How to invite some friends using VK SDK in Xamarin.Android -


guys. i'm trying use vk api sdk in xamarin.android. create request:

var token = vkhelper.getvkusertoken(app.data.setting.list); var iparams = new dictionary<string, java.lang.object>(); iparams.add(vkapiconst.userid, vkbuffer.friend.id); iparams.add("type", "invite"); iparams.add("access_token", token); v = new vkrequest("apps.sendrequest", new vkparameters(iparams));

by clicking in button call executewithlistener:

v.executewithlistener(new reqvlist(new action(o => { runonuithread(() => { if (o.iscomplete) { try { showcustomalert(resource.drawable.checkmark, getstring(resource.string.sentinvite), android.graphics.color.argb(100, 0, 0, 200)); } catch { } } else { try { showcustomalert(resource.drawable.ic_post, getstring(resource.string.notsentinvite) + "\n" + getstring(o.messageid), android.graphics.color.argb(100, 200, 0, 0)); } catch { } } }); })));

listener:

 public class reqvlist : vkrequest.vkrequestlistener     {         action<callbackvkresponse> complete;         callbackvkresponse callbackvkresponse = new callbackvkresponse         {             iscomplete = false,             messageid = 0         };          public reqvlist(action<callbackvkresponse> complete)         {             this.complete = complete;         }          public override void oncomplete(vkresponse p0)         {             base.oncomplete(p0);             var response = p0.json.tostring();             callbackvkresponse.iscomplete = true;             complete(callbackvkresponse);         }          public override void onerror(vkerror p0)         {             int errorcode = p0.apierror != null ? p0.apierror.errorcode : 0;             callbackvkresponse.iscomplete = false;              if (errorcode == 15)                 callbackvkresponse.messageid = resource.string.vkinviteerror;              complete(callbackvkresponse);             base.onerror(p0);         }     }

summary: if press invite friend, see "vkontakte" dialog window suggest message (here can accept or skip). if press "invite" friend has disabled invite him (or her) works fine. is:

....

else { try { showcustomalert(resource.drawable.ic_post, getstring(resource.string.notsentinvite) + "\n" + getstring(o.messageid), android.graphics.color.argb(100, 200, 0, 0)); } catch { } }

....

but if user has enabled invite him (or her) listener won't work , app freeze. in phone can press button , app unfreez , after can press again button - invite has worked fine. listener oncomplete works second time. is:

...

if (o.iscomplete) { try { showcustomalert(resource.drawable.checkmark, getstring(resource.string.sentinvite), android.graphics.color.argb(100, 0, 0, 200)); } catch { } }

...

help please.


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