Make the Adaptive Codelab edge-to-edge

Author: ashnohe

AdaptiveUiCodelab/app/src/main/java/com/example/reply/ui/MainActivity.kt

@@ -16,9 +16,11 @@
 
 package com.example.reply.ui
 
+import android.os.Build
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.activity.enableEdgeToEdge
 import androidx.activity.viewModels
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
@@ -34,6 +36,11 @@ class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        enableEdgeToEdge()
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
+            window.isNavigationBarContrastEnforced = false
+        }
+
         setContent {
             ReplyTheme {
                 val uiState by viewModel.uiState.collectAsStateWithLifecycle()

AdaptiveUiCodelab/app/src/main/java/com/example/reply/ui/ReplyListContent.kt

@@ -21,8 +21,12 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.asPaddingValues
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.safeContent
+import androidx.compose.foundation.layout.safeDrawing
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
@@ -55,7 +59,10 @@ fun ReplyListPane(
     onEmailClick: (Email) -> Unit,
     modifier: Modifier = Modifier
 ) {
-    LazyColumn(modifier = modifier.fillMaxWidth()) {
+    LazyColumn(
+        modifier = modifier.fillMaxWidth(),
+        contentPadding = WindowInsets.safeDrawing.asPaddingValues()
+    ) {
         item {
             ReplySearchBar(modifier = Modifier.fillMaxWidth())
         }
@@ -73,7 +80,10 @@ fun ReplyDetailPane(
     email: Email,
     modifier: Modifier = Modifier
 ) {
-    LazyColumn(modifier = modifier.fillMaxWidth()) {
+    LazyColumn(
+        modifier = modifier.fillMaxWidth(),
+        contentPadding = WindowInsets.safeDrawing.asPaddingValues()
+    ) {
         item {
             ReplyEmailThreadItem(email)
         }
@@ -156,13 +166,13 @@ fun ReplyEmailThreadItem(
     modifier: Modifier = Modifier
 ) {
     Card(
-        modifier = modifier.padding(horizontal = 16.dp, vertical = 4.dp),
+        modifier = modifier.padding(horizontal = 16.dp),
         colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface)
     ) {
         Column(
             modifier = Modifier
                 .fillMaxWidth()
-                .padding(20.dp)
+                .padding(horizontal = 20.dp)
         ) {
             Row(modifier = Modifier.fillMaxWidth()) {
                 ReplyProfileImage(
@@ -264,7 +274,7 @@ fun ReplySearchBar(modifier: Modifier = Modifier) {
     Row(
         modifier = modifier
             .fillMaxWidth()
-            .padding(16.dp)
+            .padding(horizontal = 16.dp)
             .background(MaterialTheme.colorScheme.surface, CircleShape),
         verticalAlignment = Alignment.CenterVertically
     ) {

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

@@ -16,7 +16,6 @@
 
 package com.example.reply.ui.theme
 
-import android.app.Activity
 import android.os.Build
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.material3.MaterialTheme
@@ -25,11 +24,7 @@ import androidx.compose.material3.dynamicDarkColorScheme
 import androidx.compose.material3.dynamicLightColorScheme
 import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.SideEffect
-import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.platform.LocalView
-import androidx.core.view.ViewCompat
 
 // Material 3 color schemes
 private val replyDarkColorScheme = darkColorScheme(
@@ -104,13 +99,6 @@ fun ReplyTheme(
         darkTheme -> replyDarkColorScheme
         else -> replyLightColorScheme
     }
-    val view = LocalView.current
-    if (!view.isInEditMode) {
-        SideEffect {
-            (view.context as Activity).window.statusBarColor = replyColorScheme.primary.toArgb()
-            ViewCompat.getWindowInsetsController(view)?.isAppearanceLightStatusBars = darkTheme
-        }
-    }
 
     MaterialTheme(
         colorScheme = replyColorScheme,