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🇭🇰 _Hong Kong App Developer; Android, iOS & Firebase lover; Sharing & Writing can strengthen my knowledges!



  1. Right-to-left layout support
  2. Vertical orientation (Scroll vertically)
  3. modifiable Fragment collections




Google Sign-In can allow the user to sign in to our app through their Google account. No more extra account numbers and passwords!

Step 1) Install Google Sign-In SDK through CocoaPods


UIPageControl usually works with an UIPageViewController or a paginating UIScrollView. For example, Instagram. Can we customise it as elegant as possible? 😉

A UIPageControl with custom tint colour and image sources


UIPageViewController is useful for displaying information in a series of UIViewControllers with great animation. You can see this widget everywhere, e.g. App Store, WhatsApp and Album app.


Firebase and iOS

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store