ios - Delegate not being set correctly -

im working on project , uiwebview class needs execute method downloadview class

i using open source project https://github.com/robertmryan/download-manager

when code executes method:

 downloadtableview *download = [[downloadtableview alloc] init];  [download queueandstartdownloads:_downloadurl]; 

this line doesnt set delegate right

  self.downloadmanager = [[downloadmanager alloc] initwithdelegate:self]; 

the whole start download method

- (void)queueandstartdownloads:(nsurl *)url {   nsstring *documentspath = nssearchpathfordirectoriesindomains(nsdocumentdirectory, nsuserdomainmask, yes)[0]; nsstring *downloadfolder = [documentspath stringbyappendingpathcomponent:@"downloads"];  if ([[nsfilemanager defaultmanager] fileexistsatpath:downloadfolder])       //does file exist? {     if (![[nsfilemanager defaultmanager] createdirectoryatpath:downloadfolder                                    withintermediatedirectories:no                                                     attributes:nil                                                          error:nil]) {      } }  self.downloadmanager = [[downloadmanager alloc] initwithdelegate:self]; self.downloadmanager.maxconcurrentdownloads = 4;       nsstring *downloadfilename = [downloadfolder stringbyappendingpathcomponent:[url lastpathcomponent]];     [self.downloadmanager adddownloadwithfilename:downloadfilename url:url];   self.cancelbutton.enabled = yes; self.startdate = [nsdate date]; nslog(@"downling"); [self.downloadmanager start];  } 

the methods in downloadview class wont execute

 - (void)didfinishloadingallformanager:(downloadmanager *)downloadmanager 

{

assuming code under arc, code understand thatdownloadtableview *download local variable. hence downloadtableview object gets released after scope of method declared ends. hence delegate method doesn't called, because delegate released. avoid this, can create downloadtableview object instance variable.