First you create a UIImage from your image file, then create a UIImageView from that: let imageName = “yourImage.png” let image = UIImage(named: imageName) let imageView = UIImageView(image: image!) Finally you’ll need to give imageView a frame and add it your view for it to be visible: imageView.frame = CGRect(x: 0, y: 0, width: 100, … Read more
With OS > 3.0 you can do this: //you need this import #import <QuartzCore/QuartzCore.h> [imageView.layer setBorderColor: [[UIColor blackColor] CGColor]]; [imageView.layer setBorderWidth: 2.0];
You can do it this way (synchronously, but compact): UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:MyURL]]]; A much better approach is to use Apple’s LazyTableImages to preserve interactivity.
Another nice solution, Swift 3.0 public extension UIImage { convenience init?(color: UIColor, size: CGSize = CGSize(width: 1, height: 1)) { let rect = CGRect(origin: .zero, size: size) UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0) color.setFill() UIRectFill(rect) let image = UIGraphicsGetImageFromCurrentImageContext() UIGraphicsEndImageContext() guard let cgImage = image?.cgImage else { return nil } self.init(cgImage: cgImage) } } Swift 2.2 compatible, is … Read more
I created a category around UIButton to be able to set the background color of the button and set the state. You might find this useful. @implementation UIButton (ButtonMagic) – (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state { [self setBackgroundImage:[UIButton imageFromColor:backgroundColor] forState:state]; } + (UIImage *)imageFromColor:(UIColor *)color { CGRect rect = CGRectMake(0, 0, 1, 1); UIGraphicsBeginImageContext(rect.size); CGContextRef context = … Read more
UIImage(data:imageData,scale:1.0) presuming the image’s scale is 1. In swift 4.2, use below code for get Data(). image.pngData()
In iOS7 there is new button type called UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0), // standard system button Check your .xib file and change button type to Custom To do this programmatically, add this line to the viewDidLoad: [UIButton buttonWithType:UIButtonTypeSystem];
I believe the easiest way (and thread safe too) is to do: //assume that the image is loaded in landscape mode from disk UIImage * landscapeImage = [UIImage imageNamed:imgname]; UIImage * portraitImage = [[UIImage alloc] initWithCGImage: landscapeImage.CGImage scale: 1.0 orientation: UIImageOrientationRight]; Note: As Brainware said this only modifies the orientation data of the image – … Read more
Just pasting the solution: Just like @manohar said imageView.contentMode = UIViewContentModeCenter; if (imageView.bounds.size.width > ((UIImage*)imagesArray[i]).size.width && imageView.bounds.size.height > ((UIImage*)imagesArray[i]).size.height) { imageView.contentMode = UIViewContentModeScaleAspectFit; } solved my problem
Take a look at AVAssetWriter and the rest of the AVFoundation framework. The writer has an input of type AVAssetWriterInput, which in turn has a method called appendSampleBuffer: that lets you add individual frames to a video stream. Essentially you’ll have to: 1) Wire the writer: NSError *error = nil; AVAssetWriter *videoWriter = [[AVAssetWriter alloc] … Read more