A small code generating library, that generates boilerplate code for defining your Navigation Graph, setting up TopAppBar, and BottomNavigation in Jetpack Compose.

• Removes code duplication when describing your routes through out the application.
• Removes code for setting up bottom and top navigation.

in your project level build.gradle

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}	
}

And then in you app level build.gradle

dependencies { 
  // KSP processor
  ksp("com.github.nicholasmata.architect:compiler:1.0.0-alpha")

  implementation("com.github.nicholasmata.architect:annotations:1.0.0-alpha")
  implementation("com.github.nicholasmata.architect:core:1.0.0-alpha")
}

applicationVariants.all { variant ->
    kotlin.sourceSets {
        getByName(variant.name) {
            kotlin.srcDir("build/generated/ksp/${variant.name}/kotlin")
        }
    }
}

At the core of the Architect there is a @Route annotation. This annotation is used to describe your composable destination. Here is the basic setup for the Profile Screen

@Route(route = "profile", title = "Profile")
@Composable
fun ProfileScreen() {
    /** your screen */
}

After you build the project, Architect will generate multiple files based on the @Route annotations. These files now fully describe your Routes and can be used to describe you navigation graph easier and to navigate from one Route to another, and setup Tab bar.

class MainActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            Architect(
                tabs = Tab.values().toList(),
                screenGraph = ScreenGraph()
            )
        }
    }
}

enum class Tab(
    override val id: String,
    override val title: String,
    override val start: ArchitectScreen,
    override val icon: ImageVector,
    override var navState: Bundle = Bundle()
) : ArchitectTab {
    Profile(id = "profile", title = "Profile", start = Screen.Profile, icon = Icons.Default.Person)
}