style: tab bar

app/src/main/java/com/approagency/pharmacy/presentation/common/SegmentedTabBar.kt

@@ -0,0 +1,90 @@
+package com.approagency.pharmacy.presentation.common
+
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
+import com.vada.caller.ui.theme.dime
+
+/**
+ * نوار تب‌های سگمنتی: تبِ انتخاب‌شده به‌صورت یک «قرص» پررنگ نمایش داده می‌شود
+ * تا کاملاً قابل لمس و قابل‌تشخیص باشد. عرض همه‌ی تب‌ها برابر است.
+ */
+@Composable
+fun SegmentedTabBar(
+    tabs: List<String>,
+    selectedIndex: Int,
+    onSelected: (Int) -> Unit,
+    modifier: Modifier = Modifier
+) {
+    val dime = MaterialTheme.dime
+    Row(
+        modifier = modifier
+            .fillMaxWidth()
+            .clip(MaterialTheme.shapes.large)
+            .background(MaterialTheme.colorScheme.surfaceContainerHigh)
+            .padding(dime.xxs),
+        horizontalArrangement = Arrangement.spacedBy(dime.xxs)
+    ) {
+        tabs.forEachIndexed { index, title ->
+            val selected = index == selectedIndex
+
+            val background by animateColorAsState(
+                targetValue = if (selected) MaterialTheme.colorScheme.primary else Color.Transparent,
+                animationSpec = tween(durationMillis = 200),
+                label = "segmentBackground"
+            )
+            val foreground by animateColorAsState(
+                targetValue = if (selected)
+                    MaterialTheme.colorScheme.onPrimary
+                else
+                    MaterialTheme.colorScheme.onSurfaceVariant,
+                animationSpec = tween(durationMillis = 200),
+                label = "segmentForeground"
+            )
+
+            val interactionSource = remember { MutableInteractionSource() }
+
+            Box(
+                modifier = Modifier
+                    .weight(1f)
+                    .clip(MaterialTheme.shapes.medium)
+                    .background(background)
+                    .clickable(
+                        interactionSource = interactionSource,
+                        indication = null
+                    ) { onSelected(index) }
+                    .padding(vertical = dime.sm, horizontal = dime.xs),
+                contentAlignment = Alignment.Center
+            ) {
+                Text(
+                    text = title,
+                    style = MaterialTheme.typography.labelMedium,
+                    fontWeight = if (selected) FontWeight.Bold else FontWeight.Medium,
+                    color = foreground,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    textAlign = TextAlign.Center
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/approagency/pharmacy/presentation/screens/DrugDetailScreen.kt

@@ -14,8 +14,6 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Tab
-import androidx.compose.material3.TabRow
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
@@ -29,13 +27,13 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalLayoutDirection
-import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.LayoutDirection
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavController
 import com.approagency.pharmacy.presentation.common.ErrorState
 import com.approagency.pharmacy.presentation.common.Loading
+import com.approagency.pharmacy.presentation.common.SegmentedTabBar
 import com.approagency.pharmacy.presentation.components.drugdetail.BrandNamesTabContent
 import com.approagency.pharmacy.presentation.components.drugdetail.DosageFormsTabContent
 import com.approagency.pharmacy.presentation.components.drugdetail.GeneralInfoTabContent
@@ -140,26 +138,15 @@ fun DrugDetailScreen(
                                 )
                             }
 
-                            TabRow(
+                            SegmentedTabBar(
-                                selectedTabIndex = selectedTab,
+                                tabs = tabs,
-                                containerColor = MaterialTheme.colorScheme.surface,
+                                selectedIndex = selectedTab,
-                                contentColor = MaterialTheme.colorScheme.primary
+                                onSelected = { selectedTab = it },
-                            ) {
+                                modifier = Modifier.padding(
-                                tabs.forEachIndexed { index, title ->
+                                    horizontal = dime.md,
-                                    Tab(
+                                    vertical = dime.sm
-                                        selected = selectedTab == index,
+                                )
-                                        onClick = { selectedTab = index },
+                            )
-                                        text = {
-                                            Text(
-                                                text = title,
-                                                style = MaterialTheme.typography.labelLarge,
-                                                fontWeight = if (selectedTab == index) FontWeight.Bold else FontWeight.Normal,
-                                                maxLines = 1
-                                            )
-                                        }
-                                    )
-                                }
-                            }
 
                             LazyColumn(
                                 modifier = Modifier