iOS UI Kit

The iOS UI Kit enables you to integrate a complete, production-ready video call interface into your iPhone or iPad native app with just a few lines of Swift or Objective-C. The kit is 100% native, handles auto-orientation, and reduces development time by 99% compared to building from scratch with the raw iOS SDK. The framework ships as an .xcframework with dSYMs for easy debugging.

The kit ships with a rich set of controls available to all participants. Moderators get an additional set of room-management capabilities.

Participants and Moderators

• Mute/unmute audio and video
• Switch camera (front/rear)
• Switch audio device
• Group and private text chat
• File sharing with all participants or privately
• View and configure participant list
• Switch video layout (grid / list)
• Raise hand / request floor access (Lecture/Webinar mode)
• Annotation on shared screens
• Screen sharing (via ReplayKit broadcast extension)
• Canvas streaming
• Audio-only call mode
• Network bandwidth alerts that let the user switch between video and audio-only when bandwidth drops
• User movement alerts that let the user switch between video and audio-only when moving fast during a call
• Disconnect call

Moderators Only

• Record session
• Hard mute room audio
• Mute individual participant audio or video
• Drop participant from room
• Grant or deny floor access requests
• Switch participant role
• Start/stop RTMP live streaming

v2.2.3 introduces an improved UI for 1-to-1 audio-only calls. When a participant joins without video, the kit renders a purpose-built calling screen showing the remote participant's name and avatar over a gradient background, with overlay buttons for microphone toggle and exit. This replaces the generic video grid with an experience designed specifically for voice calls.

Enable the Audio View Overlay

Set isAudioViewMode to true on the EnxSetting shared instance to activate the audio call UI with overlay mic-toggle and exit controls:

EnxSetting.shared.isAudioViewMode = true

Customise the Audio View Appearance

Assign an EnxAudioViewConfig instance to audioViewConfig on the shared settings object to define the visual appearance of the calling screen. All colour parameters accept standard UIColor values:

EnxSetting.shared.audioViewConfig = EnxAudioViewConfig(
    gradientLayer1: UIColor(red: 0.04, green: 0.22, blue: 0.20, alpha: 1),   // top gradient colour
    gradientLayer2: UIColor(red: 0.01, green: 0.08, blue: 0.07, alpha: 1),   // bottom gradient colour
    nameTextColor: .white,                                                     // remote participant name
    sortNameTextColor: .white,                                                 // initials text colour
    sortNameBGColor: UIColor(red: 0.07, green: 0.55, blue: 0.44, alpha: 1)   // initials avatar background
)

v2.2.5 adds call-quality awareness. With the network bandwidth monitor or user movement tracking enabled, the UI Kit shows an alert when bandwidth drops or the user is moving fast. From the alert, the user can switch the call to audio-only, dropping video from every stream, and switch back to video later. Both monitors are started and stopped through EnxSetting.shared:

EnxSetting.shared.startNetworkUpdate()
EnxSetting.shared.startUserMovmentUpdate()

See Customization → Network and Movement Alerts for the full API.

Use the pages below to set up, integrate, and customize the iOS UI Kit in your app. Follow the order from left to right for a first-time integration.