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2014/10/15 ¤U¤È 10:15:19
iphone Programming Glossary: uiimagesHow to get the color of a pixel in an UIView? http://stackoverflow.com/questions/1160229/how-to-get-the-color-of-a-pixel-in-an-uiview of the UIView are changed using CoreAnimation. I know there are some complex ways to extract color information from UIImages. However I couldn't find a solution for UIViews. In Pseudo Code I am looking for something like pixel view getPixelAtPoint..
Received memory warning on setimage http://stackoverflow.com/questions/12773074/received-memory-warning-on-setimage question This situation memory warnings and application quitting while attempting to load multiple full resolution UIImages into a view has attempted to burn me a couple times in my iOS programming career. You need to make a shrinked down copy..
http://stackoverflow.com/questions/1684799/generate-hash-from-uiimage hash from UIImage I'm trying to compare two UIImages from the file system to see if they are the same. Obviously I can't use NSObject's hash method since this returns a hash..
http://stackoverflow.com/questions/2486705/storing-image-in-plist decoder return self initWithData decoder decodeDataObject @end When this has been added you will be able to store UIImages in plist with ie Get a full path to a plist within the Documents folder for the app NSArray paths NSSearchPathForDirectoriesInDomains..
UITableView issue when using separate delegate/dataSource http://stackoverflow.com/questions/254354/uitableview-issue-when-using-separate-delegate-datasource
Cocoa Touch - Comparing Images http://stackoverflow.com/questions/3400707/cocoa-touch-comparing-images I compare an image to another one Thanks iphone cocoa touch uiimage share improve this question If you have two UIImages you should get their CGImageRef quartz representations from those objects. Then create two new bitmap contexts backed by..
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 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 time render of new zoom levels. CATiledLayer Method Theres a..
How should I store UIImages within my Core Data database? http://stackoverflow.com/questions/3908910/how-should-i-store-uiimages-within-my-core-data-database should I store UIImages within my Core Data database I am developing an application which demands around 100 images or maybe more to be pre inserted.. along with other related information. Now I can easily add other data by just writing a few lines of code but for UIImages I am unsure how to do it without writing a lot of code. I was wondering is there anyway to do this easily or if there isn't.. and declare a property for this image attribute @property nonatomic retain UIImage thumbnailImage You can read UIImages from and write UIImages to this property and they will be transparently changed to and from NSData to be stored in the database...
ASSETWriterInput for making Video from UIImages on Iphone Issues http://stackoverflow.com/questions/3983882/assetwriterinput-for-making-video-from-uiimages-on-iphone-issues for making Video from UIImages on Iphone Issues I try the following 2 methods of appending UIImage s pixelbuffer to ASSETWriterInput . Everything looks..
Just two rounded corners? [duplicate] http://stackoverflow.com/questions/4845211/just-two-rounded-corners context rect radius yourMask CGContextClosePath context CGContextClip context As I said I was doing this for UIImages so my code isn't exactly set up for use in drawRect but it should be pretty easy to adapt it. You're basically just building..
layer.renderInContext doesn't take layer.mask into account? http://stackoverflow.com/questions/4896296/layer-renderincontext-doesnt-take-layer-mask-into-account doesn't take layer.mask into account I'm trying to render some UIImages into 1 single image that I can save in my photo album. But it seems to as if the layer.renderInContext doesn't take a layermask..
how create simple checkbox? [duplicate] http://stackoverflow.com/questions/5368196/how-create-simple-checkbox you want create 2 images sizes 20x20 one empty square and another of the same square with the checkmark in it Create 2 UIImages with these new images then checkbox setBackgroundImage UIImage imageNamed @ notselectedcheckbox.png forState UIControlStateNormal..
Create a UIImage from two other UIImages on the iPhone http://stackoverflow.com/questions/679245/create-a-uiimage-from-two-other-uiimages-on-the-iphone a UIImage from two other UIImages on the iPhone I'm trying to write an animation on the iPhone without much success getting crashes and nothing seems to..
iPhone Watermark on recorded Video. http://stackoverflow.com/questions/7205820/iphone-watermark-on-recorded-video video using AVAssetWriter . I would suggest adding them in real time so you're not filling up memory with tons of UIImages. How do I export UIImage array as a movie This post shows how to add the UIImages you have processed to a video for a given.. not filling up memory with tons of UIImages. How do I export UIImage array as a movie This post shows how to add the UIImages you have processed to a video for a given duration. This should get you well on your way to watermarking your videos. Remember..
Dispelling the UIImage imageNamed: FUD http://stackoverflow.com/questions/924740/dispelling-the-uiimage-imagenamed-fud to go the extra mile and do it myself. My current basic understanding is that it's a simple NSMutableDictionary of UIImages referenced by filename. It gets bigger and when memory runs out it gets a lot smaller. For example does anyone know for..
How can you apply distortions to a UIImage using OpenGL ES? http://stackoverflow.com/questions/9886843/how-can-you-apply-distortions-to-a-uiimage-using-opengl-es able to tweak that to produce your own custom effects from this same base. It's fairly easy to apply these filters to UIImages. If you have just one filter you'd like to use you can do something like the following UIImage inputImage UIImage imageNamed..
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 me a 1200 x 1600 pixel..
Table View with Images, slow load and scroll http://stackoverflow.com/questions/4071497/table-view-with-images-slow-load-and-scroll CellIdentifier autorelease Only draw images that are the same size of the cell ie. if a cell is 44 px high keep UIimages at 44px . If images are bigger you might have to process the images after downloading them from the internet. Don't use..
A simple way to put a UIImage in a UIButton http://stackoverflow.com/questions/4502013/a-simple-way-to-put-a-uiimage-in-a-uibutton large images to fit the button. Never clip any of the image edges. Never require the put UIButtons over all your UIimages hack. Don't require everyone to upgrade to v4.2.1 just to use new framework methods. I see so many apps with so many fully..
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 are..
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..
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