# App Share Not Working in Demo Code **URL:** \ **Category:** iOS\ **Created:** [July 17, 2018, 4:44pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444 "2018-07-17T16:44:13Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Greg\_Cerveny](https://avatars.discourse-cdn.com/v4/letter/g/5f8ce5/32.png) [@Greg\_Cerveny](https://devforum.zoom.us/u/Greg_Cerveny)\ **Post date:** [July 17, 2018, 4:44pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/1 "2018-07-17T16:44:13Z")
I pulled the latest from MobileRTCSample from GitHub, but when I attempt to start an App Share meeting, I get the err return `onMeetNow ret:150` which is `MobileRTCMeetError_InvalidArguments` I’m logged in via the settings menu.  The params seem to be correct and inline with what the documentation states for `startMeetingWithDictionary`: ```auto Printing description of paramDict: {     "kMeetingParam\_IsAppShare" = 1;     "kMeetingParam\_UserType" = 100; } ```   ---
**Author:** ![Chao\_Bai](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chao_bai/32/60_2.png) [@Chao\_Bai](https://devforum.zoom.us/u/Chao_Bai)\ **Post date:** [July 18, 2018, 1:12am UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/2 "2018-07-18T01:12:06Z")
hi greg: if you had already logged in. You do not need to pass userid & usertype & usertoken. Otherwise, you would got error MobileRTCMeetError\_InvalidArguments. ---
**Author:** ![Greg\_Cerveny](https://avatars.discourse-cdn.com/v4/letter/g/5f8ce5/32.png) [@Greg\_Cerveny](https://devforum.zoom.us/u/Greg_Cerveny)\ **Post date:** [July 18, 2018, 7:03pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/3 "2018-07-18T19:03:27Z")
Using the demo app, with no changes made, and fresh install on device… 1. Settings \> Sign in 2. Tap Meet Now \> App Share Meeting I get the result: onMeetNow ret:150 1. Settings \> Sign out 2. Tap Meet Now \> App Share Meeting I get the same result: onMeetNow ret:150 Modifying the code as suggested: `MobileRTCMeetError ret = [ms startMeetingWithDictionary:@{}];` code is placed here: [https://github.com/zoom/zoom-sdk-ios/blob/master/MobileRTCSample/MobileRTCSample/MainViewController.m#L400](https://github.com/zoom/zoom-sdk-ios/blob/master/MobileRTCSample/MobileRTCSample/MainViewController.m#L400) 1. Settings \> Sign in 2. Tap Meet Now \> App Share Meeting I get the same result: onMeetNow ret:150     Does the functionality for ‘App Share Meeting’ in the demo code actually work?   ---
**Author:** ![Chao\_Bai](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chao_bai/32/60_2.png) [@Chao\_Bai](https://devforum.zoom.us/u/Chao_Bai)\ **Post date:** [July 19, 2018, 1:11am UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/4 "2018-07-19T01:11:49Z")
app share meeting works indeed. onMeetRet: 150, it means that you pass the incorrect param while startmeeting. 1. If you had already login, start meeting as following. | paramDict = @{kMeetingParam\_UserType:@(userType), | |   | kMeetingParam\_IsAppShare:@(appShare), | |   | //kMeetingParam\_ParticipantID:kParticipantID, | |   | //kMeetingParam\_NoAudio:@(YES), | |   | //kMeetingParam\_NoVideo:@(YES), | |  2. If you do not logged in. | if (MobileRTCUserType\_APIUser == userType) | |   | { | |   | paramDict = @{kMeetingParam\_UserID:kSDKUserID, | |   | kMeetingParam\_UserToken:kSDKUserToken, | |   | kMeetingParam\_UserType:@(userType), | |   | kMeetingParam\_Username:kSDKUserName, | |   | kMeetingParam\_MeetingNumber:kSDKMeetNumber, | |   | kMeetingParam\_IsAppShare:@(appShare), | |   | //kMeetingParam\_ParticipantID:kParticipantID, | |   | //kMeetingParam\_NoAudio:@(YES), | |   | //kMeetingParam\_NoVideo:@(YES), | |   | }; | |       make sure pass the correct userid, usertoken, usertype, meetingnumber. | }   | | };     | ---
**Author:** ![Greg\_Cerveny](https://avatars.discourse-cdn.com/v4/letter/g/5f8ce5/32.png) [@Greg\_Cerveny](https://devforum.zoom.us/u/Greg_Cerveny)\ **Post date:** [July 19, 2018, 8:56pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/5 "2018-07-19T20:56:12Z")
I haven’t modified the code of the demo app aside from the SDK key.  Referring back to my original message, that’s how it’s being called. ---
**Author:** ![Chao\_Bai](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/chao_bai/32/60_2.png) [@Chao\_Bai](https://devforum.zoom.us/u/Chao_Bai)\ **Post date:** [July 20, 2018, 1:24am UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/6 "2018-07-20T01:24:46Z")
hi greg: have you set domain before you start meeting? ---
**Author:** ![Greg\_Cerveny](https://avatars.discourse-cdn.com/v4/letter/g/5f8ce5/32.png) [@Greg\_Cerveny](https://devforum.zoom.us/u/Greg_Cerveny)\ **Post date:** [July 23, 2018, 8:15pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/7 "2018-07-23T20:15:44Z")
Ok, that seems to get the meeting started. I updated this line: #define kSDKDomain      @“[zoom.us](http://zoom.us)” After seeing that domain mentioned inline here: [https://developer.zoom.us/docs/ios/sdk-functions-and-usage/](https://developer.zoom.us/docs/ios/sdk-functions-and-usage/) Seems like perhaps it would be helpful to just have that set as the default. At this point, I’m able to start an app share meeting and I can see the video from the camera in a browser. However, I’m not sure how to minimize the meeting UI and see the app sharing? This is from the above guide: \> The stack supports to start a meeting with sharing content in App(App Share), and at the same time the meeting UI can be hidden in the background while app sharing. ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [September 20, 2021, 8:40pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/8 "2021-09-20T20:40:21Z")
Closing as solved. -Tommy ---
**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\ **Post date:** [September 20, 2021, 8:40pm UTC](https://devforum.zoom.us/t/app-share-not-working-in-demo-code/1444/9 "2021-09-20T20:40:23Z")