Storage and reading and deletion of IOS pictures

Store a picture locally

Nsarray *dirarray = nssearchpathfordirectoriesindomains (nscachesdirectory, Nsuserdomainmask, YES);             *path = [Dirarray firstobject];             = [path stringbyappendingpathcomponent:[nsstring stringwithformat:@ "idcard%zd", _ Selectindex]];             1.0 );            [ImageData Writetofile:path Atomically:yes];

Read after the picture has been saved to the local

Nsarray *dirarray = nssearchpathfordirectoriesindomains (nscachesdirectory, Nsuserdomainmask, YES);         *path = [Dirarray firstobject];         = [path stringbyappendingpathcomponent:[nsstring stringwithformat:@ "idcard%zd", I]] ;         if ([[[Nsfilemanager Defaultmanager] Fileexistsatpath:path])            {*picdata = [NSData Datawithcontentsoffile:path];             = [UIImage imagewithdata:picdata];             }

Delete a picture that is stored locally

Nsarray *dirarray = nssearchpathfordirectoriesindomains (nscachesdirectory, Nsuserdomainmask, YES);         *path = [Dirarray firstobject];         = [path stringbyappendingpathcomponent:[nsstring stringwithformat:@ "idcard%zd", I]] ;         if ([[[Nsfilemanager Defaultmanager] Fileexistsatpath:path]) // If there is a configuration file for the temporary file         {[            [Nsfilemanager Defaultmanager]  removeitematpath:path error:nil];        }

Storage and reading and deletion of IOS pictures