image - AlamofireImage GrayImageEffect -

-

i make request image view url whit alamofireimage. revice image want convert image in grayscale. write simple class transform image in gray scale how transform image form alamofire gray scale. try method don´t work

            cell.imagem.af_setimagewithurlrequest(self.imagerequest(artwork.thumbnail), placeholderimage: nil, filter: nil, imagetransition: uiimageview.imagetransition.none, completion: { (_, _, imageresult) -> void in             if imageresult.issuccess {                 cell.imagem.image = nil                 cell.imagem.image = imageresult.value?.grayscaleimage()             }         })

and class transform image gray scale is:

func grayscaleimage() -> uiimage {     let imagerect = cgrectmake(0, 0, self.size.width, self.size.height);     let colorspace = cgcolorspacecreatedevicegray();      let width = int(self.size.width)     let height = int(self.size.height)     let context = cgbitmapcontextcreate(nil, width, height, 8, 0, colorspace, .allzeros);     cgcontextdrawimage(context, imagerect, self.cgimage!);      let imageref = cgbitmapcontextcreateimage(context);     let newimage = uiimage(cgimage: imageref!)     return newimage }}


Comments

Post a Comment

Popular posts from this blog

javascript - Chart.js (Radar Chart) different scaleLineColor for each scaleLine -

-
Image
i try , create radar chart using chart.js has various colours each scaleline, or coloured between scalelines. wondering if possible? from: to: i have working graph, though there doesn't seem method change individual scale lines. kind regards leigh you can extend radar chart type this, so chart.types.radar.extend({ name: "radaralt", initialize: function (data) { chart.types.radar.prototype.initialize.apply(this, arguments); var originalscaledraw = this.scale.draw; var ctx = this.chart.ctx; this.scale.draw = function () { var linewidth = this.linewidth; // bypasses line drawing in originalscaledraw this.linewidth = linewidth; originalscaledraw.apply(this, arguments); ctx.linewidth = this.linewidth; var scale = this; // draw chart.helpers.each(scale.ylabels, function (label, index) { // color of ...
Read more

jquery - ReferenceError: CKEDITOR is not defined -

-
may repeated question, solutions provided on net including stackoverflow q-a not resolved issue. ckeditor (4.5.3) integrated in mvc application. ckeditor using on textarea in partial view. same partial view used in create , edit post form. both form having same .chtml page. partial view : <textarea id="description" name="description" class="form-control" >@html.raw(model.description)</textarea> having script: <script type="text/javascript"> ckeditor.replace('description', { filebrowserimageuploadurl: '@url.action("uploadeditorimage", "administrator")', htmlencodeoutput: true }); </script> in .chtml page added : <script src="~/ckeditor/ckeditor.js"></script> generating proper js examined in response. config.js : ckeditor.editorconfig = function( config ) { config.image_previewtext = ckeditor.tools.repeat(' ...
Read more

android - Go back to previous fragment -

-
btw second fragment. appear once press button in first fragment. in fragment, if press button on phone, go previous fragment. need guys. in advance. public class listalldoctorfragment extends fragment { button close; @nullable @override public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) { view view = inflater.inflate(r.layout.listalldoctor, container,false); close = (button) view.findviewbyid(r.id.button); close.setonclicklistener(new view.onclicklistener() { @override public void onclick(view view) { android.app.fragmentmanager fm = getfragmentmanager(); fragmenttransaction ft = fm.begintransaction(); shit f2 = new shit(); ft.add(r.id.content_frame, f2); ft.addtobackstack(null); ft.commit(); } }); return view; } } assuming want g...
Read more