Ep.3 - Singleton | Flutter Design Patterns

This is the third episode of Design Patterns Series in Flutter, designed for beginners. In this episode, we are going to understand what Singleton is. We will go through an overly complicated definition, understand it using analogy, take dart example and understand the various ways of using Singleton, then understand when and why to use this design pattern along with the disadvantages it brings. At last, we also see how to use Singleton in Abstract Factory Pattern, pattern discussed in the 2nd episode.

Timestamps:
(00:00) Introduction
(00:07) Definition (Singleton)
(00:17) Analogy (Singleton)
(01:23) Code Example Approach 1 (Singleton)
(11:00) Code Example Approach 2 (Singleton)
(12:09) Code Example Approach 3 (Singleton)
(15:16) Use Cases (Singleton)
(17:35) Advantages (Singleton)
(19:20) Disadvantages (Singleton)
(22:51) Singleton in Abstract Factory

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[xAdiyat]

Been watching you for a long time. Dude you deserve more❤

[johnveslyalanroy]

Thank you so much for this amazing teaching and presentation, Easy to Understand the concept <3

[frozendeadbush]

Thank you so much man! These videos are the best.

[yusufnadaroglu]

Are you the best teller in the world??? Thank you for this content, <3

[ajaykotiyal]

Well explained. Specially factory way is much confusing in dart. but you explained very well.

[sumitmishra]

Yeah I am eagerly waiting for the new video of this series

[code_with_amir]

just watched your video, and enjoyed your full explanation about Singeltone, congrats you got my SUBSCRIPTION. :)

[naveedkaimkhami]

Bro your content is something worth watching❤. Keep up the good work.

[fatima-cfbj]

thanks great video I love all videos from design patterns. 🤩😍

[mostafabdelkader]

Very good informative design patterns series really i like it and hope to make a another series about unit test in flutter

[szyszak]

Let's say I am fetching data from rest api, and then displaying them into my UI as ListView.builder. The fetch metod i put inside initState, and everytime i changing screen and go back it fetching it again and duplcating the list. Is there any way to fix that issue? I tried use FutureBuilder but it also fetching data everytime i change to another screen. Is Singleton pattern a solution in this case?

[nosakhareendurance]

Thank You so much, have literally being waiting for your update, please do more on this.


Thanks 🙏

[thelandofdevil]

Which extension are you
Giving this cool text defination of instances???

[ibrahimweaxy]

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[MPRGyanStudio]

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