At 1:04:56, no offense, but the explanation seemed a bit flaky. Here are my 2 cents on why the state is not changing even after adding a new to-do object in the 'state' list. When we first initiate the state with an empty list [], this list has an address in memory (say A1), similar to how a house has an address. Continuing with this analogy, like how if more people start residing in the house, the address of the house does not change, similarly if we add more elements in the list, the address of the list will also not change. The emit() function likely compares two states based on the r-value (which is address in the case of Lists, Maps, and objects, and the actual value in the case of primitives like int, float, double, etc). Here emit() concludes that the state has not changed, since the address of the list has not changed, therefore it stops any further processing. Therefore, to actually change the address of the list, 1. We have to create a copy of the list (This creates a new list with a new address (say A2)) 2. Add the items in this new list 3. Pass this new list to emit() Now when emit() compares the two lists, it finds that the address is different, and it updates the state. Hope this helped someone.
@@sagarshah5341 it's general programming concepts not dsa. It works based on the address of list, map etc. To understand this in details need to know how equals and hashcode works
Damn Good explanation Bro , But I didn't understood one thing , as per u r explanation - When we first initiate the state with an empty list [], this list has an address in memory (say A1) which does not contain any value. - Then if we add a value to that list the address of the list will still be the same - According to this analogy , why the first element that is being added is getting shown ? - If u observe clearly at 1:02:55 the first value is shown , its stopped showing only from 2nd value
As of now, This man is God Gift for flutter developer, His insane contribution for Flutter Developers always be memorable in flutter history, this much quality content absolutely for free is ❤❤❤❤❤.
This tutorial is a gem for Flutter developers. The explanations provided are incredibly detailed, making a complex pattern appear straightforward. I'm grateful for the thorough guidance provided by the instructor. Thank you, Master.❤
As my 7th-semester exams are concluding next week in pursuit of a CS degree, I'm eager to delve into Flutter projects. I already have a grasp of Flutter and Dart basics. However, time is limited, and with companies beginning recruitment, I'm feeling the pressure due to the absence of projects. I would greatly appreciate your guidance, Rivaan, including video recommendations to kickstart my Flutter journey, project ideas, and tips for both project development and placement preparation. Your assistance means a lot 🙏🏻
You're a genius! Unlike other RUclipsrs who explain everything at the beginning, you saved the block definition explanation for the end of the video. I really appreciate your content, and thanks to your 2-hour 30-minute tutorial, I successfully cracked the interview. Thank you!
Hey! Just wanted to say thanks! I was on the fence about whether to invest about 3 hours of my time in it, but I am glad I did. Your shown examples along with the explanations helped clear out a lot of the confusions and questions I had.
Thanks, it's really helpful because following the login tutorial from the bloc documentation wasn't enough for a beginner like me. You explain really well, thanks for your time
I came to learn Bloc State Management and ended up as his fan. I love the way how he Explain and teach. If this course was on Udemy, he must hai Millions of Students by now. (An this course should be on Platforms like Udemy) 💯❣💫
When I started watching, I thought "I won't sit here for 2.5 hours..." but I did. This is a great video which explains the subject matter very clearly with good examples.
this is so awesome bloc tutorial and very clear so that developers like me can understand. Can you make a video about the features first appraoch or some project based on bloc
Best Video of bloc no doubt just one thing could you explain more about equatable using bloc and why we do it and what error we can face if we dont if you cannot make a video just reply with some answer because i have noticed sometimes we do the same emit twice bloc listener get called once so will equatable do some logic
At 1:47:38, to avoid the little error glitch is it a good idea to add a check if state is AuthInitial in the BlocBuilder part of the BlocConsumer and return an empty widget like Center? Ex: if (state is AuthLoading) { return const Center( child: CircularProgressIndicator(), ); } if (state is AuthInitial) { return const Center(); } //AuthSuccess Part
On 25:09 would it be a better idea to create a global object for the class CounterCubit? That way we only have to deal with the global instance of the state! What do you think? class CounterCubit extends Cubit { // int counter = 0; CounterCubit() : super(0); void incr() { emit(state + 1); } void decr() { if (state == 0) { return; } emit(state - 1); } } // after creating this object in the same file, no NEED for an extra PROVIDER at all final gCounterCubitObj = CounterCubit();
Hey Rivaan I have a doubt in Todo app , when we first update the empty list by state.add() then emit(state) then why emit is notifying the listeners about the change? I mean todo list page should not show anything right?
Thank you for this! But after finishing this, the weather app didn’t work anymore. The circular progress indicator was just circling infinitely. I tried to run your finished weather app folder on GitHub to check if I didn’t make some kind of error while following the video, but I still got an error, this time "type 'int' is not a subtype of type ‘double' in type cast"
Hey Rivaan, Kindly make a video on Flutter using Stacked state management, tutorials on stacked are almost impossible to find, would be of great helpp!
Thank you so much for tutorial sir.. but getting one error in weather app after all functionality done. "int is not subtype of double" this error also occurred in your weather app that i got from your github and run it then same error got
when we first update the empty list by state.add() then emit(state) then why emit is notifying the listeners about the change? I mean todo list page should not show anything right?
Is not a glich, the state changes really fast and create that effect, add this code below the CircularProgressImdicator if: If(state is AuthSuccess){ return const SizedBox(); } Problem solved
At 1:04:56, no offense, but the explanation seemed a bit flaky. Here are my 2 cents on why the state is not changing even after adding a new to-do object in the 'state' list.
When we first initiate the state with an empty list [], this list has an address in memory (say A1), similar to how a house has an address.
Continuing with this analogy, like how if more people start residing in the house, the address of the house does not change, similarly if we add more elements in the list, the address of the list will also not change.
The emit() function likely compares two states based on the r-value (which is address in the case of Lists, Maps, and objects, and the actual value in the case of primitives like int, float, double, etc).
Here emit() concludes that the state has not changed, since the address of the list has not changed, therefore it stops any further processing.
Therefore, to actually change the address of the list,
1. We have to create a copy of the list (This creates a new list with a new address (say A2))
2. Add the items in this new list
3. Pass this new list to emit()
Now when emit() compares the two lists, it finds that the address is different, and it updates the state. Hope this helped someone.
Good explanation, thanks for taking the time to write & help others!
Man you are good at DSA!
@@sagarshah5341 it's general programming concepts not dsa. It works based on the address of list, map etc. To understand this in details need to know how equals and hashcode works
@@jatindersinghaujla The guy understood what I was implying.
Damn Good explanation Bro , But I didn't understood one thing , as per u r explanation
- When we first initiate the state with an empty list [], this list has an address in memory (say A1) which does not contain any value.
- Then if we add a value to that list the address of the list will still be the same
- According to this analogy , why the first element that is being added is getting shown ?
- If u observe clearly at 1:02:55 the first value is shown , its stopped showing only from 2nd value
As of now, This man is God Gift for flutter developer, His insane contribution for Flutter Developers always be memorable in flutter history, this much quality content absolutely for free is ❤❤❤❤❤.
Thank you so much!!
It is hard working not a gift.
This tutorial is a gem for Flutter developers. The explanations provided are incredibly detailed, making a complex pattern appear straightforward. I'm grateful for the thorough guidance provided by the instructor. Thank you, Master.❤
Seen a lot of state management tutorials but this one is on Top.
As my 7th-semester exams are concluding next week in pursuit of a CS degree, I'm eager to delve into Flutter projects.
I already have a grasp of Flutter and Dart basics. However, time is limited, and with companies beginning recruitment, I'm feeling the pressure due to the absence of projects.
I would greatly appreciate your guidance, Rivaan, including video recommendations to kickstart my Flutter journey, project ideas, and tips for both project development and placement preparation.
Your assistance means a lot 🙏🏻
You're a genius! Unlike other RUclipsrs who explain everything at the beginning, you saved the block definition explanation for the end of the video. I really appreciate your content, and thanks to your 2-hour 30-minute tutorial, I successfully cracked the interview. Thank you!
Wow, I've been after some good, well explained bloc tutorials for a while and yours got literally all my questions answered. thank you so much!
Hey! Just wanted to say thanks! I was on the fence about whether to invest about 3 hours of my time in it, but I am glad I did. Your shown examples along with the explanations helped clear out a lot of the confusions and questions I had.
You are the best thing ever happened to flutter. Your explanations are beginner friendly. Thanks
Thank you!
Manhhhh! This is the best tutorial out in RUclips for bloc state management
You are amazing
Thanks, it's really helpful because following the login tutorial from the bloc documentation wasn't enough for a beginner like me. You explain really well, thanks for your time
Thanks so much. This course was a long overdue for me but I finally got it done. I feel way more confident about Bloc and Cubit now.
I was wondering when Rivaan will move to bloc and here it is. Thank you for showing me a lot in flutter.
My pleasure!
I came to learn Bloc State Management and ended up as his fan. I love the way how he Explain and teach. If this course was on Udemy, he must hai Millions of Students by now. (An this course should be on Platforms like Udemy) 💯❣💫
For those who don't know, Rivaan is only 17
Ikrrrr💀🗿💥
Very valuable content. No one has taught like this❤
When I started watching, I thought "I won't sit here for 2.5 hours..." but I did. This is a great video which explains the subject matter very clearly with good examples.
a big project with bloc and supabase would be very awesome & unique.
This video is worth watching. You cleared so many doubts.
For first time I saw a tutorial completely. 🙂
I have no words!! Fluent like air!!!! Thanks !!!!
Thank you!
Hats off
A big round of applause ✋
A big thanks for this 🙏
My pleasure!
OH MY GOD!!! THANK YOU SO MUCH SIR... this is by far the best video for bloc tutorial.
Nice Video! Thanks from Azerbaijan!
Thank you so much for putting huge amount of time and effort!
You are just awesome my friend. I watch your videos on priority. It helps me stay polished.
was despereatly waiting for bloc wanna see fullstack project on bloc & cubit
Your way of explaining bloc pattern is amazing.
Please make a video of about MVVM architecture using provide.
thanks
Dear Rivaan , U have an excellent explanation skills bro ❤🔥 , This one is a gem 😍
best teacher ever!
i did not know bloc was so easy .thank you so much rivan bhai
Riwan love you man the way you explained bloc outstanding brother, Crystal-clear explanation superb 👏
Rivaan you are gem for a flutter community.
Thanks for clearing my doubts.!!!
Glad it was helpful:)
You are the best tutor ever!
Thank you!!
finally, the Most awaited video ✅ best flutter channel exists on YT
Thank you!!
this is so awesome bloc tutorial and very clear so that developers like me can understand. Can you make a video about the features first appraoch or some project based on bloc
Will be coming soon, hopefully March!
Such a great teacher !
Thank you!
Best Video of bloc no doubt just one thing could you explain more about equatable using bloc and why we do it and what error we can face if we dont if you cannot make a video just reply with some answer because i have noticed sometimes we do the same emit twice bloc listener get called once so will equatable do some logic
MashaAllah.. very good explanation. Deep like diving in the ocean. Recommended to watch.
Thank you!
A Very Big Thanks to You Sir ❤❤
Thankyou so much maaan . Really helpful ❤ . God bless
Hats off waiting for this 🔥
Hope it was helpful!
bloc VS riverpod, which one better for large scale application? please tell me and why?. thank you
best tutorial i heard in a long time🤩
Thanks!
awesome sir. you are the mentor who i was looking for🎉.please,upload more.
At 1:47:38, to avoid the little error glitch is it a good idea to add a check if state is AuthInitial in the BlocBuilder part of the BlocConsumer and return an empty widget like Center? Ex: if (state is AuthLoading) {
return const Center(
child: CircularProgressIndicator(),
);
}
if (state is AuthInitial) {
return const Center();
}
//AuthSuccess Part
On 25:09 would it be a better idea to create a global object for the class CounterCubit?
That way we only have to deal with the global instance of the state!
What do you think?
class CounterCubit extends Cubit {
// int counter = 0;
CounterCubit() : super(0);
void incr() {
emit(state + 1);
}
void decr() {
if (state == 0) {
return;
}
emit(state - 1);
}
}
// after creating this object in the same file, no NEED for an extra PROVIDER at all
final gCounterCubitObj = CounterCubit();
Man you rock! Thanks a lot for sharing your expertise ❤
this is pure gold
Thank you so much sir for uploading a new flutter video again . How long have we been waiting for your next Flutter video?
Hey Rivaan I have a doubt in Todo app , when we first update the empty list by state.add() then emit(state) then why emit is notifying the listeners about the change? I mean todo list page should not show anything right?
Please do a video on Stacked MVVM Architecture
You are awesome at making complex things easy ❤
Thank you!
oh yrr Rivan i dont know who told you what we need on which time 🤣🤣.... tnku Gem
Hahaha, thank you!
Nicely done.
finished!! Amazing content ❤❤❤
Thank you!
Thank you for this! But after finishing this, the weather app didn’t work anymore. The circular progress indicator was just circling infinitely. I tried to run your finished weather app folder on GitHub to check if I didn’t make some kind of error while following the video, but I still got an error, this time "type 'int' is not a subtype of type ‘double' in type cast"
so which is more recommended Bloc or Riverpod ?
thanks a lot Rivaan
brilliant! thank you kind sir! very nice method of teaching!
Pls make a dedicated course on fl_charts and also make a video on how to use fl_charts with api to use real time data for the graphs
Outstanding Explanation.....
Thank you!!
can you create the video like how can we dependency inject, using the annotation, and using of json serizable and more
your video is very useful!
So, i have one Question, Is there any no need domain layer that use in clean architecture?
That's amazing, good video
May you do a video with flutter and gemini pro api please
Hey Rivaan, great tutorials brother. Can you also make a tutorial for Provider like you did for Bloc?
He had it.. you can see it ( in his 3rd app in 20h course of flutter for beginners) but there nothing much in providers ❤
He is a better teacher than a coder😂
Good Bro I wish luck your works
Hey Rivaan, Kindly make a video on Flutter using Stacked state management, tutorials on stacked are almost impossible to find, would be of great helpp!
An Advantageous tutorial.👋
Glad you think so!
Thank you for the wonderful tutorial bro, it is very helpful for me and my team thanks again
My pleasure!
I was waiting for this only 🔥🔥
Hope it helps!
Good morning bro one more request bro can you please do detailed videos on bloc_concurrency and transformer like this one please
Thank you so much for tutorial sir.. but getting one error in weather app after all functionality done. "int is not subtype of double"
this error also occurred in your weather app that i got from your github and run it then same error got
Bro can you send your vscode settings json, I loved your theme ❤
see you should also include stream subscrption using bloc it would be
every much appreciated
Thanks great help, would like to see firebase full using clean arvh and cubit all cruds fcm cloud functions and model based work
Sir what about equatable package , you didn't even mentioned it while others are using it
Part 2 : Bloc + Freezed with
Clean Architecture
it was fantastic!!! thanks
Glad you liked it!
how you are getting logs .please tell me if there is any extension ,as my console is getting filled with unnecessary data but not like your console
Great video 👌👌👌
rivan bhai next responsive design tutorail please
Hello! I have an issue with the Weather App. It gets me error message -~type 'int' is not a subtype of type 'double' ~-
How to handle stream and bloc state value in another bloc
Which theme are you using? Could you please tell me the name ???
.
write this in search and we found the theme 'eserozvataf.one-dark-pro-monokai-darker' the name is One Dark Pro Monokai Darker theme
You are insane. Thx for everything. Im learning from u a lot.
Please give a tutorial for getx. Not able to find proper documentation.
Amazing video, that's very good
Thank you!
what do you feel which is better bloc or riverpod for state management tool
?
try both and see which one rocks your boat
Quite good explain
1:04:22 is the important point
when we first update the empty list by state.add() then emit(state) then why emit is notifying the listeners about the change? I mean todo list page should not show anything right?
well explained
You are hero
Tqsm bro for making videos most beautiful 😍
Most welcome!
Awesome thanks bro
which plugin are you using for icon theme ?
???
is vscode icon 😂
vscode-icons
Thanks@@RivaanRanawat
1:37:17 when after circular loading indicator ends it shows previous screen for a bit and then goes to next one, is it a glitch or what?
Is not a glich, the state changes really fast and create that effect, add this code below the CircularProgressImdicator if:
If(state is AuthSuccess){
return const SizedBox();
}
Problem solved
which file icon theam your are useing
Please make tutorial onfood ordering app or ride sharing app