Making a UIImage to a circle form
try this code yourImageView.layer.cornerRadius = yourImageView.frame.size.height /2; yourImageView.layer.masksToBounds = YES; yourImageView.layer.borderWidth = 0; this show image like ios 7 circle image thanks
uiimage
How can I change the color of a UIImage? [duplicate]
The accepted answer is correct, but there is a much more easy way for UIImageView: Obj-C: UIImage *image = [UIImage imageNamed:@”foo.png”]; theImageView.image = [image imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate]; [theImageView setTintColor:[UIColor redColor]]; Swift 2: let theImageView = UIImageView(image: UIImage(named:”foo”)!.imageWithRenderingMode(UIImageRenderingMode.AlwaysTemplate)) theImageView.tintColor = UIColor.redColor() Swift 3: let theImageView = UIImageView(image: UIImage(named:”foo”)!.withRenderingMode(.alwaysTemplate)) theImageView.tintColor = UIColor.red
How do you create a UIImage View Programmatically – Swift
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
Set custom images to the UIBarButtonItem but it doesn’t show any image
Thats because UIBarButtonItem image’s default rendering mode always draw the image as a template image, ignoring its color information (UIImageRenderingModeAlwaysTemplate). Just create your image using UIImage’s method imageWithRenderingMode always original. UIImage(named: “yourImageName”)!.withRenderingMode(.alwaysOriginal)
Creating a UIImage from a rotated UIImageView
OK – at last I seem to have done it. Any comments on the correctness would be useful… needed a translate, a rotate, a scale and an offset from the drawing rect position to make it work. Code is here: CGAffineTransform transform = CGAffineTransformIdentity; transform = CGAffineTransformTranslate(transform, boundingRect.size.width/2, boundingRect.size.height/2); transform = CGAffineTransformRotate(transform, angle); transform = … Read more
UIImage imageNamed requires pathForResource?
Not at all … is the answer to the original question: How necessary is it to search for a path to an image using the NSBundle method pathForResource when creating a UIImage using imageNamed? Not much .. is how correct the accepted answer from Zoul and the other one from Ranga are. To be fair: … Read more
Catching error: Corrupt JPEG data: premature end of data segment
In response to Slee’s question above, this is the method I use: -(BOOL)dataIsValidJPEG:(NSData *)data { if (!data || data.length < 2) return NO; NSInteger totalBytes = data.length; const char *bytes = (const char*)[data bytes]; return (bytes[0] == (char)0xff && bytes[1] == (char)0xd8 && bytes[totalBytes-2] == (char)0xff && bytes[totalBytes-1] == (char)0xd9); }
Save Photos to Custom Album in iPhones Photo Library
If you are using iOS6, Fernando’s answer will not work, because the saveImage selector is no longer available. The process is pretty confusing, and I have not seen any clear answers posted, so here is the method I’ve used to solve this in iOS6. You will need to use a combination of the following: Create … Read more
How to create an image from UILabel?
From: pulling an UIImage from a UITextView or UILabel gives white image. // iOS – (UIImage *)grabImage { // Create a “canvas” (image context) to draw in. UIGraphicsBeginImageContextWithOptions(self.bounds.size, self.opaque, 0.0); // high res // Make the CALayer to draw in our “canvas”. [[self layer] renderInContext: UIGraphicsGetCurrentContext()]; // Fetch an UIImage of our “canvas”. UIImage *image … Read more
Convert UIImage to NSData and convert back to UIImage in Swift?
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()