Android LiveData Tutorial | Android Architecture Components Hindi- CheezyCode #6

[@satendrapal8630]

Hindi me padhaya to easily samajh aa Gaya . Official course is good but Hindi me jaldi samajh aata hai Good do your great work Sir 👍🙇

[@mohdflame3944]

bhai i love ur voice 😎

[@sandhyabhat7712]

Thank you for simplifying this concept. It was really helpful!!

[@CheezyCode]

You're very welcome!

[@shubhmittal1189]

This concept was so much interesting. Your easy explanation made it enjoyable. Thank you.

[@CheezyCode]

Thanks Shubh

[@AmjadxDev]

mujay yeh samj ni aya k LiveData ko use kia tab b data change howa to phir live data ko use krne ka advantage kia h yaha per? 10:14

[@ketanwaghmare9327]

Bro i was looking for the mentor like you...Thank You for sharing valuable content🙌

[@CheezyCode]

Thanks and welcome

[@narayandhingra6921]

Amazing man, your explanation are even more concise than kotlin :p keep it up

[@CheezyCode]

Thanks Narayan

[@mrx4650]

😃

[@H1MANSHU]

9:19 , why its recommended to set the variables private and declare an internal variable to set and get the deta ? like i always have a doubt between public var and private var , everyone say " taki koi or excess na kar paaye " what does it mean ? I am the person who is writting the program and i am creating many activities so i will be the only one who can access and change those variable values, even i don't have to create internal var again and again .. . I know this sounds like silly question but its what i have in my mind as a cronic doubt . 🙂

[@H1MANSHU]

I asked this because its really its really inconvenient to me when i am dealing with bottom nav and fragments and only have one viewModel for the activity which contains all those fragments , so for every live data i use to think for two variable names one for the var and another for the internal var ! So what will happen if i declare all those live data variable public and the functions as well ?

[@CheezyCode]

Abhi karta hu answer

[@CheezyCode]

Got it...let's say you have a team of developers working on the same codebase. You did not follow good practices and you made everything public. You have 10 fragments using the same viewmodel. As you have exposed these publicly, some one from your team used it in one of the fragment to produce values and later some bugs come in. Now you have to go through those 10 fragments to figure out where it is happening. You could have prevented this if you only had one place for emitting values. So to keep it encapsulated, you have made sure that emitting only happens from one place that is inside the viewmodel. All others will be just consuming those values. This is why private variable are meant for internal use and public are public. This is encapsulation. Hope this answers your query.

[@H1MANSHU]

@@CheezyCode waaw .. i got it ! now i know the real reason behind this ... Thanks for explaining with example .. 🙂

[@DiwakarSingh-pz4ww]

How to call multiple api using MVVM architecture and LiveData

[@devrungta3970]

For android dev, I always suggest his videos and rivaan ranavat for cross plaform

[@govindchoudhary7311]

good sir

[@soumayamondal6915]

jast beautify explanation sir. plz share more video on Android

[@CheezyCode]

Thanks 👍...check the playlist section

[@soumayamondal6915]

@@CheezyCode i am very thankful to you. To helping me to learn mvvm concept.

[@soumayamondal6915]

Sir make video on shreviewmodel

[@CheezyCode]

Noted

[@Anujkumar-be1eh]

Great Sir, Please make the Vidos on the Jetpack compose UI thanks

[@CheezyCode]

July ke baad - jab release version ready hojayega fir dekhte h - abhi XML kahi nahi jaane wali - 10 saal ka codebase maintain karna hoga jahan bhi jaaoge android ke liye.

[@Techopener10]

sir yeh jo aapne video ke end me song lgya h bo btado please

[@anupsarkar3063]

Great explanation....keep going 👏

[@studio2038]

thanks very clearly example

[@ShubhamSinghMusic]

❣️❣️great video. Thanks!

[@samraatsinghchauhan4379]

BAng ơn, so simple. faadu bro

[@prem_patel7]

Thank you buddy 🤗😉😊👍

[@CheezyCode]

Thank you

[@the_sharma_amit]

4:43 --- how to create observer in java..

[@rishabhgarg6692]

Hey when their is nothing in my livedata i.e value is null than observer didn't work am i right? val text = MutableLiveData() // Live data in viewmodel model.text.observe(this, Observer { // in main activity Log.d("tage", model.text.value?: "hi") txt.text = model.text.value }) Now my ques is this log didn't print anything , not even "hi" why?

[@CheezyCode]

As soon as data changes, observer is notified that - Hey! Data is changed - do the required changes. You need to post/set value in your live data to trigger the observer code

[@rishabhgarg6692]

@@CheezyCode but my text view still have that hello world text, but expected it should be empty as from the livedata as data is different ?

[@tusharsrivastava107]

declaring another variable as livedata apart from mutable live data in view model will make the view model bulky ? or is there any other solution to handle it.

[@CheezyCode]

Won't make it that bulky...segregate viewmodels as well...this is the way to use livedata

[@riddhigupta5236]

this course is for beginners?

[@CheezyCode]

Beginner friendly - considering little knowledge about Android Activities, Intents

[@gauravmishra3503]

Please make videos in java as well

[@mojeebhasan5283]

why do we observe livedata in onCreate method of an activity?

[@CheezyCode]

Because when activity is re-created - oncreate will be called and we will get the data stored in ViewModel

[@deepakborade4123]

Nice explain

[@CheezyCode]

Thank you Deepak

[@alltechpoint8508]

Thanks for explanation.

[@CheezyCode]

You're welcome

[@sadaqathussain2062]

Great Sir keep it

[@rishabhgupta655]

Simply i use interface instead of livedata

[@rahulKaushal39]

Gold ke live rates : API se kaise karenge ??

[@rohitjakhar6672]

Iske liye public libray mil jayegi pr production ke liye free nahi hogi Pr aap jsoup library ka use krke kidi bhi live rate wali website se data scrape kr skte ho

[@vikashgupta2189]

Great explanation bro👍 Keep it up

[@CheezyCode]

Thanks 🙂

[@omsharmaudaipur]

amazing bro

[@ajaykumarvishwakarma4720]

setValue and postValue ka use bhi batana tha aapko. :)

[@CheezyCode]

😁 ek joke yaad aagya Bunny ye life hai kuch na kuch toh chotega he 😂

[@ajaykumarvishwakarma4720]

@@CheezyCode haha... Jarur

[@islamicinsightbysaifi]

Sir, Make a video on Dagger Hilt

[@mojeebhasan5283]

On rotating screen how a livedata can be observed because the viewmodel retain old data and the livedata is not updated?

[@CheezyCode]

As soon activity becomes active it will get the updated data from the ViewModel using LiveData

[@a_72_saquibsheikh44]

Thank you very much bro

[@CheezyCode]

Thank you Saquib

[@hardcodeandroid]

Very helpful video

[@kt_radhakishan]

Nice sir love you so much sir. Pls make a video on Livedata VS Fow. Pls pls pls pls Love from Indore MP

[@CheezyCode]

Noted

[@kt_radhakishan]

@@CheezyCode Sir are you from?

[@CheezyCode]

@@kt_radhakishan Noida

[@raiadnan9724]

bro would you please tell us how we can play our quotes? I mean to say how we implement player in quotes app so user can read, listen and copy Qoutes at the same time.

[@CheezyCode]

1. Text to speech android 2. Copy to clipboard android Just search these terms, you will get your answers

[@raiadnan9724]

@@CheezyCode your method is awesome and easy to understand that is why I request you to make a video tutorial. ❤️

[@raiadnan9724]

@@CheezyCode I am not talking about text to speech. I am talking about how we play our quotes if we have mp3 files. I have my quotes app now I want user can also listen my quotes using play button. I also have all quotes mp3 files. I want to upload all my audio files on my server and fetch these mp3 files from server and play in kotlin. Now hope you understand what I mean to say.

[@beyondlimits384]

@@raiadnan9724 as u got ur answer or not??

[@ujjwalful]

Thank you

[@mdwasiahmad1109]

Why nee live data?

[@bilalfarooq7083]

Awesome

[@NiteshSingh-bv9lu]

what is difference between livedata and viewmodel ?

[@CheezyCode]

Check ViewModel Video as well

[@NiteshSingh-bv9lu]

@@CheezyCode ok

[@neerajverma9226]

ViewModel survive configuration changes such as orientation rotation, while Live data notifies data when it receives any changes

[@NiteshSingh-bv9lu]

@@neerajverma9226 ok

[@NiteshSingh-bv9lu]

I have use 1 activity and 2 fragments . if 1 fragment is destroyed .after that what happen in view model ? How to work view model in this situation

[@neerajverma9226]

if we are dealing with list of objects with live data then how we can notify any changes to the observer?

[@CheezyCode]

notify observer ka ek extension function ho update karne ke liye...usko use kar skte h...ya ek separate list maintain karo...live data mei uska reference use kar skte ho...

[@yashpatel-tz7gg]

I want the LiveDateExample Source code

[@CheezyCode]

Just write it down...it's a simple one

[@govindchoudhary3177]

love you sir

[@rohitjakhar6672]

Live data ki value delete kaise kre?

[@CheezyCode]

aisa karenge kyo ?? just remove the observer

[@rohitjakhar6672]

@@CheezyCode same ui me 2 resources se value dikhank ho To agr ek resources ki value null ho to wo old wale ki dikha deta hain to pahle usko delete karna padta hain

[@hammadyousuf5349]

any other videos comming

[@CheezyCode]

Yes today

[@KaranCode]

👏👏👏👏👏

[@arshadqureshi5997]

Good Video but make in java

[@CheezyCode]

Bro now Kotlin will be used everywhere for all new things in Android. It will be better you switch to Kotlin.

[@kishorramani007]

Humne factsLiveDataObject ko private banaya, kyoki we think that factsLiveDataObject ko koi change kar sakta hai... Agar data change karna hai toh koi bhi updateLiveData se bhi kar sakta hai... Jyada kuch pata nahi chala... 🤔

[@CheezyCode]

Update live data mei logic likh skte ho ko value update karni h ki nahi...getter and setter wali baat hai... cheezein encapsulate hogayi h

[@URKCSKaushikSaha]

bhai ap itna fast keu bolte hoo...as if ap rap kar rahe ho...