我从未经历过这个问题,我能够在3个月前使用相同的代码。在更新MacOS High Sierra之后,我无法使用ZXing库运行此代码。不确定它是否链接,但在这里我拥有的内容:
错误:
IIOImageWriteSession:113: cannot create: '/Users/****/Desktop/test.PNG.sb-8ff9679f-SRYKGg'
error = 1 (Operation not permitted)
代码:
NSError * error = nil;
ZXMultiFormatWriter * writer = [ZXMultiFormatWriter writer];
ZXBitMatrix* result = [writer encode:@"AM233X05987"
format:kBarcodeFormatDataMatrix
width:500
height:500
error:&error];
if (result) {
CGImageRef image = [[ZXImage imageWithMatrix:result] cgimage];
CFURLRef url = (__bridge CFURLRef)[NSURL fileURLWithPath:@"/Users/****/Desktop/test.PNG"];
CGImageDestinationRef destination = CGImageDestinationCreateWithURL(url, kUTTypePNG, 1, NULL);
if (!destination) {
NSLog(@"Failed to create CGImageDestination" );
return NO;
}
CGImageDestinationAddImage(destination, image, nil);
if (!CGImageDestinationFinalize(destination)) {
NSLog(@"Failed to write image to /Users/alex/Desktop/Barcodes/");
CFRelease(destination);
return NO;
}
CFRelease(destination);
} else {
NSString * errorMessage = [error localizedDescription];
NSLog(@"%@", errorMessage);
}
最终找到了问题的来源,事实证明这是因为应用程序是沙盒。关闭沙盒解决了问题。
要使用沙箱进行此操作,解决方案是放置一个保存面板,如果返回正常,则将文件保存到保存面板的URL。