1.8.0-alpha01

Changes since 1.7.1

Highlights

iOS

• LocalUIViewController moved to the androidx.compose.ui.uikit module
• Update AccessibilitySyncOptions and remove AccessibilityDebugLogger from public API
• ComposeUIViewControllerDelegate marked as deprecated. Use parent view controller to override the methods of the UIViewController class
• Remove experimental flag from fun enableTraceOSLog()
• Remove obsolete Canvas Layers mode on iOS

Breaking Changes

Multiple Platforms

• Tests that relied on waitForIdle, awaitIdle or runOnIdle (whether explicit or implicit) executing delay-ed coroutines will no longer work correctly. To fix this advance the test time via mainClock manually, as needed
  For example, tests that previously did something like:

  var updateText by mutableStateOf(false)
  var text by mutableStateOf("0")
  setContent {
      LaunchedEffect(updateText) {
          if (updateText) {
              delay(1000)
              text = "1"
          }
      }
  }
  updateText = true
  waitForIdle()
  assertEquals("1", text)
  

  will need to add mainClock.advanceTimeBy(1000) after waitForIdle(), because waitForIdle no longer waits for the delay-ed coroutine to complete
• Tests that advance the test clock (via mainClock.advanceTimeBy) may see different behavior with regards to the amount and timing of recomposition, layout, drawing and effects
• runOnIdle will now execute action on the UI thread
• runOnIdle will no longer call waitForIdle after executing the action
• Advancing mainClock such that it doesn't reach the next frame, will no longer cause a recomposition

Desktop

• Deprecated/experimental Modifier.onExternalDrag has been removed - common Modifier.dragAndDropTarget API should be used instead

Features

Multiple Platforms

• Support configurable vertical text centering via LineHeightStyle.Alignment
• Support Variable Fonts In All Platforms

iOS

• Add localised string for VoiceOver accessibility support
• Support state announcements for scrollable lists in VoiceOver
• Support for accessibility gestures for left-to-right languages

Desktop

• Compose plugin for IntelliJ IDEA now supports K2 mode

Resources

• Add new API to preload and cache font and image resources on web targets: preloadFont, preloadImageBitmap, preloadImageVector

Gradle Plugin

• Support compose resources in androidLibrary target

Navigation

• Basic support a navigation by deep links
• Commonize navController.navigate(Uri) method
• Implemented non-android navController.handleDeepLink(NavDeepLinkRequest) method
• New API to configure browser navigation buttons and the address line
• Navigation via a browser address field

Fixes

Multiple Platforms

• waitForIdle, awaitIdle and runOnIdle no longer consider Compose to be non-idle when coroutines launched in a composition scope call delay. This prevents tests with an infinite loop with delay in a LaunchedEffect from hanging
• Tests that advance the test clock (via mainClock.advanceTimeBy) will now correctly (re)compose/layout/draw/effects each virtual frame as needed
• runOnIdle will now execute action on the UI thread, as Android behaves
• runOnIdle will no longer call waitForIdle after executing the action, as Android behaves
• The overhead for running an empty test has been significantly reduced

iOS

• Deprecate defaultUIKitMain()
• Fixed visibility of androidx.compose.material3.internal.formatWithSkeleton that was accidently marked as public
• Fix a bug where the accessibility tree did not reload when VoiceOver was enabled
• Fix Display Cutout Padding when rotating the device

Desktop

• Fix drag-and-drop when the list of supported actions doesn't include Move
• Fix accessibility focus when using compose.swing.render.on.graphics=true
• Fix "Context menu on desktop shows incorrect items after the second showing"

Resources

• Read android:autoMirrored="true" property and pass it to ImageVector builder

Navigation

• Fixed No destination with ID 0 is on the NavController's back stack crash on iOS

Dependencies

• Gradle Plugin org.jetbrains.compose, version 1.8.0-alpha01. Based on Jetpack Compose libraries:

  • Runtime 1.8.0-alpha03
  • UI 1.8.0-alpha03
  • Foundation 1.8.0-alpha03
  • Material 1.8.0-alpha03
  • Material3 1.4.0-alpha01

• Lifecycle libraries org.jetbrains.androidx.lifecycle:lifecycle-*:2.9.0-alpha01. Based on Jetpack Lifecycle 2.9.0-alpha03

• Navigation libraries org.jetbrains.androidx.navigation:navigation-*:2.8.0-alpha11. Based on Jetpack Navigation 2.8.0

• Material3 Adaptive libraries org.jetbrains.compose.material3.adaptive:adaptive*:1.1.0-alpha01. Based on Jetpack Material3 Adaptive 1.1.0-alpha04