> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-013b37f0.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Video View Customisation

This section will guide you to customise the main video container.

## Implementation

Once you have decided to implement [Default Calling](/sdk/react-native/3.0/v3-default-calling) or [Direct Calling](/sdk/react-native/3.0/v3-direct-calling) calling and followed the steps to implement them. Just few additional methods will help you quickly customize the main video container.

Please make sure your callSettings is configured accordingly for [Default Calling](/sdk/react-native/3.0/v3-default-calling) or [Direct Calling](/sdk/react-native/3.0/v3-direct-calling).

## Main Video Container Setting

The `MainVideoContainerSetting` Class is the required in case you want to customise the main video view. You need to pass the Object of the `MainVideoContainerSetting` Class in the `setMainVideoContainerSetting()` method of the `CallSettingsBuilder`.

| Setting                                                                              | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| ------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `setMainVideoAspectRatio(aspectRatio: string)`                                       | This method is used to set the aspect ratio of main video. The default value is **contain.** Possible Values: <br />**1. CometChatCalls.CallSettings. ASPECT\_RATIO\_CONTAIN** <br />**2. CometChatCalls.CallSettings. ASPECT\_RATIO\_COVER**                                                                                                                                                                                                                                                                                                                                             |
| `setFullScreenButtonParams(position: string, visibility: boolean)`                   | This method is used to set the position & visibility parameter of the full screen button. By default the full screen button is visible in the **bottom-right** position. Possible Values for **POSITION:** <br />1. **CometChatCalls.CallSettings. POSITION\_TOP\_LEFT** <br />2. **CometChatCalls.CallSettings. POSITION\_TOP\_RIGHT** <br />3. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_LEFT** <br />4. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_RIGHT** <br /><br />Possible Values for **VISIBILITY:** <br />1. **true** <br />2. **false**                           |
| `setNameLabelParams(position: string, visibility: boolean, backgroundColor: string)` | This method is used to set the position, visibility & background color of the name label. By default the name label is visible in the **bottom-left** position with a background-color **#333333** Possible Values for **POSITION:** <br />1. **CometChatCalls.CallSettings. POSITION\_TOP\_LEFT** <br />2. **CometChatCalls.CallSettings. POSITION\_TOP\_RIGHT** <br />3. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_LEFT** <br />4. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_RIGHT** <br /><br />Possible Values for **VISIBILITY:** <br />1. **true** <br />2. **false** |
| `setZoomButtonParams(position: string, visibility: boolean)`                         | This method is used to set the position, visibility of the zoom button. By default the zoom button is visible in the **bottom-right** position. Possible Values for **POSITION:** <br />1. **CometChatCalls.CallSettings. POSITION\_TOP\_LEFT** <br />2. **CometChatCalls.CallSettings. POSITION\_TOP\_RIGHT** <br />3. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_LEFT** <br />4. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_RIGHT** <br /><br />Possible Values for **VISIBILITY:** <br />1. **true** <br />2. **false**                                                    |
| `setUserListButtonParams(position: string, visibility: boolean)`                     | This method is used to set the position, visibility of the user list button. By default the user list button is visible in the **bottom-right** position. Possible Values for **POSITION:** <br />1. **CometChatCalls.CallSettings. POSITION\_TOP\_LEFT** <br />2. **CometChatCalls.CallSettings. POSITION\_TOP\_RIGHT** <br />3. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_LEFT** <br />4. **CometChatCalls.CallSettings. POSITION\_BOTTOM\_RIGHT** <br /><br />Possible Values for **VISIBILITY:** <br />1. **true** <br />2. **false**                                          |

Example:

<Tabs>
  <Tab title="JavaScript">
    ```javascript theme={null}
    let videoSettings = new CometChat.MainVideoContainerSetting();

    videoSettings.setMainVideoAspectRatio(CometChatCalls.CallSettings.ASPECT_RATIO_CONTAIN);	videoSettings.setFullScreenButtonParams(CometChatCalls.CallSettings.POSITION_BOTTOM_RIGHT, true);
    videoSettings.setNameLabelParams(CometChatCalls.CallSettings.POSITION_BOTTOM_LEFT, true, "#333333");
    videoSettings.setZoomButtonParams(CometChatCalls.CallSettings.POSITION_BOTTOM_RIGHT, true);
    videoSettings.setUserListButtonParams(CometChatCalls.CallSettings.POSITION_BOTTOM_RIGHT, true);
    ```
  </Tab>
</Tabs>