Blur effect on home screen (iOS 26) (#9935)

src/Navigation.tsx

@@ -138,7 +138,7 @@ import {
 } from '#/components/dialogs/EmailDialog'
 import {useAnalytics} from '#/analytics'
 import {setNavigationMetadata} from '#/analytics/metadata'
-import {IS_NATIVE, IS_WEB} from '#/env'
+import {IS_LIQUID_GLASS, IS_NATIVE, IS_WEB} from '#/env'
 import {router} from '#/routes'
 import {Referrer} from '../modules/expo-bluesky-swiss-army'
 
@@ -685,10 +685,29 @@ function screenOptions(t: Theme) {
 function HomeTabNavigator() {
   const t = useTheme()
 
+  const BLURRED_SCROLL_EDGE_EFFECT = IS_LIQUID_GLASS
+    ? ({
+        headerShown: true,
+        headerTransparent: true,
+        headerTitle: '',
+        scrollEdgeEffects: {
+          top: 'soft',
+        },
+      } as const)
+    : {}
+
   return (
     <HomeTab.Navigator screenOptions={screenOptions(t)} initialRouteName="Home">
-      <HomeTab.Screen name="Home" getComponent={() => HomeScreen} />
-      <HomeTab.Screen name="Start" getComponent={() => HomeScreen} />
+      <HomeTab.Screen
+        name="Home"
+        getComponent={() => HomeScreen}
+        options={BLURRED_SCROLL_EDGE_EFFECT}
+      />
+      <HomeTab.Screen
+        name="Start"
+        getComponent={() => HomeScreen}
+        options={BLURRED_SCROLL_EDGE_EFFECT}
+      />
       {commonScreens(HomeTab as typeof Flat)}
     </HomeTab.Navigator>
   )

src/components/hooks/useHeaderOffset.ts

@@ -1,14 +1,17 @@
 import {useWindowDimensions} from 'react-native'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
 
-import {useWebMediaQueries} from '#/lib/hooks/useWebMediaQueries'
+import {useBreakpoints} from '#/alf'
+import {IS_LIQUID_GLASS} from '#/env'
 
 export function useHeaderOffset() {
-  const {isDesktop, isTablet} = useWebMediaQueries()
+  const {gtMobile} = useBreakpoints()
   const {fontScale} = useWindowDimensions()
-  if (isDesktop || isTablet) {
+  const insets = useSafeAreaInsets()
+  if (gtMobile) {
     return 0
   }
-  const navBarHeight = 52
+  const navBarHeight = 52 + (IS_LIQUID_GLASS ? insets.top : 0)
   const tabBarPad = 10 + 10 + 3 // padding + border
   const normalLineHeight = 20 // matches tab bar
   const tabBarText = normalLineHeight * fontScale

src/lib/hooks/useMinimalShellTransform.ts

@@ -1,13 +1,18 @@
 import {interpolate, useAnimatedStyle} from 'react-native-reanimated'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
 
 import {useMinimalShellMode} from '#/state/shell/minimal-mode'
 import {useShellLayout} from '#/state/shell/shell-layout'
+import {IS_LIQUID_GLASS} from '#/env'
 
 // Keep these separated so that we only pay for useAnimatedStyle that gets used.
 
 export function useMinimalShellHeaderTransform() {
   const {headerMode} = useMinimalShellMode()
   const {headerHeight} = useShellLayout()
+  const {top: topInset} = useSafeAreaInsets()
+
+  const headerPinnedHeight = IS_LIQUID_GLASS ? topInset : 0
 
   const headerTransform = useAnimatedStyle(() => {
     const headerModeValue = headerMode.get()
@@ -19,7 +24,7 @@ export function useMinimalShellHeaderTransform() {
           translateY: interpolate(
             headerModeValue,
             [0, 1],
-            [0, -headerHeight.get()],
+            [0, headerPinnedHeight - headerHeight.get()],
           ),
         },
       ],

src/view/com/home/HomeHeaderLayoutMobile.tsx

@@ -1,6 +1,6 @@
-import {type JSX} from 'react'
 import {View} from 'react-native'
 import Animated from 'react-native-reanimated'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
 import {msg} from '@lingui/core/macro'
 import {useLingui} from '@lingui/react'
 
@@ -17,16 +17,18 @@ import {ButtonIcon} from '#/components/Button'
 import {Hashtag_Stroke2_Corner0_Rounded as FeedsIcon} from '#/components/icons/Hashtag'
 import * as Layout from '#/components/Layout'
 import {Link} from '#/components/Link'
+import {IS_LIQUID_GLASS} from '#/env'
 
 export function HomeHeaderLayoutMobile({
   children,
 }: {
   children: React.ReactNode
-  tabBarAnchor: JSX.Element | null | undefined
+  tabBarAnchor: React.ReactElement | null | undefined
 }) {
   const t = useTheme()
   const {_} = useLingui()
   const {headerHeight} = useShellLayout()
+  const insets = useSafeAreaInsets()
   const headerMinimalShellTransform = useMinimalShellHeaderTransform()
   const {hasSession} = useSession()
   const playHaptic = useHaptics()
@@ -42,6 +44,7 @@ export function HomeHeaderLayoutMobile({
           left: 0,
           right: 0,
         },
+        IS_LIQUID_GLASS && {paddingTop: insets.top},
         headerMinimalShellTransform,
       ]}
       onLayout={e => {

src/view/com/util/MainScrollProvider.tsx

@@ -6,18 +6,21 @@ import {
   useSharedValue,
   withSpring,
 } from 'react-native-reanimated'
+import {useSafeAreaInsets} from 'react-native-safe-area-context'
 import EventEmitter from 'eventemitter3'
 
 import {ScrollProvider} from '#/lib/ScrollContext'
 import {useMinimalShellMode} from '#/state/shell'
 import {useShellLayout} from '#/state/shell/shell-layout'
-import {IS_NATIVE, IS_WEB} from '#/env'
+import {IS_LIQUID_GLASS, IS_NATIVE, IS_WEB} from '#/env'
 
 const WEB_HIDE_SHELL_THRESHOLD = 200
 
 export function MainScrollProvider({children}: {children: React.ReactNode}) {
   const {headerHeight} = useShellLayout()
   const {headerMode} = useMinimalShellMode()
+  const {top: topInset} = useSafeAreaInsets()
+  const headerPinnedHeight = IS_LIQUID_GLASS ? topInset : 0
   const startDragOffset = useSharedValue<number | null>(null)
   const startMode = useSharedValue<number | null>(null)
   const didJustRestoreScroll = useSharedValue<boolean>(false)
@@ -126,9 +129,10 @@ export function MainScrollProvider({children}: {children: React.ReactNode}) {
         // The "mode" value is always between 0 and 1.
         // Figure out how much to move it based on the current dragged distance.
         const dy = offsetY - startDragOffsetValue
+        const hideDistance = headerHeight.get() - headerPinnedHeight
         const dProgress = interpolate(
           dy,
-          [-headerHeight.get(), headerHeight.get()],
+          [-hideDistance, hideDistance],
           [-1, 1],
         )
         const newValue = clamp(startModeValue + dProgress, 0, 1)
@@ -156,6 +160,7 @@ export function MainScrollProvider({children}: {children: React.ReactNode}) {
     },
     [
       headerHeight,
+      headerPinnedHeight,
       headerMode,
       setMode,
       startDragOffset,

src/view/screens/Home.tsx

@@ -36,7 +36,7 @@ import {FollowingEndOfFeed} from '#/view/com/posts/FollowingEndOfFeed'
 import {NoFeedsPinned} from '#/screens/Home/NoFeedsPinned'
 import * as Layout from '#/components/Layout'
 import {useAnalytics} from '#/analytics'
-import {IS_WEB} from '#/env'
+import {IS_LIQUID_GLASS, IS_WEB} from '#/env'
 import {useDemoMode} from '#/storage/hooks/demo-mode'
 
 type Props = NativeStackScreenProps<HomeTabNavigatorParams, 'Home' | 'Start'>
@@ -79,7 +79,7 @@ export function HomeScreen(props: Props) {
 
   if (preferences && pinnedFeedInfos && !isPinnedFeedsLoading) {
     return (
-      <Layout.Screen testID="HomeScreen">
+      <Layout.Screen testID="HomeScreen" noInsetTop={IS_LIQUID_GLASS}>
         <HomeScreenReady
           {...props}
           preferences={preferences}