Android ViewModel Tutorial| Android Jetpack Components Hindi- CheezyCode #3

Learn Jetpack and Android Architecture Components in Hindi For Beginners. This video covers what is ViewModel, what is the need of ViewModel? The ViewModel class helps to store and manage UI-related data in a lifecycle-conscious way. Learn about the ViewModel Android Architecture component in Hindi. With the help of ViewModel, your android app can survive configuration changes for instance - screen orientation and other lifecycle-related challenges. Learn how to store view-related data in view models.
These components help in writing clean code and help in following clean architecture in android. Learn all this about Android in Hindi by creating small projects. Everything is explained in Hindi (हिंदी में )
Topics Covered -
1. Need of ViewModel
2. Simple Example of ViewModel
3. Adding ViewModel Dependency in build.gradle file
4. Using ViewModelProvider class to associate ViewModels in your UI Controllers such as Activity/Fragments
Beginner series in Android Playlist (Hindi) -
• Android Tutorials Step...
Kotlin Beginners Tutorial Series -
• Kotlin Beginner Tutori...
Java Beginners Tutorial Series -
• Java Tutorial For Begi...
For more info - visit the below link
www.cheezycode.com
We are social. Follow us at -
Facebook - / cheezycode
Twitter - / cheezycode
Instagram - / cheezycode

[@be_like__prateek]

Found your channel very late i.e. today. Had missed many deep concepts. Thanks!

[@sanitbandekar]

Bro aapki videos bahut help full hai plz aap jaldi upload kare mujhe MVVM sikna hai, I know it's take too much time to make,

[@nitunsingh6986]

Great explanation,I literally missed very interesting concepts but now m feeling comfortable. Thanks Alot sir for such a beautiful content

[@rahulraina689]

Best tutorial video approach. Short and specific video for one topic

[@mohammadabbasabidi]

Cheezycode as usual best at teaching. Thanks mate

[@chndraja]

I'm a web dev.. trying to understand android concepts.. your videos helped me a lot... That you so much.. ☺️☺️👍👍👍👌

[@CheezyCode]

Thank you Chandra...request to you - help us reach more people 🤘

[@chetantailor3620]

You are the great tutor...

[@dumbxyz]

WOW. Lovely. I'm reading a book on android and everything that seems confusing, I rush to your yt channel and almost everytime the concepts get cleared thru your videos! Love and Respect from Pakistan ❤️

[@afaaqahmed1697]

Which book dear bro???

[@dumbxyz]

@@afaaqahmed1697 The Big Nerd Ranch Guide to Android Programming 4e

[@nitingupta0805]

Lots of thanks and gratitude Sir.

[@yashkumar9501]

Thank you sir for awesome tutorials

[@CheezyCode]

Thank you Yash❤️

[@FaisarKhan-nv7fo]

Love You Sir ❤

[@siddharthyadav001]

Great 👌👌

[@peyushk]

Good Tutorials !! Please make compose UI tutorials also soon !!

[@puneetchhabra2578]

very mast explaination!

[@smartdeveloper1627]

Very nice tutorial :) waiting for next video

[@CheezyCode]

Thank you! Cheers!

[@vivekonmyway8826]

That's what I am writing for ❤️❤️❤️

[@CheezyCode]

Thanks Vivek..keep loving ❤️

[@shubhamthorat1134]

Simply awesome ⭐⭐⭐

[@CheezyCode]

Thanks 😊

[@AshishGautam-sy3vm]

Nice Explanation ..

[@CheezyCode]

Thanks and welcome

[@Ari-118]

Thank you so much man for making this great video. I appreciate your work.

[@divyayash5858]

Excellent explanation!

[@CheezyCode]

Thanks Divya

[@sanikumarpal2366]

Great Explanation sir

[@CheezyCode]

Thanks Sanikumar 👍

[@sat_talk]

Great video as always..

[@CheezyCode]

Thanks again ❤️!

[@satyamiov3791]

1 video = 1 topic finish

[@knowledge4win382]

Thank You so much sir

[@rushikeshthak2874]

Fantastic.... Nicely explained... Actually what's view model how it works....this concept is cleared.👍... Sir one request is can u make video on how to use view model with volley or retrofit.

[@CheezyCode]

Next wohi planned hai...pehle diffutil dekh ke fir aage retrofit aur paging

[@fffooccc9801]

@@CheezyCode please bring a playlist on external and internal storage in android system

[@macros3798]

Amazing video

[@CheezyCode]

Thank you ❤️

[@macros3798]

Sir upka koi video mis nahi karte, kiu ki bohot hi a6a content late ho. But mera ek request hai is series k liya, pehele koilin fir uske ugle din java. Isse hume our v a6a se sikne ko milain ge our asani hogi samaj ne m. Pls kosis kare sir issy dono ko fida hogi jo kotlin sik na chate ho our jo kotlin ko samaj na chahate ho our jo java se kotlin m jana chahate ho. Upka kotlin wala series a6a tha but muje lagta hai is series comparison hogi too samajne m our v asani hogi. Pls karenge na sir.

[@nimesh519]

nic explaination

[@rohitjakhar6672]

आज समझ आया view model का मतलब

[@sunilnraikar410]

Thanks

[@arpitkanda3487]

Rx java pr bhi video banye sir simple explaination k sath🙏

[@sarabjeetsinghhora7751]

Beautiful

[@CheezyCode]

Thanks Sarabjeet

[@knowledge4win382]

Sir aapne kya koi paid course launch Kiya hai sir hame aap se sikhna hai full app development

[@wolf-splay4956]

Sir Please create a video where frontend in jetpack compose kotlin and backend in node js

[@arpitkhandelwal2999]

Sir view model toh smj aa gya aache s but I think mvvm pattern hardly 3-4 years s use ho rha hai ,,,, Usse phle yeh waali problem ni aati thi (orientation) wali Muje jyda pta ni h is baare m Curious to learn 😂

[@samarthsevak6718]

Ending sound track is awesome... can anyone share me the link for the same.

[@SCRETBRO]

Thank You.

[@CheezyCode]

You're welcome King ❤️

[@EducationSimplified]

Colon colon class.java @7:06, what kind of a reference it yields, double colon, Please answer I’m 34 year old beginner.

[@CheezyCode]

This lets you access the type i.e. your class which is then used to create the instance of that type at runtime. This comes under reflection where at runtime you inspect the internals of a class like it's properties and methods.

[@hardcodeandroid]

Thanks sir

[@CheezyCode]

Welcome ❤️

[@sangitaangbo4471]

# view is to show data and viewModel is to store data.

[@CheezyCode]

model class for view is viewmodel

[@mohitkaranjawala7664]

sir i want to ask one question when previous activity method onDestroy() is called then how viewmodel is retained why not destroyed.

[@CheezyCode]

Activity ke onDestroy pe ViewModel destroy hoga...retain sirf configuration change pe hoga viewmodel

[@PulkitMalhotra]

5:07 sir ye shortcut konsa hai. Kya shortcut key use kri

[@CheezyCode]

Press shift twice

[@sagaraghara9754]

Sir you have World top knowledge as per my opinion, Great video & Explanation, Really very appreciate Subscribed 🙏👍. And sir 1 Que tha ki, (MainViewModel::class.java) esa kyu likhte he? I mean Kotlin he to Java kyu aaya Last me? Mene aapki Beginner Kotlin Series bhi Complete dekhi, but ye JAVA likha wo kahi nai mila, so Plz sir tell me at your time, Thank you 👍

[@CheezyCode]

Runtime pe class ka object banana hai...compiled bytecode java ka hai isliye ::java

[@sagaraghara9754]

@@CheezyCode Ok understood, Thank you sir 👍

[@nayannit]

The soundtrack in the end.. 😂

[@vishalgopalrao8834]

hi can you suggest Video, Music Copyrights check API, or SDK available for android? Thank you in advance

[@CheezyCode]

No idea about that

[@MuhammadNaveed2016]

for every activity and fragment should i have new viewModel.

[@CheezyCode]

Generally ab fragments he use karte hai...and generally 1 fragment ke liye 1 ViewModel banate h..but totally depends on the scenario....

[@MuhammadNaveed2016]

@@CheezyCode Thanks for guide

[@Sikarwar0020]

Sir kitni videos aayengi iss playlist pr..

[@CheezyCode]

lage rahenge iss baari rukenge nahi...abhi rukna mana hai....

[@Sikarwar0020]

@@CheezyCode ham bhi nhi rukenge sab kuch seekhenge

[@kishorramani007]

In diagram, why onDestroy is called while screen rotate?

[@CheezyCode]

Activity is destroyed and then re-created

[@RohanKumar-zn4qg]

Question- viewModel is defined in onCreate() of MainActivity.kt, and onCreate() of MainActivity runs several times. So will there be new viewModel instance assigned every time onCreate() is called? If not then why? Because onCreate() will execute the statement viewModel=ViewModelProvider..... every time onCreate() is called.

[@CheezyCode]

Question mei he hai answer...viewmodel kaise get kar rahe ho? Instance khud se create kar rahe ho ya viewmodelprovider ki help se milta hai instance

[@RohanKumar-zn4qg]

mtlb constructor se initialise krenge to har baar bnega aur ViewModelProvider se krenge to wo check krega aur agar pehle se bna hoga to nhi bnayega?

[@RohanKumar-zn4qg]

Can you please make videos for explaining things like context,requireActivity,requireArguments, compatContext, by viewModels(), by lazy{...} etc

[@sharanpreetchadha5281]

@@RohanKumar-zn4qg Instance toh baar baar ni bnega when onCreate use krenge toh ig har baar shayad call ho

[@milangajera2129]

Hello Sir, When we create an instance of the ViewModel in an Activity we passed this. Here This is the refers to the current class object or variable it means an activity class. When during the configuration chagnes our activity onDestory() and onCreate() happens. then How ViewModel survives the configuration changes. Here this means out activity destroy there is no longer visible. If we pass this Why ViewModel not destroyed? What is the meaning of passing this while we creating an instance of the ViewModel in an Activity? Could you please give me a good explanation with practical cases?

[@CheezyCode]

Good question. There is a dictionary that it maintains to keep track of the objects of viewmodel. This is the main reason why we do not create viewmodel objects ourselves, we ask ViewModelProvider class to provide the instance of viewmodel. ViewModelStore is the class that helps implement the dictionary using HashMap. 'this' - is used to define the key in the dictionary. So after configuration change, you pass the key that will help ViewModelProvider class to return the same instance if it exists. Hope this helps.

[@milangajera2129]

@@CheezyCode Thank you sir for more clarification on my question.

[@Erwinsmith94040]

Sir in my another project rotation se view bhi change ho rhe hai how to solve this issue pls reply!! is viewmodel solve this issue or i need to use different library pls reply sir bohot dino se search kr rha hua solve nahi ho rha??

[@CheezyCode]

Layout folder mei landscape ke liye layout defined h?

[@Erwinsmith94040]

@@CheezyCode sir i am making my project there is this type of problem comes?? What i do??

[@CheezyCode]

ViewModel is for data only. View change ho raha that means you have another layout for landscape mode

[@Erwinsmith94040]

@@CheezyCode sir in my project views reset ho rhe hai by rotating. I can solve this problem by rotation lock kr ke but that is not good way to solve this problem sir pls help me!!

[@Erwinsmith94040]

@@CheezyCode sir single layout hai but animation type project hai jo on process rotate karne se restart ho rha hai i read lot of articles for this issue but nothing helpful 😥

[@courtniallison7473]

extension make in mit

[@priyamprakash1209]

Can you share the PPT ?

[@CheezyCode]

dhundhta hu - mili toh will upload it on cheezycode.com

[@courtniallison7473]

kodular app make

[@PreetiKumari441]

Could you share the source code

[@CheezyCode]

Last video

[@PreetiKumari441]

@@CheezyCode Sorry but i want code of this video only specially, activity_main.xml

[@CheezyCode]

github.com/CheezyCode/RandomQuote

[@reznov.21]

Thank you so much sir

[@naimeimran3247]

Thanks Sir