...In this module, a View Controller (VC) was developed for user login and to create a new user. Buttons and text fields were customised with a font, background, colours and borders. Constraints were set to position the elements.User authentication was developed using cocoapods and the Firebase SDK system. Setting up user authentication in xcode, involves obtaining the user's credentials, i.e. username and password and verification.An 'auth' protocol was used to assign user access.The status of users needs to be tracked in the app. A listener needs to be set, to determine if the user is logged in or not and how the app should function. A comments feature was added to the app - a speech bubble, with the number of comments shown and the ability to add a comment. When the bubble is clicked, it displays the comments, together with the date, time and username.
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