//
//?Created?by?Fabrice?Aneche?on?06/01/14.
//?Copyright?（c）?2014?Dailymotion.?All?rights?reserved.
//

#import?“NSData+ImageContentType.h“


@implementation?NSData?（ImageContentType）

+?（NSString?*）sd_contentTypeForImageData:（NSData?*）data?{
????uint8_t?c;
????[data?getBytes:&c?length:1];
????switch?（c）?{
????????case?0xFF:
????????????return?@“image/jpeg“;
????????case?0x89:
????????????return?@“image/png“;
????????case?0x47:
????????????return?@“image/gif“;
????????case?0x49:
????????case?0x4D:
????????????return?@“image/tiff“;
????????case?0x52:
????????????//?R?as?RIFF?for?WEBP
????????????if?（[data?length]?????????????????return?nil;
????????????}

????????????NSString?*testString?=?[[NSString?alloc]?initWithData:[data?subdataWithRange:NSMakeRange（0?12）]?encoding:NSASCIIStringEncoding];
????????????if?（[testString?hasPrefix:@“RIFF“]?&&?[testString?hasSuffix:@“WEBP“]）?{
????????????????return?@“image/webp“;
????????????}

????????????return?nil;
????}
????return?nil;
}

@end


@implementation?NSData?（ImageContentTypeDeprecated）

+?（NSString?*）contentTypeForImageData:（NSData?*）data?{
????return?[self?sd_contentTypeForImageData:data];
}

@end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件?????????343??2016-11-20?00:31??關(guān)于代碼.txt
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\
?????文件??????101887??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\project.pbxproj
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\project.xcworkspace\
?????文件?????????157??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\project.xcworkspace\contents.xcworkspacedata
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\project.xcworkspace\xcuserdata\
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\project.xcworkspace\xcuserdata\jiachenmu.xcuserdatad\
?????文件???????40854??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\project.xcworkspace\xcuserdata\jiachenmu.xcuserdatad\UserInterfaceState.xcuserstate
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\jiachenmu.xcuserdatad\
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\jiachenmu.xcuserdatad\xcdebugger\
?????文件??????????91??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\jiachenmu.xcuserdatad\xcdebugger\Breakpoints_v2.xcbkptlist
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\jiachenmu.xcuserdatad\xcschemes\
?????文件????????4257??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\jiachenmu.xcuserdatad\xcschemes\BeautifulDay.xcscheme
?????文件?????????664??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcodeproj\xcuserdata\jiachenmu.xcuserdatad\xcschemes\xcschememanagement.plist
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\
?????文件?????????230??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\contents.xcworkspacedata
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\xcuserdata\
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\xcuserdata\jiachenmu.xcuserdatad\
?????文件??????243456??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\xcuserdata\jiachenmu.xcuserdatad\UserInterfaceState.xcuserstate
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\xcuserdata\jiachenmu.xcuserdatad\xcdebugger\
?????文件????????2135??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay.xcworkspace\xcuserdata\jiachenmu.xcuserdatad\xcdebugger\Breakpoints_v2.xcbkptlist
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\
?????文件???????21353??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\1872
?????文件???????19022??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\1898
?????文件????????8907??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\AppDelegate.swift
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\Assets.xcassets\
?????目錄???????????0??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\Assets.xcassets\AppIcon.appiconset\
?????文件????????1163??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\Assets.xcassets\AppIcon.appiconset\Contents.json
?????文件??????????62??2016-07-25?03:12??Swift-BanTang-master\BeautifulDay\Assets.xcassets\Contents.json
............此處省略799個文件信息