updateCallKitIcon method

@override Future<bool?> updateCallKitIcon({ String? icon, })

Set iOS call kit icon

This allows for CallKit customization: setting the last button (bottom right) of the callkit.

Ensure you have an icon registered in your XCode project (Runner > Assets)

To do this:

• open XCode
• Create/Add your transparency / white mask image into Assets.xcassets (i.e. image uses Alpha channel only (https://developer.apple.com/documentation/callkit/cxproviderconfiguration/2274376-icontemplateimagedata)
• Name of icon e.g. "TransparentIcon"

Use TwilioVoice.instance.updateCallKitIcon(icon: "TransparentIcon")

Implementation

@override
Future<bool?> updateCallKitIcon({String? icon}) {
  return _channel.invokeMethod('updateCallKitIcon', <String, dynamic>{"icon": icon});
}