I have an image view, declared programmatically, and I am setting its image, also programmatically. However, I find myself unable to set the image to both fit the aspect and align centre to the image view. In other words, I want the image to: Scale down to fit the aspect, if the image is large. … Read more
I have a serious problem: I have an NSArray with several UIImage objects. What I now want to do, is create movie from those UIImages. 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. Edit: For … Read more
What do I need to do to save an image my program has generated (possibly from the camera, possibly not) to the system photo library on the iPhone? 15 Answers 15
I have an UIImageView with an image. Now I have a completely new image (graphic file), and want to display that in this UIImageView. If I just set myImageView.image = newImage; the new image is visible immediately. Not animatable. I want it to nicely fade into the new image. I thought maybe there’s a better … Read more
From the URL Image in Mail I’m adding image to mail view. It will show full image. But I want to calculate, proportionally change the height and width of the image. How can I get the height and width of UIImage? 8 Answers 8
Does anyone know how to convert a UIImage to a Base64 string, and then reverse it? I have the below code; the original image before encoding is good, but I only get a blank image after I encode and decode it. NSData *imageData = UIImagePNGRepresentation(viewImage); NSString *b64EncStr = [self encode: imageData]; NSString *base64String = [self … Read more
I have an app that supports iOS8 and later, built in Xcode 7 and I am using a XIB for a Launch Screen (I do not have launch images). The view contains a single UILabel with the app version, and 2 UIImageViews with images that are both present in Images.xcassets: A logo and a splash … Read more
My code works fine for normal devices but creates blurry images on retina devices. Does anybody know a solution for my issue? + (UIImage *) imageWithView:(UIView *)view { UIGraphicsBeginImageContext(view.bounds.size); [view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage * img = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return img; } 17 Answers 17
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 presentModalViewController:imagePicker animated:YES]; [imagePicker release]; – (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { self.image = [info objectForKey:UIImagePickerControllerOriginalImage]; imageView.image = self.image; [self.navigationController dismissModalViewControllerAnimated:YES]; submitButton.enabled = YES; } I then … Read more
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 iPhone OS4. So… … Read more
