Examples for blogpost

examples/imageviewer/desktopApp/src/jvmMain/kotlin/example/imageviewer/Main.kt

@@ -1,8 +1,86 @@
 package example.imageviewer
 
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.awt.ComposePanel
+import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.window.application
 import example.imageviewer.view.ImageViewerDesktop
+import java.awt.Color.CYAN
+import java.awt.Graphics
+import java.awt.Graphics2D
+import javax.swing.JComponent
+import javax.swing.JFrame
+import javax.swing.JLayeredPane
+import javax.swing.JLayeredPane.DEFAULT_LAYER
+import javax.swing.JLayeredPane.POPUP_LAYER
+import javax.swing.JPanel
+import javax.swing.JSplitPane
+import javax.swing.OverlayLayout
+import javax.swing.SwingUtilities
 
 fun main() = application {
     ImageViewerDesktop()
 }
+
+fun main2() {
+    System.setProperty("compose.swing.render.on.graphics", "true")
+    SwingUtilities.invokeLater {
+        val composePanel = ComposePanel().apply {
+            setContent {
+                Box(modifier = Modifier.background(Color.Black).fillMaxSize())
+            }
+        }
+
+
+        val popup = object : JComponent() {
+            init {
+                isOpaque = false
+            }
+
+            override fun paintComponent(g: Graphics?) {
+                val scratchGraphics = g?.create() as? Graphics2D ?: return
+                try {
+                    scratchGraphics.color = java.awt.Color.WHITE
+                    scratchGraphics.fillRoundRect(5, 5, 90, 50, 16, 16)
+
+                    scratchGraphics.color = java.awt.Color.BLACK
+                    scratchGraphics.drawString("Popup", 30, 30)
+                } finally {
+                    scratchGraphics.dispose()
+                }
+            }
+        }
+
+
+        val rightPanel = JLayeredPane()
+        rightPanel.layout = OverlayLayout(rightPanel)
+        rightPanel.add(composePanel)
+        rightPanel.add(popup)
+
+        rightPanel.setLayer(composePanel, DEFAULT_LAYER)
+        rightPanel.setLayer(popup, POPUP_LAYER)
+
+
+        val leftPanel = JPanel().apply { background = CYAN }
+
+
+        val splitter = JSplitPane(
+            JSplitPane.HORIZONTAL_SPLIT,
+            true,
+            leftPanel,
+            rightPanel
+        ).apply {
+            setDividerLocation(500)
+        }
+
+
+        JFrame().apply {
+            add(splitter)
+            setSize(600, 600)
+            isVisible = true
+        }
+    }
+}

examples/imageviewer/iosApp/iosApp/ContentView.swift

@@ -7,10 +7,6 @@ struct ContentView: View {
         ZStack {
             ComposeView()
                     .ignoresSafeArea(.all) // Compose has own keyboard handler
-            VStack {
-                gradient.ignoresSafeArea(edges: .top).frame(height: 0)
-                Spacer()
-            }
         }.preferredColorScheme(.dark)
     }
 }

examples/imageviewer/shared/build.gradle.kts

@@ -31,6 +31,7 @@ kotlin {
                 implementation(compose.runtime)
                 implementation(compose.foundation)
                 implementation(compose.material)
+                implementation(compose.material3)
                 //implementation(compose.materialIconsExtended) // TODO not working on iOS for now
                 @OptIn(org.jetbrains.compose.ExperimentalComposeLibrary::class)
                 implementation(compose.components.resources)

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

@@ -1,13 +1,34 @@
 package example.imageviewer
 
-import androidx.compose.animation.*
+import androidx.compose.foundation.background
-import androidx.compose.animation.core.tween
+import androidx.compose.foundation.layout.Box
-import androidx.compose.runtime.*
+import androidx.compose.foundation.layout.Column
-import androidx.compose.runtime.saveable.listSaver
+import androidx.compose.foundation.layout.WindowInsets
-import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.runtime.snapshots.SnapshotStateList
+import androidx.compose.foundation.layout.padding
-import example.imageviewer.model.*
+import androidx.compose.foundation.layout.safeContent
-import example.imageviewer.view.*
+import androidx.compose.foundation.layout.windowInsetsPadding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 
 enum class ExternalImageViewerEvent {
     Next,
@@ -19,106 +40,103 @@ enum class ExternalImageViewerEvent {
 fun ImageViewerCommon(
     dependencies: Dependencies
 ) {
-    CompositionLocalProvider(
+    MaterialTheme {
-        LocalLocalization provides dependencies.localization,
+        Box(Modifier.fillMaxSize().background(Color.White)) {
-        LocalNotification provides dependencies.notification,
+            CommonDialog()
-        LocalImageProvider provides dependencies.imageProvider,
+            //NaturalScrolling()
-        LocalInternalEvents provides dependencies.externalEvents,
+            //DynamicType()
-        LocalSharePicture provides dependencies.sharePicture,
+            //TextFieldCapitalization()
-    ) {
+            //TestFramework()
-        ImageViewerWithProvidedDependencies(dependencies.pictures)
+        }
     }
 }
 
-@OptIn(ExperimentalAnimationApi::class)
 @Composable
-fun ImageViewerWithProvidedDependencies(
+fun CommonDialog() {
-    pictures: SnapshotStateList<PictureData>
+    Box(Modifier.fillMaxSize().windowInsetsPadding(WindowInsets.safeContent)) {
-) {
+        var isDialogOpen by remember { mutableStateOf(false) }
-    // rememberSaveable is required to properly handle Android configuration changes (such as device rotation)
+        Button(onClick = {
-    val selectedPictureIndex = rememberSaveable { mutableStateOf(0) }
+            isDialogOpen = true
-    val navigationStack = rememberSaveable(
+        }) {
-        saver = listSaver<NavigationStack<Page>, Page>(
+            Text("Open")
-            restore = { NavigationStack(*it.toTypedArray()) },
+        }
-            save = { it.stack },
+        if (isDialogOpen) {
-        )
+            AlertDialog(
-    ) {
+                onDismissRequest = { isDialogOpen = false },
-        NavigationStack(GalleryPage())
+                confirmButton = {
+                    Button(onClick = { isDialogOpen = false }) {
+                        Text("OK")
                     }
-
+                },
-    val externalEvents = LocalInternalEvents.current
+                title = { Text("Alert Dialog") },
-    LaunchedEffect(Unit) {
+                text = { Text("Lorem Ipsum") },
-        externalEvents.collect {
+            )
-            if (it == ExternalImageViewerEvent.ReturnBack) {
-                navigationStack.back()
         }
     }
 }
 
-    AnimatedContent(targetState = navigationStack.lastWithIndex(), transitionSpec = {
+
-        val previousIdx = initialState.index
+@Composable
-        val currentIdx = targetState.index
+fun NaturalScrolling() {
-        val multiplier = if (previousIdx < currentIdx) 1 else -1
+    val items = (1..30).map { "Item $it" }
-        if (initialState.value is GalleryPage && targetState.value is MemoryPage) {
+    LazyColumn {
-            fadeIn() with fadeOut(tween(durationMillis = 500, 500))
+        items(items) {
-        } else if (initialState.value is MemoryPage && targetState.value is GalleryPage) {
+            Text(
-            fadeIn() with fadeOut(tween(delayMillis = 150))
+                text = it,
-        } else {
+                fontSize = 30.sp,
-            slideInHorizontally { w -> multiplier * w } with
+                modifier = Modifier.padding(start = 20.dp)
-                    slideOutHorizontally { w -> multiplier * -1 * w }
+            )
-        }
-    }) { (_, page) ->
-        when (page) {
-            is GalleryPage -> {
-                GalleryScreen(
-                    pictures = pictures,
-                    selectedPictureIndex = selectedPictureIndex,
-                    onClickPreviewPicture = { previewPictureIndex ->
-                        navigationStack.push(MemoryPage(previewPictureIndex))
         }
-                ) {
-                    navigationStack.push(CameraPage())
     }
 }
 
-            is FullScreenPage -> {
+@Composable
-                FullscreenImageScreen(
+fun DynamicType() {
-                    picture = pictures[page.pictureIndex],
+    Text("This is some sample text", fontSize = 30.sp)
-                    back = {
-                        navigationStack.back()
 }
+
+@Composable
+fun TextFieldCapitalization() {
+    var text by remember { mutableStateOf("") }
+    TextField(
+        value = text,
+        onValueChange = { text = it },
+        keyboardOptions = KeyboardOptions(
+            capitalization = KeyboardCapitalization.Sentences,
+            autoCorrect = false,
+            keyboardType = KeyboardType.Ascii,
+        ),
     )
 }
 
-            is MemoryPage -> {
+@Composable
-                MemoryScreen(
+fun TestFramework(){
-                    pictures = pictures,
+    var searchText by remember { mutableStateOf("cats") }
-                    memoryPage = page,
+    val searchHistory = remember { mutableStateListOf<String>() }
-                    onSelectRelatedMemory = { pictureIndex ->
+
-                        navigationStack.push(MemoryPage(pictureIndex))
+
-                    },
+    Column(modifier = Modifier.padding(30.dp)) {
-                    onBack = { resetNavigation ->
+        TextField(
-                        if (resetNavigation) {
+            modifier = Modifier.testTag("searchText"),
-                            selectedPictureIndex.value = 0
+            value = searchText,
-                            navigationStack.reset()
+            onValueChange = {
-                        } else {
+                searchText = it
-                            navigationStack.back()
             }
-                    },
-                    onHeaderClick = { pictureIndex ->
-                        navigationStack.push(FullScreenPage(pictureIndex))
-                    },
         )
+        Button(
+            modifier = Modifier.testTag("search"),
+            onClick = {
+                searchHistory.add("You searched for: $searchText")
             }
-
+        ) {
-            is CameraPage -> {
+            Text("Search")
-                CameraScreen(
+        }
-                    onBack = { resetSelectedPicture ->
+        LazyColumn {
-                        if (resetSelectedPicture) {
+            items(searchHistory) {
-                            selectedPictureIndex.value = 0
+                Text(
-                        }
+                    text = it,
-                        navigationStack.back()
+                    fontSize = 20.sp,
-                    },
+                    modifier = Modifier.padding(start = 10.dp).testTag("attempt")
                 )
             }
         }

examples/imageviewer/shared/src/iosMain/kotlin/example/imageviewer/ImageViewer.ios.kt

@@ -27,7 +27,6 @@ internal fun ImageViewerIos() {
         getDependencies(ioScope, toastState)
     }
 
-    ImageViewerTheme {
     Surface(
         modifier = Modifier.fillMaxSize()
     ) {
@@ -37,7 +36,6 @@ internal fun ImageViewerIos() {
         Toast(toastState)
     }
 }
-}
 
 fun getDependencies(ioScope: CoroutineScope, toastState: MutableState<ToastState>) =
     object : Dependencies() {