JetBrains/compose-multiplatform v1.12.0

1.12.0

on GitHub

Changes since 1.11.1

Highlights

Desktop

• MCP server was introduced for Compose Hot Reload that enables AI agents to interact with a running Compose application in real time #5671

Migration Notes

Multiple Platforms

• Deprecation level of NativeCanvas, NativePaint typealiases and related methods has been changed to ERROR #3127

Desktop

• The background parameter of SwingPanel has been deprecated. Instead set the background manually in the factory method. There's a new (experimental) Color.toAwtColor() function to convert Compose color objects to AWT ones #3024
• If your ComposePanel, ComposeWindow or ComposeDialog content can not be measured in infinite constraints (e.g. Modifier.verticalScroll) on a certain axis, you should provide a fixed size for that axis by calling ComposePanel.setPreferredSize with a Dimension that has a fixed size (on that axis) #3055

Features

Multiple Platforms

• Add blockPointerInputOutside flag to PopupProperties to support not-blocking pointer inputs outside of focusable Popups #2992
• Support LayerOutsets to GraphicsLayer & Modifier.graphicsLayer which can be used to increase the visual bounds of the layer beyond its measured size. This can be used to avoid the implicit clipToBounds behavior when the layer is promoted to an offscreen buffer #3144
• Support MeshGradientPainter in Modifier.paint #3143
• Implemented ComposeUiTest.runWithoutImplicitWait #3170

iOS

• Support LiveRegion semantics in Accessibility #2944
• The selection handles now match the style of iOS #2991
• Add the 'Select' item on the context menu for the text fields #3081
• Add NSLocale.toComposeLocale() API to create Locale from platform NSLocale #3103
• Support VerbatimTtsAnnotation and LocaleList attributes in accessibility VoiceOver #3145

Desktop

• The parent AWT window of a composition is now available via LocalAwtWindow.current #3007
• Implemented a new, experimental, WindowState API #2938
• It is now possible to control the way ComposePanel, ComposeWindow and ComposeDialog compute their minimum (only ComposePanel), preferred and maximum (only ComposePanel) sizes, by setting the corresponding property to a Dimension with a special UNSPECIFIED_DIMENSION_VALUE on the axis that should be determined by the content #3055
• The default ProGuard version is set to 7.8.0 #5613
• Update bundled Compose Hot Reload version to 1.2.0 #5671

Web

• Support for Modifier.keepScreenOn for web using Screen Wake Lock API #2784
• Support haptic feedback on web targets #3045
• Noto fonts is being loaded automatically for unresolved symbols on Web #3010

Navigation

• Improved iOS specific default navigation transactions in Nav2 #3023
• Web and Desktop default navigation transactions are set to None in Nav2 #3023

Fixes

Multiple Platforms

• Fix DatePickerDialog's confirmButton and dismissButton display order on iOS, Desktop, Kotlin/JS and Kotlin/Wasm not consistent with Material Design guidance #3048
• Fixed a crash in RTL text cursor positioning when paragraphs contain newlines followed by emojis or combining marks #3056
• ComposeUiTest idle handling (waitForIdle/awaitIdle/runOnIdle) now matches Android: idleness is reached once composition, measure, and layout have settled (a pending draw is still flushed before returning). As a result, hasPendingWork() reflects composition/measure/layout state, and with mainClock.autoAdvance = false waiting now settles pending measure/layout #3108
• Fix crash in method setComposingRegion when calling it with inverted or invalid region #3112

iOS

• Fix a conflict with external bundled Skia libraries #3008
• Fix incorrect scaling and positioning of interop UIKitView / UIKitViewController element when LocalDensity is modified. This change does not affect scaling of factory content: UIView / UIViewController #3037
• Fix issue where BasicTextField reported inconsistent changes between Android and iOS #2990
• Fix issue where a BasicTextField with InputTransformation may use the incorrect internal text state #2990
• Fix elements selection with Full Keyboard Access #3038
• Fix application build when using old Xcode 16 SDK #3278
• Fix an issue where the Compose does not receive key events when initially created #3066
• Fix issue when BasicTextField does not show context menu after long press #3080
• Fix symbols duplication on keyboard paste hotkeys #3067
• Focusable nodes inside merged semantics remain focusable #3089
• Fix content jump at the beginning of a swipe back gesture #3101
• ViewModel now receives onCleared call when Compose Container is deallocated #3118
• Fix incorrect frames order during high load rendering #3122
• Fix swipe-back gesture conflict with horizontally scrollable components like HorizontalPager #3116
• Fix an issue where ComposeUIViewController might fail to load its content when placed inside a SwiftUI view #3159
• Fix UIKit back gesture briefly dispatched drag input to Compose content, causing UI like navigation drawers to appear during back navigation #3192
• Fix iOS swipe-back behavior in RTL layouts #3196
• Fixed a crash that could occur when inserting text via Scribble (Apple Pencil) in TextFields with usingNativeTextInput set to true #3201
• Fix rare crash that occurs when iOS accesses a disposed AccessibilityElement #3214
• Fix crash on iOS 14 caused by referencing CAFrameRateRangeDefault, which is only available on iOS 15+ #3219

Desktop

• [ComposePanel in Swing rendering mode] Fix Metal offscreen rendering crash when drawing to a Software renderer #3008
• Fix SwingPanel size not scaling according to LocalDensity. Note that this doesn't scale the Swing content of the SwingPanel #3033
• Fixed the native keyCode for Key.NumPadDot to the correct KeyEvent.VK_DECIMAL #3142
• Fixed LayoutCoordinates conversion to window/screen space in popups/dialogs with compose.layers.type=WINDOW #3154
• Fixed a crash when encountering a null accessible child in the Swing hierarchy while looking for a component to switch a11y focus to, after the currently focused a11y component has been removed #3158
• Fixed popups/dialogs staying on top of other windows with compose.layers.type=WINDOW #3153
• On Windows and macOS, isSystemInDarkTheme will now return dynamic values as the OS theme changes, causing any callers to recompose. This is done by polling the system in the background once a second. This behavior can be controlled by setting ComposeUiFlags.pollSystemTheme #3063
• Fix crash when starting a selection beyond the last text in a SelectionContainer #3270

Web

• Fixed pointer state remaining active when the browser cancels a pointer via pointercancel (system gestures, palm rejection, device disconnect, etc.) #3036
• Added precise trackpad gesture detection in Chrome via heuristic methods #3123
• Deliver both scroll axes in wheel events (fix diagonal scroll) #3147
• Web: retry loading fallback fonts in case of network errors #3152
• Fix of tofu symbols during a first draw in TextFields with unknown symbols #3182
• Fixes tofu symbols in the second, third etc texts on a page with an equal text #3181
• Fix a regression in scrolling when ComposeViewport is embedded in HTML scrollable container #3221
• Fix div#cmp_a11y_root having 0×0 dimensions on Compose for Web (Kotlin/WASM), which made Compose content invisible to hit-test-based accessibility tools such as Accessibility Inspector and Appium. The a11y container is now sized to match the canvas and stays in sync on resize #3226
• Fixed the hidden software keyboard in mobile browsers in focused text fields #3235

Resources

• Fix an issue when resource loading might be cancelled and UI became empty #5617
• Support BCP 47 script (values-b+sr+Latn, values-b+zh+Hans) and numeric region (values-b+es+419) qualifiers, including multi-segment locales and trailing theme/density qualifiers, in commonMain resource folders #5582
• Web: fixed a app crash when a resource fetch is failed #5627

Gradle Plugin

• Add clear error message if JS browser tests configuration for Compose UI is invalid (doesn't have declared an executable binary) #5628

Components

Gradle plugin

org.jetbrains.compose version 1.12.0

Libraries