The Ultimate Dagger-Hilt Guide (Dependency Injection) - Android Studio Tutorial
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- Опубликовано: 8 июн 2024
- Dependency injection is a core concept of software development. In this video, I'll show you how you can apply DI in an Android app using Dagger-Hilt.
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00:00 - What is dependency injection?
06:45 - Setting up Dagger-Hilt
08:25 - Setting up the structure
10:39 - Creating a module
17:20 - Injecting into ViewModels
20:15 - Injecting the ViewModel in the UI
21:40 - Creating the application class
24:05 - Two dependencies of same type
26:20 - Binding abstractions
29:58 - Field injection
31:28 - Lazy injection
Man, first of all, you are THE BEST Android RUclips channel in the whole website.
Second, you are just awesome!! You are a great teacher and a very charismatic human being.
Last, but not least, I don't know how you don't get tired of making so many great videos.
You ARE the best!! Thanks for teaching me so much. It's being a pleasure to have your videos as part of my life.
Thank you 🥺🙏
This coment is so sentimental
The best teacher i have ever seen
This is by far the best explanation of Dagger Hilt I have found online. Not even the official Android Developers' RUclips channels explain it like you do. Thank you so much!!
I use dagger/hilt every day but usually as copy/paste so today I decided to finally get known how it works. Your explanation is the best of several that I saw today!
This is the most easy to understand explaination that I've ever found on dagger-hilt till now, you explained each topic very consicely yet clearly
I am a student I can't buy u a coffee but I can like and share your video with my friends.
Amazing Teaching :)
broo thank you, "you never actually call these functions, dagger hilt does", cleared up so much for me!
your tutorials are the best because you take time to explain the subtle concepts behind the code which is rare from other tutorials
i just had to watch this once the get the whole scope of what DI with Hilt is and it implementations
I always try to give credit where credit is deserved. And you my man are pure gold. I just stumbled on your content and I'm happy for that.
Fast, to the point, full of valuable information. Keep on going this is great. I will subscribe, upvote, like.
Wish you a good luck in the upcoming days!
I am lost for words already. Man is always hitting the nail on the end. Much love ❤️.
You're a great teacher. Hats off to you man!! 🙌 Keep making such types of tutorials on android topics.
I still can't believe how terrific these videos are. You explanations are superb. Thank you so much for taking the time to make this content.
Thank you, happy to help!
Man, you don't know how grateful I am right now! THANK YOU SO MUCH!!!
Thank you, excellent content as always. When I decided to switch carrier and become an Android dev, your channel was one of the main sources to learn the basics.
Keep up the good work! 💯
Awesome, thank you and keep it up! 🙏
The quality of your content is incredibly high, awesome stuff!! Thanks a lot!!
Thank you so much for this! It has covered almost all the features of Dagger Hilt.
I always go back to your tutorial because it is very simple and easy to understands from fundamentals point of view
Those videos are with the latest and the best practices. Really the best android tutorials out there.
🙏🙏🙏
My man teaches me more than what I learnt from a 4 yearbachelor's degree.
This is about a tool / library. Tools and libraries will change over time. Most of the things you learn in school won't change.
If you are in engineering school you are not there to learn how to make a hole in metal with one particular kind of machine. You don't need a professor fot that. You are there to know why, when and where you have to make that hole.
@@technics6215but that opinion is way too nuanced!
you are the best Kotlin Android Developer's teacher, or maybe the best programming teacher i've ever watched
The perfect explanation of Dagger Hilt I have ever seen! thank you
You always teach in a very patient and simple way and all i can do i really thank you SO MUCH for what you're doing! I'd say more than 60% of what i know about android comes from you. This is by far the greatest android development channel on RUclips =)
PS: After this video i already implemented Dagger in two of my projects
Thanks a lot mate!
I normally blast through these tutorials but this one took a solid 1-2 hours because of coding and note-taking at the same time and there was so much good content. For example it takes 7 individual scrolls to get through the notes top to bottom, that's a lot more than usual
you slayyyed it!!! 30 minutes video covered almost everything for a person who knew only how to use dagger2 👏
Finallyyy, I learned Dagger-Hilt. Good explanation. Thanks, Philipp
philip lackner, i studied your and workout your Weather app (clean code architecture) course, and i don't understand most of things, then after watching this dependency injection i understand all the doubts i have on the weather app course. super tutorial ;)
Thanks man. This is one of the best Dagger Hilt tutorials I found.
I have such praise for your content. Thank you so much, truly.
Oh my, thanks to YOU, it's such an easy to understand and implement simple clean arch project for my CV now
Hilt would be super easy by your teaching, Thanks alot dear philip
Thanks a lot, I now can understand DI really well.
Great video! I finally understood Hilt! I would create a sequel to this video where you focus on unit tests, you write the tests without hilt first and then with Hilt
I do have a hilt testing video on my channel :)
The KING is BACK! Thanks bro!
Great Explanation!!! Very Easy to understand...
Hey Philipp, I am from India and I really love your videos and it helps a lot. Thanks! God bless you and keep up the good work. Your explanation are so simple that even a fresher can understand. 😊
Hey Mithil, I am new to Dagger Hilt. Can you help me, I want to pass String value from Activity to an AppModule. How can I do that?
@@RaajKanchan why do you want to pass string to app module from activity? Do you want to pass it to next activity?
@@mithilmehta1501 No, no its just an example. Let me give you the example.
-----------------------------------------------------
class Customer @Inject constructor(@CName val customerName: String, private val age: Int) {
fun printCustomerDetails() {
println("$TAG :: $customerName is $age old")
}
}
@Module
@InstallIn(SingletonComponent::class)
object AppModule {
@Provides
@Singleton
@CName
fun provideCustomerName() = "Mithil Mehta"
@Provides
@Singleton
fun provideCustomerAge() = 24
}
@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class CName
@Inject
lateinit var customer: Customer
customer.printCustomerDetails()
-----------------------------------------
Here in the module I am providing CustomerName and CustomerAge statically. Not dynamically. I just want to learn how can I do that.
@@RaajKanchan bro, you are getting it wrong. This is not something to be passed usong dagger. This data which should be passed either from activity to another Activity or else load from network for that particular screen. Dagger should be used to inject those dependencies which screen requires but doesn't care how it is created. So, as per my understanding your usecase is incorrect.
Your tutorials are extremely helpful, thank you so much!
I’m so grateful for all of your brilliant videos on Android development in kotlin and jetpack compose.
Thank you so much for this!
If I might suggest a future video: how to use foreground location for in a MVVP app using datasource-repository-viewmodel architecture.
You are the Best Android development content out there. Thanks for your great content
🙏❤️
dude you're Epic, learning a 'lot of good practices from you which saves me time. 👍👍
Thanks for your videos! It's very helpful! More power to you!
Thanks for the great video! Please consider explaining different scopes and lifecycles for the dependencies too.
Thanks a lot for making this video. Super helpful!
Became so curious after watching this tutorial . Just after I implemented this in
one of my project including database module.
Great video! Thanks so much for the explanation of this library.
thank you so much! finally I understood the magic behind this!
Best Video in short time. Good content.
You're awesome Philipp, thanks so much for this it's really helpful.
Thank you so much for your excellent explanation dude
😀😃😄😁
this cool . I had the same problem and solved it with your content. good luck with your work.
very interesting and clear tutorial! Thank you very much!
love it 💖 still provide complete information and of course free. Thank you.
You're so welcome!
This video was the exact info that i have needed.
I was looking for the same Auth token use case!! Thanks a lot!!
Philipp you look so fresh in new setup..setup looks awesome. we want setup tour
its priceless. the slickness and the passion of the devs. priceless. what is cheaper and better than soft? Piracy is NOT the answer if you
Great sharing! I learned new things from you like @Binds and Lazy Injection
A very frequently my class functionality requires the context. But it is available only in an activity. So I was really frustrated until watched you video. Now, I just tell - inject! That's it, simple and elegant.
Very clear, thanks!
Great video! Well explained, thank you
it was so helpful,Thanks
perfectly explained dude.
This was so helpful!! Thank you
Your videos are all amazing 🙏👍👍👌💯
Really awsome Philipp
You are the best at explaining this so that I understand! Thank you so much! When I get my first job as a developer I will buy you coffey! 🙂
Thank you, happy to help!!
Wow....what an amazing,clear and short to the point explanation. Out of curiosity, I would like to ask a question please. Can we keep the AppModule a normal class instead of object? Is it recommend to make a module (of course, not a binding module) object instead of a normal class? I tested and both works. Tons of thanks for your time and this amazing explanation.
thanks a lot!!! so nice reverb
ITS REALLY WORKED LOL THANK YOU DUDE
Thanks for sharing this video.
Great video, very helpful 👍
great tutorial as always
I understood hilt like never before 🤯
now i understand how to use Hilt properly , within my project but i have still some doubts within my mind about clean architecture implementation, hope so i will figure them too . but thanks for this complete video . 🤩☺
Thank You very much!
Sometimes I thought you might be a superhero 😜 And you Come from a different universe. Best of luck, brother. I am your biggest fan from Coroutines video playlist ❤
Thanks man🙏😅❤️
Awesome! Thank You Philip
Welcome!
Totally Awesome ... Thanks alot ..
Wow man it really works!
you are literally the best
This guy is a gem.
Thanks Philipp 👏🤝
luv
Thank you for sharing!!!
bro as i'm seeing my growth, i have seen growth in you too..actually / definitely your ahead me but somewhere i feelled sync between us.
Thanks Phillip! if you can, can you make a youtube short of app examples that would be considered impressive to get an entry level position? Please. Thanks!!!
damn... you are such a good teacher man
Thank you!🙏🙏
this is so helpful
I think we should use @InstallIn(ViewModelComponent::class.java) since the repository lives inside a ViewModel, in the meantime that we inject the repository inside the ViewModel, hilt will then delete this repository instance when the ViewModel is cleared (onCleared is called, ViewModel is destroyed because its activity/fragment does not need it anymore). If we do it with the SingletonComponent it will be tied up with the Application class you created, and hence, the repository instance will outlive the ViewModel.
Another way of not using @Named could be to use @Qualifiers which can be more verbose on for example creating two different okHttp clients
Great video Philipp, it contains a lot of excellent suggestions !
thank you so much for this amazing explanation, you're very awesome.I have a question please, how i can use dagger-hilt in my multi module project (modules are library-modules not a feature-modules), i thought to create a separate module object (i mean the dagger-hilt-module that annotated with @Module 😅) for each library-module and provide/bind what i need to inject.am i correct ?
Thank you so much. you are the best.
lot of love for you bro
Nice recap, thx man!
Welcome!
first time i saw video i dont get it , after seeing video second time now its crystal clear
Worked, thx
can you create a dagger-hilt tutorial with custom scopes? That will be very useful to understand, especially for apps with user logins
You are very smart man
great and simple🤘
Tnx Again for nice video. If possible make a video about builder pattern/ factory pattern. And why we need to use them.
Very useful video
Great job Phillip! When should we use "vm = hiltViewModel()" vs "vm:MyViewModel" by viewModels()" ??
It was great!