Room Database in Android | Introduction to Room Persistence Library Hindi- CheezyCode #10
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- Опубліковано 6 жов 2024
- Learn Room Database in Android with examples in Hindi. Learn how to store data in SQLite Database in Android using Room Persistence Library. This is part of the android architecture jetpack library. What is the need of a Room Database? What advantages does it provide over SQLite Database? Less Boilerplate and Compile-Time Verification of SQL queries provides a huge advantage over SQLite. Learn what are Entities, DAO, Database class in Android. Learn all this about Android Jetpack Components in Hindi by creating small projects.
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. What is Room Database in Android?
2. Need of Room Library and benefits of using Room Library over SQLite
3. What is Entity? @Entity
4. What is Data Access Object or DAO? @Insert, @Update, @Delete, @Query Annotations
5. How to define a database using RoomDatabase Class? @Database Annotation
6. Simple Example of Room Database
ViewModel Concept -
• Android ViewModel Tuto...
ViewModelFactory -
• Android ViewModel Fact...
Beginner series in Android Playlist (Hindi) -
• Android Tutorials Step...
Kotlin Beginners Tutorial Series -
• Kotlin Beginner Tutori...
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Sir .........Great work......Your teaching will make the lot of guys career......respect from heart...
Thank you for your love brother. Cheers
@@CheezyCode sirjii wo do bar kaise hova entry oncreate tho 1 hi bar call hogna when app opens??
@@CheezyCode sirijii when we open our app as manytimes as we want to should get only the entries in the table once how to implement it
other tutorials:- here is theory explanation || here is code .
cheezy code:- here is theory explanation && here is code + ye language bhi seekh lo vo language bhi seekh lo.
thanks again sir.
Thank you 👍
amazing explanation sir, maine bhot logo ki video dekhi, yaha tk ki 1-1 ghnte vali bhi dekhi lekin kisi ne itna exact aur accha ni smjhaya jitna aapne smjhaya. Dil se shukriya
What an explanation Sir.....Till Now only I used to see code and type but after your explanation, I am knowing every concept line by line...Please upload more concept if you can sir...
very well explained sir, requesting you to please cover more topics.
Yes bro in progress
@@CheezyCode
getting error
"Kotlin version that is used for building with Gradle (1.3.72) differs from the one bundled into the IDE plugin (1.4.21) ""
sir please tell ext.kotlin_version
Thanks in advance
Just google it....you need to update Kotlin version
Your teaching style is very very impressive
thnks for explaining it with such simplicity
Nice explanation. Kotlin coroutine is interesting topic. Request to make a separate video on coroutine as well to clear visibility for the same.
As soon as possible
Good explain really your all videos very nice
tutorial smooth as cheez..
haha...cheers bro ✌️
Very Simple Explanation
Good going
But a small request to u please make a separate video on coroutine
including evething about that it really helps to clear the basis of coroutine and how it works ....
Sure brother...it will be covered in this series
@@CheezyCode THANKS for your efforts ❤️
Hey
Good Explanation
You have mentioned that the getContact function will be called in the background thread. Now, can this also be made a suspend function, so that we can use the advantages of a coroutine rather than running this on a thread only?
We can do that, but since we made its return type a livedata(which anyway runs on background thread) the suspend keyword is skipped for that function
Awesome Sir, thoroughly enjoyed Android Architecture Components playlist.
Do you have any videos on Multi Module Project ?? If not please make one.
Not on multi module - Dagger is in progress then HILT
How to store custom object arraylist in room database, can you please add one video on it
just convert that into json and store it in DB
@@CheezyCode ok, thank you for the reply. Also i want to know can we store a complete arraylist at a time in room?
Yes..
2 options-
- Save method mei list of object accept karlo
- arraylist as a unit store karana hai toh as a string save karlo by converting it into json
@Insert
suspend fun addNote(notes: List)
For instance - this method will store the list of notes in the db in one go
sir new errror pls suggest solution
> 'compileDebugJavaWithJavac' task (current target is 1.8) and 'kaptGenerateStubsDebugKotlin' task (current target is 17) jvm target compatibility should be set to the same Java version.
Can you explain why you have used coroutines-core along with coroutines android? In the documentation for android for coroutines only a single library implementation is used and that is the android implementation.
Safer side....
Thankyou for video aapka din subh ho🙏😊
Haha....thanks bro for supporting
great content
Nice
SIR please provide a complete tutorial about Room Database
Thanks, bro for the Awesome Video..
Thank you brother 🤘. Please support us by sharing these videos if possible
Why google choose to make Room Database as annotation instead of using inheritance in for using room database functionality
Sir how to fetch roomdata into lazyColumn? i searched it ,there are complicated ways shown beyond understanding..please make a video on it through viewmodel,repository etc
Sir please bring course on Android Development
koshish poori hai bro...
Good Work Buddy, DAO m ArrayList support nai krta room ? LiveData ?
Sir can we insert whole ArrayList() at once or we need to insert each element one by one?
Whole list can be inserted...room with mvvm wala example refer kar skte ho
@@CheezyCode thanks sir
@Cheezy Code sirjii wo getcontact() wale function mai...Kisne Flow use kiya hai aur apne LiveData konsa use karna hai?
Flow use kar skte ho....Livedata bhi use kar skte ho...dono aane chaiye...
Entities and POJOs must have a usable public constructor. You can have an empty constructor or a constructor whose parameters match the fields (by name and type). kotlin.unit error
if you face an error in contactDao just upgrade do a minor change in gradel , change the def room_version = "2.4.3" and the error will go
Sir please make a tutorial on SearchView
with suggestions
Hi Can you make video on prepopulate database with upgrade version
sir the kotlin plugin does not support as well as annotation processor there is an error in kapt in my case
Awesome Sir, Please ek video aap Dagger Hilt pe aap banaiye.. bahut easy ho jayega samjhnaa .. please 🙏🙏🙏
new series on Dagger 2 is live.
@@CheezyCode please share link and try to make a series on dagger hilt. Your teaching way is awesome. ❤️❤️👍🙏
Best teacher
Thank you 🤘
sir please make vadoe on concureent acces
after every insert delete and update operation my recyclerview automatically scroll to top ..
..plz tell how to prevent this....
Can Realm better then SQLite for CRUD system ?
Depends on the scenario. This debate is same as SQL vs NoSql. Totally depends on your scenario
new hu to pahle sqlite sikhna chahiye ya diect room database ?
Direct Room
I am using Room database with coroutines but I am unable to compile the code and i am getting following error "error: Type of the parameter must be a class annotated with @Entity or a collection/array of it. kotlin.coroutines.Continuation
Suspend keyword hata kar run kro
@@sommayghosh4617 Thanks bro it worked
Well done 👍
First Comment.. 🔥🔥
Thank you Vipin for your constant support. Cheers 🤘
thank you so much!
Should a newbie in android development learn jetpack or stick to java ,xml ..?
Newbie -
1. KOTLIN
2. ANDROID WITH KOTLIN - BASICS
3. JETPACK COMPONENTS
4. ADVANCED CONCEPTS
@@CheezyCode thank you ....is java /xml still valid because I started with it and becoming comfortable
It is valid and will be there for long.
@@CheezyCode 😁keep the good work on...!thank you
Bhaiya do I need to learn SQL to learn Room database? I have no knowledge of any database system. Newbie Here. Please reply.
Han thoda idea Toh chaiye rdbms visualize karne ke liye - Jahan pe multiple tables involve honge waha thoda gyaan chaiye - baaki agar related tables nahi h Toh issue nahi hoga...
But Sql is recommended for every developer.
Why did you pass "applicationContext"... What if we pass only "this"...
Does this have any effect?
(I know applicationContext ties with application lifecycle and"this" ties with activity lifecycle) if i am not wrong
Activity rotated activity died. Storing activity context holds the object, so memory leak
@@CheezyCode Thx... Bt can you elaborate little bit more...
Thanks
Sir dagger pr Bhi 1 video banadijiye. Pls
For sure....
Android made easy ::CheeY Code
Thanks AP
Pre populate room database
Bro, the data get inserted again after OnCreate again. Suppose I have to put data only once. No matter how many times I run the app, how to do that?
Shared pref
Sir Android Navigation Component b kara de Java mai... Thanks
Bro Android is Kotlin only. Navigation component will be covered but that will be in Kotlin - no more Java in Android world
@@CheezyCode Ok
@@sulmanrasheed007 switch to Kotlin... Asli maza to Kotlin me hai.. sab kuch easy hai aur Features bhi hai Kotlin me as compared to java
cannot find implementation for com.example.aawe.ContactDatabase.
cuasing error where we declared abstract fun in database
Check the dependencies are there
@@CheezyCode thanks error resolved
Super explained
Thank you 🤘
Thanks sir
Thank you Akash for always supporting. Cheers 🤘
Can we store the pdf document in room database?
We can store but what's the need. Keep the file as is and store it's name
SUperb *****
Bro, you rock.
Thanks Tarun
Link to the song at the end? 😅
Mujhe bhi
Bhai function kyu abstract hoga? class kyu abstract hoga? Ye sab nahi btana hota? Ratta mar rkha hai bas vo yaha aake pel diya sab.
😂
Ratta marlo naukri chaiye toh...waise answer jaan na hai toh Google will help...aur shayad shi se puch lete toh yahin bta dete
I have an error on databasebuilder plz help me
What's the error?
@@CheezyCode not enough information to infer type variable T : this is showing to me while i move cursor to database builder and has error(Unresolved reference java) on java(ContactDatabase::class.java)also
Super
Thank you 🤘
please sir,Give us Rx java tutorial. advance thanks
Share GitHub link please
Will do
@@CheezyCode Thanks Ma wait kr rha hun ap k links ka ap tutorials achy hain bus ap source code bhe provide kr dya krain
dataBase = Room.databaseBuilder(
applicationContext,
ContactDatabase::class.java,
"contactDB"
).build() after adding getting error-- java.lang.RuntimeException: cannot find implementation for com.example.roomdatabaseapplication_fromcheezycode.ContactDatabase. ContactDatabase_Impl does not exist
have you solved this issue?
Have you solved this issue
@@aqibriaz5664 yes
yes
@@aqibriaz5664 yes
Room has error
error: There is a problem with the query: [SQLITE_ERROR] SQL error or missing database (no such table: contacts)
public abstract androidx.lifecycle.LiveData getAllContact();
Check the entities annotation on database
@@CheezyCode yes you are right, the entity name was incorrect