如何将 CFDataRef 转换为 NSData? [英] How to convert CFDataRef into NSData?
本文介绍了如何将 CFDataRef 转换为 NSData?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有 CFDataRef，我想把它转换成 NSData.
I have CFDataRef and I want to convert it into NSData.
CGDataProviderRef dataProvider = CGImageGetDataProvider(screenShot);
CFDataRef data = CGDataProviderCopyData(dataProvider);
CGDataProviderRelease(dataProvider);
NSString *imagePathLocation = [destinationPath stringByAppendingString:[@"/" stringByAppendingString:DesktopImage]];
[[NSFileManager defaultManager]createFileAtPath: imagePathLocation contents:nil attributes:nil];
fileHandleForImage = [NSFileHandle fileHandleForWritingAtPath:imagePathLocation];
NSData * data1 = (NSData *)data;
[fileHandleForImage writeData:data1];
当我输入 (NSData * data1 = (NSData *)data) 时，它的图像被破坏了.
When I typecast (NSData * data1 = (NSData *)data) it image gets corrupted.
有人可以帮忙吗?
推荐答案
它是免费桥接的，所以你只需要投射它.
It's toll-free bridged, so you just have to cast it.
NSData *myData = (__bridge NSData *)myCFDataRef;
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