Modo is navigation library for Jetpack Compose based on UDF principles for developing Single Activity applications.
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Basic navigation | MultiScreen navigation | Nested navigation |
NavigationState
defines UI- UDF Navigation
- There are Screen and ContainerScreen
- ContainerScreen can contains nad render child screens
- There are several build in implementation of ContainerScreen like StackScreen and MultiScreen
- Whole navigation is Graph
NavigationState
can be changed by only bydispatch(action)
- You can easily extent existed commands by creating custom Actions and Reducers
The best way to lear the library is discovering sample application. You can add Modo into your project doing folowing steps
- Add gradle dependency. In your
build.gradle.kts
plugins { //... //for serialization screens id("kotlin-parcelize") } dependencies { implementation("com.github.terrakok:modo-compose:${latest_version}") }
- Create your own stack screen
@Parcelize class SampleStack( private val stackNavModel: StackNavModel ) : StackScreen(stackNavModel) { constructor(rootScreen: Screen) : this(StackNavModel(rootScreen)) @Composable override fun Content() { TopScreenContent { SlideTransition() } } }
- Create simple screen
@Parcelize class SampleScreen( override val screenKey: ScreenKey = generateScreenKey() ) : Screen { @Composable override fun Content() { Text(text = "Hello world", modifier = Modifier.fillMaxSize()) } }
- Integrate screen with your
- For Activity
class AppActivity : AppCompatActivity() { private var rootScreen: StackScreen? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) rootScreen = Modo.init(savedInstanceState, rootScreen) { SampleStack(SampleScreen(1)) } setContent { Surface(color = MaterialTheme.colors.background) { rootScreen?.Content() } } } override fun onSaveInstanceState(outState: Bundle) { Modo.save(outState, rootScreen) super.onSaveInstanceState(outState) } }
- For Fragment
internal class ModoRootFragment : Fragment() { private var rootScreen: ModoStackScreen? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) rootScreen = Modo.init(savedInstanceState, rootScreen) { ModoStackScreen() } } override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View = ComposeView(requireContext()).apply { setContent { rootScreen?.Content() } } override fun onSaveInstanceState(outState: Bundle) { super.onSaveInstanceState(outState) Modo.save(outState, rootScreen) } }
- For Activity
You can implement container screen by your own, but Modo provides several default containers
- StackScreen - stack navigation implementation
- Multiscreen - multiscreen navigation
Check out sample for more.
MIT License
Copyright (c) Konstantin Tskhovrebov (@terrakok)
and Karenkov Igor (@KarenkovID)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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copies of the Software, and to permit persons to whom the Software is
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The above copyright notice and this permission notice shall be included in all
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