transparent

问题 I am building a product configuration module which requires that multiple transparent PNGs of the same size (which represent product parts) be flattened onto one image. At first I tried this which made the composition of the 3 images but on a black background: <?php $x = 500; $y = 500; $final_img = imagecreatetruecolor($x, $y); $images = array('1.png', '2.png', '3.png'); foreach ($images as $image) { $image_layer = imagecreatefrompng($image); imagecopy($final_img, $image_layer, 0, 0, 0, 0, $x

问题 I am building a product configuration module which requires that multiple transparent PNGs of the same size (which represent product parts) be flattened onto one image. At first I tried this which made the composition of the 3 images but on a black background: <?php $x = 500; $y = 500; $final_img = imagecreatetruecolor($x, $y); $images = array('1.png', '2.png', '3.png'); foreach ($images as $image) { $image_layer = imagecreatefrompng($image); imagecopy($final_img, $image_layer, 0, 0, 0, 0, $x

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 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 Is it possible to create such a UIView fill with color, but in the middle is transparent? I'm thinking about to create 5 UIView s here. Just wondering is it possible to accomplish by using only ONE UIView 回答1: From Duncan C, I get to know where should I start, then I found CALayer with transparent hole in it. UIBezierPath *overlayPath = [UIBezierPath bezierPathWithRect:self.view.bounds]; UIBezierPath *transparentPath = [UIBezierPath bezierPathWithRect:CGRectMake(60, 120, 200, 200)];

问题 I would like to make my Flutter app take up the entire screen in Android while still showing both the status bar and the navigation bar, with both of them transparent, to achieve the full screen look like in iOS. The status bar color can be easily changed, but right now I'm facing problems with getting the app to fill up the screen and making the navigation bar transparent at the same time. By default, the app is not drawn below the navigation bar at all (I've set the status bar color to be