Ultimate Guide on Synchronized Concurrency and Thread-safety with Kotlin Mutex 🟠

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⌚Timestamps
0:00 - Introduction
0:23 - About Mutex
4:18 - Counter Example
6:08 - AtomicInteger
6:32 - Exceptions
7:26 - Bank Example
9:34 - Singletons

[@ShubhamSinghMusic]

Great video! Thanks for introducing these not so commonly talked about topics. Much appreciated!

[@vengateshm2122]

Very well explained especially using examples related to jetpack compose. Thank you.

[@skarloti]

Beautifully explained and extremely important when working with coroutines.Thanks!

[@StevdzaSan]

@@skarloti Thank you kindly 🙏💪

[@ayushverma2166]

Please make a video on media 3 exo player with custom UI

[@amirfarkhadov5926]

Please, show how to integrate Apple Pay and Google Pay to Kotlin Multiplatform Project

[@jackeblan]

I love this🎉

[@nathanaelheitz6951]

Thanks for the video !
Clearly explained 😊
Could you please make a video in compose multiplatform with bottom navigation menu, that keeps states of each views that are inside the menu ?
I have issues with that... when I switch from menu item A to B and I switch back to A, I loose state. I mention that I have a viewmodel for A and B, delivered by main component... so I don't understand :/
Thanks for help !

[@StevdzaSan]

Usually, a view model is used to preserve a state. You would have to debug your app to see what's going on.
When I encounter an issue like that, i create a sample project and test that one feature in isolation separately. That way, it's easier to pinpoint what's going on. 👍

[@nathanaelheitz6951]

@StevdzaSan Thanka for answering!
I tried to debug with the debugger :)
My final question is : is it normal that the View A is refreshing when we're going back to it from View B ?
Since when I add a breakpoint inside my LaunchEffect(Unit) in View A, it's triggered everytime we're going back to this view
Is it normal?
So in that case, is ViewModel used to restore state ?
In my test, I passed as parameter the ViewModel that I didn't used voluntarily to see if the view is refreshing at going back. I have a button that increments a counter. Then, at going back it's going back to 0.
So if I save that to the viewmodel, value is back again, but I'm persuaded that because I'm using a bottom navigation view, there is a way to preserve state. Maybe I'm wrong !
Thanks 😁

[@StevdzaSan]

@@nathanaelheitz6951 You can use your viewmodel's onClear() function to observe when it's getting dispossed.

[@RashidSoftfruit]

please make video on koin ktor kmp

[@StevdzaSan]

@@RashidSoftfruit I have that in my notes! 👋

[@sayantanrc6194]

At 10:42 inside the "synchronized" block, is it needed to have the "INSTANCE ?: " part? Because the null check is happening before the "synchronized" block anyway?

[@heshamabdo6024]

Nice Topic and i liked the bathroom example ^_^
but what about this :
ReentrantLock is generally considered a better choice than a custom Mutex ?

[@StevdzaSan]

Thanks!

[@skarloti]

8:42 repeat(times = 3) // spend 3x500 =-500 OK

[@StevdzaSan]

The current balance was 1000. 😃

[@skarloti]

@@StevdzaSan 1000-3х500=-500 ?!

[@skarloti]

@@StevdzaSan I apologize. I missed seeing the positive balance check. You have the right. You have captured the occasion perfectly.