有没有办法获得文件的快速预览图像?
我在找这样的东西:
NSImage *image = [QuickLookPreviewer quickLookPreviewForFile:path];
发布于 2012-02-16 16:49:18
请参阅文档中的QLThumbnailRequest:https://developer.apple.com/library/mac/#documentation/UserExperience/Reference/QLThumbnailRequest_Ref/Reference/reference.html
NSURL *path = aFileUrl;
NSDictionary *options = [NSDictionary dictionaryWithObject:[NSNumber numberWithBool:NO] forKey:(NSString *)kQLThumbnailOptionIconModeKey];
CGImageRef ref = QLThumbnailImageCreate(kCFAllocatorDefault, (CFURLRef)path, CGSizeMake(600, 800 /* Or whatever size you want */), (CFDictionaryRef)options);发布于 2018-10-21 20:14:49
在Swift中,我最终得到了类似这样的结果(应该替换强制展开):
let options = [
kQLThumbnailOptionIconModeKey: false
]
let ref = QLThumbnailCreate(
kCFAllocatorDefault,
url as NSURL,
CGSize(width: 150, height: 150),
options as CFDictionary
)
let thumbnail = ref!.takeRetainedValue()
let cgImageRef = QLThumbnailCopyImage(thumbnail)
let cgImage = cgImageRef!.takeRetainedValue()
let image = NSImage(cgImage: cgImage, size: CGSize(width: cgImage.width, height: cgImage.height))https://stackoverflow.com/questions/8815458
复制相似问题