Add video playback with exoplayer (#5)

* Media3 and Exoplayer setup

* Add video for exoplayer, make exoplayer fullscreen, change some visual details

* Moved exoplayer to ViewModel fixing playback restart on configuration change

* Added custom overlay for video

* Resize overlay to the same size as video

* Added slider for showing progress

* Added seeking and time

* Readme update

* Code reformatting

Author: retanar

.editorconfig

@@ -60,7 +60,6 @@ ij_kotlin_extends_list_wrap = normal
 ij_kotlin_field_annotation_wrap = split_into_lines
 ij_kotlin_finally_on_new_line = false
 ij_kotlin_if_rparen_on_new_line = true
-ij_kotlin_import_nested_classes = true
 ij_kotlin_imports_layout = *,java.**,javax.**,kotlin.**,^
 ij_kotlin_insert_whitespaces_in_simple_one_line_method = true
 ij_kotlin_keep_blank_lines_before_right_brace = 0

README.md

@@ -10,6 +10,10 @@ Splash screen
 
 <img src="readme_res/splash_screen_20240703.gif" width="480"/>
 
+Exoplayer video playback
+
+![exoplayer](readme_res/exoplayer_20241115.gif)
+
 ### Quick overview
 
 | Feature      | Short description  |

app/src/main/java/com/featuremodule/template/ui/AppNavBar.kt

@@ -7,6 +7,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource
 import androidx.navigation.NavDestination
 import androidx.navigation.NavDestination.Companion.hierarchy
+import com.featuremodule.core.navigation.HIDE_NAV_BAR
 import com.featuremodule.core.navigation.NavBarItems
 
 /**
@@ -24,6 +25,8 @@ internal fun AppNavBar(
     openNavBarRoute: (route: String, isSelected: Boolean) -> Unit,
     currentDestination: NavDestination?,
 ) {
+    if (currentDestination?.route.orEmpty().contains(HIDE_NAV_BAR)) return
+
     NavigationBar {
         NavBarItems.entries.forEach { item ->
             val isSelected = currentDestination?.hierarchy

core/src/main/java/com/featuremodule/core/navigation/NavUtils.kt

@@ -0,0 +1,4 @@
+package com.featuremodule.core.navigation
+
+/** Appended to the start of a route to sign that NavigationBar should be hidden */
+const val HIDE_NAV_BAR = "hide_nav_bar/"

core/src/main/java/com/featuremodule/core/util/ContextUtils.kt

@@ -0,0 +1,11 @@
+package com.featuremodule.core.util
+
+import android.app.Activity
+import android.content.Context
+import android.content.ContextWrapper
+
+tailrec fun Context.getActivity(): Activity? = when (this) {
+    is Activity -> this
+    is ContextWrapper -> baseContext.getActivity()
+    else -> null
+}

…ava/com/featuremodule/core/util/Utils.kt …com/featuremodule/core/util/FlowUtils.ktcore/src/main/java/com/featuremodule/core/util/Utils.kt renamed to core/src/main/java/com/featuremodule/core/util/FlowUtils.kt core/src/main/java/com/featuremodule/core/util/Utils.kt renamed to core/src/main/java/com/featuremodule/core/util/FlowUtils.kt

@@ -366,7 +366,7 @@ naming:
     packagePattern: '[a-z]+(\.[a-z][A-Za-z0-9]*)*'
   TopLevelPropertyNaming:
     active: true
-    constantPattern: '[A-Z][A-Za-z0-9]*'
+    constantPattern: '[A-Za-z][_A-Za-z0-9]*'
     propertyPattern: '[A-Za-z][_A-Za-z0-9]*'
     privatePropertyPattern: '_?[A-Za-z][_A-Za-z0-9]*'
   VariableMaxLength:

detekt-config.yml

@@ -9,4 +9,6 @@ android {
 dependencies {
     implementation(projects.feature.homeApi)
     implementation(projects.feature.featureAApi)
+
+    implementation(libs.bundles.exoplayer)
 }

feature/homeImpl/build.gradle.kts

@@ -2,11 +2,25 @@ package com.featuremodule.homeImpl
 
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.compose.composable
+import com.featuremodule.core.navigation.HIDE_NAV_BAR
 import com.featuremodule.homeApi.HomeDestination
+import com.featuremodule.homeImpl.exoplayer.ExoplayerScreen
 import com.featuremodule.homeImpl.ui.HomeScreen
 
 fun NavGraphBuilder.registerHome() {
     composable(HomeDestination.ROUTE) { backStackEntry ->
         HomeScreen(route = backStackEntry.destination.route)
     }
+
+    composable(InternalRoutes.ExoplayerDestination.ROUTE) {
+        ExoplayerScreen()
+    }
+}
+
+internal sealed class InternalRoutes {
+    object ExoplayerDestination {
+        const val ROUTE = HIDE_NAV_BAR + "exoplayer"
+
+        fun constructRoute() = ROUTE
+    }
 }

feature/homeImpl/src/main/java/com/featuremodule/homeImpl/HomeGraphEntry.kt

@@ -0,0 +1,22 @@
+package com.featuremodule.homeImpl.exoplayer
+
+import androidx.media3.exoplayer.ExoPlayer
+import com.featuremodule.core.ui.UiEvent
+import com.featuremodule.core.ui.UiState
+
+internal data class State(
+    val exoplayer: ExoPlayer,
+    val overlayState: OverlayState = OverlayState(),
+) : UiState
+
+internal data class OverlayState(
+    val showPlayButton: Boolean = false,
+    val title: String = "",
+    val contentPosition: Long = 0,
+    val contentDuration: Long = 0,
+)
+
+internal sealed interface Event : UiEvent {
+    data object OnPlayPauseClick : Event
+    data class OnSeekFinished(val position: Long) : Event
+}