# Can't start custom UI activity

**URL:** <https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510>\
**Category:** Android\
**Created:** [July 8, 2020, 4:46am UTC](https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510 "2020-07-08T04:46:55Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![hoanghuynh296](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hoanghuynh296/32/11588_2.png) [@hoanghuynh296](https://devforum.zoom.us/u/hoanghuynh296)\
**Post date:** [July 8, 2020, 4:46am UTC](https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510/1 "2020-07-08T04:46:55Z")

</div>

**Description**  
Hi, I’ve read document about customize meeting UI. Here’s what I’ve done:

1. create VideoCall activity extends MeetingActivity
2. Create config file with zm\_config\_conf\_activity:  
vn.semicolon.demozoom.VideoCall  
Issue: join meeting ok, I see video of joiner and voice in host device, but nothing happen on client device. VideoCall not start.  
Question:
3. What should I do?
4. I see in some topic that custom UI is paid feature, isn’t it?

**Which version?**  
v4.6.21666.0429

Many thanks for your support!

---

<div class="post-metadata">

**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\
**Post date:** [July 8, 2020, 7:11am UTC](https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510/2 "2020-07-08T07:11:56Z")

</div>

Hi @hoanghuynh296,

Thanks for using Zoom SDK. The way you are mentioning is still Zoom default UI, but it is embedding a Zoom default UI into your own activity. The real Custom UI allows you to have full control of the meeting UI. It is now available for everyone to use. You may enable the “Custom UI” option in the Android SDK demo app and experience this feature([https://github.com/zoom/zoom-sdk-android](https://github.com/zoom/zoom-sdk-android)).

Thanks!

---

<div class="post-metadata">

**Author:** ![hoanghuynh296](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/hoanghuynh296/32/11588_2.png) [@hoanghuynh296](https://devforum.zoom.us/u/hoanghuynh296)\
**Post date:** [July 8, 2020, 7:56am UTC](https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510/3 "2020-07-08T07:56:38Z")

</div>

Thanks for your reply. Could you please give me document about customize UI? How to start, bind UI,… Or I have to find it in demo project?

---

<div class="post-metadata">

**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\
**Post date:** [July 11, 2020, 1:16am UTC](https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510/4 "2020-07-11T01:16:05Z")

</div>

Hi @hoanghuynh296,

You may find the doc for Custom UI here: [https://marketplace.zoom.us/docs/sdk/native-sdks/android/mastering-zoom-sdk/in-meeting-function/customized-meeting-ui/overview;](https://marketplace.zoom.us/docs/sdk/native-sdks/android/mastering-zoom-sdk/in-meeting-function/customized-meeting-ui/overview;) If you found any info missing, please let me know and I will forward them to the doc team to improve the doc.

Thanks!

---

<div class="post-metadata">

**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 10:39pm UTC](https://devforum.zoom.us/t/cant-start-custom-ui-activity/23510/5 "2020-08-21T22:39:52Z")

</div>