Bloc Library: Basics & Beyond - Felix Angelov | Flutter Europe 

For those who learning Bloc this is the only video you need !!!

Thank you (all) so much for an amazing library and a matching talk! It is both a good overview and a good learning material! Here are the timestamps: 00:00 - Intro & About 01:34 - Goals for the library 02:41 - BLoC overview 03:20 - Counter Application example 04:00 - Coding (starting from dependencies) 06:22 - Bloc in Action 07:50 - Async 10:40 - Testing 12:47 - Testing (One more time) 13:35 - Async Tests 15:40 - flutter_bloc package 16:10 - coding 16:55 - Bloc Provider 18:20 - dispose() 19:15 - Multiple Blocs 20:05 - Bloc Builder 21:57 - Async Bloc Builder 23:42 - Overview (diagram) 24:25 - Side effects (SnackBars) 26:10 - BlocConsumer (listener and builder) 27:05 - predictability (bloc: onEvent) 28:45 - bloc: onTransition (old state, event, new state) 29:25 - bloc: onError 30:52 - BlocDelegate 32:40 - maintainability (VS Code & IntelliJ plugins for easier code generating) 33:30 - documentation @ bloclibrary.dev 35:10 - hydrated bloc (caches state after app is killed) 35:37 - dependencies and coding 39:20 - a nice guy saying a big thanks (i'm sure he's speaking for all of us) ....:.... - questions

Great presentation, straight to the point. Thanks Felix!

In just 7.5 minutes this video manages to explain a complex concept like bloc!

It's crazy. I just asked for this video in another talk 10 mins ago:) Thanks Flutter Europe and Felix

Felix Angelov's Bloc Library + Marcin Szałek 's Complex UI = Magic

Not all heroes wear capes, thanks for making this library :)

Thanks Felix Bro, I like your Bloc Package. This is the first time i'm watching long video in RU-vid. Now i understand Bloc concepts. Thanks for the Great Talk and Great Package.💙

This guy ! a genius. thanks to you and the team behind the library

Amazing library! I am going to start using bloc_test now. Hats off Felix!

oh snap, Felix Angelov?? Reso Coder is going to be so happy!

Wow, really good talk. Understood exactly what was happening and applicable way in which the package could be used!

Great libraries, thanks Felix!

Now I understand how the BLOC works, thanks .

One of the best talk 👏

Great presentation! I just fell in love with bloc and flutter_bloc!

Really great talk! First time I don't have to watch a video with 1.5 or 2.0 times increased speed =D! Thanks for sharing

thank you so much for making bloc easy to work for us

Yesterday i expend like 6 hours trying tu understand Bloc library, it would been easier if i saw this video before. Great explanation and great set of libraries! :D

Besides the talk about advanced UI/UX in flutter this is the second best so far

amazing presentation, liked it

this package is amazing, if you are not using it I highly recommend it

great video , great explanation , great presenter

This package is amazing !

A gem 💎

very great content, an amazing package

Amazing!!

he said all that in one breath

Thanks, enjoyed it,

Thanks Felix

great job

Super talk 😃😃

that baby Yoda blink :) , great presentation.

Great explanation, was skeptical with using bloc due to the complexity when I first learning it, and stuck with provider all this while, now I'm sold with bloc. Thanks!

This man amazing

best talk ever

really helpful....

Wow nice presentation straight to the point. Now if we can have live sessions or maybe a channel that could show how you build complex apps with multiple pages. I will be happy to check other peoples channel too if you have any.

felix, i love u

Hey @Felix, How can i create my own generator, as you implemented an extention for bloc to get boilerplate code with dart files even, state and bloc.dart files. I am very helpful on the solution which you guys provided. Thanks

Please explain my practical on the favorite button. Thank you for your great efforts

Amazing content! I am a bigger fan of bloc and Flutter in general after this xD PS- Am I the only one to notice that hydrated_bloc example started incrementing with 0 ( 37:55 ) and not with the state it maintained ( 3 in this example) ?

Bloc ❤️

Great talk :) One question comes to my mind: isn't using BlocListener kind of breaking the rule of decoupling the UI from business logic? If we want to do some side action in response to state change, doing so in a UI code (such as the BlocListener widget used in the build method of some StatelessWidgget) is meh. Wouldn't doing those kind of actions fit better inside the bloc itself so that we can test that easly and truly separate UI from business logic? (such as showing a snackbar and what not, that is business logic imo)

can anyone tell me about where i can found some useful resources of rxdart with flutter_bloc ??

Missed opportunity to call TheChild as ChildThe.

When to use Equatable with Bloc? I see a lot of people using Equatable with Bloc and I am not sure what it does actually

He is already in 1.5x speed mode

Knowledgable

woah I just created a bloc pattern for myself and never noticed that this library had is doing almost everything exactly the same

22:05 first code line - replace int with CounterState ?

Hi can you please share GitHub link for this ?

Bloc isn't that hard nor is it verbose for a large app... If you've learned Provider, you're comfortable using Bloc by Felix for larger applications. Having a counter app tutorial doesn't leverage the full features of Bloc itself. Having too complex tutorial like Todos fits for the job, but beginners will have a hard time following it due to huge chunks of code to be followed. Just to take note. State Management solves particular usecase. Bloc + Provider + Abstraction for me is the best combination.

39:30 simple voice 😁

Provider works well

hi, can any one provide the source code of these examples he talked about?

The author of bloc, flutter_bloc

"very very good ventures"?

doesnt it voilate closed and open principle?

@Flutter Europe Hello, Bloc is cool but GetX is more efficent in my oppinion. GetX has State simple/reactive management(without codegen), route Management and Dependencies management 3-IN-1. This is a hidden and powerfull tool that nobody talks about. Some conten about would be great.

Wow nice presentation straight to the point. Now if we can have live sessions or maybe a channel that could show how you build complex apps with multiple pages. I will be happy to check other peoples channel too if you have any.

Wow nice presentation straight to the point. Now if we can have live sessions or maybe a channel that could show how you build complex apps with multiple pages. I will be happy to check other peoples channel too if you have any.