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2014/10/15 ¤U¤È 10:10:30
iphone Programming Glossary: intendedUISearchbar clearButton forces the keyboard to appear http://stackoverflow.com/questions/1092246/uisearchbar-clearbutton-forces-the-keyboard-to-appear hasn't become the first responder yet so we can take advantage of that in order to detect when the user in fact intended to clear the search and not bring focus to the searchBar and or do something else. To keep track of that we need to declare..
How to stop UITextView from scrolling up when entering it http://stackoverflow.com/questions/1178010/how-to-stop-uitextview-from-scrolling-up-when-entering-it uitextview share improve this question This is how UITextView behaves according to Apple's engineer this is intended and UITextView is meant for text that are at least a few lines in height. There is no work around to this use a UITextField..
What happens if I don't retain IBOutlet? http://stackoverflow.com/questions/1250518/what-happens-if-i-dont-retain-iboutlet UIViewController viewDidUnload method. This will get rid of the final release on the UITextField and deallocate it as intended. If using the property you must remember to release it explicitly. While these two actions are functionally equivalent the..
How to identify CAAnimation within the animationDidStop delegate? http://stackoverflow.com/questions/1255086/how-to-identify-caanimation-within-the-animationdidstop-delegate Batgar's technique is too complicated. Why not take advantage of the forKey parameter in addAnimation It was intended for this very purpose. Just take out the call to setValue and move the key string to the addAnimation call. For example..
What's the difference between NSNumber and NSInteger? http://stackoverflow.com/questions/1285098/whats-the-difference-between-nsnumber-and-nsinteger float values outside of time intervals. So they gave NSTimeInterval which is a floating point type but that is clearly intended for use with time intervals. And frankly it's great to have that type because you know it's always meant to be in seconds..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees I want the pixels of the UIImage to actually shift position. I am using a block of code shown below originally intended to resize a UIImage to do this. I set a target size as the current size of the UIImage but I get an error Error CGBitmapContextCreate..
Dynamic (Default.png) splashscreen in 3.0 [iPhone SDK] http://stackoverflow.com/questions/1959080/dynamic-default-png-splashscreen-in-3-0-iphone-sdk see that the Default.png is suppose to represent your user interface as it would be empty without any content. It is intended to give the user the illusion of an near instant launch. Check out all of the Apple apps on the iPhone and you'll see how..
http://stackoverflow.com/questions/262156/uiimage-rounded-corners the longeset edge as a guide. if the image is wider than tall we'll figure out the scale factor by dividing it by the intended width. Otherwise we'll use the height. float widthFactor targetSize.width width float heightFactor targetSize.height height..
How to make half curl animation in iPhone like the maps app? http://stackoverflow.com/questions/2863049/how-to-make-half-curl-animation-in-iphone-like-the-maps-app Apple does support this for the presentation of modal views as of 3.2. This makes sense the page curl effect is intended to signal the user that a page of options or settings is being revealed and when they are done changing things they will..
Turn off iPhone/Safari input element rounding http://stackoverflow.com/questions/2918707/turn-off-iphone-safari-input-element-rounding Is there a way to instruct Safari via CSS or metadata not to round the input fields and render them rectangular as intended iphone html css css3 mobile safari share improve this question The simplest way would be to set webkit appearance to..
Setting direction for UISwipeGestureRecognizer http://stackoverflow.com/questions/3319209/setting-direction-for-uiswipegesturerecognizer . Filed a bug report #8276386 to Apple. Update I got an answer from Apple saying that the behavior works as was intended. So for example in a table view you can swipe left or right in a table view cell to trigger 'delete' this would have directions..
How to recognize swipe gesture in UIScrollView http://stackoverflow.com/questions/3648967/how-to-recognize-swipe-gesture-in-uiscrollview Apparently that meant that scrolling is enabled and the UIScrollView had trouble distinguishing between gestures intended to scroll vs. swipe next previous image . The key in my case is to disable scrolling in the scroll view when the image is..
How to keep an iPhone app running on background fully operational http://stackoverflow.com/questions/3762200/how-to-keep-an-iphone-app-running-on-background-fully-operational
http://stackoverflow.com/questions/5360846/suspend-the-application tend to interpret this as a crash. However if external circumstances prevent your application from functioning as intended you need to tell your users about the situation and explain what they can do about it. Depending on how severe the application..
How to distribute ios application wirelessly without managing UDIDs and recompilation http://stackoverflow.com/questions/5546581/how-to-distribute-ios-application-wirelessly-without-managing-udids-and-recompil months now with no problems. Granted I am distributing under the Enterprise license which costs 299 a year and is intended for internal business use. This may work with a normal developer license but you'd have to do some testing to make sure...
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing why viewWillAppear wasn't being called in my app I came across what may be a gross misunderstanding I hold about the intended use of UIViewController subclasses. According to the following post viewWillAppear does not run when using addSubView and.. 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 problems. The methods that you mentioned viewDidLoad viewWillAppear etc. are meant to tell.. subclassing. viewDidLoad and viewWillAppear are two examples of override points for UIViewController a class that's intended for subclassing. The view controller object calls these methods itself to give subclasses a chance to take some action at..
How to disable iOS System Sounds http://stackoverflow.com/questions/6284402/how-to-disable-ios-system-sounds all system sounds but allow other sounds iPod . Part of the reason for this is that the accessory is such that it is intended to be used during a live performance. Clearly it would be annoying to have e mail alert or any other system sound running..
How can I use private APIs to block incoming calls in an iOS application? http://stackoverflow.com/questions/7326338/how-can-i-use-private-apis-to-block-incoming-calls-in-an-ios-application application I would like to be able to selectively block incoming calls in an iOS application I'm writing. This is intended for personal use not the App Store so I'm fine with using private APIs to accomplish this. I have recently come across the..
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