IOS Nsfilemaneger calculates whether a file timed out, and calculates the total size of a file under a folder

<span id="Label3"></p><p><p><span style="font-size: 16px;">Gets the specified file distance from the last modified time to the specified value (in seconds) timeout</span></p></p><p><p><span style="font-size: 16px;">+ (BOOL) istimeout: (nsstring *) path time: (nstimeinterval) timeout</span></p></p><p><p><span style="font-size: 16px;">{</span></p></p><p><p><span style="font-size: 16px;">Get current time</span></p></p><p><p><span style="font-size: 16px;">Nstimeinterval now = [[nsdate date] timeIntervalSince1970];</span></p></p><p><p><span style="font-size: 16px;"></span></p></p><p><p><span style="font-size: 16px;">Nsdictionary *dict = [[nsfilemanager defaultmanager] attributesofitematpath:path error:nil];</span></p></p><p><p><span style="font-size: 16px;">The time that the file was last modified was obtained</span></p></p><p><p><span style="font-size: 16px;">NSDate *d = [dict objectforkey:nsfilemodificationdate];</span></p></p><p><p><span style="font-size: 16px;">If (now-[d Timeintervalsince1970]>timeout) {</span></p></p><p><p><span style="font-size: 16px;">Return YES;</span></p></p><p><p><span style="font-size: 16px;">}</span></p></p><p><p><span style="font-size: 16px;">Return NO;</span></p></p><p><p><span style="font-size: 16px;">}</span></p></p><p><p><span style="font-size: 16px;">Calculate the total size of a file under a folder</span></p></p><p><p><span style="font-size: 16px;">+ (float) filesizefordir: (nsstring*) path</span></p></p><p><p><span style="font-size: 16px;">{</span></p></p><p><p><span style="font-size: 16px;">Nsfilemanager *filemanager = [nsfilemanager defaultmanager];</span></p></p><p><p><span style="font-size: 16px;"></span></p></p><p><p><span style="font-size: 16px;">Record value</span></p></p><p><p><span style="font-size: 16px;">unsigned long long totalsize = 0;</span></p></p><p><p><span style="font-size: 16px;">Get all the contents (files and Folders) of the path specified</span></p></p><p><p><span style="font-size: 16px;">nsarray* array = [filemanager Contentsofdirectoryatpath:path error:nil];</span></p></p><p><p><span style="font-size: 16px;">for (int i = 0; i<[array count]; i++)</span></p></p><p><p><span style="font-size: 16px;">{</span></p></p><p><p><span style="font-size: 16px;">Stitching full path</span></p></p><p><p><span style="font-size: 16px;">NSString *fullpath = [path Stringbyappendingpathcomponent:[array objectatindex:i];</span></p></p><p><p><span style="font-size: 16px;">BOOL isdir;</span></p></p><p><p><span style="font-size: 16px;"></span></p></p><p><p><span style="font-size: 16px;">If the specified path exists and is not a folder</span></p></p><p><p><span style="font-size: 16px;">NSLog (@ "fullpath:%@", fullPath);</span></p></p><p><p><span style="font-size: 16px;">Determine if it exists, and then decide whether it is a folder or a file</span></p></p><p><p><span style="font-size: 16px;">If ([filemanager fileexistsatpath:fullpath isdirectory:&isdir] &&!isdir)</span></p></p><p><p><span style="font-size: 16px;">{</span></p></p><p><p><span style="font-size: 16px;">Get file attributes</span></p></p><p><p><span style="font-size: 16px;">Nsdictionary *fileattributedic=[filemanager Attributesofitematpath:fullpath error:nil];</span></p></p><p><p><span style="font-size: 16px;">Totalsize+=[[fileattributedic objectforkey:nsfilesize] unsignedlonglongvalue];</span></p></p><p><p><span style="font-size: 16px;">}</span></p></p><p><p><span style="font-size: 16px;">Else</span></p></p><p><p><span style="font-size: 16px;">{</span></p></p><p><p><span style="font-size: 16px;">If it is a folder, recursion</span></p></p><p><p><span style="font-size: 16px;">Totalsize+=[self filesizefordir:fullpath];</span></p></p><p><p><span style="font-size: 16px;">}</span></p></p><p><p><span style="font-size: 16px;">}</span></p></p><p><p><span style="font-size: 16px;">Return totalsize;</span></p></p><p><p><span style="font-size: 16px;">}</span></p></p><p><p><span></span><br></p></p><p><p><br></p></p><p><p>IOS Nsfilemaneger calculates whether a file timed out, and calculates the total size of a file under a folder</p></p></span>