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SwiftUI图片处理(缩放、拼图)
{ // 从view、data、CGImage获取BitmapImageRep // NSBitmapImageRep *bitmap = [NSBitmapImageRep imageRepWithData:data]; // NSBitmapImageRep *bitmap = [[[NSBitmapImageRep alloc] initWithCGImage :CGImage]; guard let bitmap: NSBitmapImageRep = cview.bitmapImageRepForCachingDisplay(in: cview.visibleRect { guard let imageData = image.tiffRepresentation, let imageRep = NSBitmapImageRep = NSBitmapImageRep(data: imgData as Data)!
4.8K20发布于 2021-12-01 - 来自专栏正则
AFNetworking源码探究（十二） —— 数据解析之子类中协议方法的实现
self.imageScale); } #else // Ensure that the image is set to it's correct pixel width and height NSBitmapImageRep *bitimage = [[NSBitmapImageRep alloc] initWithData:data]; NSImage *image = [[NSImage alloc] initWithSize
74730发布于 2021-09-03 - 来自专栏macOS 开发学习
Mac开发跬步积累(一):Cocoa Drawing 之 NSImage imageNamed: 到底做了什么?
Data(contentsOf: imgUrl) guard let data = imgData else {return} let imgRep = NSBitmapImageRep(data: data ) // 创建NSBitmapImageRep实例对象 img = NSImage(size: size) // 创建NSImage 实例对象 img.addRepresentation
1.7K30发布于 2018-08-23 - 来自专栏陈满iOS
iOS复习中有关SDWebImage可能知识点总结（2）
SDImageFormatPNG) { imageFileType = NSPNGFileType; } imageData = [NSBitmapImageRep
1K10发布于 2018-09-10 - 来自专栏哈雷彗星撞地球
SDWebImageV3.7.5源码解析
data = UIImageJPEGRepresentation(image, (CGFloat)1.0); } #else data = [NSBitmapImageRep
1.1K30发布于 2018-08-22 - 来自专栏云原生布道专栏
【IOS开发进阶系列】动画专题
NSArray *representations = [image representations]; if([representations count]){ NSBitmapImageRep CGImageCreateWithImageInRect(imageRef, tileRect); //convert to jpeg data NSBitmapImageRep *imageRep = [[NSBitmapImageRep alloc] initWithCGImage: tileImage]; NSData *data = [imageRep
1.4K10编辑于 2023-10-16
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