Good morning to all, i have now the following method that shows the AFOpenFlow: NSString *imageName; for (int i=0; i < 10; i++) { imageName = [[NSString alloc] initWithFormat:@"cover_%d.jpg", i]; imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:imageName]]; CGRect frame = [imageView frame]; frame.size.w...
Ii'm using this NSURL code to display an image. what I want to do is to insert a url from my database table in place of the static url shown in the code below: Does anyone know how I should proceed? NSURL *url = [NSURL URLWithString:@"http://www.nyapplecountry.com/images/photosvarieties/redrome04.jpg"]; UIImage *image = [UIImage imageW...
I need to load localized images in my iOS app, but also have to take into account that they might need to be the ...@2x kind. How can I do this? ...
I've written an iPhone application that takes input from a user and updates a bitmap context based on the input. After the update, it then updates the display of a UIView. I am accomplishing such by implementing drawRect in a UIView subclass. Currently I am using Quartz 2D. Given that the updates are occurring multiple times per second,...
Is there a way to set borders to a UIImage. I know how to set it for UIImageView, but my problem is the UIImage that I load up in a UIImageview wont be of the same size or aspect ratio as the UIImageView. Hence Ive kept the UIImageView mode to aspect fit. Giving a border to UIImageView now would border the entire UIImageView rather than ...
Hi I have made the decision to use monotouch to develop an application that browses an rss feed and displays a grid of images much like browsing the picture library actually on the device. My issue is that I have NO idea (even after extensive googling) as to what control I should use. I want to be able to swish through the list of im...
What's the best way to save and retrieve an array of images across app restarts? I'm implementing a caching feature for offline viewing of downloaded images and just want to make sure I'm using the right persisting methods. Thanks! ...
I would like to run a calculation to see if the bottom 20px of a UIImage are generally dark or light. I am displaying a small amount of text on top of this image (one line at the bottom, ie. the bottom 20px), and would like to determine dynamically whether I should make this text black or white. I am guessing I should be able analyze ea...
Following is a snippet of my code: in the .h file: @property (nonatomic, retain) UIImage *photo; @property (nonatomic, retain) NSData *photoData; in the .m file: @synthesize photo; @synthesize photoData; ... photo = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; {*} ... NSLog(@"b1"); self.photoData = UIImagePNGReprese...
Hi all. I have a single image that needs to be placed on multiple UIImageView. I am wondering whether there is a way to save the memory in doing this? For e.g., I have a pic file. I can create one UIImage object for this file. If I create multiple UIImageView and init them with the single UIImage Object, will that save the memory? t...
Hi @ll I want to convert a UIImage object to a CVPixelBufferRef object, but I have absolutly no idea. And I can't find any example code doing anything like this. Can someone please help me? THX in advance! C YA ...
Hi, I want to display so many images in table cells. I knew two methods to show an image. One is creating an instance to UIImageView and show it CGRect rect=CGRectMake(x,y,width,height); UIImageView *image=[[UIImageView alloc]initWithFrame:rect]; [image setImage:[UIImage imageNamed:@"sample.jpg"]]; Another method is, CGRect rec...
Hello All I am scaling images by myself using the following codes. The code is fine and the images are scaled without problem. UIImage *originImg = img; size = newSize; if (originImg.size.width > originImg.size.height) { newSize = CGSizeMake(size.width, originImg.size.height * size.width / originImg.size.width); } else { newSi...
When creating an UIImage with corrupt/incomplete JPEG data, the console will print out <Error>: Corrupt JPEG data: premature end of data segment The incomplete image will be shown, with grey filling up the incomplete part. I do not want this to happen. I desperately tried with a try-catch block but it does catch the error. Is there a...
Hello, This is what I do: I have a favicon.ico in my resources (for example http://google.com/favicon.ico) Then I have a UIImageView which loads that image. self.imgTestIcon.image = [UIImage imageNamed:@"favicon.ico"]; The image showed in the simulator or the in iPhone is the same but with the red color switched with the blue one. C...
I have saved my images in database with type BLOB. Now I am extracting these images from database using sql stmt and saving it in a NSData object. see the following code snippet NSData *img = [[NSData alloc] initWithBytes:sqlite3_column_blob(loadInfostmt, 4) length: sqlite3_column_bytes(loadInfostmt, 4)]; self.birdImage = [UIImage ima...
Hi everyone! In my game I'm grabbing an image from the iPhone's photo library using the UIImagePickerController, which returns a UIImage. Because the image is a huge resolution (1536x2048), this UIImage takes up almost 20mb in memory. To resolve this, I shrink the image significantly before using it to generate a sprite and this works i...
I have divergent needs for the image returned from the iPhone camera. My app scales the image down for upload and display and, recently, I added the ability to save the image to the Photos app. At first I was assigning the returned value to two separate variables, but it turned out that they were sharing the same object, so I was gettin...
Hi All, I'm trying to do something which should in theory be quite simple, but I've been chasing my tail around for days now. I'm trying to take a touch event from a screen overlay, capture an image, and crop a section of the image out around where the finger touched. Now all my code is working fine, the overlay, events, cropping etc....
I’m creating a UIButton programmatically and then adding a masked image with setImage: CGRect photoFrame = CGRectMake(11, 11, 180, 120); UIButton *cardPhotoButton = [[UIButton alloc] initWithFrame:photoFrame]; cardPhotoButton.backgroundColor = [UIColor clearColor]; UIImage *cardPhoto = [[UIImage alloc] init]; cardPhoto = [self maskImag...