Fix content padding issue

Author: jhansitavva

app/src/main/java/com/example/superheroes/HeroesScreen.kt

@@ -29,6 +29,7 @@ import androidx.compose.animation.slideInVertically
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -63,7 +64,8 @@ import com.example.superheroes.ui.theme.SuperheroesTheme
 fun HeroesList(
     heroes: List<Hero>,
     modifier: Modifier = Modifier,
-) {
+    contentPadding: PaddingValues = PaddingValues(0.dp),
+    ) {
     val visibleState = remember {
         MutableTransitionState(false).apply {
             // Start the animation immediately.
@@ -80,7 +82,7 @@ fun HeroesList(
         exit = fadeOut(),
         modifier = modifier
     ) {
-        LazyColumn {
+        LazyColumn(contentPadding = contentPadding) {
             itemsIndexed(heroes) { index, hero ->
                 HeroListItem(
                     hero = hero,

app/src/main/java/com/example/superheroes/MainActivity.kt

@@ -66,8 +66,7 @@ class MainActivity : ComponentActivity() {
             data source as a dependency and exposes heroes.
              */
             val heroes = HeroesRepository.heroes
-            HeroesList(heroes = heroes, Modifier.padding(it))
-
+            HeroesList(heroes = heroes, contentPadding = it)
         }
     }
 

app/src/main/java/com/example/superheroes/ui/theme/Theme.kt

@@ -137,12 +137,17 @@ private fun setUpEdgeToEdge(view: View, darkTheme: Boolean) {
     val window = (view.context as Activity).window
     WindowCompat.setDecorFitsSystemWindows(window, false)
     window.statusBarColor = Color.Transparent.toArgb()
-    val navigationBarColor = if (Build.VERSION.SDK_INT >= 26) {
-        Color.Transparent.toArgb()
-    }
-    else {
-        // Min sdk version for this app is 24, this block is for SDK versions 24 and 25
-        Color(0x63000000).toArgb()
+    val navigationBarColor = when {
+        Build.VERSION.SDK_INT >= 29 -> {
+            Color.Transparent.toArgb()
+        }
+        Build.VERSION.SDK_INT >= 26 -> {
+            Color(0x00, 0x00, 0x00, 0x63).toArgb()
+        }
+        else -> {
+            // Min sdk version for this app is 24, this block is for SDK versions 24 and 25
+            Color(0x50000000).toArgb()
+        }
     }
     window.navigationBarColor = navigationBarColor
     val controller = WindowCompat.getInsetsController(window, view)