c# - How Do I Add/Remove a UIBarButtonItem to/from a UIToolbar After Items Have Already Been Added? -


i working in xamarin.ios , have uitoolbar needs able add , remove buttons programmatically @ run-time.

i have tried several different approaches using: _buttons uibarbuttonitem[]

setitems(_buttons, false)

and toolbar never seems update.

i initialize toolbar when app starts main 3 buttons. when things happen, need able remove buttons toolbar add new items toolbar.

i have tried calling:

setneedsdisplay()

after calling:

setitems(_buttons, false)

and doesn't update toolbar items either.

any suggestions?

and reason not changing because layoutsubviews called time , overrides setitems. use constructor populate toolbar first time

public partial class customuitoolbar : uitoolbar {     public customuitoolbar (intptr handle) : base (handle)     {         var _uibarbuttonitemarrayone = new uibarbuttonitem[3];         (int = 0; < 3; i++)         {             var _item = new uibarbuttonitem(i.tostring(), uibarbuttonitemstyle.done, null);             _item.tintcolor = uicolor.red;             _uibarbuttonitemarrayone[i] = _item;         }         //var __uibarbuttonitemarraytwo = new uibarbuttonitem[2];         //for (int = 0; < 2; i++)         //{         //    var _item = new uibarbuttonitem(i.tostring(), uibarbuttonitemstyle.done, null);         //    _item.tintcolor = uicolor.blue;         //    __uibarbuttonitemarraytwo[i] = _item;         //}         setitems(_uibarbuttonitemarrayone, true);     }      public override void layoutsubviews()     {         base.layoutsubviews();        } }

Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more