ImageViewer notch (#2822)

experimental/examples/imageviewer/iosApp/iosApp/ContentView.swift

@@ -2,6 +2,17 @@ import UIKit
 import SwiftUI
 import shared
 
+let gradient = LinearGradient(
+        colors: [
+            Color.black.opacity(0.6),
+            Color.black.opacity(0.6),
+            Color.black.opacity(0.5),
+            Color.black.opacity(0.3),
+            Color.black.opacity(0.0),
+        ],
+        startPoint: .top, endPoint: .bottom
+)
+
 struct ComposeView: UIViewControllerRepresentable {
     func makeUIViewController(context: Context) -> UIViewController {
         Main_iosKt.MainViewController()
@@ -12,8 +23,14 @@ struct ComposeView: UIViewControllerRepresentable {
 
 struct ContentView: View {
     var body: some View {
-        ComposeView()
+        ZStack {
-                .ignoresSafeArea(.keyboard) // Compose has own keyboard handler
+            ComposeView()
+                    .ignoresSafeArea(.all) // Compose has own keyboard handler
+            VStack {
+                gradient.ignoresSafeArea(edges: .top).frame(height: 0)
+                Spacer()
+            }
+        }.preferredColorScheme(.dark)
     }
 }
 

experimental/examples/imageviewer/shared/src/androidMain/kotlin/example/imageviewer/plarfom.android.kt

@@ -0,0 +1,6 @@
+package example.imageviewer
+
+import androidx.compose.ui.Modifier
+import androidx.compose.foundation.layout.*
+
+actual fun Modifier.notchPadding(): Modifier = displayCutoutPadding().statusBarsPadding()

experimental/examples/imageviewer/shared/src/androidMain/kotlin/example/imageviewer/view/PreviewImage.android.kt

@@ -1,9 +0,0 @@
-package example.imageviewer.view
-
-import android.content.res.Configuration
-import androidx.compose.runtime.Composable
-import androidx.compose.ui.platform.LocalConfiguration
-
-@Composable
-internal actual fun needShowPreview(): Boolean =
-    LocalConfiguration.current.orientation == Configuration.ORIENTATION_PORTRAIT

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/ImageViewer.common.kt

@@ -80,8 +80,9 @@ internal fun ImageViewerCommon(
 
                 is MemoryPage -> {
                     MemoryScreen(
-                        page,
+                        memoryPage = page,
-                        photoGallery,
+                        photoGallery = photoGallery,
+                        localization = dependencies.localization,
                         onSelectRelatedMemory = { galleryId ->
                             navigationStack.push(MemoryPage(galleryId))
                         },

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/plarfom.common.kt

@@ -0,0 +1,5 @@
+package example.imageviewer
+
+import androidx.compose.ui.Modifier
+
+expect fun Modifier.notchPadding(): Modifier

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/CircularButton.kt

@@ -0,0 +1,29 @@
+package example.imageviewer.view
+
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.painter.Painter
+import androidx.compose.ui.unit.dp
+import example.imageviewer.style.ImageviewerColors
+
+@Composable
+internal fun CircularButton(image: Painter, onClick: () -> Unit) {
+    Box(
+        Modifier.size(40.dp).clip(CircleShape).background(ImageviewerColors.uiLightBlack)
+            .clickable { onClick() }, contentAlignment = Alignment.Center
+    ) {
+        Image(
+            image,
+            contentDescription = null,
+            modifier = Modifier.size(20.dp)
+        )
+    }
+}

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/FullscreenImage.kt

@@ -140,16 +140,8 @@ private fun FullscreenImageBar(
     selectedFilters: Set<FilterType>,
     onSelectFilter: (FilterType) -> Unit
 ) {
-    TopAppBar(
+    TopLayout(
-        modifier = Modifier.background(color = ImageviewerColors.fullScreenImageBackground),
+        alignLeftContent = {
-        colors = TopAppBarDefaults.smallTopAppBarColors(
-            containerColor = ImageviewerColors.Transparent,
-            titleContentColor = MaterialTheme.colorScheme.onBackground
-        ),
-        title = {
-            Text("${localization.picture} ${pictureName ?: "Unknown"}")
-        },
-        navigationIcon = {
             Tooltip(localization.back) {
                 CircularButton(
                     painterResource("arrowleft.png"),
@@ -157,6 +149,7 @@ private fun FullscreenImageBar(
                 )
             }
         },
+        alignRightContent = {},
     )
 }
 

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/GalleryScreen.kt

@@ -1,19 +1,11 @@
+@file:OptIn(ExperimentalResourceApi::class)
+
 package example.imageviewer.view
 
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.*
-import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.aspectRatio
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.grid.itemsIndexed
@@ -39,6 +31,7 @@ import example.imageviewer.model.GalleryId
 import example.imageviewer.model.GalleryPage
 import example.imageviewer.model.PhotoGallery
 import example.imageviewer.model.bigUrl
+import example.imageviewer.notchPadding
 import example.imageviewer.style.ImageviewerColors
 import org.jetbrains.compose.resources.ExperimentalResourceApi
 import org.jetbrains.compose.resources.painterResource
@@ -69,17 +62,19 @@ internal fun GalleryScreen(
 
     Column(modifier = Modifier.background(MaterialTheme.colorScheme.background)) {
         Box {
-            if (needShowPreview()) {
+            PreviewImage(
-                PreviewImage(
+                getImage = { dependencies.imageRepository.loadContent(it.bigUrl) },
-                    getImage = { dependencies.imageRepository.loadContent(it.bigUrl) },
+                picture = galleryPage.picture, onClick = {
-                    picture = galleryPage.picture, onClick = {
+                    galleryPage.pictureId?.let(onClickPreviewPicture)
-                        galleryPage.pictureId?.let(onClickPreviewPicture)
+                }
-                    })
+            )
-            }
+            TopLayout(
-            TitleBar(
+                alignLeftContent = {},
-                onRefresh = { photoGallery.updatePictures() },
+                alignRightContent = {
-                onToggle = { galleryPage.toggleGalleryStyle() },
+                    CircularButton(painterResource("list_view.png")) {
-                dependencies
+                        galleryPage.toggleGalleryStyle()
+                    }
+                },
             )
         }
         Box(Modifier.fillMaxSize(), contentAlignment = Alignment.BottomCenter) {
@@ -230,19 +225,3 @@ private fun ListGalleryView(
         }
     }
 }
-
-@OptIn(ExperimentalResourceApi::class, ExperimentalMaterial3Api::class)
-@Composable
-private fun TitleBar(onRefresh: () -> Unit, onToggle: () -> Unit, dependencies: Dependencies) {
-    TopAppBar(
-        modifier = Modifier.padding(start = 12.dp, end = 12.dp),
-        colors = TopAppBarDefaults.smallTopAppBarColors(
-            containerColor = ImageviewerColors.Transparent,
-            titleContentColor = MaterialTheme.colorScheme.onBackground
-        ),
-        title = {
-            Row(Modifier.height(50.dp).fillMaxWidth(), horizontalArrangement = Arrangement.End) {
-                CircularButton(painterResource("list_view.png")) { onToggle() }
-            }
-        })
-}

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/MemoryScreen.kt

@@ -3,25 +3,17 @@ package example.imageviewer.view
 import androidx.compose.animation.animateContentSize
 import androidx.compose.animation.core.Spring
 import androidx.compose.animation.core.spring
-import androidx.compose.foundation.*
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyRow
 import androidx.compose.foundation.lazy.itemsIndexed
-import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.LocalTextStyle
+import androidx.compose.material3.*
-import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.*
-import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBar
-import androidx.compose.material3.TopAppBarDefaults
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -30,12 +22,12 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.graphics.Shadow
 import androidx.compose.ui.graphics.graphicsLayer
-import androidx.compose.ui.graphics.painter.Painter
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import example.imageviewer.Localization
 import example.imageviewer.model.GalleryEntryWithMetadata
 import example.imageviewer.model.GalleryId
 import example.imageviewer.model.MemoryPage
@@ -49,6 +41,7 @@ import org.jetbrains.compose.resources.painterResource
 internal fun MemoryScreen(
     memoryPage: MemoryPage,
     photoGallery: PhotoGallery,
+    localization: Localization,
     onSelectRelatedMemory: (GalleryId) -> Unit,
     onBack: () -> Unit,
     onHeaderClick: (GalleryId) -> Unit
@@ -116,39 +109,20 @@ internal fun MemoryScreen(
                 }
             }
         }
-        TopAppBar(
+        TopLayout(
-            modifier = Modifier.padding(start = 12.dp, end = 12.dp),
+            alignLeftContent = {
-            colors = TopAppBarDefaults.smallTopAppBarColors(
+                Tooltip(localization.back) {
-                containerColor = ImageviewerColors.Transparent,
+                    CircularButton(
-                titleContentColor = MaterialTheme.colorScheme.onBackground
+                        painterResource("arrowleft.png"),
-            ),
+                        onClick = { onBack() }
-            title = {
+                    )
-                Text("")
-            },
-            navigationIcon = {
-                Tooltip("Back") {
-                    CircularButton(painterResource("arrowleft.png"), onClick = { onBack() })
                 }
             },
+            alignRightContent = {},
         )
     }
 }
 
-@Composable
-internal fun CircularButton(image: Painter, onClick: () -> Unit) {
-    Box(
-        Modifier.size(40.dp).clip(CircleShape).background(ImageviewerColors.uiLightBlack)
-            .clickable { onClick() }, contentAlignment = Alignment.Center
-    ) {
-        Image(
-            image,
-            contentDescription = null,
-            modifier = Modifier.size(20.dp)
-        )
-    }
-
-}
-
 @Composable
 private fun MemoryHeader(bitmap: ImageBitmap, onClick: () -> Unit) {
     val interactionSource = remember { MutableInteractionSource() }

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/PreviewImage.common.kt

@@ -8,6 +8,7 @@ import androidx.compose.animation.slideInHorizontally
 import androidx.compose.animation.slideOutHorizontally
 import androidx.compose.animation.with
 import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Spacer
@@ -22,6 +23,7 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.unit.dp
@@ -34,19 +36,13 @@ internal fun PreviewImage(
     onClick: () -> Unit,
     getImage: suspend (Picture) -> ImageBitmap
 ) {
-    var image by remember(picture) { mutableStateOf<ImageBitmap?>(null) }
+    Box(Modifier.fillMaxWidth().height(393.dp).background(Color.Black), contentAlignment = Alignment.Center) {
-    LaunchedEffect(picture) {
-        if (picture != null) {
-            image = getImage(picture)
-        }
-    }
-    Box(Modifier.fillMaxWidth().height(393.dp), contentAlignment = Alignment.Center) {
         Box(
             modifier = Modifier.fillMaxSize()
                 .clickable { onClick() },
         ) {
             AnimatedContent(
-                targetState = image,
+                targetState = picture,
                 transitionSpec = {
                     slideInHorizontally(
                         initialOffsetX = { it }, animationSpec = spring(
@@ -61,10 +57,16 @@ internal fun PreviewImage(
                     )
 //                    slideInVertically(initialOffsetY = { it }) with slideOutVertically(targetOffsetY = { -it })
                 }
-            ) { imageBitmap ->
+            ) { currentPicture ->
-                if (imageBitmap != null) {
+                var image by remember(currentPicture) { mutableStateOf<ImageBitmap?>(null) }
+                LaunchedEffect(currentPicture) {
+                    if (currentPicture != null) {
+                        image = getImage(currentPicture)
+                    }
+                }
+                if (image != null) {
                     Image(
-                        bitmap = imageBitmap,
+                        bitmap = image!!,
                         contentDescription = null,
                         modifier = Modifier
                             .fillMaxSize(),
@@ -80,8 +82,4 @@ internal fun PreviewImage(
         }
     }
 
-
 }
-
-@Composable
-internal expect fun needShowPreview(): Boolean

experimental/examples/imageviewer/shared/src/commonMain/kotlin/example/imageviewer/view/TopLayout.kt

@@ -0,0 +1,31 @@
+package example.imageviewer.view
+
+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.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import example.imageviewer.notchPadding
+
+@Composable
+internal fun TopLayout(
+    alignLeftContent: @Composable () -> Unit = {},
+    alignRightContent: @Composable () -> Unit = {},
+) {
+    Box(
+        Modifier
+            .fillMaxWidth()
+            .notchPadding()
+            .padding(horizontal = 12.dp)
+    ) {
+        Row(Modifier.align(Alignment.CenterStart)) {
+            alignLeftContent()
+        }
+        Row(Modifier.align(Alignment.CenterEnd)) {
+            alignRightContent()
+        }
+    }
+}

experimental/examples/imageviewer/shared/src/desktopMain/kotlin/example/imageviewer/plarfom.desktop.kt

@@ -0,0 +1,5 @@
+package example.imageviewer
+
+import androidx.compose.ui.Modifier
+
+actual fun Modifier.notchPadding(): Modifier = this

experimental/examples/imageviewer/shared/src/desktopMain/kotlin/example/imageviewer/view/PreviewImage.desktop.kt

@@ -1,6 +0,0 @@
-package example.imageviewer.view
-
-import androidx.compose.runtime.Composable
-
-@Composable
-internal actual fun needShowPreview(): Boolean = true

experimental/examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/platform.ios.kt

@@ -0,0 +1,29 @@
+package example.imageviewer
+
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.Density
+import androidx.compose.ui.unit.LayoutDirection
+import kotlinx.cinterop.useContents
+import platform.UIKit.UIApplication
+import platform.UIKit.safeAreaInsets
+
+private val iosNotchInset = object : WindowInsets {
+    override fun getTop(density: Density): Int {
+        val safeAreaInsets = UIApplication.sharedApplication.keyWindow?.safeAreaInsets
+        return if (safeAreaInsets != null) {
+            val topInset = safeAreaInsets.useContents { this.top }
+            (topInset * density.density).toInt()
+        } else {
+            0
+        }
+    }
+
+    override fun getLeft(density: Density, layoutDirection: LayoutDirection): Int = 0
+    override fun getRight(density: Density, layoutDirection: LayoutDirection): Int = 0
+    override fun getBottom(density: Density): Int = 0
+}
+
+actual fun Modifier.notchPadding(): Modifier =
+    this.windowInsetsPadding(iosNotchInset)

experimental/examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/view/PreviewImage.ios.kt

@@ -1,6 +0,0 @@
-package example.imageviewer.view
-
-import androidx.compose.runtime.Composable
-
-@Composable
-internal actual fun needShowPreview(): Boolean = true