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2014/10/15 ¤U¤È 10:05:22
iphone Programming Glossary: componentHow to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast. I don't get an error whenever I provide a SMALLER size.. invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast. I don't get an error whenever I provide a SMALLER size as the target..
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 colorSpace return nil Create the bitmap context. Pre multiplied RGBA 8 bits per component. The source image format will be converted to the format specified here by CGBitmapContextCreate. self..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework is often referred to as 'DC Offset'. It so happens that Bin 0 and Bin n 2 will always have complex component 0 so A 0 .realp is used to store Bin 0 and A 0 .imagp is used to store Bin n 2 And the magnitude of..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting c cocoa touch uitextview share improve this question Assuming that you want an editable component there is not too much hope. Giving a quick overview just to make sure I cover everything UITextView.. only badly documented. No text selection etc see above . So here we are. Two fully functional components that lack a central function and two partial solutions that lack the missing link. Here are all viable..
http://stackoverflow.com/questions/3760924/set-line-height-in-uitextview and that it's nice and can do styling etc. But it's not editable . I need a editable text component with acceptable line height. That thing from the Omni Frameworks doesn't help either as it's too slow..
iOS Launching Settings -> Restrictions URL Scheme http://stackoverflow.com/questions/8246070/ios-launching-settings-restrictions-url-scheme for devices running iOS 5.1 and greater See Hlung's comment below. It's possible that the path component has a different name than the actual section but it's also possible that you can't currently access..
How do I draw a line on the iPhone? http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone you should see a window named Window . Hit Cmd Shift L to bring up the Library and drag a View component onto your window and position it so you can see all of it. With your new View selected hit Cmd 4 to..
iPhone: How to load a View using a nib file created with Interface Builder http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder for all you experts out there this forum is pack of the lot of you . Im creating a Questionnaire component I want to load on a NavigationContoller my QuestionManagerViewController. This is an empty view controller.. the ViewController and the View to be of class Question1View. I link the outlets with the view's component using IB . I override the initWithNib of my QuestionManagerViewController to look like this id initWithNibName..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees size as the current size of the UIImage but I get an error Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast. I don't get an error whenever I provide a SMALLER size as the target size BTW . Can any of you show me how to just.. the current size of the UIImage but I get an error Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast. I don't get an error whenever I provide a SMALLER size as the target size BTW . Can any of you show me how to just ROTATE my UIImage..
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 @ Error allocating bitmap memory. Releasing color space. CGColorSpaceRelease colorSpace return nil Create the bitmap context. Pre multiplied RGBA 8 bits per component. The source image format will be converted to the format specified here by CGBitmapContextCreate. self setContext CGBitmapContextCreate void pixelData self.size.width..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework bin 1 .idealFreq Actually there is an extra Bin Bin 0 which is often referred to as 'DC Offset'. It so happens that Bin 0 and Bin n 2 will always have complex component 0 so A 0 .realp is used to store Bin 0 and A 0 .imagp is used to store Bin n 2 And the magnitude of each complex number is the amount of energy vibrating around..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting giving it the text and then coloring it iphone objective c cocoa touch uitextview share improve this question Assuming that you want an editable component there is not too much hope. Giving a quick overview just to make sure I cover everything UITextView plain text only no public way around. But editable . No chance.. . Also features basic text replacements. Problem text input only badly documented. No text selection etc see above . So here we are. Two fully functional components that lack a central function and two partial solutions that lack the missing link. Here are all viable approaches I can come up with Have the user edit a UITextView..
http://stackoverflow.com/questions/3760924/set-line-height-in-uitextview write longer texts. thanks Max EDIT I know that there is UIWebView and that it's nice and can do styling etc. But it's not editable . I need a editable text component with acceptable line height. That thing from the Omni Frameworks doesn't help either as it's too slow and doesn't feel right... iphone cocoa touch share improve..
iOS Launching Settings -> Restrictions URL Scheme http://stackoverflow.com/questions/8246070/ios-launching-settings-restrictions-url-scheme share improve this question WARNING This method will not work for devices running iOS 5.1 and greater See Hlung's comment below. It's possible that the path component has a different name than the actual section but it's also possible that you can't currently access that section straight from a URL. I found a list of possible..
How do I draw a line on the iPhone? http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone on MainWindow.xib to open it in Interface Builder. From here you should see a window named Window . Hit Cmd Shift L to bring up the Library and drag a View component onto your window and position it so you can see all of it. With your new View selected hit Cmd 4 to bring up the Identity Inspector and under Class Identity click..
iPhone: How to load a View using a nib file created with Interface Builder http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder elaborate but that should be possible so here is a challenge for all you experts out there this forum is pack of the lot of you . Im creating a Questionnaire component I want to load on a NavigationContoller my QuestionManagerViewController. This is an empty view controller that can load different views depending on the question.. HERE IS WHERE MY PROBLEM PROBABLY ARE . I set the both the ViewController and the View to be of class Question1View. I link the outlets with the view's component using IB . I override the initWithNib of my QuestionManagerViewController to look like this id initWithNibName NSString nibNameOrNil bundle NSBundle nibBundleOrNil..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees but I get an error Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast. I don't get an error whenever I provide a SMALLER size as the target size BTW.. get an error Error CGBitmapContextCreate invalid data bytes row should be at least 1708 for 8 integer bits component 3 components kCGImageAlphaPremultipliedLast. I don't get an error whenever I provide a SMALLER size as the target size BTW . Can any..
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 color space. CGColorSpaceRelease colorSpace return nil Create the bitmap context. Pre multiplied RGBA 8 bits per component. The source image format will be converted to the format specified here by CGBitmapContextCreate. self setContext CGBitmapContextCreate..
Comparing two NSDates and ignoring the time component http://stackoverflow.com/questions/1854890/comparing-two-nsdates-and-ignoring-the-time-component two NSDates and ignoring the time component What is the most efficient recommended way of comparing two NSDates I would like to be able to see if both dates are on.. NSMonthCalendarUnit NSDayCalendarUnit NSCalendar calendar NSCalendar currentCalendar NSDateComponents components calendar components flags fromDate date NSDate dateOnly calendar dateFromComponents components ... necessary cleanup Then.. NSDayCalendarUnit NSCalendar calendar NSCalendar currentCalendar NSDateComponents components calendar components flags fromDate date NSDate dateOnly calendar dateFromComponents components ... necessary cleanup Then you can compare the..
Using the apple FFT and accelerate Framework http://stackoverflow.com/questions/3398753/using-the-apple-fft-and-accelerate-framework Bin Bin 0 which is often referred to as 'DC Offset'. It so happens that Bin 0 and Bin n 2 will always have complex component 0 so A 0 .realp is used to store Bin 0 and A 0 .imagp is used to store Bin n 2 And the magnitude of each complex number..
UITextView with Syntax Highlighting [duplicate] http://stackoverflow.com/questions/3642540/uitextview-with-syntax-highlighting it iphone objective c cocoa touch uitextview share improve this question Assuming that you want an editable component there is not too much hope. Giving a quick overview just to make sure I cover everything UITextView plain text only no public.. Problem text input only badly documented. No text selection etc see above . So here we are. Two fully functional components that lack a central function and two partial solutions that lack the missing link. Here are all viable approaches I can..
Fixed labels in the selection bar of a UIPickerView http://stackoverflow.com/questions/367471/fixed-labels-in-the-selection-bar-of-a-uipickerview the picker wheel is rolling. Is there a way to show such fixed labels in the selection bar of a standard UIPickerView component I did not find any API that would help with that. A suggestion was to add a UILabel as a subview of the picker but that.. CGSizeMake 0 1 picker insertSubview label aboveSubview picker.subviews objectAtIndex 5 When you have multiple components sections ... you will need to find which subview you need to actually get under so experiment with that 'objectAtIndex..
http://stackoverflow.com/questions/3760924/set-line-height-in-uitextview know that there is UIWebView and that it's nice and can do styling etc. But it's not editable . I need a editable text component with acceptable line height. That thing from the Omni Frameworks doesn't help either as it's too slow and doesn't feel right.....
Get RGB value from UIColor presets http://stackoverflow.com/questions/4700168/get-rgb-value-from-uicolor-presets cgcolorspace share improve this question EDIT As of iOS 5 UIColor has the following method which gives you the RGB components BOOL getRed CGFloat red green CGFloat green blue CGFloat blue alpha CGFloat alpha In iOS 4 and earlier the only way I know.. eg. UIColor groupTableViewBackgroundColor which don't have reasonable RGB values. void getRGBComponents CGFloat 3 components forColor UIColor color CGColorSpaceRef rgbColorSpace CGColorSpaceCreateDeviceRGB unsigned char resultingPixel 4 CGContextRef.. CGContextFillRect context CGRectMake 0 0 1 1 CGContextRelease context CGColorSpaceRelease rgbColorSpace for int component 0 component 3 component components component resultingPixel component 255.0f You can use it something like this CGFloat..
UIView and initWithFrame and a NIB file. How can i get the NIB file loaded? http://stackoverflow.com/questions/5056219/uiview-and-initwithframe-and-a-nib-file-how-can-i-get-the-nib-file-loaded not clear just how you intend to use this class as the view in a UIViewController subclass or as a reusable modular component mean to be instantiated multiple times throughout your application for use in many different view controllers. If your view.. file and use the UIViewController's viewDidLoad to do final initialization. But if you want your View class to be a subcomponent reused multiple times in different view controllers integrated either via code or via inclusion in a .xib file for another.. sure you call any code required finalization from awakeFromNib. Here's an example of how to create a UIView subclass component with the UI design in a nib. MyView.h @interface MyView UIView UIView view UILabel l @property nonatomic retain IBOutlet..
iOS Launching Settings -> Restrictions URL Scheme http://stackoverflow.com/questions/8246070/ios-launching-settings-restrictions-url-scheme method will not work for devices running iOS 5.1 and greater See Hlung's comment below. It's possible that the path component has a different name than the actual section but it's also possible that you can't currently access that section straight..
Core Data vs. SQLite for SQL experienced developers http://stackoverflow.com/questions/840634/core-data-vs-sqlite-for-sql-experienced-developers are largely orthogonal. Core Data is really about managing an object graph and it's main use case is for the model component of an MVC architecture. If your application fits nicely into this architecture it's probably worth using Core Data as it.. fits nicely into this architecture it's probably worth using Core Data as it will save you a lot of code in the model component. If you already have a working model component e.g. from the existing desktop app then Core Data won't buy you much. A hybrid.. worth using Core Data as it will save you a lot of code in the model component. If you already have a working model component e.g. from the existing desktop app then Core Data won't buy you much. A hybrid approach is possible you can do your own..
How do I draw a line on the iPhone? http://stackoverflow.com/questions/856354/how-do-i-draw-a-line-on-the-iphone Builder. From here you should see a window named Window . Hit Cmd Shift L to bring up the Library and drag a View component onto your window and position it so you can see all of it. With your new View selected hit Cmd 4 to bring up the Identity..
iPhone: How to load a View using a nib file created with Interface Builder http://stackoverflow.com/questions/863321/iphone-how-to-load-a-view-using-a-nib-file-created-with-interface-builder here is a challenge for all you experts out there this forum is pack of the lot of you . Im creating a Questionnaire component I want to load on a NavigationContoller my QuestionManagerViewController. This is an empty view controller that can load.. ARE . I set the both the ViewController and the View to be of class Question1View. I link the outlets with the view's component using IB . I override the initWithNib of my QuestionManagerViewController to look like this id initWithNibName NSString..
Code Sign error: The identity 'iPhone Developer: x Xxxxx' doesn't match any identity in any profile http://stackoverflow.com/questions/1072311/code-sign-error-the-identity-iphone-developer-x-xxxxx-doesnt-match-any-iden like this iPhone Developer x Xxxxx 3BDUAJYC9Q `My original certificate didn't have that. I have Xcode Version 3.1.3 Component versions Xcode IDE 1191.0 Xcode Core 1192.0 ToolSupport 1186.0 Does anyone know how to solve this iphone iphone sdk 3.0..
iPhone development: pointer being freed was not allocated http://stackoverflow.com/questions/1424210/iphone-development-pointer-being-freed-was-not-allocated overlayMasked.CGImage Set the blend mode for the next drawn image CGContextSetBlendMode context kCGBlendModeOverlay Component image drawn CGContextDrawImage context rect sp.image.CGImage UIImage blendedImage UIGraphicsGetImageFromCurrentImageContext..
Why isn't the UIPickerView widthForComponent delegate method called everytime the view appears? http://stackoverflow.com/questions/1622839/why-isnt-the-uipickerview-widthforcomponent-delegate-method-called-everytime-th isn't the UIPickerView widthForComponent delegate method called everytime the view appears I've got two controls on an iPhone screen a TableView and a UIPickerView... 3 components with the appropriate Brassiere data in each component. The component widths are 55 55 55. Scenario #2 Component widths not redrawn 1.1 You select the Belt clothing item and the UIPickerView is drawn with 3 components with the appropriate.. The component widths are now correct 55 55 55. From stepping through the code it looks like the UIPickerView widthForComponent delegate method is only called when the number of components in the UIPickerView changes. Is there any way to force this..
How to create UIImage from UIWebView http://stackoverflow.com/questions/5469093/how-to-create-uiimage-from-uiwebview
Switch between UIViewControllers using UISegmentedControl http://stackoverflow.com/questions/5555218/switch-between-uiviewcontrollers-using-uisegmentedcontrol the navigation controller goes the root controller which won't work . And there's even another bug related to the Kal Component. So what's the right way to do it iphone sdk uiviewcontroller uisegmentedcontrol share improve this question The right..
kCVPixelFormatType_420YpCbCr8BiPlanarFullRange frame to UIImage conversion http://stackoverflow.com/questions/8838481/kcvpixelformattype-420ypcbcr8biplanarfullrange-frame-to-uiimage-conversion to process Y channel. According to Apple's documentation kCVPixelFormatType_420YpCbCr8BiPlanarFullRange Bi Planar Component Y'CbCr 8 bit 4 2 0 full range luma 0 255 chroma 1 255 . baseAddr points to a big endian CVPlanarPixelBufferInfo_YCbCrBiPlanar..
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