Incoming Call

Overview

The Incoming call is a Component that serves as a visual representation when the user receives an incoming call, such as a voice call or video call, providing options to answer or decline the call.

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Usage

Integration

CometChatIncomingCall being a custom view controller, offers versatility in its integration. It can be seamlessly launched via button clicks or any user-triggered action, enhancing the overall user experience and facilitating smoother interactions within the application.

Swift

let cometChatIncomingCall = CometChatIncomingCall().set(call: call)
cometChatIncomingCall.modalPresentationStyle = .fullScreen
self.present(cometChatIncomingCall, animated: true)

If you are already using a navigation controller, you can use the pushViewController function instead of presenting the view controller.

Actions

Actions dictate how a component functions. They are divided into two types: Predefined and User-defined. You can override either type, allowing you to tailor the behavior of the component to fit your specific needs.

1. SetOnAcceptClick

The setOnAcceptClick action is typically triggered when the user clicks on the accept button, initiating a predefined action. However, by implementing the following code snippet, you can easily customize or override this default behavior to suit your specific requirements.

Swift

let cometChatIncomingCall = CometChatIncomingCall()
.setOnAcceptClick(onAcceptClick: { call, controller in
//Perform Your Action

})

2. SetOnCancelClick

The setOnCancelClick action is typically triggered when the user clicks on the reject button, initiating a predefined action. However, by implementing the following code snippet, you can easily customize or override this default behavior to suit your specific requirements.

Swift

let cometChatIncomingCall = CometChatIncomingCall()
.setOnCancelClick(onCancelClick: { call, controller in
    //Perform Your Action

})

3. OnError

You can customize this behavior by using the provided code snippet to override the On Error and improve error handling.

Swift

let incomingCallConfiguration = IncomingCallConfiguration()
.setOnError (onError:{ error in
//Perform Your Action

})

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Filters

Filters allow you to customize the data displayed in a list within a Component. You can filter the list based on your specific criteria, allowing for a more customized. Filters can be applied using RequestBuilders of Chat SDK.

The IncomingCall component does not have any exposed filters.

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Events

Events are emitted by a Component. By using event you can extend existing functionality. Being global events, they can be applied in Multiple Locations and are capable of being Added or Removed.

Events emitted by the Incoming Call component is as follows.

Event	Description
onIncomingCallAccepted	Triggers when the logged-in user accepts the incoming call.
onIncomingCallRejected	This event is triggered when the logged-in user rejects the incoming call.
onCallEnded	This event is triggered when the initiated call successfully ends.

Add Listener

// View controller from your project where you want to listen events.
public class ViewController: UIViewController {

   public override func viewDidLoad() {
        super.viewDidLoad()

       // Subscribing for the listener to listen events from user module
        CometChatCallEvents.addListener("UNIQUE_ID", self as CometChatCallEventListener)
    }

}
 // Listener events from user module
extension  ViewController: CometChatCallEventListener {

    func onIncomingCallAccepted(call: Call) {
        // Do Stuff
    }
    func onIncomingCallRejected(call: Call){
        // Do Stuff
    }

    func onCallEnded(call: Call) {
        // Do Stuff
    }
}

Emitting Group Events

//emit this when logged in user accepts the incoming call
CometChatCallEvents.emitOnIncomingCallAccepted(call: Call)

//emit this when logged in user rejects the incoming call
CometChatCallEvents.emitOnIncomingCallRejected(call: Call)

//emit this when logged in user cancels a call
CometChatCallEvents.emitOnCallEnded(call: Call)

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Remove Listener

View controller

public override func viewWillDisappear(_ animated: Bool) {
      // Uncubscribing for the listener to listen events from user module
      CometChatCallEvents.removeListener("LISTENER_ID_USED_FOR_ADDING_THIS_LISTENER")
}

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Customization

To fit your app’s design requirements, you can customize the appearance of the conversation component. We provide exposed methods that allow you to modify the experience and behavior according to your specific needs.

Style

Using Style you can customize the look and feel of the component in your app, These parameters typically control elements such as the color, size, shape, and fonts used within the component.

1. IncomingCall Style

You can customize the appearance of the IncomingCall Component by applying the IncomingCallStyle to it using the following code snippet.

Swift

let incomingCallStyle = IncomingCallStyle()
.set(titleColor: .systemCyan)
.set(background: .orange)
.set(borderColor: .red)
.set(borderWidth: 4)
.set(subtitleColor: .green)
.set(titleFont: .boldSystemFont(ofSize: 27))

let cometChatIncomingCall = CometChatIncomingCall()
.set(user: user)
.set(incomingCallStyle: incomingCallStyle)

List of properties exposed by IncomingCallStyle

Property	Description	Code
set Background	Sets the background color for IncomingCall	.set(background: UIColor)
set CornerRadius	Sets the corner radius for IncomingCall	.set(cornerRadius: CometChatCornerStyle)
set BorderWidth	Sets the border width for IncomingCall	.set(borderWidth: CGFloat)
set BorderColor	Sets the border color for IncomingCall	.set(borderColor: UIColor)
set TitleColor	Sets the title color for IncomingCall	.set(titleColor: UIColor)
set TitleFont	Sets the title font for IncomingCall	.set(titleFont: UIFont)
set SubtitleColor	Sets the subtitle color for IncomingCall	.set(subtitleColor: UIColor)
set SubtitleFont	Sets the subtitle font for IncomingCall	.set(subtitleFont: UIFont)

2. Avatar Styles

To apply customized styles to the Avatar component in the IncomingCall Component, you can use the following code snippet. For further insights on Avatar Styles refer

Swift

Swift

// Creating  AvatarStyle object
let avatarStyle = AvatarStyle()
.set(background: .red)
.set(textFont: .systemFont(ofSize: 18))
.set(textColor: .systemTeal)
.set(cornerRadius: CometChatCornerStyle(cornerRadius: 8.0))
.set(borderColor: .systemBlue)
.set(borderWidth: 5)
.set(outerViewWidth: 3)
.set(outerViewSpacing: 3)

let cometChatIncomingCall = CometChatIncomingCall()
.set(user: user)
.set(avatarStyle: avatarStyle)

Ensure to pass and present cometChatIncomingCall. If a navigation controller is already in use, utilize the pushViewController function instead of directly presenting the view controller.

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Functionality

These are a set of small functional customizations that allow you to fine-tune the overall experience of the component. With these, you can change text, set custom icons, and toggle the visibility of UI elements.

Example

In this example, we’re enhancing the interface by customizing the accept and decline button icons. By setting custom icons for both the accept and decline buttons, users can enjoy a more visually appealing and personalized experience.

This level of customization allows developers to tailor the user interface to match the overall theme and branding of their application.

Swift

View controller

import UIKit
import CometChatUIKitSwift
import CometChatSDK
import CometChatCallsSDK

class ViewController: UIViewController , CometChatCallDelegate{

    func onIncomingCallReceived(incomingCall: CometChatSDK.Call?, error: CometChatSDK.CometChatException?) {

    let cometChatIncomingCall = CometChatIncomingCall()
        .set(acceptButtonIcon: UIImage(systemName: "timelapse")!)
        .set(declineButtonIcon: UIImage(systemName: "iphone.slash")!)
        .set(call: incomingCall!)
        cometChatIncomingCall.modalPresentationStyle = .fullScreen

self.present(cometChatIncomingCall, animated: true)
}

If you are already using a navigation controller, you can use the pushViewController function instead of presenting the view controller.

Below is a list of customizations along with corresponding code snippets

Property	Description	Code
title	Sets the title for CometChatIncomingCall	.set(title: String)
call	Sets the user object for CometChatIncomingCall	.set(call: Call?)
group	Sets the group object for CometChatIncomingCall	.set(group: Group)
disablesoundForCalls	Disables sound for calls	.disable(soundForCalls: Bool)
customSoundForCall	Sets custom sound for calls	.set(customSoundForCalls: URL?)
acceptButtonText 🛑	Sets the text for accept button for CometChatIncomingCall	.set(acceptButtonText: String)
acceptButtonIcon	Sets the icon for accept button for CometChatIncomingCall	.set(acceptButtonIcon: UIImage)
declineButtonIcon	Sets the icon for decline button for CometChatIncomingCall	.set(declineButtonIcon: UIImage)

Advanced

For advanced-level customization, you can set custom views to the component. This lets you tailor each aspect of the component to fit your exact needs and application aesthetics. You can create and define your views, layouts, and UI elements and then incorporate those into the component.

The IncomingCall component does not provide additional functionalities beyond this level of customization.

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