iphone - Click a imageview popup a view showing the original image -


i have loaded several images table view. image has been resized, , want when user tap on imageview, pops view showing original image size, , when user click again anywhere, view disappears , tableview. code loads image this:

- (uitableviewcell *)tableview:(uitableview *)atableview cellforrowatindexpath:(nsindexpath *)indexpath {     static nsstring *cellidentifier = @"cell";     searchcell *cell = (searchcell *)[atableview dequeuereusablecellwithidentifier:cellidentifier];     if (!cell) {         cell = [[[nsbundle mainbundle] loadnibnamed:@"searchcell" owner:self options:nil] objectatindex:0];     }      cell.selectionstyle = uitableviewcellselectionstylenone;      cell.name.text = [[self.brands objectatindex:indexpath.row] objectforkey:@"name"];      __weak searchcell *weakcell = cell;      [cell.leftimageview setimagewithurlrequest:[nsurlrequest requestwithurl:[nsurl urlwithstring:[nsstring stringwithformat:@"http://s-57130.gotocdn.com/%@", [[self.brands objectatindex:indexpath.row] objectforkey:@"pic"]]]] placeholderimage:[uiimage imagenamed:@"app_icon.png"] success:^(nsurlrequest *request, nshttpurlresponse *response, uiimage *image) {          cgfloat imageheight = image.size.height;         cgfloat imagewidth = image.size.width;          cgsize targetsize = cgsizemake(70, 70);         cgsize newsize = targetsize;         cgfloat scalefactor = targetsize.width / imagewidth;         newsize.height = imageheight * scalefactor;          uigraphicsbeginimagecontextwithoptions(newsize, no, 0.0);         [image drawinrect:cgrectmake(0, 0, newsize.width, newsize.height)];         uiimage *small = uigraphicsgetimagefromcurrentimagecontext();         uigraphicsendimagecontext();          weakcell.imageview.image = small;      } failure:^(nsurlrequest *request, nshttpurlresponse *response, nserror *error) {      }];     return cell; }

no need resize image manually. if set imageview contentmode property uiviewcontentmodescaleaspectfill, automatically scale fit size of image view.

as scaling on tap, check out uiimageviewmodescaleaspect.


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