 30 FPS. My implementation can be found within..
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