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Showing posts with the label Android Room

Room Database: Getting Select Max() Twice After Creating New Recyclerview Item

I have a RecyclerView list of CardView items that is working properly. Upon creation of a new Card… Read more Room Database: Getting Select Max() Twice After Creating New Recyclerview Item

Dao Method Returns List While I Need A Map

In an Android app using Architecture Components I have the following view model: public class MainV… Read more Dao Method Returns List While I Need A Map

How To Add Embedded And Relation To Room Database

Let's say I have these tables : Table - User Stores the users @Entity( tableName = 'U… Read more How To Add Embedded And Relation To Room Database

Android Room - Error: Cannot Figure Out How To Save This Field Into Database

Detailed log error: Cannot figure out how to save this field into database. You can consider addi… Read more Android Room - Error: Cannot Figure Out How To Save This Field Into Database

Android Room Database File Is Invalid File Format In Db Browser

I am going to data/data/myPackage in emulator and download these three files about my apps database… Read more Android Room Database File Is Invalid File Format In Db Browser

What Is The Best Way To Not Use Allowmainthreadqueries() Using Android Room?

I always use allowmainthreadqueries() in Android Room. But many people say it is not recommend to d… Read more What Is The Best Way To Not Use Allowmainthreadqueries() Using Android Room?

Android Room Database Dao Debug Log

Given a Room database DAO like this: import android.arch.persistence.room.Dao; import android.arch.… Read more Android Room Database Dao Debug Log

Rxjava 3 + Retrofit2 - Multiple Inserts To Db Problem

I am trying to do the following; sync a cloud DB using Retrofit to a local SqLite DB (Room) on a de… Read more Rxjava 3 + Retrofit2 - Multiple Inserts To Db Problem

How To Import Room Persistence Library To An Android Project

I recently saw the new feature announced on Google I/O Room Persistence Library to work with Sqlite… Read more How To Import Room Persistence Library To An Android Project

What Is The Clean Way To Check A Select Query Result's Length In Mvvm Architecture?

I am creating an App that will use a SearchView to let user make queries to filter data. I am using… Read more What Is The Clean Way To Check A Select Query Result's Length In Mvvm Architecture?

How To Retrieve List Of Objects From Dao Via Livedata<> In View Model When There Is No Change To Trigger Onchange Method In View Model In Android

I am using android studios to build a dictionary app. Everything has went fairly well with help fr… Read more How To Retrieve List Of Objects From Dao Via Livedata<> In View Model When There Is No Change To Trigger Onchange Method In View Model In Android

Remove Room Database On App Uninstall

I am making an app and I am using Android Room Persistence Library to handle my database layer. Roo… Read more Remove Room Database On App Uninstall

Room Using Date Field

I am using date converter class to convert my date object. However, I still encounter an error sayi… Read more Room Using Date Field

How To Avoid Room Foreign Key Error - Constraint Failed (code 787)

I have 3 entities - 1 child and 2 parent. 2 parent entity may have many child entities, everyone ha… Read more How To Avoid Room Foreign Key Error - Constraint Failed (code 787)

Jetpack Compose Breaks Room Compiler

I created a completely fresh jetpack compose project (from the project template) with Android Studi… Read more Jetpack Compose Breaks Room Compiler

Android: Sqlite Database Created With Room Shows No Tables When Opening With Sqlte-browser

I am using Room Persistence Library 1.1.0. I could find the database file at /data/data/ /databases… Read more Android: Sqlite Database Created With Room Shows No Tables When Opening With Sqlte-browser

How To Make A Typeconverter In Room From A Custom List?

I have made a TypeConverter but I get an error Unable to create converter for class .models.last… Read more How To Make A Typeconverter In Room From A Custom List?

Null Object Reference When I Try To Build Room

I want to build room in Kotlin using my function getDatabase(context) and I have this error : W/Sys… Read more Null Object Reference When I Try To Build Room

Oncreate() Of Roomdatabase.callback() Was Not Called After A Successful Call To .build()

I have created MovieDatabase using Room Persisdent lib. According to the documentation of onCreate(… Read more Oncreate() Of Roomdatabase.callback() Was Not Called After A Successful Call To .build()

How To Use Setbalance Method In My Entity To Set The Actual Balance Value Of A Member?

I use Android Room for my database. I have a title screen and when I click on a button there, my ac… Read more How To Use Setbalance Method In My Entity To Set The Actual Balance Value Of A Member?