uigraphicsimagerenderer

问题 This is the code I am using extension UIImage { var ellipseMasked: UIImage? { guard let cgImage = cgImage else { return nil } let rect = CGRect(origin: .zero, size: size) return UIGraphicsImageRenderer(size: size, format: imageRendererFormat) .image{ _ in UIBezierPath(ovalIn: rect).addClip() UIImage(cgImage: cgImage, scale: scale, orientation: imageOrientation) .draw(in: rect) } } } This is the image I got The background color is black. How can I make the background transparent? I tried

问题 PROBLEM : After I take screenshot the image is blurry when check by zooming. The text inside image seems to be blurred when zoomed. I know this question have been raised many a times but none of them have desired solution. I already checked quite a few post like this one All the solution been shared so far on this forum are repeated or same in any other way but none of them has a solution for the problem. Here is what I am doing: extension UIView { func asImage() -> UIImage? { let format =

问题 PROBLEM : After I take screenshot the image is blurry when check by zooming. The text inside image seems to be blurred when zoomed. I know this question have been raised many a times but none of them have desired solution. I already checked quite a few post like this one All the solution been shared so far on this forum are repeated or same in any other way but none of them has a solution for the problem. Here is what I am doing: extension UIView { func asImage() -> UIImage? { let format =

问题 PROBLEM : After I take screenshot the image is blurry when check by zooming. The text inside image seems to be blurred when zoomed. I know this question have been raised many a times but none of them have desired solution. I already checked quite a few post like this one All the solution been shared so far on this forum are repeated or same in any other way but none of them has a solution for the problem. Here is what I am doing: extension UIView { func asImage() -> UIImage? { let format =

问题 I'm working on iOS app which should enable users to create Instagram stories photos and export them to Instagram. Basically app like Unfold, Stellar, Chroma Stories... I've prepared UI where user can select from prepared templates and add to them own photos with filters, labels etc. My question is - what is the best way to export created UIView to bigger Image? I mean how to get the best quality, sharp pixels of labels etc? Because the template view with subviews (added photos, labels...) is

问题 I'm working on iOS app which should enable users to create Instagram stories photos and export them to Instagram. Basically app like Unfold, Stellar, Chroma Stories... I've prepared UI where user can select from prepared templates and add to them own photos with filters, labels etc. My question is - what is the best way to export created UIView to bigger Image? I mean how to get the best quality, sharp pixels of labels etc? Because the template view with subviews (added photos, labels...) is