Add Room to the App

Kotlin and Android Development featuring Jetpack — by Michael Fazio (39 / 125)

👈 Chapter 5 Persist Game Data with Room | TOC | Add a RoomDatabase Class 👉

This process should look familiar by now. We add a new value under the ext block in the project-level build.gradle file:

​   ext {
​     kotlin_version = ​'1.4.30'​
​     gradle_version = ​'4.1.2'​
​ 
​     app_compat_version = ​'1.2.0'​
​     constraint_layout_version = ​'2.0.4'​
​     core_version = ​'1.3.2'​
​     lc_version = ​'2.3.0'​
​     nav_version = ​'2.3.3'​
»    room_version = ​'2.3.0-beta01'​
​ }

We then add the library artifacts inside the dependencies in the app’s build.gradle file. We need to add three different dependencies to do what we want: one for the Room runtime, one for Kotlin extensions and coroutines support in Room, and one for annotation processing:

​ dependencies {
​   ​// Other dependencies still live up here.​
​ 
»  implementation ​"androidx.room:room-ktx:$room_version"​
»  implementation ​"androidx.room:room-runtime:$room_version"​
»
»  kapt ​"androidx.room:room-compiler:$room_version"​
​ }

With those added, sync your project and we can add the PennyDropDatabase to the app.

👈 Chapter 5 Persist Game Data with Room | TOC | Add a RoomDatabase Class 👉

Kotlin and Android Development featuring Jetpack by Michael Fazio can be purchased in other book formats directly from the Pragmatic Programmers. If you notice a code error or formatting mistake, please let us know here so that we can fix it.