Fix transition animation

app/src/main/java/com/sadellie/unitto/UnittoNavigation.kt

@@ -18,6 +18,8 @@
 
 package com.sadellie.unitto
 
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
 import androidx.compose.foundation.background
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
@@ -43,7 +45,9 @@ internal fun UnittoNavigation(
     NavHost(
         navController = navController,
         startDestination = startDestination,
-        modifier = Modifier.background(MaterialTheme.colorScheme.background)
+        modifier = Modifier.background(MaterialTheme.colorScheme.background),
+        enterTransition = { fadeIn() },
+        exitTransition = { fadeOut() }
     ) {
         converterGraph(
             openDrawer = openDrawer,

core/ui/build.gradle.kts

@@ -41,5 +41,7 @@ dependencies {
     testImplementation(libs.androidx.compose.ui.test.junit4)
     debugImplementation(libs.androidx.compose.ui.test.manifest)
 
+    implementation(libs.androidx.navigation)
+
     implementation(project(mapOf("path" to ":core:base")))
 }

core/ui/src/main/java/com/sadellie/unitto/core/ui/NavGraphBuilderExtensions.kt

@@ -0,0 +1,93 @@
+/*
+ * Unitto is a unit converter for Android
+ * Copyright (c) 2023 Elshan Agaev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.sadellie.unitto.core.ui
+
+import androidx.compose.animation.AnimatedContentScope
+import androidx.compose.animation.AnimatedContentTransitionScope
+import androidx.compose.animation.EnterTransition
+import androidx.compose.animation.ExitTransition
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.runtime.Composable
+import androidx.navigation.NamedNavArgument
+import androidx.navigation.NavBackStackEntry
+import androidx.navigation.NavDeepLink
+import androidx.navigation.NavGraphBuilder
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.navigation
+
+/**
+ * @see NavGraphBuilder.composable
+ */
+fun NavGraphBuilder.unittoComposable(
+    route: String,
+    arguments: List<NamedNavArgument> = emptyList(),
+    deepLinks: List<NavDeepLink> = emptyList(),
+    enterTransition: (@JvmSuppressWildcards
+    AnimatedContentTransitionScope<NavBackStackEntry>.() -> EnterTransition?)? = { fadeIn() },
+    exitTransition: (@JvmSuppressWildcards
+    AnimatedContentTransitionScope<NavBackStackEntry>.() -> ExitTransition?)? = { fadeOut() },
+    popEnterTransition: (@JvmSuppressWildcards
+    AnimatedContentTransitionScope<NavBackStackEntry>.() -> EnterTransition?)? =
+        enterTransition,
+    popExitTransition: (@JvmSuppressWildcards
+    AnimatedContentTransitionScope<NavBackStackEntry>.() -> ExitTransition?)? =
+        exitTransition,
+    content: @Composable AnimatedContentScope.(NavBackStackEntry) -> Unit
+): Unit = composable(
+    route = route,
+    arguments = arguments,
+    deepLinks = deepLinks,
+    enterTransition = enterTransition,
+    exitTransition = exitTransition,
+    popEnterTransition = popEnterTransition,
+    popExitTransition = popExitTransition,
+    content = content,
+)
+
+/**
+ * @see NavGraphBuilder.navigation
+ */
+fun NavGraphBuilder.unittoNavigation(
+    startDestination: String,
+    route: String,
+    arguments: List<NamedNavArgument> = emptyList(),
+    deepLinks: List<NavDeepLink> = emptyList(),
+    enterTransition: (AnimatedContentTransitionScope<NavBackStackEntry>.() -> EnterTransition?)? =
+        null,
+    exitTransition: (AnimatedContentTransitionScope<NavBackStackEntry>.() -> ExitTransition?)? =
+        null,
+    popEnterTransition: (
+    AnimatedContentTransitionScope<NavBackStackEntry>.() -> EnterTransition?
+    )? = enterTransition,
+    popExitTransition: (
+    AnimatedContentTransitionScope<NavBackStackEntry>.() -> ExitTransition?
+    )? = exitTransition,
+    builder: NavGraphBuilder.() -> Unit
+): Unit = navigation(
+    startDestination = startDestination,
+    route = route,
+    arguments = arguments,
+    deepLinks = deepLinks,
+    enterTransition = enterTransition,
+    exitTransition = exitTransition,
+    popEnterTransition = popEnterTransition,
+    popExitTransition = popExitTransition,
+    builder = builder
+)

feature/calculator/src/main/java/com/sadellie/unitto/feature/calculator/navigation/CalculatorNavigation.kt

@@ -19,10 +19,10 @@
 package com.sadellie.unitto.feature.calculator.navigation
 
 import androidx.navigation.NavGraphBuilder
-import androidx.navigation.compose.composable
-import androidx.navigation.compose.navigation
 import androidx.navigation.navDeepLink
 import com.sadellie.unitto.core.base.TopLevelDestinations
+import com.sadellie.unitto.core.ui.unittoComposable
+import com.sadellie.unitto.core.ui.unittoNavigation
 import com.sadellie.unitto.feature.calculator.CalculatorRoute
 
 private val graph = TopLevelDestinations.Calculator.graph
@@ -32,14 +32,14 @@ fun NavGraphBuilder.calculatorGraph(
     navigateToMenu: () -> Unit,
     navigateToSettings: () -> Unit
 ) {
-    navigation(
+    unittoNavigation(
         startDestination = start,
         route = graph,
         deepLinks = listOf(
             navDeepLink { uriPattern = "app://com.sadellie.unitto/$graph" }
         )
     ) {
-        composable(start) {
+        unittoComposable(start) {
             CalculatorRoute(
                 navigateToMenu = navigateToMenu,
                 navigateToSettings = navigateToSettings

feature/converter/src/main/java/com/sadellie/unitto/feature/converter/navigation/ConverterNavigation.kt

@@ -22,10 +22,10 @@ import androidx.compose.runtime.remember
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.NavHostController
-import androidx.navigation.compose.composable
-import androidx.navigation.compose.navigation
 import androidx.navigation.navDeepLink
 import com.sadellie.unitto.core.base.TopLevelDestinations
+import com.sadellie.unitto.core.ui.unittoComposable
+import com.sadellie.unitto.core.ui.unittoNavigation
 import com.sadellie.unitto.feature.converter.ConverterRoute
 import com.sadellie.unitto.feature.converter.ConverterViewModel
 import com.sadellie.unitto.feature.converter.LeftSideRoute
@@ -42,14 +42,14 @@ fun NavGraphBuilder.converterGraph(
     navigateToSettings: () -> Unit,
     navigateToUnitGroups: () -> Unit,
 ) {
-    navigation(
+    unittoNavigation(
         startDestination = start,
         route = graph,
         deepLinks = listOf(
             navDeepLink { uriPattern = "app://com.sadellie.unitto/$graph" }
         )
     ) {
-        composable(start) { backStackEntry ->
+        unittoComposable(start) { backStackEntry ->
             val parentEntry = remember(backStackEntry) {
                 navController.getBackStackEntry(graph)
             }
@@ -65,7 +65,7 @@ fun NavGraphBuilder.converterGraph(
             )
         }
 
-        composable(LEFT) { backStackEntry ->
+        unittoComposable(LEFT) { backStackEntry ->
             val parentEntry = remember(backStackEntry) {
                 navController.getBackStackEntry(graph)
             }
@@ -79,7 +79,7 @@ fun NavGraphBuilder.converterGraph(
             )
         }
 
-        composable(RIGHT) { backStackEntry ->
+        unittoComposable(RIGHT) { backStackEntry ->
             val parentEntry = remember(backStackEntry) {
                 navController.getBackStackEntry(graph)
             }

feature/datecalculator/src/main/java/com/sadellie/unitto/feature/datecalculator/navigation/DateCalculatorNavigation.kt

@@ -19,10 +19,10 @@
 package com.sadellie.unitto.feature.datecalculator.navigation
 
 import androidx.navigation.NavGraphBuilder
-import androidx.navigation.compose.composable
-import androidx.navigation.compose.navigation
 import androidx.navigation.navDeepLink
 import com.sadellie.unitto.core.base.TopLevelDestinations
+import com.sadellie.unitto.core.ui.unittoComposable
+import com.sadellie.unitto.core.ui.unittoNavigation
 import com.sadellie.unitto.feature.datecalculator.DateCalculatorRoute
 
 private val graph = TopLevelDestinations.DateCalculator.graph
@@ -32,14 +32,14 @@ fun NavGraphBuilder.dateCalculatorGraph(
     navigateToMenu: () -> Unit,
     navigateToSettings: () -> Unit
 ) {
-    navigation(
+    unittoNavigation(
         startDestination = start,
         route = graph,
         deepLinks = listOf(
             navDeepLink { uriPattern = "app://com.sadellie.unitto/$graph" }
         )
     ) {
-        composable(start) {
+        unittoComposable(start) {
             DateCalculatorRoute(
                 navigateToMenu = navigateToMenu,
                 navigateToSettings = navigateToSettings

feature/settings/src/main/java/com/sadellie/unitto/feature/settings/navigation/SettingsNavigation.kt

@@ -21,10 +21,10 @@ package com.sadellie.unitto.feature.settings.navigation
 import androidx.navigation.NavController
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.NavHostController
-import androidx.navigation.compose.composable
-import androidx.navigation.compose.navigation
 import androidx.navigation.navDeepLink
 import com.sadellie.unitto.core.base.TopLevelDestinations
+import com.sadellie.unitto.core.ui.unittoComposable
+import com.sadellie.unitto.core.ui.unittoNavigation
 import com.sadellie.unitto.feature.settings.SettingsRoute
 import com.sadellie.unitto.feature.settings.about.AboutScreen
 import com.sadellie.unitto.feature.settings.calculator.CalculatorSettingsScreen
@@ -57,60 +57,60 @@ fun NavGraphBuilder.settingGraph(
     themmoController: ThemmoController,
     navController: NavHostController,
 ) {
-    navigation(
+    unittoNavigation(
         startDestination = start,
         route = graph,
         deepLinks = listOf(
             navDeepLink { uriPattern = "app://com.sadellie.unitto/$graph" }
         )
     ) {
-        composable(start) {
+        unittoComposable(start) {
             SettingsRoute(
                 menuButtonClick = navController::navigateUp,
                 navControllerAction = navController::navigate
             )
         }
 
-        composable(themesRoute) {
+        unittoComposable(themesRoute) {
             ThemesRoute(
                 navigateUpAction = navController::navigateUp,
                 themmoController = themmoController,
             )
         }
 
-        composable(formattingRoute) {
+        unittoComposable(formattingRoute) {
             FormattingRoute(
                 navigateUpAction = navController::navigateUp
             )
         }
 
-        composable(calculatorSettingsRoute) {
+        unittoComposable(calculatorSettingsRoute) {
             CalculatorSettingsScreen(
                 navigateUpAction = navController::navigateUp,
             )
         }
 
-        composable(converterSettingsRoute) {
+        unittoComposable(converterSettingsRoute) {
             ConverterSettingsScreen(
                 navigateUpAction = navController::navigateUp,
                 navigateToUnitsGroup = { navController.navigate(unitsGroupRoute) }
             )
         }
 
-        composable(unitsGroupRoute) {
+        unittoComposable(unitsGroupRoute) {
             UnitGroupsScreen(
                 navigateUpAction = navController::navigateUp,
             )
         }
 
-        composable(aboutRoute) {
+        unittoComposable(aboutRoute) {
             AboutScreen(
                 navigateUpAction = navController::navigateUp,
                 navigateToThirdParty = { navController.navigate(thirdPartyRoute) }
             )
         }
 
-        composable(thirdPartyRoute) {
+        unittoComposable(thirdPartyRoute) {
             ThirdPartyLicensesScreen(
                 navigateUpAction = navController::navigateUp,
             )

feature/timezone/src/main/java/com/sadellie/unitto/timezone/navigation/TimeZoneNavigation.kt

@@ -22,11 +22,11 @@ import androidx.navigation.NavController
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.NavHostController
 import androidx.navigation.NavType
-import androidx.navigation.compose.composable
-import androidx.navigation.compose.navigation
 import androidx.navigation.navArgument
 import androidx.navigation.navDeepLink
 import com.sadellie.unitto.core.base.TopLevelDestinations
+import com.sadellie.unitto.core.ui.unittoComposable
+import com.sadellie.unitto.core.ui.unittoNavigation
 import com.sadellie.unitto.timezone.AddTimeZoneRoute
 import com.sadellie.unitto.timezone.TimeZoneRoute
 import java.time.ZonedDateTime
@@ -52,14 +52,14 @@ fun NavGraphBuilder.timeZoneGraph(
     navigateToSettings: () -> Unit,
     navController: NavHostController,
 ) {
-    navigation(
+    unittoNavigation(
         startDestination = start,
         route = graph,
         deepLinks = listOf(
             navDeepLink { uriPattern = "app://com.sadellie.unitto/$graph" }
         )
     ) {
-        composable(start) {
+        unittoComposable(start) {
             TimeZoneRoute(
                 navigateToMenu = navigateToMenu,
                 navigateToSettings = navigateToSettings,
@@ -67,7 +67,7 @@ fun NavGraphBuilder.timeZoneGraph(
             )
         }
 
-        composable(
+        unittoComposable(
             route = "$ADD_TIME_ZONE_ROUTE/{$USER_TIME_ARG}",
             arguments = listOf(
                 navArgument(USER_TIME_ARG) {