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[WIP] Jetpack XR library update for July '26 #978

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[WIP] Jetpack XR library update for July '26 #978

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b3c0922
uncomment snapshot build id
trambui09 Jul 9, 2026
f617478
migrations for snapshot version
trambui09 Jul 9, 2026
bdaf19e
fix build issues and addres gemini feedback
trambui09 Jul 9, 2026
e00aef2
revert glimmer's actionCard changes
trambui09 Jul 13, 2026
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2 changes: 1 addition & 1 deletion gradle.properties
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Expand Up @@ -26,4 +26,4 @@ android.enableR8.fullMode=true

# Use an AndroidX snapshot build.
# https://androidx.dev/snapshots/builds
# snapshotVersion=14793336
snapshotVersion=15680104
4 changes: 2 additions & 2 deletions xr/src/main/java/com/example/xr/arcore/Anchors.kt
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Expand Up @@ -23,7 +23,7 @@ import androidx.xr.runtime.Config
import androidx.xr.runtime.Session
import androidx.xr.runtime.SessionConfigureSuccess
import androidx.xr.runtime.math.Pose
import androidx.xr.scenecore.AnchorEntity

@vad710 vad710 Jul 10, 2026

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Just to confirm that we are handling this name change properly - is this a breaking change or is AnchorEntity still available and marked as depracated?

@trambui09 trambui09 Jul 10, 2026

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It's a breaking change. Any code using the old AnchorEntity class will need to be updated to use AnchorSpace.

@devbridie devbridie Jul 13, 2026

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No breakage for downstream clients just yet - see cs.android.com; AnchorEntity is being marked @Deprecated.

import androidx.xr.scenecore.AnchorSpace
import androidx.xr.scenecore.Entity
import androidx.xr.scenecore.scene

Expand Down Expand Up @@ -59,7 +59,7 @@ private fun attachEntityToAnchor(
anchor: Anchor
) {
// [START androidxr_arcore_entity_tracks_anchor]
AnchorEntity.create(session, anchor).apply {
AnchorSpace.create(session, anchor).apply {
parent = session.scene.activitySpace
addChild(entity)
}
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2 changes: 0 additions & 2 deletions xr/src/main/java/com/example/xr/arcore/DepthMaps.kt
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Expand Up @@ -20,7 +20,6 @@ import android.content.Context
import androidx.xr.arcore.Depth
import androidx.xr.runtime.Config
import androidx.xr.runtime.DepthEstimationMode
import androidx.xr.runtime.ExperimentalXrDeviceLifecycleApi
import androidx.xr.runtime.RenderingMode
import androidx.xr.runtime.Session
import androidx.xr.runtime.SessionConfigureSuccess
Expand All @@ -39,7 +38,6 @@ private fun configureDepthEstimation(session: Session) {
// [END androidxr_arcore_depthmaps_configure]
}

@OptIn(ExperimentalXrDeviceLifecycleApi::class)
private fun checkLeftDepthSupport(context: Context) {
// [START androidxr_arcore_depthmaps_check_support]
val xrDevice = XrDevice.getCurrentDevice(context)
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8 changes: 5 additions & 3 deletions xr/src/main/java/com/example/xr/arcore/Hands.kt
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Expand Up @@ -151,10 +151,12 @@ class GenerateHandJointData : ComponentActivity() {
@OptIn(FlowPreview::class)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
val session = (Session.create(context = this) as SessionCreateSuccess).session
val config = Config.Builder(session.config).setHandTracking(HandTrackingMode.BOTH).build()
session.configure(config)

lifecycleScope.launch {
val session = (Session.create(context = this@GenerateHandJointData) as SessionCreateSuccess).session

@vad710 vad710 Jul 10, 2026

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Just for my own understanding, what does the syntax of @GenerateHandJointData do here?

@yrezgui yrezgui Jul 10, 2026

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this refers to lifecycleScope given that it's within its block. By putting @GenerateHandJointData, you go one level higher, which is an Activity and it's castable as a `Context

val config = Config.Builder(session.config).setHandTracking(HandTrackingMode.BOTH).build()
session.configure(config)

Hand.right(session).state.sample(500.milliseconds).collect { rightHandState ->
val bufferString = buildString {
append("mapOf(")
Expand Down
7 changes: 3 additions & 4 deletions xr/src/main/java/com/example/xr/compose/Orbiter.kt
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Expand Up @@ -44,9 +44,8 @@ import androidx.xr.compose.subspace.SpatialRow
import androidx.xr.compose.subspace.layout.SpatialRoundedCornerShape
import androidx.xr.compose.subspace.layout.SubspaceModifier
import androidx.xr.compose.subspace.layout.height
import androidx.xr.compose.subspace.layout.movable
import androidx.xr.compose.subspace.layout.resizable
import androidx.xr.compose.subspace.layout.transformingMovable
import androidx.xr.compose.subspace.layout.transformingResizable
import androidx.xr.compose.subspace.layout.width
import androidx.xr.compose.unit.DpVolumeOffset
import com.example.xr.R
Expand All @@ -59,8 +58,8 @@ private fun OrbiterExampleSubspace() {
SubspaceModifier
.height(824.dp)
.width(1400.dp)
.transformingResizable()

@vad710 vad710 Jul 10, 2026

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Same question here - how is this deprecation being handled?

Do we have enough changes that we should think about doing a migration guide? Or perhaps a few things we should highlight in the Beta Blog post in August?

@trambui09 trambui09 Jul 10, 2026

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I think @amyZepp would be a good person to make that call. What do you think Amy?

.transformingMovable(),
.resizable()
.movable(),
) {
SpatialPanelContent()
OrbiterExample()
Expand Down
11 changes: 5 additions & 6 deletions xr/src/main/java/com/example/xr/compose/SceneCoreEntity.kt
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Expand Up @@ -17,7 +17,6 @@
package com.example.xr.compose

import androidx.compose.runtime.Composable
import androidx.compose.ui.platform.LocalDensity
import androidx.compose.ui.unit.dp
import androidx.xr.compose.platform.LocalSession
import androidx.xr.compose.spatial.Subspace
Expand All @@ -26,17 +25,17 @@ import androidx.xr.compose.subspace.SceneCoreEntitySizeAdapter
import androidx.xr.compose.subspace.layout.SubspaceModifier
import androidx.xr.compose.subspace.layout.offset
import androidx.xr.compose.unit.IntVolumeSize
import androidx.xr.compose.unit.Meter
import androidx.xr.runtime.math.FloatSize2d
import androidx.xr.runtime.math.IntSize2d
import androidx.xr.runtime.math.Pose
import androidx.xr.scenecore.SurfaceEntity
import androidx.xr.scenecore.scene

@Composable
fun SceneCoreEntityExample() {
val session = LocalSession.current ?: return
// [START androidxr_compose_SceneCoreEntity]
val density = LocalDensity.current
val virtualPixelDensity = session.scene.virtualPixelDensity

Subspace {
SceneCoreEntity(
modifier = SubspaceModifier.offset(x = 50.dp),
Expand All @@ -58,8 +57,8 @@ fun SceneCoreEntityExample() {
size: IntVolumeSize
) {
val extents = FloatSize2d(
Meter.fromPixel(size.width.toFloat(), density).toM(),
Meter.fromPixel(size.height.toFloat(), density).toM(),
size.width.toFloat(),
size.height.toFloat()

@vad710 vad710 Jul 10, 2026

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is the data we are returning from these values fundamentally different now?

I am trying to understand if we have a sneaky breaking change that might be hard to detect and leading to bugs.

)
Comment on lines 59 to 62

@gemini-code-assist gemini-code-assist Bot Jul 9, 2026

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high

The size parameter in onLayoutSizeChanged represents the layout dimensions in pixels (or virtual pixels). Directly passing size.width.toFloat() and size.height.toFloat() to FloatSize2d without converting them to meters will result in an extremely large quad (e.g., hundreds or thousands of meters wide/high). You should use the virtualPixelDensity retrieved on line 37 to perform the conversion from pixels to meters.

Suggested change
val extents = FloatSize2d(
Meter.fromPixel(size.width.toFloat(), density).toM(),
Meter.fromPixel(size.height.toFloat(), density).toM(),
size.width.toFloat(),
size.height.toFloat()
)
val extents = FloatSize2d(
virtualPixelDensity.pxToMeters(size.width.toFloat()),
virtualPixelDensity.pxToMeters(size.height.toFloat())
)

@trambui09 trambui09 Jul 9, 2026

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The suggest didn't work due to the unresolved reference pxToMeters

entity.shape = SurfaceEntity.Shape.Quad(extents)
}
Expand Down
4 changes: 3 additions & 1 deletion xr/src/main/java/com/example/xr/compose/SpatialGltfModel.kt
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Expand Up @@ -25,6 +25,7 @@ import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.xr.compose.platform.LocalSession
import androidx.xr.compose.subspace.ExperimentalSpatialGltfAnimationApi
import androidx.xr.compose.subspace.SpatialGltfModel
import androidx.xr.compose.subspace.SpatialGltfModelSource
import androidx.xr.compose.subspace.layout.SubspaceModifier
Expand All @@ -38,6 +39,7 @@ import androidx.xr.scenecore.Texture
import java.nio.file.Paths
import kotlin.io.path.Path

@OptIn(ExperimentalSpatialGltfAnimationApi::class)
@Composable
fun SpatialGltfModelExample(){
val xrSession = checkNotNull(LocalSession.current)
Expand Down Expand Up @@ -132,7 +134,7 @@ fun SpatialGltfModelExample(){
// [END androidxr_compose_SpatialGltfModelTexture]

// [START androidxr_compose_SpatialGltfModelAnimation]
val animation = modelState.animations.find { it.name == "Walk" }
val animation = modelState.getAnimations().find { it.name == "Walk" }

animation?.animationState?.let { state ->
LaunchedEffect(state) {
Expand Down
10 changes: 6 additions & 4 deletions xr/src/main/java/com/example/xr/compose/SpatialPanel.kt
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Expand Up @@ -30,10 +30,12 @@ import androidx.compose.ui.unit.sp
import androidx.xr.compose.platform.LocalSpatialCapabilities
import androidx.xr.compose.spatial.Subspace
import androidx.xr.compose.subspace.SpatialPanel
import androidx.xr.compose.subspace.layout.MovePolicy
import androidx.xr.compose.subspace.layout.SubspaceModifier
import androidx.xr.compose.subspace.layout.height
import androidx.xr.compose.subspace.layout.movable
import androidx.xr.compose.subspace.layout.resizable
import androidx.xr.compose.subspace.layout.transformingMovable
import androidx.xr.compose.subspace.layout.transformingResizable
import androidx.xr.compose.subspace.layout.width

@Composable
Expand All @@ -44,8 +46,8 @@ private fun SpatialPanelExample() {
SubspaceModifier
.height(824.dp)
.width(1400.dp)
.transformingMovable()
.transformingResizable(),
.movable()
.resizable(),
) {
SpatialPanelContent()
}
Expand Down Expand Up @@ -81,7 +83,7 @@ private fun ContentInSpatialPanel() {
if (LocalSpatialCapabilities.current.isSpatialUiEnabled) {
Subspace {
SpatialPanel(
modifier = SubspaceModifier.transformingMovable().transformingResizable(),
modifier = SubspaceModifier.movable().resizable(),
) {
AppContent()
}
Expand Down
4 changes: 3 additions & 1 deletion xr/src/main/java/com/example/xr/projected/ProjectedMainActivity.kt
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Expand Up @@ -35,8 +35,8 @@ import androidx.core.content.ContextCompat
import androidx.lifecycle.DefaultLifecycleObserver
import androidx.lifecycle.LifecycleOwner
import androidx.lifecycle.lifecycleScope
import androidx.xr.glimmer.Button
import androidx.xr.glimmer.Card
import androidx.xr.glimmer.Button
import androidx.xr.glimmer.GlimmerTheme
import androidx.xr.glimmer.Text
import androidx.xr.glimmer.surface
Expand All @@ -57,6 +57,8 @@ class ProjectedMainActivity : ComponentActivity() {
private var areVisualsOn by mutableStateOf(true)
private var isPermissionDenied by mutableStateOf(false)

@Suppress("DEPRECATION")
// TODO: Remove suppression once Android Emulator supports ProjectedActivityCompat.requestPermissions()
// [START androidxr_projected_permissions_launcher]
// Register the permissions launcher using the ProjectedPermissionsResultContract.
private val requestPermissionLauncher: ActivityResultLauncher<List<ProjectedPermissionsRequestParams>> =
Expand Down
2 changes: 0 additions & 2 deletions xr/src/main/java/com/example/xr/runtime/DeviceLifecycle.kt
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Expand Up @@ -22,7 +22,6 @@ import androidx.annotation.RequiresApi
import androidx.lifecycle.Lifecycle
import androidx.xr.projected.ProjectedContext
import androidx.xr.projected.experimental.ExperimentalProjectedApi
import androidx.xr.runtime.ExperimentalXrDeviceLifecycleApi
import androidx.xr.runtime.XrDevice
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.currentCoroutineContext
Expand All @@ -31,7 +30,6 @@ import kotlinx.coroutines.flow.flowOf

@RequiresApi(Build.VERSION_CODES.BAKLAVA)
@OptIn(
ExperimentalXrDeviceLifecycleApi::class,
ExperimentalProjectedApi::class,
ExperimentalCoroutinesApi::class,
)
Expand Down
2 changes: 0 additions & 2 deletions xr/src/main/java/com/example/xr/runtime/DisplayBlendMode.kt
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Expand Up @@ -20,10 +20,8 @@ import android.content.Context
import androidx.xr.runtime.DisplayBlendMode.Companion.ADDITIVE
import androidx.xr.runtime.DisplayBlendMode.Companion.ALPHA_BLEND
import androidx.xr.runtime.DisplayBlendMode.Companion.NO_DISPLAY
import androidx.xr.runtime.ExperimentalXrDeviceLifecycleApi
import androidx.xr.runtime.XrDevice

@OptIn(ExperimentalXrDeviceLifecycleApi::class)
fun getPreferredBlendMode(context: Context) {
// [START androidxr_runtime_getPreferredBlendMode]
val preferredDisplayBlendMode =
Expand Down
16 changes: 10 additions & 6 deletions xr/src/main/java/com/example/xr/runtime/Session.kt
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Expand Up @@ -19,9 +19,11 @@ package com.example.xr.runtime
import android.content.Context
import androidx.activity.ComponentActivity
import androidx.compose.runtime.Composable
import androidx.lifecycle.lifecycleScope
import androidx.xr.compose.platform.LocalSession
import androidx.xr.runtime.Session
import androidx.xr.runtime.SessionCreateSuccess
import kotlinx.coroutines.launch

// [START androidxr_localsession]
@Composable
Expand All @@ -32,13 +34,15 @@ fun ComposableUsingSession() {

fun ComponentActivity.createSession(context: Context) {
// [START androidxr_session_create]
when (val result = Session.create(context)) {
is SessionCreateSuccess -> {
val xrSession = result.session
// ...
lifecycleScope.launch {
when (val result = Session.create(context)) {
is SessionCreateSuccess -> {
val xrSession = result.session
// ...
}
else ->
TODO(/* A different unhandled exception was thrown. */)
}
else ->
TODO(/* A different unhandled exception was thrown. */)
}
// [END androidxr_session_create]
}
4 changes: 3 additions & 1 deletion xr/src/main/java/com/example/xr/scenecore/GltfEntity.kt
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Expand Up @@ -21,6 +21,7 @@ import android.content.Intent
import android.net.Uri
import androidx.activity.ComponentActivity
import androidx.xr.runtime.Session
import androidx.xr.scenecore.ExperimentalGltfAnimationApi
import androidx.xr.scenecore.GltfAnimationStartOptions
import androidx.xr.scenecore.GltfModel
import androidx.xr.scenecore.GltfModelEntity
Expand All @@ -42,9 +43,10 @@ private fun createModelEntity(session: Session, gltfModel: GltfModel) {
// [END androidxr_scenecore_gltfmodelentity_create]
}

@OptIn(ExperimentalGltfAnimationApi::class)
private fun animateEntity(gltfEntity: GltfModelEntity) {
// [START androidxr_scenecore_gltfmodelentity_animation]
val animation = gltfEntity.animations.find { it.name == "Walk" }
val animation = gltfEntity.getAnimations().find { it.name == "Walk" }
animation?.start(GltfAnimationStartOptions(shouldLoop = true))
// [END androidxr_scenecore_gltfmodelentity_animation]
}
Expand Down
7 changes: 5 additions & 2 deletions xr/src/test/java/com/example/xr/arcore/test/ArCoreTestRule.kt
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Expand Up @@ -32,6 +32,7 @@ import androidx.xr.runtime.math.Vector3
import com.example.xr.arcore.detectThumbsUp
import com.google.common.truth.Truth.assertThat
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.runBlocking
import kotlinx.coroutines.test.StandardTestDispatcher
import kotlinx.coroutines.test.TestDispatcher
import kotlinx.coroutines.test.TestScope
Expand Down Expand Up @@ -69,8 +70,10 @@ class ArCoreTestRuleExample {

activityController.create().start().resume()

val sessionCreateResult = Session.create(context = activity, coroutineContext = testDispatcher)
session = (sessionCreateResult as SessionCreateSuccess).session
runBlocking {
val sessionCreateResult = Session.create(context = activity, coroutineContext = testDispatcher)
session = (sessionCreateResult as SessionCreateSuccess).session
}

// Configure the session.
session.configure(Config.Builder(session.config).setHandTracking(HandTrackingMode.BOTH).build())
Expand Down
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