{"id":1980,"date":"2022-06-29T11:56:07","date_gmt":"2022-06-29T06:26:07","guid":{"rendered":"https:\/\/www.enablex.io\/insights\/?p=1980"},"modified":"2023-11-28T10:26:19","modified_gmt":"2023-11-28T04:56:19","slug":"build-ios-video-call-app-using-few-lines-of-code","status":"publish","type":"post","link":"https:\/\/www.enablex.io\/insights\/build-ios-video-call-app-using-few-lines-of-code\/","title":{"rendered":"How to Build an iOS Video Call App with Few Lines of Code"},"content":{"rendered":"

As digital communication is growing rapidly, app-to-app calling stands out as an exciting thing to try out. While it feels tempting to quickly add an audio\/video calling feature into your iOS app, it\u2019s not an easy job. That\u2019s because building it from scratch involves plenty of coding and complex integration. <\/span>\u00a0<\/span><\/p>\n

That\u2019s where the EnableX CallKit framework comes into the picture. It makes the process quite simple and easy, and you do not need to invest much time and energy in writing unending lines of code!<\/span><\/p>\n

T<\/span>his <\/span>detailed<\/span> tutorial on ‘How to Build an iOS Video Call App’ <\/span>take<\/span>s<\/span> a look<\/span> at how to<\/span> leverage <\/span>the <\/span>WebRTC<\/span><\/a>–<\/span>based <\/span>E<\/span>nableX V<\/span>ideo <\/span>framework<\/span> and <\/span>the <\/span>EnableX CallKit to <\/span>enable<\/span> Audio &<\/span> V<\/span>ideo<\/span> features<\/span> with<\/span> a <\/span>native dialer interface<\/span> o<\/span>n your <\/span>app.<\/span><\/p>\n

What <\/span>I<\/span>s EnableX Calling UI Framework?<\/span><\/span><\/h2>\n

It<\/span>\u2019s<\/span> a<\/span> fram<\/span>ework <\/span>that <\/span>helps<\/span> developers <\/span>to <\/span>enable <\/span>audio and video <\/span>features in<\/span> the <\/span>app<\/span> with <\/span>just <\/span>a few lines of code<\/span>, <\/span>that\u2019s<\/span> it! <\/span>The framework consists of two parts: <\/span><\/p>\n

    \n
  1. EnableX UIKit – Built on top of <\/span>the <\/span>native UI components<\/span><\/li>\n
  2. EnableX iOS A<\/span>udio<\/span>\/V<\/span>ideo<\/span> c<\/span>alling <\/span>f<\/span>ramework.<\/span><\/li>\n<\/ol>\n

    EnableX CallKit Framework<\/span>: The Problem <\/span>I<\/span>t Solves<\/span><\/span><\/h2>\n

    Before we dive in, let\u2019s first go over a few things that you need to know.\u00a0 Earlier, we had introduced iOS SDK so that you could build an iOS Video Call App with audio\/video features. But it still required the creation of a Calling UI by the developers. In addition, all calling-related events also needed coding. The bottom line is that it still required plenty of coding from the developer\u2019s side.<\/span><\/p>\n

    To make it easy & fast, EnableX introduced UIKit. Once it\u2019s added to a project, it automatically installs required iOS SDKs, and automatically handles all the UI and calling-related events. It also helps create 100% native UI. So, with this feature, a developer can add the audio\/video feature to an app with just a few lines of code. The UIKit enables a live video chat and also manages all calling-related events. Now, the question is, when you enter the room and want to add other participants\/users to join the session, they need to be informed. This can be done by creating events to send notifications to end-users (or participants). But for that, a calling UI is required at their end, otherwise, they can\u2019t join a call. It\u2019s an essential feature for a seamless audio or video call experience. However, it again demands a lot of coding.\u00a0 <\/span>\u00a0<\/span><\/p>\n

    Apple\u2019s CallKit tried to solve this issue by taking care of the UI part, but the problem of managing notification-related events still persisted.\u00a0<\/span>\u00a0<\/span><\/p>\n

    The EnableX introduces the CallKit framework to take care of these issues. It intelligently replicates all native classes of CallKit framework. It wraps all classes into a single unified class, and also internally manages calling-related events. Thanks to the EnableX CallKit, a developer now needs to write just 4-5 lines of code instead of the usual 800-1,000 lines.<\/span><\/p>\n

    *The notifications can be handled by APNS or any third-party notification provider service.\u00a0<\/span>\u00a0<\/span><\/p>\n

    * Enable VoIP service on your certificate if you want to open CallKit through notifications.<\/span><\/p>\n

    Note:<\/span><\/b> To try out this code, use iPhone with iOS 12.0 or a higher version.\u00a0<\/span>\u00a0<\/span><\/p>\n

    Note<\/span><\/b>: CallKit is not supported on simulators.<\/span><\/p>\n

    <\/h2>\n

    Prerequisites for Building iOS Video Call App<\/span><\/span><\/h2>\n
      \n
    1. Basic-to-intermediate level understanding of Swift\/objective-C and Xcode is required.\u00a0<\/span>\u00a0<\/span><\/li>\n
    2. The Voice-Over IP feature needs to be enabled in the application under the background mode.\u00a0 <\/span>\u00a0<\/span><\/li>\n
    3. To visit the tutorial, create an <\/span>EnableX Developer Account<\/strong><\/span><\/a>.\u00a0<\/span>\u00a0<\/span><\/li>\n
    4. Xcode 10 or higher version is needed.<\/span>\u00a0<\/span><\/li>\n
    5. You\u2019ll need iOS\u00a0 12 or a higher version for installing EnableX CallKit.<\/span><\/li>\n<\/ol>\n

      Let\u2019s <\/span>now take a <\/span>step-by-step <\/span>look at how <\/span>to build a simple and seamless <\/span>a<\/span>pp-to-<\/span>a<\/span>pp <\/span>c<\/span>alling<\/span> mechanism<\/span>. <\/span>Let\u2019s<\/span> start<\/span> with<\/span> install<\/span>ing<\/span> the <\/span>EnableX CallKi<\/span>t:<\/span><\/p>\n