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2014/10/15 ¤U¤È 10:15:17
iphone Programming Glossary: uiimagehttp://stackoverflow.com/questions/158914/cropping-a-uiimage a UIImage I've got some code that resizes an image so I can get a scaled chunk of the center of the image I use.. that resizes an image so I can get a scaled chunk of the center of the image I use this to take a UIImage and return a small square representation of an image similar to what's seen in the album view of the.. of an image similar to what's seen in the album view of the Photos app. I know I could use a UIImageView and adjust the crop mode to achieve the same results but these images are sometimes displayed in..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically self.window.bounds.size self.window.layer renderInContext UIGraphicsGetCurrentContext UIImage image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData data UIImagePNGRepresentation.. UIImage image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData data UIImagePNGRepresentation image data writeToFile @ foo.png atomically YES UPDATE April 2011 for retina display..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage simplest way to resize an UIImage In my iPhone app I take a picture with the camera then I want to resize it to 290 390 pixels. I was.. the camera then I want to resize it to 290 390 pixels. I was using this method to resize the image UIImage newImage image _imageScaledToSize CGSizeMake 290 390 interpolationQuality 1 It works perfectly but.. function so I can't use it anymore with iPhone OS4. So... what is the simplest way to resize an UIImage iphone resize uiimage share improve this question The simplest way is to set the frame of your..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now.. do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints that you would expect from a good PDF viewer. You can draw a PDF page to a CALayer or to a UIImage . Apple even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues.. code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit.. PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload UIImagePickerController result image orientation after upload I am testing my iPhone application on an iOS.. am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker setSourceType.. on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker setSourceType UIImagePickerControllerSourceTypeCamera..
Any quick and dirty anti-aliasing techniques for a rotated UIImageView? http://stackoverflow.com/questions/1136110/any-quick-and-dirty-anti-aliasing-techniques-for-a-rotated-uiimageview make it look better It's clearly not being anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias.. better It's clearly not being anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias options CGContextSetAllowsAntialiasing..
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 QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work.. How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because.. I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double..
Tricks for improving iPhone UITableView scrolling performance? http://stackoverflow.com/questions/1352479/tricks-for-improving-iphone-uitableview-scrolling-performance anyone have any tips for improving uitableview scrolling performance iphone uitableview scrolling uiimage share improve this question Cache the height of the rows the table view can request this frequently..
Resize UIImage with aspect ratio? http://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio the original image size. Is there an easy way to do this similar to what I'm doing Thanks iphone uiimage core graphics share improve this question After you set your screen rect do something like the following..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage use it anymore with iPhone OS4. So... what is the simplest way to resize an UIImage iphone resize uiimage share improve this question The simplest way is to set the frame of your UIImageView and set the..
didFinishPickingMediaWithInfo return nil photo http://stackoverflow.com/questions/3088874/didfinishpickingmediawithinfo-return-nil-photo do this and I am pretty sure the calls are correct but never an image. Thanks in advance iphone uiimage camera uiimagepickercontroller share improve this question I know this is many months later but.. am pretty sure the calls are correct but never an image. Thanks in advance iphone uiimage camera uiimagepickercontroller share improve this question I know this is many months later but I struggled with..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie someone can help me or send me a code snippet which does something like I want. Thx iphone export uiimage avfoundation share improve this question Take a look at AVAssetWriter and the rest of the AVFoundation..
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 UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone uiimage scale retina display image capture share improve this question Switch from use of UIGraphicsBeginImageContext..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview self maskImage OrigImage withMask mask myUIIMage.image maskedImage iphone objective c ios uiimage mask share improve this question The tutorial uses this method with two parameters image and maskImage..
Make movie file with picture Array and song file, using AVAsset http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int frameCount 0 for int i 0 i 20 i buffer self pixelBufferFromCGImage m_PictArray objectAtIndex.. startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int frameCount 0 for int i 0 i m_PictArray count i buffer self pixelBufferFromCGImage m_PictArray..
http://stackoverflow.com/questions/158914/cropping-a-uiimage a UIImage I've got some code that resizes an image so I can get a scaled chunk of the center of the image I use this to take a UIImage and return a small square representation.. a UIImage I've got some code that resizes an image so I can get a scaled chunk of the center of the image I use this to take a UIImage and return a small square representation of an image similar to what's seen in the album view of the Photos app. I know I could use a UIImageView and adjust the.. this to take a UIImage and return a small square representation of an image similar to what's seen in the album view of the Photos app. I know I could use a UIImageView and adjust the crop mode to achieve the same results but these images are sometimes displayed in UIWebViews . I've started to notice some crashes in this code..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically iphone share improve this question UIGraphicsBeginImageContext self.window.bounds.size self.window.layer renderInContext UIGraphicsGetCurrentContext UIImage image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData data UIImagePNGRepresentation image data writeToFile @ foo.png atomically YES UPDATE.. self.window.layer renderInContext UIGraphicsGetCurrentContext UIImage image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData data UIImagePNGRepresentation image data writeToFile @ foo.png atomically YES UPDATE April 2011 for retina display change the first line into this if UIScreen mainScreen respondsToSelector..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage simplest way to resize an UIImage In my iPhone app I take a picture with the camera then I want to resize it to 290 390 pixels. I was using this method to resize the image UIImage newImage image.. resize an UIImage In my iPhone app I take a picture with the camera then I want to resize it to 290 390 pixels. I was using this method to resize the image UIImage newImage image _imageScaledToSize CGSizeMake 290 390 interpolationQuality 1 It works perfectly but it's an undocumented function so I can't use it anymore with.. 1 It works perfectly but it's an undocumented function so I can't use it anymore with iPhone OS4. So... what is the simplest way to resize an UIImage iphone resize uiimage share improve this question The simplest way is to set the frame of your UIImageView and set the contentMode to one of the resizing options...
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have.. do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints a UIWebView but this cant give the performance and functionality that you would expect from a good PDF viewer. You can draw a PDF page to a CALayer or to a UIImage . Apple even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't.. page to a CALayer or to a UIImage . Apple even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents.. UIImage . Apple even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits prevents using it to create a real..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload UIImagePickerController result image orientation after upload I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController.. result image orientation after upload I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker setSourceType UIImagePickerControllerSourceTypeCamera imagePicker.. image orientation after upload I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker setSourceType UIImagePickerControllerSourceTypeCamera imagePicker setDelegate self self.navigationController..
Any quick and dirty anti-aliasing techniques for a rotated UIImageView? http://stackoverflow.com/questions/1136110/any-quick-and-dirty-anti-aliasing-techniques-for-a-rotated-uiimageview edges appear noticeably jagged. Is there anything I can do to make it look better It's clearly not being anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias options CGContextSetAllowsAntialiasing theContext true CGContextSetShouldAntialias.. noticeably jagged. Is there anything I can do to make it look better It's clearly not being anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias options CGContextSetAllowsAntialiasing theContext true CGContextSetShouldAntialias..
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 ref CGContextRelease bitmap CGImageRelease ref return result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation on the code that you have.. bitmap CGImageRelease ref return result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation on the code that you have is not being.. bitmap CGImageRelease ref return result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation on the code that you have is not being taken into..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees ref CGBitmapContextCreateImage bitmap UIImage newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double degrees return degrees M_PI 180 UIImage rotate..
Tricks for improving iPhone UITableView scrolling performance? http://stackoverflow.com/questions/1352479/tricks-for-improving-iphone-uitableview-scrolling-performance uitableview more glassy scrolling with uitableview Does anyone have any tips for improving uitableview scrolling performance iphone uitableview scrolling uiimage share improve this question Cache the height of the rows the table view can request this frequently Create a least recently used cache for the images used in..
Resize UIImage with aspect ratio? http://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio but with black on the top and bottom or sides depending on the original image size. Is there an easy way to do this similar to what I'm doing Thanks iphone uiimage core graphics share improve this question After you set your screen rect do something like the following to decide what rect to draw the image in float hfactor..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage perfectly but it's an undocumented function so I can't use it anymore with iPhone OS4. So... what is the simplest way to resize an UIImage iphone resize uiimage share improve this question The simplest way is to set the frame of your UIImageView and set the contentMode to one of the resizing options. Or you can use..
didFinishPickingMediaWithInfo return nil photo http://stackoverflow.com/questions/3088874/didfinishpickingmediawithinfo-return-nil-photo an image. I was using a great example from this forum to do this and I am pretty sure the calls are correct but never an image. Thanks in advance iphone uiimage camera uiimagepickercontroller share improve this question I know this is many months later but I struggled with this for hours and found this same question.. I was using a great example from this forum to do this and I am pretty sure the calls are correct but never an image. Thanks in advance iphone uiimage camera uiimagepickercontroller share improve this question I know this is many months later but I struggled with this for hours and found this same question all over this..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie images. But I don't have any idea how to do so. I hope someone can help me or send me a code snippet which does something like I want. Thx iphone export uiimage avfoundation share improve this question Take a look at AVAssetWriter and the rest of the AVFoundation framework . The writer has an input of type AVAssetWriterInput..
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 view.layer renderInContext UIGraphicsGetCurrentContext UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone uiimage scale retina display image capture share improve this question Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions as documented..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview UIImage mask UIImage imageNamed @ mask.png UIImage maskedImage self maskImage OrigImage withMask mask myUIIMage.image maskedImage iphone objective c ios uiimage mask share improve this question The tutorial uses this method with two parameters image and maskImage these you have to set when you call the method. An example..
Make movie file with picture Array and song file, using AVAsset http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset videoWriterInput Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int frameCount 0 for int i 0 i 20 i buffer self pixelBufferFromCGImage m_PictArray objectAtIndex i CGImage andSize size BOOL append_ok NO int j 0 while.. videoWriterInput Start a session videoWriter startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int frameCount 0 for int i 0 i m_PictArray count i buffer self pixelBufferFromCGImage m_PictArray objectAtIndex i CGImage andSize size BOOL append_ok..
http://stackoverflow.com/questions/158914/cropping-a-uiimage a UIImage I've got some code that resizes an image so I can get a scaled chunk of the center of the image I use this to take a UIImage.. I've got some code that resizes an image so I can get a scaled chunk of the center of the image I use this to take a UIImage and return a small square representation of an image similar to what's seen in the album view of the Photos app. I know.. square representation of an image similar to what's seen in the album view of the Photos app. I know I could use a UIImageView and adjust the crop mode to achieve the same results but these images are sometimes displayed in UIWebViews . I've started..
How to take a screenshot programmatically http://stackoverflow.com/questions/2200736/how-to-take-a-screenshot-programmatically UIGraphicsBeginImageContext self.window.bounds.size self.window.layer renderInContext UIGraphicsGetCurrentContext UIImage image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData data UIImagePNGRepresentation image data.. UIImage image UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext NSData data UIImagePNGRepresentation image data writeToFile @ foo.png atomically YES UPDATE April 2011 for retina display change the first line..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage simplest way to resize an UIImage In my iPhone app I take a picture with the camera then I want to resize it to 290 390 pixels. I was using this method to.. take a picture with the camera then I want to resize it to 290 390 pixels. I was using this method to resize the image UIImage newImage image _imageScaledToSize CGSizeMake 290 390 interpolationQuality 1 It works perfectly but it's an undocumented.. it's an undocumented function so I can't use it anymore with iPhone OS4. So... what is the simplest way to resize an UIImage iphone resize uiimage share improve this question The simplest way is to set the frame of your UIImageView and set..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create.. do I export UIImage array as a movie I have a serious problem I have an array with several UIImage objects. What I now want to do is create movie from those images. But I don't have any idea how to do so. I hope someone..
Fast and Lean PDF Viewer for iPhone / iPad / iOs - tips and hints? http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints and functionality that you would expect from a good PDF viewer. You can draw a PDF page to a CALayer or to a UIImage . Apple even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping.. even have sample code to show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages.. show how draw a large PDF in a Zoomable UIScrollview But the same issues keep cropping up. UIImage Method PDF's in a UIImage don't optically scale as well as a Layer approach. The CPU and memory hit on generating the UIImages from a PDFcontext limits..
iOS UIImagePickerController result image orientation after upload http://stackoverflow.com/questions/5427656/ios-uiimagepickercontroller-result-image-orientation-after-upload UIImagePickerController result image orientation after upload I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting.. after upload I am testing my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker setSourceType UIImagePickerControllerSourceTypeCamera.. my iPhone application on an iOS 3.1.3 iPhone. I am selecting capturing an image using a UIImagePickerController UIImagePickerController imagePicker UIImagePickerController alloc init imagePicker setSourceType UIImagePickerControllerSourceTypeCamera..
Any quick and dirty anti-aliasing techniques for a rotated UIImageView? http://stackoverflow.com/questions/1136110/any-quick-and-dirty-anti-aliasing-techniques-for-a-rotated-uiimageview anything I can do to make it look better It's clearly not being anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias options CGContextSetAllowsAntialiasing.. can do to make it look better It's clearly not being anti aliased with the background. iphone cocoa touch uiimageview uiimage antialiasing share improve this question Remember to set the appropriate anti alias options CGContextSetAllowsAntialiasing..
How to merge the perspective image(3D Transform)? http://stackoverflow.com/questions/12457047/how-to-merge-the-perspective-image3d-transform bacgroundImageView here mergedImage UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext iphone uiimage core image cgimage share improve this question You could create a CGImageRef that contain the distorted image to put..
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 ref return result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation.. result QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation.. QUESTION How do I RESIZE a UIImage pulled from the Camera WITHOUT rotating the pixels iphone uiimageview uiimage uiimagepickercontroller share improve this question The reason your code doesn't work is because the imageOrientation on the..
How to Rotate a UIImage 90 degrees? http://stackoverflow.com/questions/1315251/how-to-rotate-a-uiimage-90-degrees newImage UIImage imageWithCGImage ref CGContextRelease bitmap CGImageRelease ref return newImage iphone uikit uiimage core graphics rotation share improve this question What about something like static inline double radians double degrees..
Tricks for improving iPhone UITableView scrolling performance? http://stackoverflow.com/questions/1352479/tricks-for-improving-iphone-uitableview-scrolling-performance uitableview Does anyone have any tips for improving uitableview scrolling performance iphone uitableview scrolling uiimage share improve this question Cache the height of the rows the table view can request this frequently Create a least recently..
How can i take an UIImage and give it a black border? http://stackoverflow.com/questions/1354811/how-can-i-take-an-uiimage-and-give-it-a-black-border can i take an UIImage and give it a black border How can I set the border of a UIImage iphone ios objective c uiimageview uiimage share improve this question With OS 3.0 you can do this you need this import #import QuartzCore QuartzCore.h.. take an UIImage and give it a black border How can I set the border of a UIImage iphone ios objective c uiimageview uiimage share improve this question With OS 3.0 you can do this you need this import #import QuartzCore QuartzCore.h imageView.layer..
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 rect self.view..
Resize UIImage with aspect ratio? http://stackoverflow.com/questions/1703100/resize-uiimage-with-aspect-ratio sides depending on the original image size. Is there an easy way to do this similar to what I'm doing Thanks iphone uiimage core graphics share improve this question After you set your screen rect do something like the following to decide what..
CGImage/UIImage lazily loading on UI thread causes stutter http://stackoverflow.com/questions/1815476/cgimage-uiimage-lazily-loading-on-ui-thread-causes-stutter is the official way to solve this problem Thanks for reading all that any advice would be greatly appreciated iphone uiimage lazy loading exc bad access cgimage share improve this question The UIGraphics methods are designed to be called from..
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 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 is more..
UIImage resize (Scale proportion) [duplicate] http://stackoverflow.com/questions/2645768/uiimage-resize-scale-proportion UIImage imageCopy UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return imageCopy iphone resize uiimage share improve this question I used this single line of code to create a new UIImage which is scaled. Set the scale and..
The simplest way to resize an UIImage? http://stackoverflow.com/questions/2658738/the-simplest-way-to-resize-an-uiimage function so I can't use it anymore with iPhone OS4. So... what is the simplest way to resize an UIImage iphone resize uiimage share improve this question The simplest way is to set the frame of your UIImageView and set the contentMode to one..
How do I use the NSString draw functionality to create a UIImage from text http://stackoverflow.com/questions/2765537/how-do-i-use-the-nsstring-draw-functionality-to-create-a-uiimage-from-text a method that I give it an NSString and returns a UIImage with the text drawn into it. Please help iphone nsstring uiimage share improve this question You can try this updated for iOS 4 UIImage imageFromText NSString text set the font type..
didFinishPickingMediaWithInfo return nil photo http://stackoverflow.com/questions/3088874/didfinishpickingmediawithinfo-return-nil-photo from this forum to do this and I am pretty sure the calls are correct but never an image. Thanks in advance iphone uiimage camera uiimagepickercontroller share improve this question I know this is many months later but I struggled with this.. to do this and I am pretty sure the calls are correct but never an image. Thanks in advance iphone uiimage camera uiimagepickercontroller share improve this question I know this is many months later but I struggled with this for hours and..
http://stackoverflow.com/questions/3284185/get-pixel-color-of-uiimage Pixel color of UIImage How can I get the RGB value of a particular pixel in a UIImage iphone uiimage rgb pixel share improve this question You can't access the raw data directly but by getting the CGImage of this image..
How do I export UIImage array as a movie? http://stackoverflow.com/questions/3741323/how-do-i-export-uiimage-array-as-a-movie to do so. I hope someone can help me or send me a code snippet which does something like I want. Thx iphone export uiimage avfoundation share improve this question Take a look at AVAssetWriter and the rest of the AVFoundation framework . The..
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 UIImage img UIGraphicsGetImageFromCurrentImageContext UIGraphicsEndImageContext return img iphone uiimage scale retina display image capture share improve this question Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions..
http://stackoverflow.com/questions/5757386/how-to-mask-an-uiimageview UIImage maskedImage self maskImage OrigImage withMask mask myUIIMage.image maskedImage iphone objective c ios uiimage mask share improve this question The tutorial uses this method with two parameters image and maskImage these you have..
Make movie file with picture Array and song file, using AVAsset http://stackoverflow.com/questions/6061092/make-movie-file-with-picture-array-and-song-file-using-avasset startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int frameCount 0 for int i 0 i 20 i buffer self pixelBufferFromCGImage m_PictArray objectAtIndex i CGImage.. startWriting videoWriter startSessionAtSourceTime kCMTimeZero Video encoding CVPixelBufferRef buffer NULL convert uiimage to CGImage. int frameCount 0 for int i 0 i m_PictArray count i buffer self pixelBufferFromCGImage m_PictArray objectAtIndex..
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.. 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.. 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..
Any code/library to scale down an UIImage? http://stackoverflow.com/questions/1573758/any-code-library-to-scale-down-an-uiimage be watching this question to see if anyone has anything better faster. I just added the below to a category on UIimage . UIImage imageWithImage UIImage image scaledToSize CGSize newSize UIGraphicsBeginImageContext newSize image drawInRect..
post image to server in iphone http://stackoverflow.com/questions/16434537/post-image-to-server-in-iphone UIImage image which returns NSData and save it. and if you want to convert it into again UIImage create it using UIimage imageWithData NSData data method. void sendImageToServer UIImage yourImage UIImage imageNamed @ image.png NSData imageData..
Save and Retrieve of an UIImage on CoreData http://stackoverflow.com/questions/3353172/save-and-retrieve-of-an-uiimage-on-coredata am trying to save and retrieval of an image in core data. I am able to save an image successfully after convention of UIimage into NSData But when I am trying to get an image as NSData it shows output as given below case 1 When trying to display..
UIImage to base64 String Encoding http://stackoverflow.com/questions/3889478/uiimage-to-base64-string-encoding to base64 String Encoding How to convert UIimage to base64 encoded string I couldn't find any examples or codes with detailed regarding. iphone objective c share improve..
iPhone - CGImageCreateWithImageInRect rotating some camera roll pictures http://stackoverflow.com/questions/5076617/iphone-cgimagecreatewithimageinrect-rotating-some-camera-roll-pictures this question It is because the imageOrientation isn't taken into account. There is a similar question Resizing UIimages pulled from the Camera also ROTATES the UIimage and I've modified the code a bit to work with cropping image. Here you.. isn't taken into account. There is a similar question Resizing UIimages pulled from the Camera also ROTATES the UIimage and I've modified the code a bit to work with cropping image. Here you are static inline double radians double degrees return..
How to properly crop an image taken on iPhone 4G (with EXIF rotation data)? http://stackoverflow.com/questions/7203847/how-to-properly-crop-an-image-taken-on-iphone-4g-with-exif-rotation-data in totally random parts of the image after when that rotation code is called. I even tried using this code Resizing UIimages pulled from the Camera also ROTATES the UIimage And I resized the image to the same dimensions it had in order to achieve.. that rotation code is called. I even tried using this code Resizing UIimages pulled from the Camera also ROTATES the UIimage And I resized the image to the same dimensions it had in order to achieve the rotation then attempted to crop the image..
images from documents asynchronous http://stackoverflow.com/questions/12096338/images-from-documents-asynchronous improve this question One convenient way is to use blocks something like self loadFullImageAt imagePath completion ^ UIIMage image self.imageView.image image Where you would load the image as data since UIImage otherwise loads the image data deferred.. ^ completion image The callback is defined as typedef void ^MBLoaderCompletion UIImage image Here's an UIIMage category that implements the decompression code UIIMage Decode.h #import UIKit UIKit.h @interface UIImage Decode UIImage.. as typedef void ^MBLoaderCompletion UIImage image Here's an UIIMage category that implements the decompression code UIIMage Decode.h #import UIKit UIKit.h @interface UIImage Decode UIImage decodedImage @end UIIMage Decode.m #import UIImage Decode.h..
MFMailComposeViewController image orientation http://stackoverflow.com/questions/20204495/mfmailcomposeviewcontroller-image-orientation software that the image is fine to display as it is no rotation is necessary. Again the underlying storage of the UIIMage is 3264w x 2448h. Once you are clear about the difference between how the data is physically stored vs. how the orientation..
http://stackoverflow.com/questions/2240765/nsdata-to-uiimage to UIImage I'm trying to save a UIIMage and then retrieve it and display it. I've been successful by saving an image in the bundle retrieving it from there and..
How to create Http Post data to the web server? http://stackoverflow.com/questions/2251078/how-to-create-http-post-data-to-the-web-server the server. for instance Image file or just Text like that from a http form . For an image file that is in the format UIIMage NSData imageData NSData dataWithContentsOfFile ImagePath or NSData imageData UIImageJPEGRepresentation myImage.image 1.0..
http://stackoverflow.com/questions/5321369/generating-tiff-in-ios getting a TIFF representation from a UIImage in the search engines. I need to create a TIFF image preferably from my UIIMage or converting from a jpg representation. I see PNG and JPG support but nothing for TIFF images. The service I am uploading..
Save and Retrieve of an UIImage on CoreData http://stackoverflow.com/questions/3353172/save-and-retrieve-of-an-uiimage-on-coredata NSURL url NSURL URLWithString @ http www.cimgf.com images photo.PNG NSData data NSData alloc initWithContentsOfURL url uiImage UIImage imageWithData data NSData imageData UIImagePNGRepresentation uiImage newsObj setValue imageData forKey @ imgPng.. NSData alloc initWithContentsOfURL url uiImage UIImage imageWithData data NSData imageData UIImagePNGRepresentation uiImage newsObj setValue imageData forKey @ imgPng NSError error @try if managedObjectContext nil if managedObjectContext save error..
Make Background of UIView a Gradient Without Sub Classing http://stackoverflow.com/questions/844710/make-background-of-uiview-a-gradient-without-sub-classing CGImage from context CGImageRef cgImage CGBitmapContextCreateImage bitmapContext Create a UIImage from CGImage UIImage uiImage UIImage imageWithCGImage cgImage Release the CGImage CGImageRelease cgImage Release the bitmap context CGContextRelease..
UIView: how to do non-destructive drawing? http://stackoverflow.com/questions/865636/uiview-how-to-do-non-destructive-drawing CGRect rect UIGraphicsPushContext drawingContext CGImageRef cgImage CGBitmapContextCreateImage drawingContext UIImage uiImage UIImage alloc initWithCGImage cgImage UIGraphicsPopContext CGImageRelease cgImage uiImage drawInRect rect uiImage release.. drawingContext UIImage uiImage UIImage alloc initWithCGImage cgImage UIGraphicsPopContext CGImageRelease cgImage uiImage drawInRect rect uiImage release TODO can anyone optimize the drawRect so that only the usually tiny modified rectangle region.. uiImage UIImage alloc initWithCGImage cgImage UIGraphicsPopContext CGImageRelease cgImage uiImage drawInRect rect uiImage release TODO can anyone optimize the drawRect so that only the usually tiny modified rectangle region is used for the copy..
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