Hi all, i'm looking for a way to draw multiple images (downloaded from a webservice) inside a single uiimageview. So it'd go like i downloaded image #1, and i'd like to draw it inside rect (0,0,100,100) then #2 at (0,100,100,100) etc. I'd like to then be able to take the entire composition and save it as an image in camera roll. thanks i...
I am new to iphone development.I have created UISegmentedControl having 2 segments. I want to to display images for each segment instead of title.Here is my code NSArray *itemArray = [NSArray arrayWithObjects: @"segment1", @"segment2", nil]; UISegmentedControl *segmentedControl = [[UISegmentedControl alloc] initWithItems:itemArray]; se...
I have an array of NSStrings: Flower Car Tree Cat Shoe Some of these strings have images associated with them; some don't. I can build an image name by appending .png to the name (e.g. Flower.png). How do I check whether that image actually exists within the bundle before I try to load it into the view? ...
Hey. I have a tableView in my app that I load in images to from the NSDocumentDirectory. It works, but when scrolling up and down, the app seems to freeze a bit. I know that this is because of the images getting loaded in, and not getting cached, but I don't know how I can load them in later, after they've been created. The images are ...
What's the most efficient way to create a thumbnail from an arbitrary web image in iPhone? ...
Hi, I need in animation of sequence of more PNG files (300 png files and size is 320x480). I've try make it with 12 fps, but sometime iPhone 3g have lags... 3gs working fine. I think 2g working with lags always. I've use one UIImageView and loading images in NStimer callback by UIImage:imageWithContentOfFile. May be this is not best w...
[sld1 setThumbImage:[UIImage imageNamed:@"Blue.png"] forState:UIControlStateHighlighted]; [sld1 setThumbImage:[UIImage imageNamed:@"Blue.png"] forState:UIControlStateNormal ]; Would that cause the slider-bar image to disappear? Mine are all gone. (The thumb-image displays just fine.) Apple's docs make it sounds like I can use an...
I got a UIView subclass that draws a UIImage as its background. The image is created using the stretchableImageWithLeftCapWidth:topCapHeight: method, it has round edges. I also use an animation block inside of which I resize my view. I had hoped that during animation, the drawRect:method would get called sometimes, which would result in...
I have been trying to minimize my memory footprint with UIImagePickerController, but I'm starting to think that the memory problems I am having are resulting from poor memory management, instead of a particular way to handle the UIImagePickerController object. My workflow is this: The "Edit Image" button is clicked, which presents a UIA...
I'm trying to set up a UITableViewCell that can have an image in the upper right corner. I have it working for portrait mode, but when I rotate to landscape, the image disappears. Here's the code: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifi...
I've taken a screenshot of my iPhone app running and I'd like to use that image as a png to be drawn by the app instead of generated graphics. When I take the screenshot, it looks fine. However, when that is saved as a PNG file, added to the Xcode project and then displayed back on the screen of the phone (or simulator) the colours are ...
I'm developing a custom UIView component. It's a simple little stopwatch, with PNG graphics for all the digits. There are lots of tutorials around, so I'm figuring most of it out on my own. But I have two questions: First of all, the component will always have a particular size (141 x 32), but I don't know how to specify that from withi...
I have a UIImage that I want to display with TTPhotoViewController, but TTPhotoViewController does not take a UIImage as an argument. It does take a TTPhoto as an argument, so I'm wondering if there is a way to convert a UIImage to a TTPhoto or if there is any other way to get the TTPhotoViewController to display my UIImage other than se...
Hi all - I have been working with Apple's iPhone CoreDateRecipes sample code to learn more about tableviews and core data. I have coded my own test app based off of that sample, and it works well except for one thing. When I choose a photo for the 'recipe', no matter if it is from the camera or the library, when I hit "Done" to leave e...
I have a UIImageView within a UIScrollView which I have enabled the user to perform any number of flip and rotation operations on. I have this all working which allows the user to zoom, pan, flip and rotate. Now I want to be able to save the final image out to a png. however it is doing my head in trying to work this out... I have seen...
Hi All I would like to stop a UIImageView from upscaling as it looks terrible. Unfortunately, I cannot control the UIImage content it is holding, so need to force it not to attempt the upscale on an iPhone 4 retina display. What's the best advice here? ...
I'm trying to figure out if there is any way to mirror an image. For example, take a picture of someone's face and then cut it in half and show what their face looks like with each side mirrored. There doesn't seem to be any tricks like this in CGAffineTransform functions. Graphics experts please help!!! ...
I need to capture a UIView and all it's subviews into a UIImage. The problem is that part of the view is off screen, so I can't use the screen capture function, and when I try to use the UIGraphicsGetImageFromCurrentImageContext() function, it doesn't seem to capture the subviews as well. Should it be capturing the subviews and I'm just ...
I'm creating a menu and I want the buttons to "pop" I guess on the screen. Basically I want to start at 0px dimensions and then go up to the full size of the buttons. I can animate the alpha and the position if I want to but can't do the dimensions and I think its because its an image on the button. If I do a UIButtonTypeRoundRect you c...
I amy trying to capture video from a camera. i have gotten the captureOutput:didOutputSampleBuffer: callback to trigger and it gives me a sample buffer that i then convert to a CVImageBufferRef. i then attempt to convert that image to a UIImage that i can then view in my app. - (void)captureOutput:(AVCaptureOutput *)captureOutput didOut...