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2014/10/15 ¤U¤È 10:04:04
iphone Programming Glossary: assigningSetting action for back button in navigation controller http://stackoverflow.com/questions/1214965/setting-action-for-back-button-in-navigation-controller back button in a navigation controller. I've provided a target an action on the custom button. The odd thing is when assigning it though the backbutton attribute it doesn't pay attention to them and it just pops the current view and goes back to the..
iPhone 5 splashscreen not displaying correctly - Phonegap http://stackoverflow.com/questions/12450603/iphone-5-splashscreen-not-displaying-correctly-phonegap M_PI x 180.0 from the file PGViewController.m to my MainViewController.m file. After that XCode complained that I was assigning values to read only attributes so I edited the header file in PhoneGap.framework to make those two attributes readwrite...
Resizing UIimages pulled from the Camera also ROTATES the UIimage? http://stackoverflow.com/questions/1260249/resizing-uiimages-pulled-from-the-camera-also-rotates-the-uiimage UIimages pulled from the Camera also ROTATES the UIimage I am getting UIimages from the camera and assigning them to UIImageViews to be displayed. When I do this the camera gives me a 1200 x 1600 pixel image which I then assign to.. as expected in the image view under this condition. However when I attempt to RESIZE the retrieved UIImage before assigning it to the UIImageView the image is resizing as expected but there IS a problem in that somewhere in the RESIZING code my..
Objective-C: When to call self.myObject vs just calling myObject http://stackoverflow.com/questions/1332389/objective-c-when-to-call-self-myobject-vs-just-calling-myobject An example myObject anotherObject self.myObject anotherObject The second choice will ensure that you're actually assigning the object the way you want getting a copy increasing the retain count etc. . It's no different from self setMyObject anotherObject..
iPhone - dealloc - Release vs. nil http://stackoverflow.com/questions/1458178/iphone-dealloc-release-vs-nil variable foo . The instance variable will become a dangling pointer. This is the preferred method in dealloc. Is assigning nil to a property bar on self that will in practice release whatever the property is currently retaining. Do this if you..
iPhone : making UIBarButtonItem that is arrow shaped http://stackoverflow.com/questions/2330157/iphone-making-uibarbuttonitem-that-is-arrow-shaped forwardButton Note it turns out that if you try to set the target and action directly on the button item after assigning a custom view using a UIButton that it won't take you have to set the target and action on the button itself apparently..
Difference between self.ivar and ivar? http://stackoverflow.com/questions/4142177/difference-between-self-ivar-and-ivar then retains the new string and finally sets name to the retained string. Just calling name foo does nothing more than assigning name to foo. This also means that you can only call self.xxx when you have defined a property for the ivar otherwise the..
(iphone) UIImageView setImage: leaks? http://stackoverflow.com/questions/4644912/iphone-uiimageview-setimage-leaks setImage never leaks unless the image you are passing doesn't get released. Your code wont leak if your are assigning an autoreleased image to the image view something like the following. UIImage newImage UIImage imageNamed @ sampleImage..
iPhone - UIImagePickerControllerDelegate inheritance http://stackoverflow.com/questions/4727895/iphone-uiimagepickercontrollerdelegate-inheritance to that UIViewController. When I try to do myPicker.delegate self Xcode gifts me with this message warning assigning to id from incompatible type 'RootViewController ' Then I added the UINavigationControllerDelegate protocol to the same.. imagePickerDelegate of its own so your delegate has to conform to both protocols. It makes sense because you're also assigning the same delegate to the UINavigationController part that knows nothing about the image picker . The API design is a bit..
Checking a null value in Objective-C that has been returned from a JSON string http://stackoverflow.com/questions/4839355/checking-a-null-value-in-objective-c-that-has-been-returned-from-a-json-string email Telephone null FullAccount true Note the Telephone is coming in as null if the user doesn't enter one. When assigning this value to a NSString in the NSLog it's coming out as null I am assigning the string like this NSString tel jsonDictionary.. null if the user doesn't enter one. When assigning this value to a NSString in the NSLog it's coming out as null I am assigning the string like this NSString tel jsonDictionary valueForKey @ Telephone What is the correct way to check this null value..
Repeating NSTimer, weak reference, owning reference or iVar? http://stackoverflow.com/questions/4945028/repeating-nstimer-weak-reference-owning-reference-or-ivar nil ... ... Dealloc method super dealloc updateTimer release It should be noted that in the examples Apple are assigning the iVar directly and not using the property setter. iphone objective c cocoa touch nstimer share improve this question..
iPhone: Can a dev other than team agent build an app for distribution http://stackoverflow.com/questions/629057/iphone-can-a-dev-other-than-team-agent-build-an-app-for-distribution and distribution profile. When he dragged and dropped them into xcode and checked out windows organize it complains assigning identity matching this profile cannot be found in your keychain So this leads me to believe I need to get my key chain credentials..
What is the best way to deal with the NSDateFormatter locale “feature”? http://stackoverflow.com/questions/6613110/what-is-the-best-way-to-deal-with-the-nsdateformatter-locale-feature Instead of subclassing you could create an NSDateFormatter category with an additional initializer that takes care of assigning the locale and possibly also a format string so you'd have a ready to use formatter right after initializing it. @interface..
Change Navigation bar Background image on each navigation http://stackoverflow.com/questions/6692517/change-navigation-bar-background-image-on-each-navigation By this method Navigation bar background images is being set one time. I want to call it from different .m files for assigning different images on bar. How it can be implemented Thanks in advance. iphone image background navigation share improve..
iPhone, “More than maximum 5 filtered album lists trying to register. This will fail.” Error http://stackoverflow.com/questions/7167373/iphone-more-than-maximum-5-filtered-album-lists-trying-to-register-this-will UIImagePickerControllerSourceTypePhotoLibrary If this is the case then you have to check the source type before assigning it directly. like if UIImagePickerController isSourceTypeAvailable UIImagePickerControllerSourceTypePhotoLibrary Set source..
http://stackoverflow.com/questions/8146253/animate-change-of-view-controllers-without-using-navigation-controller-stack-su animated transition and the single view controller. Make sure you don't retain a view controller anywhere outside of assigning it to window.rootViewController . Code to animate transition in app delegate void transitionToViewController UIViewController..
What programming skills I need to become an iPhone developer? [closed] http://stackoverflow.com/questions/1043820/what-programming-skills-i-need-to-become-an-iphone-developer different. Most importantly foo and self.foo are not the same thing though often they may appear to be the same thing. Assigning to the latter will generally retain the object while the former will not. Following up on dot notation accessors are not..
http://stackoverflow.com/questions/1298867/convert-image-to-grayscale Processing pixel data float averageColor red green blue 3.0f red averageColor green averageColor blue averageColor Assigning new color components rawData byteIndex unsigned char red 255 rawData byteIndex 1 unsigned char green 255 rawData byteIndex..
Underline text in a UITextView http://stackoverflow.com/questions/13112965/underline-text-in-a-uitextview the text view. @property nonatomic copy NSAttributedString attributedText Discussion This property is nil by default. Assigning a new value to this property also replaces the value of the text property with the same string data albeit without any formatting..
assignment makes pointer from integer without a cast http://stackoverflow.com/questions/3430909/assignment-makes-pointer-from-integer-without-a-cast this question It's exactly what it's telling you. percentString is a pointer but integerForKey returns an integer. Assigning that integer to a pointer is making a pointer from an integer without a cast . Why are you saving an integer and trying..
@property/@synthesize question http://stackoverflow.com/questions/5903281/property-synthesize-question has been declared. Let's assume something like this @property nonatomic retain Article article ... @synthesize article Assigning something to article with self.article Article alloc init will overretain the instance given back by alloc init and cause..
What does setting the UIWindow's rootViewController do? http://stackoverflow.com/questions/8204059/what-does-setting-the-uiwindows-rootviewcontroller-do does setting the UIWindow's rootViewController do Assigning a view controller to this property either programmatically or using Interface Builder installs the view controller ™s view..
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