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2014/10/15 ¤U¤È 10:15:24
iphone Programming Glossary: uiviewHow to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present to make a UITextField move up when keyboard is present With the iPhone SDK I have a UIView with UITextFields that brings up a keyboard. I need it to be able to Allow scrolling of the contents.. scrolling up or shortening I know that I need a UIScrollView . I've tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and.. UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the.. way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that.. as firstResponder to receive the shake event messages. Here's the code that you can use in any UIView to get shake events @implementation ShakingView void motionEnded UIEventSubtype motion withEvent UIEvent..
http://stackoverflow.com/questions/2371489/why-do-you-use-an-underscore-for-an-instance-variable-but-not-its-corresponding here sample program from Apple.It consist of LevelMeter.h file in which @interface LevelMeter UIView CGFloat _level _peakLevel The property are set as @property CGFloat level @property CGFloat peakLevel..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know.. I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and.. touch core animation share improve this question As Ben said you'll need to work with the UIView's layer using a CATransform3D to perform the layer's rotation. The trick to get perspective working..
Gradients on UIView and UILabels On iPhone [duplicate] http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone on UIView and UILabels On iPhone duplicate Possible Duplicate Manually drawing a gradient in iPhone apps My application..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display to capture UIView to UIImage without loss of quality on retina display My code works fine for normal devices but creates.. blurry images on retina devices. Does anybody know a solution for my issue UIImage imageWithView UIView view UIGraphicsBeginImageContext view.bounds.size view.layer renderInContext UIGraphicsGetCurrentContext.. sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions view.bounds.size view.opaque 0.0 view.layer renderInContext..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown @ processRegion ofView IMP imp _controller methodForSelector selector CGRect func id SEL CGRect UIView void imp CGRect result func _controller selector someRect someView Reasoning for Warning The reason..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present to make a UITextField move up when keyboard is present With the iPhone SDK I have a UIView with UITextFields that brings up a keyboard. I need it to be able to Allow scrolling of the contents of the UIScrollView to see the other text fields once the keyboard.. once the keyboard is brought up Automatically jump by scrolling up or shortening I know that I need a UIScrollView . I've tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know.. I need a UIScrollView . I've tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView and the trick is to programatically set the content..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone detection share improve this question In 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that you can use in any UIView to get shake events @implementation.. share improve this question In 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that you can use in any UIView to get shake events @implementation.. you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that you can use in any UIView to get shake events @implementation ShakingView void motionEnded UIEventSubtype motion withEvent UIEvent event if event.subtype UIEventSubtypeMotionShake Put in..
http://stackoverflow.com/questions/2371489/why-do-you-use-an-underscore-for-an-instance-variable-but-not-its-corresponding on voice recording in iphone .I have downloaded the speak here sample program from Apple.It consist of LevelMeter.h file in which @interface LevelMeter UIView CGFloat _level _peakLevel The property are set as @property CGFloat level @property CGFloat peakLevel What is the use of declaring a varible like _level and..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and.. do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and have run through all the pragmatic programmer Core Animation.. code snippets would be really appreciated iphone ios cocoa touch core animation share improve this question As Ben said you'll need to work with the UIView's layer using a CATransform3D to perform the layer's rotation. The trick to get perspective working as described here is to directly access one of the matrix cells..
Gradients on UIView and UILabels On iPhone [duplicate] http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone on UIView and UILabels On iPhone duplicate Possible Duplicate Manually drawing a gradient in iPhone apps My application needs to display text in either a View or Label but..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display to capture UIView to UIImage without loss of quality on retina display My code works fine for normal devices but creates blurry images on retina devices. Does anybody know a solution.. display My code works fine for normal devices but creates blurry images on retina devices. Does anybody know a solution for my issue UIImage imageWithView UIView view UIGraphicsBeginImageContext view.bounds.size view.layer renderInContext UIGraphicsGetCurrentContext UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext.. it up or just your brain is picking up on it being less sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions view.bounds.size view.opaque 0.0 view.layer renderInContext UIGraphicsGetCurrentContext UIImage img UIGraphicsGetImageFromCurrentImageContext..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown have to change things a bit SEL selector NSSelectorFromString @ processRegion ofView IMP imp _controller methodForSelector selector CGRect func id SEL CGRect UIView void imp CGRect result func _controller selector someRect someView Reasoning for Warning The reason for this warning is that with ARC the runtime needs to know..
How to make a UITextField move up when keyboard is present http://stackoverflow.com/questions/1126726/how-to-make-a-uitextfield-move-up-when-keyboard-is-present to make a UITextField move up when keyboard is present With the iPhone SDK I have a UIView with UITextFields that brings up a keyboard. I need it to be able to Allow scrolling of the contents of the UIScrollView.. jump by scrolling up or shortening I know that I need a UIScrollView . I've tried changing the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does.. the class of my UIView to a UIScrollView but I'm still unable to scroll the textboxes up or down. Do I need both a UIView and a UIScrollView Does one go inside the other EDIT I now know that you want a UIView inside of a UIScrollView and the..
How do I detect when someone shakes an iPhone? http://stackoverflow.com/questions/150446/how-do-i-detect-when-someone-shakes-an-iphone In 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that you can use.. 3.0 there's now an easier way hook into the new motion events. The main trick is that you need to have some UIView not UIViewController that you want as firstResponder to receive the shake event messages. Here's the code that you can use in any UIView.. that you want as firstResponder to receive the shake event messages. Here's the code that you can use in any UIView to get shake events @implementation ShakingView void motionEnded UIEventSubtype motion withEvent UIEvent event if event.subtype..
http://stackoverflow.com/questions/2371489/why-do-you-use-an-underscore-for-an-instance-variable-but-not-its-corresponding downloaded the speak here sample program from Apple.It consist of LevelMeter.h file in which @interface LevelMeter UIView CGFloat _level _peakLevel The property are set as @property CGFloat level @property CGFloat peakLevel What is the use..
How do I apply a perspective transform to a UIView? http://stackoverflow.com/questions/347721/how-do-i-apply-a-perspective-transform-to-a-uiview do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible.. do I apply a perspective transform to a UIView I'm looking to perform a perspective transform on a UIView such as seen in coverflow Does anyonew know if this is possible I've investigated using CALayer and have run through all.. iphone ios cocoa touch core animation share improve this question As Ben said you'll need to work with the UIView's layer using a CATransform3D to perform the layer's rotation. The trick to get perspective working as described here is..
Gradients on UIView and UILabels On iPhone [duplicate] http://stackoverflow.com/questions/422066/gradients-on-uiview-and-uilabels-on-iphone on UIView and UILabels On iPhone duplicate Possible Duplicate Manually drawing a gradient in iPhone apps My application needs to..
How to capture UIView to UIImage without loss of quality on retina display http://stackoverflow.com/questions/4334233/how-to-capture-uiview-to-uiimage-without-loss-of-quality-on-retina-display to capture UIView to UIImage without loss of quality on retina display My code works fine for normal devices but creates blurry images on.. devices but creates blurry images on retina devices. Does anybody know a solution for my issue UIImage imageWithView UIView view UIGraphicsBeginImageContext view.bounds.size view.layer renderInContext UIGraphicsGetCurrentContext UIImage img UIGraphicsGetImageFromCurrentImageContext.. up on it being less sharp than everything around it. So I guess #import QuartzCore QuartzCore.h UIImage imageWithView UIView view UIGraphicsBeginImageContextWithOptions view.bounds.size view.opaque 0.0 view.layer renderInContext UIGraphicsGetCurrentContext..
performSelector may cause a leak because its selector is unknown http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown NSSelectorFromString @ processRegion ofView IMP imp _controller methodForSelector selector CGRect func id SEL CGRect UIView void imp CGRect result func _controller selector someRect someView Reasoning for Warning The reason for this warning is..
Resize for in-call status bar? http://stackoverflow.com/questions/1114557/resize-for-in-call-status-bar to the in call status bar in any of the documentation except where it talks about the simulator menu command. iphone uiview statusbar share improve this question What do you mean when you say that 'the resize properties aren't enabled for the..
Cocoa: What's the Difference between the frame and the bounds? http://stackoverflow.com/questions/1210047/cocoa-whats-the-difference-between-the-frame-and-the-bounds difference Please don't quote the Apple docs I've already read them and did not understand iphone cocoa touch cocoa uiview share improve this question The bounds of an UIView is the rectangle expressed as a location x y and size width height..
Get to UIViewController from UIView on iPhone? http://stackoverflow.com/questions/1340434/get-to-uiviewcontroller-from-uiview-on-iphone UIViewController to its UIView via self view but I was wondering if there is a reverse reference iphone cocoa touch uiview uiviewcontroller share improve this question Since this has been the accepted answer for a long time I feel I need to.. to its UIView via self view but I was wondering if there is a reverse reference iphone cocoa touch uiview uiviewcontroller share improve this question Since this has been the accepted answer for a long time I feel I need to rectify..
How to get UIImage from EAGLView? http://stackoverflow.com/questions/1352864/how-to-get-uiimage-from-eaglview I am trying to get a UIImage from what is displayed in my EAGLView. Any suggestions on how to do this iphone uikit uiview opengl es eaglview share improve this question An EAGLView is just a kind of view and its underlying CAEAGLLayer is..
Howe to capture UIView top UIView http://stackoverflow.com/questions/14049796/howe-to-capture-uiview-top-uiview UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone ios uiview uiimage share improve this question try my this method and code .. UIImage captureView hide controls if needed CGRect..
UIViewController. viewDidLoad vs. viewWillAppear: What is the proper division of labor? http://stackoverflow.com/questions/1579550/uiviewcontroller-viewdidload-vs-viewwillappear-what-is-the-proper-division-of What are the pros and cons of doing this in viewDidLoad vs. viewWillAppear Thanks in advance. Cheers Doug iphone uiview uiviewcontroller share improve this question viewDidLoad is things you have to do once. viewWillAppear gets called every.. are the pros and cons of doing this in viewDidLoad vs. viewWillAppear Thanks in advance. Cheers Doug iphone uiview uiviewcontroller share improve this question viewDidLoad is things you have to do once. viewWillAppear gets called every time..
Drawing incrementally in a UIView (iPhone) http://stackoverflow.com/questions/1798414/drawing-incrementally-in-a-uiview-iphone context 0.5 0.0 0.0 1.0 CGContextFillPath context Thanks everyone iphone objective c performance uiview drawing share improve this question If you are only actually changing a small portion of the UIView's content every..
Changing my CALayer's anchorPoint moves the view http://stackoverflow.com/questions/1968017/changing-my-calayers-anchorpoint-moves-the-view 242.500000 2009 12 27 20 43 24.162 Type 11289 207 center point 272.500000 242.500000 iphone cocoa cocoa touch uiview share improve this question The Layer Geometry and Transforms section of the Core Animation Programming Guide explains..
How Do I Take a Screen Shot of a UIView? http://stackoverflow.com/questions/2214957/how-do-i-take-a-screen-shot-of-a-uiview dimensions 320x480 an it has some sub views. What is the correct way to do this Thanks in advance. iphone objective c uiview uiimage screenshot share improve this question I think you may want renderInContext not drawInContext . drawInContext..
Rounded UIView using CALayers - only some corners - How? http://stackoverflow.com/questions/2264083/rounded-uiview-using-calayers-only-some-corners-how etc. Is it possible IF yes then How Thanks in advance for sharing your knowledge. Sagar. iphone objective c xcode uiview calayer share improve this question I used the answer over at How do I create a round cornered UILabel on the iPhone..
http://stackoverflow.com/questions/2337408/addsubview-animation when newView appears Like zoom or slide down or something like that. Is there some simple code iphone animation uiview share improve this question Hi You could use the UIView Animations newView setFrame CGRectMake 0.0f 480.0f 320.0f 480.0f..
Orientation in a UIView added to a UIWindow http://stackoverflow.com/questions/2508630/orientation-in-a-uiview-added-to-a-uiwindow An illustration below I do have a navigation controller but this view has been added to the UIWindow directly. iphone uiview orientation uiwindow share improve this question You can read about some of the possible causes here Technical Q A QA1688..
“Incorrect” frame / window size after re-orientation in iPhone http://stackoverflow.com/questions/2686882/incorrect-frame-window-size-after-re-orientation-in-iphone w f h f UIInterfaceOrientationIsPortrait self.interfaceOrientation Portrait Landscape size.width size.height iphone uiview frame share improve this question The orientation of your device changed not the physical characteristics of the screen...
How to tell if UIViewController's view is visible http://stackoverflow.com/questions/2777438/how-to-tell-if-uiviewcontrollers-view-is-visible a particular UIViewController is currently visible from within the UIViewController looking for a property iphone ios uiview uiviewcontroller share improve this question The view's window property is non nil if a view is currently visible so.. UIViewController is currently visible from within the UIViewController looking for a property iphone ios uiview uiviewcontroller share improve this question The view's window property is non nil if a view is currently visible so check..
What are block-based animation methods in iPhone OS 4.0? http://stackoverflow.com/questions/3126833/what-are-block-based-animation-methods-in-iphone-os-4-0 that the beginAnimations context and commitAnimations functions were used to create animation blocks.. iphone ios4 uiview core animation share improve this question If you follow that link and scroll up a bit you will see animate methods..
UIView vertical flip animation http://stackoverflow.com/questions/5392629/uiview-vertical-flip-animation though. The page curl transition won't cut it. I assume this will require something custom. Any ideas iphone ios uiview core animation share improve this question As of iOS 5.0 there's no need to write your own Core Animation transformation..
Am I abusing UIViewController Subclassing? http://stackoverflow.com/questions/5691226/am-i-abusing-uiviewcontroller-subclassing does not run when using addSubView and the link to this blog post http blog.carbonfive.com 2011 03 09 abusing uiviewcontrollers UIViewController subclassing should only happen in very specific situations. Most notably when added directly.. and be done with it Why replicate all of the perceived functionality of UIViewController iphone cocoa touch ios uiview uiviewcontroller share improve this question Answer to title question Yes. So basically either I have been completely.. be done with it Why replicate all of the perceived functionality of UIViewController iphone cocoa touch ios uiview uiviewcontroller share improve this question Answer to title question Yes. So basically either I have been completely wrong..
iPhone UIView Animation Best Practice http://stackoverflow.com/questions/630265/iphone-uiview-animation-best-practice it'd be much appreciated. NOTE I've been unable to get the second approach to work correctly. iphone ios cocoa touch uiview core animation share improve this question From the UIView reference 's section about the beginAnimations context method..
Why am I having to manually set my view's frame in viewDidLoad? http://stackoverflow.com/questions/6757018/why-am-i-having-to-manually-set-my-views-frame-in-viewdidload changes result #1 to be view frame 0 0 748 1024 That seems a tiny bit closer but still not matching #3. iphone ipad uiview frame viewdidload share improve this question The frame is not guaranteed to be the same in viewDidLoad as it will be..
steps for creating UIScrollView with Interface Builder http://stackoverflow.com/questions/9118796/steps-for-creating-uiscrollview-with-interface-builder other way to do this that makes more sense What am I missing in my understanding of how this should work iphone ios uiview uiscrollview share improve this question UPDATE I have posted another solution here which I think is simpler and better...
can a particular rect of UIview have different alpha..? http://stackoverflow.com/questions/11792563/can-a-particular-rect-of-uiview-have-different-alpha a particular rect of UIview have different alpha.. I wan't a imageview which is semi transparent in other parts and completely transparent in the middle..
I want capture screen when any game is running with opengl [duplicate] http://stackoverflow.com/questions/14372292/i-want-capture-screen-when-any-game-is-running-with-opengl but when i take screen shot its only black screen. what i do I also use code in link take screen Programmatically of UIview glview and similar code but no success. i am suing code from http developer.apple.com library ios #qa qa1704 _index.html..
composite colors: CALayer and blend mode on iPhone http://stackoverflow.com/questions/1658751/composite-colors-calayer-and-blend-mode-on-iphone I'm able to composite my colors using quartz to draw an uiview but I want to separate each component into CALayer UIview consume more resources . So I have a white mask I want to use to filter a background bitmap and I want to try different..
Problems with UINavigationController inside of UITabBarController, viewWillAppear not called http://stackoverflow.com/questions/3063610/problems-with-uinavigationcontroller-inside-of-uitabbarcontroller-viewwillappea viewWillAppear animated Edit Okay now here is something weird I noticed If I run self presentModalViewController any UIview animated YES and then dismiss it viewWillAppear begins to work properly when popping and pushing views... So now I am stumped...
how to open a new uiview like a popup? http://stackoverflow.com/questions/3419053/how-to-open-a-new-uiview-like-a-popup You won't be able to open like a popup a UIViewController. For that you will have to use a simple UIView Add the UIview popup shape like to your current view. void initPopUpView popup.alpha 0 popup.frame CGRectMake 160 240 0 0 self.view addSubview..
Moving UIView up when keyboard shown http://stackoverflow.com/questions/5220818/moving-uiview-up-when-keyboard-shown this from examples i have found. i could be doing something simple wrong.. lets hope so . i am trying to move the UIview up as a have a textfield hidden at the bottom. A little about my app its got a tab bar controller and implements a standard..
take screen Programmatically of UIview+glview http://stackoverflow.com/questions/6197137/take-screen-programmatically-of-uiviewglview screen Programmatically of UIview glview i have glview in my uiview now i have to take scrren shot of combine view of uiview and glview. i googled lot but..
SubView slide in animation, iphone http://stackoverflow.com/questions/7343915/subview-slide-in-animation-iphone slide in animation iphone I have a UIview Containing two UIButtons. void ViewDidLoad geopointView UIView alloc initWithFrame CGRectMake 0 350 120 80 geopointView.backgroundColor.. geopointView addSubview showGeoPointButton geopointView addSubview SaveButton I want to animate slide in of UIview when following method is called. void showAnimation I tried to do it by following way but I can see no animation. How can..
http://stackoverflow.com/questions/11578117/uipopovercontroller-not-dismissed-when-opened-from-self-navigationitem-inside-u dismiss the popover when it detected a tap on the navigationItem. Unfortunately the navigationItem seems to not be UIVIew so it lacks the addGestureRecognizer method... EDIT Adding a UITapGesturerecognizer to self.navigationController.navigationBar..
http://stackoverflow.com/questions/2950309/viewwillappear-for-subviews for subviews I have UIScrollView with multiple UIVIew subviews. I would like to update the data that is displayed by each UIView when they appear in the visible portion of the..
Why is my EAGLVIew not rendering anymore in iOS 4.2? http://stackoverflow.com/questions/4270320/why-is-my-eaglview-not-rendering-anymore-in-ios-4-2 not color it through glClearColor . When I double tap it it shall resize it goes fullscreen before this it is a little UIVIew calling this method void animateToGrow DNSLog @ grow grow YES oldFrame self.frame oldCenter self.center UIView beginAnimations..
UIVIew Flip Vertical Animation http://stackoverflow.com/questions/5144446/uiview-flip-vertical-animation Flip Vertical Animation Given UIView beginAnimations nil context nil UIView setAnimationCurve UIViewAnimationCurveEaseOut..
Relationship between UIVIew and CALayer regarding background image on iOS http://stackoverflow.com/questions/5916581/relationship-between-uiview-and-calayer-regarding-background-image-on-ios between UIVIew and CALayer regarding background image on iOS Trying to understand the relationship between UIView and CALayer. I read..
Remove UIVIew from SuperView with Animation http://stackoverflow.com/questions/628099/remove-uiview-from-superview-with-animation UIVIew from SuperView with Animation I can animate the addition of a UIView to my app it looks very pretty so thank you apple...
How access an uiview subview partially outside of his parent uiview? http://stackoverflow.com/questions/7622770/how-access-an-uiview-subview-partially-outside-of-his-parent-uiview access an uiview subview partially outside of his parent uiview I have the following UIVIew architecture x y width height MainWindow 0 0 768 1024 MainView 0 0 768 80 containerview 500 40 120 80 subview 500 40 120..
how to set scan frame in zbar SDK? http://stackoverflow.com/questions/7991446/how-to-set-scan-frame-in-zbar-sdk presentModalViewController reader animated YES reader release iphone camera share improve this question Make a UIVIew e.g. scanView object and make it as your customize area. Where u want to get scan area there should be transparent area..
http://stackoverflow.com/questions/8004364/xcode-image-editing
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