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2014/10/15 ¤U¤È 10:10:02
iphone Programming Glossary: heldWhen does a touchesBegan become a touchesMoved? http://stackoverflow.com/questions/1122616/when-does-a-touchesbegan-become-a-touchesmoved as the x y of the finger is changed until the finger is lifted and the touchesEnded event is fired. If the finger is held down in one place it will not fire the touchesMoved event until there is movement. I am building an app where you have to..
iOS 6: How do I restrict some views to portrait and allow others to rotate? http://stackoverflow.com/questions/12630359/ios-6-how-do-i-restrict-some-views-to-portrait-and-allow-others-to-rotate orientations. Everything worked as described above including the return to portrait even if the device was being held in landscape orientation when returning from view controller #4 to #3. In iOS 6 all view controllers rotate to landscape..
How to get the RGB values for a pixel on an image on the iphone http://stackoverflow.com/questions/144250/how-to-get-the-rgb-values-for-a-pixel-on-an-image-on-the-iphone to Quartz CGImage for receiver self CFDataRef bitmapData Buffer holding raw pixel data copied from Quartz CGImage held in receiver self UInt8 pixelByteData A pointer to the first pixel element in an array RGBPixel pixelData Step 4. Subclass..
Force UIImagePickerController to take photo in portrait orientation/dimensions iOS http://stackoverflow.com/questions/14484816/force-uiimagepickercontroller-to-take-photo-in-portrait-orientation-dimensions-i Is there a way to force the UIImagePickerController to take a photo in portrait dimensions even though the phone is held horizontally landscape mode I initialize the UIImagePickerController with the following settings imagePicker UIImagePickerController.. improve this question The imageOrientation flag is set on the UIImage depending on which way up the camera is being held when the picture is taken. This is a read only flag and determines the orientation that iOS will attempt to display the.. update The native pixel dimensions of an iPhone photograph are landscape regardless of the way the phone is held when it is taken. It is only the orientation EXIF flag that is set differently. You cannot alter the EXIF flag but you can..
How do I tell if my iPhone app is running when a Push Notification is received? http://stackoverflow.com/questions/1998196/how-do-i-tell-if-my-iphone-app-is-running-when-a-push-notification-is-received UIApplication application didFinishLaunchingWithOptions NSDictionary launchOptions with the notification details held in the launchOptions dictionary. if the dictionary is nil then the user tapped the application icon as normal. share improve..
http://stackoverflow.com/questions/4089238/implementing-nscopying it also on Car since Vendor holds an array of Car s. That means I also need to implement it on the classes that are held in the 2 arrays belonging to the Car object. I'd really appreciate it if I could get some guidance on implementing NSCopying..
Camera image changes orientation http://stackoverflow.com/questions/4565507/camera-image-changes-orientation share improve this question iPhone images are always stored the same way regardless of how the phone is held but a flag is set in the EXIF data that specifies which orientation the image should be in. Almost all native OSX applications..
Repeating NSTimer, weak reference, owning reference or iVar? http://stackoverflow.com/questions/4945028/repeating-nstimer-weak-reference-owning-reference-or-ivar than one method we need some way to hold a reference for future use the revised question is 1 Should the NSTimer be held using an owning reference i.e. @property nonatomic retain NSTimer walkTimer self setWalkTimer ti ... ... Cancel method self.. invalidate self setWalkTimer nil ... ... dealloc method walkTimer release super dealloc . 2 Should the NSTimer be held using a weak reference i.e. @property nonatomic assign NSTimer walkTimer self setWalkTimer ti ... ... Cancel method self..
How to Sync iPhone Core Data with web server, and then push to other devices? http://stackoverflow.com/questions/5035132/how-to-sync-iphone-core-data-with-web-server-and-then-push-to-other-devices will have to poll the server without using up too much battery. The local devices will also need to update anything held in memory if when changes are received from the server. Is there anything else I am missing here What kinds of frameworks..
xcode 4 debugging shows 'Summary Unavailable' for most objects http://stackoverflow.com/questions/5301582/xcode-4-debugging-shows-summary-unavailable-for-most-objects shows 'Summary Unavailable' for most objects Whilst using Xcode 4.0 and trying to debug and see what value is held in what variable or see what objects are in an array etc I always seem to get Summary Unavailable or Invalid Summary . The..
iPhone - when is dealloc for a viewcontroller called? http://stackoverflow.com/questions/577635/iphone-when-is-dealloc-for-a-viewcontroller-called tell me why this is happening. Found the problem. The dealloc method was not being called if any of the references held by a viewcontroller were still in memory. In my case it was the MPMoviePlayerController object which was not released in..
What is the maximum length of an NSString object? http://stackoverflow.com/questions/6482641/what-is-the-maximum-length-of-an-nsstring-object is the maximum length of an NSString object What is the maximum sized string that can be held in a NSString object Does this change dynamically iphone objective c xcode nsstring max share improve this question ..
Crash when adding persistent store (iCloud enabled) in app delegate http://stackoverflow.com/questions/8021753/crash-when-adding-persistent-store-icloud-enabled-in-app-delegate I've cleared the data from devices isSource NO who have not talked to the primary device where the data is held for months. I then pushed the data from the primary device and delightfully watched as ALL my data appeared within seconds...
Way to make a UIButton continuously fire during a press-and-hold situation? http://stackoverflow.com/questions/903114/way-to-make-a-uibutton-continuously-fire-during-a-press-and-hold-situation button on the D Pad In the same manner I want my UIButton to continuously fire its action for the duration that it is held down. Is this possible for a UIButton If not is this possible to do with a UIImageView by overriding a touch handling method..
UIButton long press with finger stationary http://stackoverflow.com/questions/9389923/uibutton-long-press-with-finger-stationary with the management of UILongPressGestureRecognizer but is not the case because I recall the event when the button is held down but only if I move my finger but I wish the timer went away and counted all the time in which the button is held down.. held down but only if I move my finger but I wish the timer went away and counted all the time in which the button is held down with your finger stationary and stopped counting when the finger is released. Does anyone know how to help me Thanks..
Reading HTML content from a UIWebView http://stackoverflow.com/questions/992348/reading-html-content-from-a-uiwebview encoding error . You can then push that string into the web view using loadHTMLString baseURL assuming you also held on to the NSURL you requested yourWebView loadHTMLString page baseURL requestURL I'm not sure however if this will run Javascript..
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