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话不多说,直接撸代码
// // gzhcache.h // cache // // created by 郭志贺 on 2020/5/27. // copyright © 2020 郭志贺. all rights reserved. // #import <foundation/foundation.h> ns_assume_nonnull_begin @interface gzhcache : nsobject /// 计算缓存大小 +(float)filepath; /// 清理缓存 +(void)clearcache; @end ns_assume_nonnull_end
// // gzhcache.m // cache // // created by 郭志贺 on 2020/5/27. // copyright © 2020 郭志贺. all rights reserved. // #import "gzhcache.h" @implementation gzhcache // 显示缓存大小 + (float)filepath { nsstring * cachpath = [ nssearchpathfordirectoriesindomains ( nscachesdirectory , nsuserdomainmask , yes ) firstobject ]; return [ self foldersizeatpath :cachpath]; } //计算单个文件的大小 + (long long) filesizeatpath:( nsstring *) filepath{ nsfilemanager * manager = [ nsfilemanager defaultmanager ]; if ([manager fileexistsatpath :filepath]){ return [[manager attributesofitematpath :filepath error : nil ] filesize ]; } return 0 ; } //遍历文件夹获得文件夹大小,返回多少m + (float)foldersizeatpath:(nsstring *)folderpath{ nsfilemanager * manager = [ nsfilemanager defaultmanager ]; if (![manager fileexistsatpath :folderpath]) return 0 ; nsenumerator *childfilesenumerator = [[manager subpathsatpath :folderpath] objectenumerator ]; nsstring * filename; long long foldersize = 0 ; while ((filename = [childfilesenumerator nextobject ]) != nil ){ nsstring * fileabsolutepath = [folderpath stringbyappendingpathcomponent :filename]; foldersize += [ self filesizeatpath :fileabsolutepath]; } return foldersize/( 1024.0 * 1024.0 ); } //清理缓存 + (void)clearcache { nsstring * cachpath = [ nssearchpathfordirectoriesindomains ( nscachesdirectory , nsuserdomainmask , yes ) firstobject ]; nsarray * files = [[ nsfilemanager defaultmanager ] subpathsatpath :cachpath]; nslog ( @"cachpath = %@" , cachpath); for ( nsstring * p in files) { nserror * error = nil ; nsstring * path = [cachpath stringbyappendingpathcomponent :p]; if ([[ nsfilemanager defaultmanager ] fileexistsatpath :path]) { [[ nsfilemanager defaultmanager ] removeitematpath :path error :&error]; } } [ self performselectoronmainthread : @selector (clearcachsuccess) withobject : nil waituntildone : yes ]; } + (void)clearcachsuccess { nslog(@"清理成功"); } @end
需要查询大小的地方使用:
nsstring *str = [nsstring stringwithformat:@"%.2fm",[gzhcache filepath]];
清理的方法调用
[gzhcache clearcache];
以上内容仅代表本菜鸟看法,复制可直接使用。如有不妥之处敬请告知。
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