I have a UIImage. I have an EAGLView in my app, which is a derivative of the GLPaint ("Shake Me!") sample program. The UIImage is full-screen (320x480.) Actually, it's a screen-capture of the EAGLView's image from earlier in the program (like in this question.) I'd like to set the layer-contents of the EAGLView to the image, and then...
Hi All, I am trying to save a rotated and scaled UIImageView as an UIImage in the position and with the zoom scale that the user edited too. But I can only manage to save the original image as it was before editing. How can I save the image as it is shown in the UIImageView with the same scaling and rotation? I have read that I need to u...
in my application, i'm loading images to the cells of a table. But, when i scroll the table, the image goes out of sight of the table(goes up), it wont be there even if i scroll back. customCell.h #import <UIKit/UIKit.h> @interface CustomCell : UITableViewCell<UINavigationControllerDelegate, UIImagePickerControllerDelegate> { UIViewCon...
NSMutableString *url = [[NSMutableString alloc] init]; [url appendString:@"uploadImage.do"]; NSData *imageData = UIImageJPEGRepresentation(selectedImage,1.0); // setting up the request object now NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; [request setURL:[NSURL URLWithString:url]]; [request se...
Hi, how can I save a GIF on the iPhone? The SDK includes only UIImageJPEGRepresentation and UIImagePNGRepresentation but nothing for GIFs or other image formats, is there a way to convert a UIImage to a GIF and save it? GM ...
resizing a camera UIImage returned by the UIImagePickerController takes a ridiculously long time if you do it the usual way as in this post. [update: last call for creative ideas here! my next option is to go ask Apple, I guess.] Yes, it's a lot of pixels, but the graphics hardware on the iPhone is perfectly capable of drawing lots of...
I have a uiscrollview with contentsize 1280*1280 and 25 images of equal size loaded in it. When i scroll and meet an end, I want to know the identity of the image which is currently present at the screen centre. Given below is the code that i used to load the images into the scrollView. How can i figure it out? for (i = 0; i < 5; i...
I load a set of images in my screen. When it loads on one image I want a pin to be pointed with some value written in the blackbox on that image. But how to get a blackbox like the one we see, when we click on the pinpoint of a map? And how to keep that image or whatever it is on that image ...
I cache the images to the document directory of my app using the following code. NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *saveDirectory = [paths objectAtIndex:0]; But even after I close the application, its still there. How can I clear it when I lose my app. I am doing...
I have a mask (loaded from a 256 grey PNG) that I want to apply to an image that's being used as part of my process for drawing a UITableViewCell's imageView.image property. When the cell isn't selected/highlighted, I CGImageCreateWithMask with a square of the proper color and the mask, then drawAtPoint: it into the image I'm building. ...
I am making a camera app which includes digital zoom. I have a slider (zoomSlider) that has a minimum value of 1 and a maximum value of 4. When the user taps the camera button, it takes a picture, and then I crop it for the zooming. I have two problems: How do I crop the exact middle of the image? (eg. 2x zoom, Rect would be centered wi...
How do I save an Image to User Defaults ...
I must have tried over a dozen incarnations of this code. And looked at +100 answers. IT SHOULD BE so simple. A real basic animation, (using IB this time) but ALWAYS shows a memory leak. NO matter where I put my nil, my release, tried a zillion combinations. // implement viewDidLoad to do additional setup after loading the view, typic...
now i implement download image function so how did i know that image is already load and get it from memory? ...
I am getting image data in form of char * (stored on sql server). I want to convert those data to NSData to display image in UIImage view. char * data is a bytearray for source image. how can i convert char * to NSData to display to get an UIImage instance for displaying in UIImageView? Thanks.. ...
I want to save and read a UIImage to my temp folder when my app closes and then load and delete it when the app loads. How do I accomplish this. Please help. ...
I need to draw a series of PNGs into a CG context so I can blend them together: CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetBlendMode (context, kCGBlendModeOverlay); Currently I have my app working based on just drawing each image as a UIImageView and adding them as a subview to the view file via: [self addSubview...
I have array with colors as its objects. I want to create an image out of it. Actually, what is happening is , i'm taking the pixel value of each pixel of an image, modify it and store in a mutable array its object. Now want to draw an image from this. How to do that?? ANy idea??? -(UIImage*)modifyPixels:(UIImage*)originalImage { NS...
Here my code UIImage * result = [[UIImage alloc] imageWithContentsOfFile:filePath]; here my error log > 2009-12-22 17:00:44.137 > DrillDownApp[2061:207] touchesBegan > from root 2009-12-22 17:00:44.138 > DrillDownApp[2061:207] touchesBegan > from root at X = 52.000 and Y = 87.000 > at INDEX = 0 2009-12-22 17:00:44.139 > DrillDownApp[...
Does kCGBlendModeOverlay not work exactly like Photoshop's Overlay blending mode? I'm trying to overlay three images into a graphic context via: [uiimageGreen drawAtPoint:CGPointMake(x, y) blendMode:kCGBlendModeOverlay alpha:1.0]; [uiimageRed drawAtPoint:CGPointMake(x, y) blendMode:kCGBlendModeOverlay alpha:1.0]; [uiimageBlue drawAtPoin...