Hope this may help you, var bottomImage = UIImage(named: “bottom.png”) var topImage = UIImage(named: “top.png”) var size = CGSize(width: 300, height: 300) UIGraphicsBeginImageContext(size) let areaSize = CGRect(x: 0, y: 0, width: size.width, height: size.height) bottomImage!.draw(in: areaSize) topImage!.draw(in: areaSize, blendMode: .normal, alpha: 0.8) var newImage:UIImage = UIGraphicsGetImageFromCurrentImageContext()! UIGraphicsEndImageContext() All the Best 🙂
You have to iterate through each pixel in the image and take its rgb values Check its rgb values matches your fromColor rgb values, if yes change the pixel value to your toColor rgb values.If not, just leave that pixel and go to next one.. Wrote a function from memory..errors possible..correct yourself -(UIImage*)changeColor:(UIImage*)myImage fromColor:(UIColor*)fromColor toColor:(UIColor*)toColor{ … Read more
This is not possible with the current MessageUI API: the MSMessageComposeViewController doesn’t accept attachments like the MFMailComposeViewController does. The only way to do this currently is to use an external service that allows you to send mms via a REST call for example. GSMA defines a REST specification for exactly this purpose: http://www.gsmworld.com/oneapi/reference_documentation-version_1.html (multiple pdf’s … Read more
FBProfilePictureView is a UIView, this UIView contains a UIImageView, that is your image, you can get the UIImage from that UIImageView: profilePictureView is a FBProfilePictureView UIImage *image = nil; for (NSObject *obj in [profilePictureView subviews]) { if ([obj isMemberOfClass:[UIImageView class]]) { UIImageView *objImg = (UIImageView *)obj; image = objImg.image; break; } } EDIT: add another … Read more
That’s the right way to go: + (UIImage *) imageWithView:(UIView *)view { UIGraphicsBeginImageContextWithOptions(view.bounds.size, view.opaque, [[UIScreen mainScreen] scale]); [view.layer renderInContext:UIGraphicsGetCurrentContext()]; UIImage * img = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return img; } This method is an extension method for UIImage class, and it will also take care of making the image looks good on any future high-resolution devices.
As pointed out on this SO question there is a simple way to save pngs in your Photo Albums: UIImage* image = …; // produce your image NSData* imageData = UIImagePNGRepresentation(image); // get png representation UIImage* pngImage = [UIImage imageWithData:imageData]; // rewrap UIImageWriteToSavedPhotosAlbum(pngImage, nil, nil, nil); // save to photo album
You need to setup the graphics context first: UIGraphicsBeginImageContext(myView.bounds.size); [myView.layer renderInContext:UIGraphicsGetCurrentContext()]; viewImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext();
Set your view controller up as a <UIScrollViewDelegate> Draw your UIScrollView the size you want for the rectangle at the center of the view. Set the max zoom in the inspector to something bigger than 1. Like 4 or 10. Right click on the scroll view and connect the delegate to your view controller. Draw … Read more
There is no direct way of converting an Image to UIImage. instead, you should treat the Image as a View, and try to convert that View to a UIImage. Image conforms to View, so we already have the View we need. now we just need to convert that View to a UIImage. We need 2 … Read more
I think you are not checking the source type. You might be doing self.sourceType =UIImagePickerControllerSourceTypePhotoLibrary; If this is the case, then you have to check the source type before assigning it directly. like if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypePhotoLibrary]) { // Set source to the Photo Library self.sourceType =UIImagePickerControllerSourceTypePhotoLibrary; } I hope it helps