ClampingScrollSimulation decays sooner and goes less far than native Android scrolling #119875
Description
On Android, when the user attempts to scroll quickly using a "fling" gesture, the scroll doesn't go as far or as fast as it would have in a native Android scrolling view. In a long list this can make scrolling feel sluggish, or not easy, or not responsive.
One reason for this behavior is that Flutter's ClampingScrollSimulation, which is meant to match Android's scroll physics (and is used by default on Android and other non-Apple platforms), in fact uses a curve that decays faster than the Android curve, and goes less far in total. When the simulation is complete, the distance traveled is about 7.2% less than the Android scroll physics would travel.
(This isn't the only factor contributing to the overall slowness of the scroll; I'll file other issues separately.)
Related issue:
Steps to Reproduce
- Run the
platform_tests/scroll_overlayapp on an Android device. - Scroll with a fling gesture: swipe rapidly upward and release. Wait a couple of seconds for the scroll to come to a stop.
- (To isolate this single issue: swipe just once, and swipe as precisely straight upward as possible. Swiping diagonally triggers a second issue I'll file separately (→Fling-scrolling is slow unless you swipe precisely vertically #120345), and re-flinging while the scroll is still going triggers additional logic with its own complexity.)
- Observe how far the scroll went, as shown by the numbered items in the Android- and Flutter-driven scrolling lists.
Expected results:
The Flutter list should scroll the same distance as the Android list, so that corresponding list items are aligned with each other.
Actual results:
The Flutter list goes substantially less far than the Android list.
Specifically, when I try this on the current version of scroll_overlay (at flutter/platform_tests@1d797b8 ), I see "Android 94" next to "Flutter 81".
That version has item heights that vary through the list and don't quite agree between Android and Flutter, making the numbers a bit hard to interpret. In a revised scroll_overlay with fixed heights (which I'll send a platform_tests PR for), I see "Android 202" next to "Flutter 189".
Logs
[ +6 ms] executing: uname -m
[ +3 ms] Exit code 0 from: uname -m
[ ] x86_64
[ ] executing: [/home/greg/n/flutter/flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +4 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] 33e896b47581fe2737f641a181f86839df72719f
[ ] executing: [/home/greg/n/flutter/flutter/] git tag --points-at 33e896b47581fe2737f641a181f86839df72719f
[ +13 ms] Exit code 0 from: git tag --points-at 33e896b47581fe2737f641a181f86839df72719f
[ ] executing: [/home/greg/n/flutter/flutter/] git describe --match *.*.* --long --tags 33e896b47581fe2737f641a181f86839df72719f
[ +14 ms] Exit code 0 from: git describe --match *.*.* --long --tags 33e896b47581fe2737f641a181f86839df72719f
[ ] 3.7.0-12.0.pre-4-g33e896b47
[ +6 ms] executing: [/home/greg/n/flutter/flutter/] git rev-parse --abbrev-ref --symbolic @{upstream}
[ +2 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{upstream}
[ ] origin/main
[ ] executing: [/home/greg/n/flutter/flutter/] git ls-remote --get-url origin
[ +1 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ +9 ms] executing: [/home/greg/n/flutter/flutter/] git rev-parse --abbrev-ref HEAD
[ +2 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ ] main
[ +23 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +1 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +31 ms] executing: /home/greg/Android/Sdk/platform-tools/adb devices -l
[ +7 ms] List of devices attached
08171FDD40025F device usb:1-5 product:redfin model:Pixel_5 device:redfin transport_id:7
[ +3 ms] /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell getprop
[ +33 ms] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +88 ms] Skipping pub get: version match.
[ +28 ms] Generating /home/greg/n/flutter/platform_tests/scroll_overlay/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
[ +32 ms] ro.hardware = redfin
[ ] ro.build.characteristics = nosdcard
[ +20 ms] Initializing file store
[ +5 ms] Skipping target: gen_localizations
[ +3 ms] gen_dart_plugin_registrant: Starting due to {InvalidatedReasonKind.inputChanged: The following inputs have updated contents:
/home/greg/n/flutter/platform_tests/scroll_overlay/.dart_tool/package_config_subset}
[ +10 ms] gen_dart_plugin_registrant: Complete
[ ] Skipping target: _composite
[ +1 ms] complete
[ +4 ms] Launching lib/main.dart on Pixel 5 in debug mode...
[ +2 ms] /home/greg/n/flutter/flutter/bin/cache/dart-sdk/bin/dart --disable-dart-dev /home/greg/n/flutter/flutter/bin/cache/dart-sdk/bin/snapshots/frontend_server.dart.snapshot
--sdk-root /home/greg/n/flutter/flutter/bin/cache/artifacts/engine/common/flutter_patched_sdk/ --incremental --target=flutter --experimental-emit-debug-metadata
-DFLUTTER_WEB_AUTO_DETECT=true --output-dill /tmp/flutter_tools.CIELAI/flutter_tool.WAQCVS/app.dill --packages
/home/greg/n/flutter/platform_tests/scroll_overlay/.dart_tool/package_config.json -Ddart.vm.profile=false -Ddart.vm.product=false --enable-asserts --track-widget-creation
--filesystem-scheme org-dartlang-root --initialize-from-dill build/c075001b96339384a97db4862b8ab8db.cache.dill.track.dill --verbosity=error --flutter-widget-cache
--enable-experiment=alternative-invalidation-strategy
[ +4 ms] executing: /home/greg/Android/Sdk/build-tools/33.0.1/aapt dump xmltree /home/greg/n/flutter/platform_tests/scroll_overlay/build/app/outputs/flutter-apk/app-debug.apk
AndroidManifest.xml
[ +3 ms] Exit code 0 from: /home/greg/Android/Sdk/build-tools/33.0.1/aapt dump xmltree /home/greg/n/flutter/platform_tests/scroll_overlay/build/app/outputs/flutter-apk/app-debug.apk
AndroidManifest.xml
[ ] N: android=http://schemas.android.com/apk/res/android
E: manifest (line=2)
A: android:versionCode(0x0101021b)=(type 0x10)0x1
A: android:versionName(0x0101021c)="1.0" (Raw: "1.0")
A: android:compileSdkVersion(0x01010572)=(type 0x10)0x21
A: android:compileSdkVersionCodename(0x01010573)="13" (Raw: "13")
A: package="io.flutter.scroll_overlay" (Raw: "io.flutter.scroll_overlay")
A: platformBuildVersionCode=(type 0x10)0x21
A: platformBuildVersionName=(type 0x10)0xd
E: uses-sdk (line=7)
A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
E: uses-permission (line=14)
A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
E: application (line=16)
A: android:label(0x01010001)="scroll_overlay" (Raw: "scroll_overlay")
A: android:icon(0x01010002)=@0x7f080000
A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
E: activity (line=21)
A: android:theme(0x01010000)=@0x7f0a0000
A: android:name(0x01010003)="io.flutter.scroll_overlay.ScrollOverlayActivity" (Raw: "io.flutter.scroll_overlay.ScrollOverlayActivity")
A: android:exported(0x01010010)=(type 0x12)0xffffffff
A: android:launchMode(0x0101001d)=(type 0x10)0x1
A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
E: meta-data (line=36)
A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
A: android:resource(0x01010025)=@0x7f0a0001
E: intent-filter (line=40)
E: action (line=41)
A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
E: category (line=43)
A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
E: meta-data (line=50)
A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
A: android:value(0x01010024)=(type 0x10)0x2
E: uses-library (line=54)
A: android:name(0x01010003)="androidx.window.extensions" (Raw: "androidx.window.extensions")
A: android:required(0x0101028e)=(type 0x12)0x0
E: uses-library (line=57)
A: android:name(0x01010003)="androidx.window.sidecar" (Raw: "androidx.window.sidecar")
A: android:required(0x0101028e)=(type 0x12)0x0
[ +3 ms] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell -x logcat -v time -t 1
[ +8 ms] <- compile package:scroll_overlay/main.dart
[ +62 ms] --------- beginning of main
02-02 16:16:20.106 D/CHRE ( 1280): @ 411930.827: [ActivityPlatform] type 6, confidence 41
[ +6 ms] executing: /home/greg/Android/Sdk/platform-tools/adb version
[ +3 ms] Android Debug Bridge version 1.0.41
Version 33.0.3-8952118
Installed as /home/greg/Android/Sdk/platform-tools/adb
[ +1 ms] executing: /home/greg/Android/Sdk/platform-tools/adb start-server
[ +4 ms] Building APK
[ +6 ms] Running Gradle task 'assembleDebug'...
[ +1 ms] Using gradle from /home/greg/n/flutter/platform_tests/scroll_overlay/android/gradlew.
[ +14 ms] executing: /home/greg/lib/android-studio-2020.3.1.24/jre/bin/java -version
[ +83 ms] Exit code 0 from: /home/greg/lib/android-studio-2020.3.1.24/jre/bin/java -version
[ ] openjdk version "11.0.15" 2022-04-19
OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
OpenJDK 64-Bit Server VM (build 11.0.15+0-b2043.56-8887301, mixed mode)
[ +1 ms] executing: /opt/android-studio/jre/bin/java -version
[ +67 ms] Exit code 0 from: /opt/android-studio/jre/bin/java -version
[ ] openjdk version "11.0.15" 2022-04-19
OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
OpenJDK 64-Bit Server VM (build 11.0.15+0-b2043.56-8887301, mixed mode)
[ +1 ms] executing: [/home/greg/n/flutter/platform_tests/scroll_overlay/android/] /home/greg/n/flutter/platform_tests/scroll_overlay/android/gradlew --full-stacktrace --info
-Pverbose=true -Ptarget-platform=android-arm64 -Ptarget=/home/greg/n/flutter/platform_tests/scroll_overlay/lib/main.dart -Pbase-application-name=android.app.Application
-Pdart-defines=RkxVVFRFUl9XRUJfQVVUT19ERVRFQ1Q9dHJ1ZQ== -Pdart-obfuscation=false -Ptrack-widget-creation=true -Ptree-shake-icons=false -Pfilesystem-scheme=org-dartlang-root assembleDebug
[ +320 ms] Initialized native services in: /home/greg/.gradle/native
[ +204 ms] The client will now receive all logging from the daemon (pid: 8283). The daemon log file: /home/greg/.gradle/daemon/5.6.2/daemon-8283.out.log
[ ] Starting 15th build in daemon [uptime: 24 mins 23.946 secs, performance: 100%]
[ ] Using 12 worker leases.
[ ] Starting Build
[ ] Settings evaluated using settings file '/home/greg/n/flutter/platform_tests/scroll_overlay/android/settings.gradle'.
[ ] Projects loaded. Root project using build file '/home/greg/n/flutter/platform_tests/scroll_overlay/android/build.gradle'.
[ ] Included projects: [root project 'android', project ':app']
[ +100 ms] > Configure project :app
[ ] Evaluating project ':app' using build file '/home/greg/n/flutter/platform_tests/scroll_overlay/android/app/build.gradle'.
[ ] Creating configuration androidTestUtil
[ ] Creating configuration compile
[ ] Creating configuration apk
[ ] Creating configuration provided
[ ] Creating configuration api
[ ] Creating configuration implementation
[ ] Creating configuration runtimeOnly
[ ] Creating configuration compileOnly
[ ] Creating configuration wearApp
[ ] Creating configuration annotationProcessor
[ ] Creating configuration androidTestCompile
[ ] Creating configuration androidTestApk
[ ] Creating configuration androidTestProvided
[ ] Creating configuration androidTestApi
[ ] Creating configuration androidTestImplementation
[ ] Creating configuration androidTestRuntimeOnly
[ ] Creating configuration androidTestCompileOnly
[ ] Creating configuration androidTestWearApp
[ ] Creating configuration androidTestAnnotationProcessor
[ ] Creating configuration testCompile
[ ] Creating configuration testApk
[ ] Creating configuration testProvided
[ ] Creating configuration testApi
[ ] Creating configuration testImplementation
[ ] Creating configuration testRuntimeOnly
[ ] Creating configuration testCompileOnly
[ ] Creating configuration testWearApp
[ ] Creating configuration testAnnotationProcessor
[ ] Creating configuration debugCompile
[ ] Creating configuration debugApk
[ ] Creating configuration debugProvided
[ ] Creating configuration debugApi
[ ] Creating configuration debugImplementation
[ ] Creating configuration debugRuntimeOnly
[ ] Creating configuration debugCompileOnly
[ ] Creating configuration debugWearApp
[ ] Creating configuration debugAnnotationProcessor
[ ] Creating configuration androidTestDebugCompile
[ ] Creating configuration androidTestDebugApk
[ ] Creating configuration androidTestDebugProvided
[ ] Creating configuration androidTestDebugApi
[ ] Creating configuration androidTestDebugImplementation
[ ] Creating configuration androidTestDebugRuntimeOnly
[ ] Creating configuration androidTestDebugCompileOnly
[ ] Creating configuration androidTestDebugWearApp
[ ] Creating configuration androidTestDebugAnnotationProcessor
[ ] Creating configuration testDebugCompile
[ ] Creating configuration testDebugApk
[ ] Creating configuration testDebugProvided
[ ] Creating configuration testDebugApi
[ ] Creating configuration testDebugImplementation
[ ] Creating configuration testDebugRuntimeOnly
[ ] Creating configuration testDebugCompileOnly
[ ] Creating configuration testDebugWearApp
[ ] Creating configuration testDebugAnnotationProcessor
[ ] Creating configuration releaseCompile
[ ] Creating configuration releaseApk
[ ] Creating configuration releaseProvided
[ ] Creating configuration releaseApi
[ ] Creating configuration releaseImplementation
[ ] Creating configuration releaseRuntimeOnly
[ ] Creating configuration releaseCompileOnly
[ ] Creating configuration releaseWearApp
[ ] Creating configuration releaseAnnotationProcessor
[ ] Creating configuration testReleaseCompile
[ ] Creating configuration testReleaseApk
[ ] Creating configuration testReleaseProvided
[ ] Creating configuration testReleaseApi
[ ] Creating configuration testReleaseImplementation
[ ] Creating configuration testReleaseRuntimeOnly
[ ] Creating configuration testReleaseCompileOnly
[ ] Creating configuration testReleaseWearApp
[ ] Creating configuration testReleaseAnnotationProcessor
[ ] Creating configuration profileCompile
[ ] Creating configuration profileApk
[ ] Creating configuration profileProvided
[ ] Creating configuration profileApi
[ ] Creating configuration profileImplementation
[ ] Creating configuration profileRuntimeOnly
[ ] Creating configuration profileCompileOnly
[ ] Creating configuration profileWearApp
[ ] Creating configuration profileAnnotationProcessor
[ ] Creating configuration testProfileCompile
[ ] Creating configuration testProfileApk
[ ] Creating configuration testProfileProvided
[ ] Creating configuration testProfileApi
[ ] Creating configuration testProfileImplementation
[ ] Creating configuration testProfileRuntimeOnly
[ ] Creating configuration testProfileCompileOnly
[ ] Creating configuration testProfileWearApp
[ ] Creating configuration testProfileAnnotationProcessor
[ ] > Configure project :
[ ] Evaluating root project 'android' using build file '/home/greg/n/flutter/platform_tests/scroll_overlay/android/build.gradle'.
[ ] All projects evaluated.
[ ] Analytics other plugin to proto: Unknown plugin type org.gradle.kotlin.dsl.provider.plugins.KotlinScriptRootPlugin expected enum
ORG_GRADLE_KOTLIN_DSL_PROVIDER_PLUGINS_KOTLINSCRIPTROOTPLUGIN
[ ] Analytics other plugin to proto: Unknown plugin type org.gradle.kotlin.dsl.provider.plugins.KotlinScriptBasePlugin expected enum
ORG_GRADLE_KOTLIN_DSL_PROVIDER_PLUGINS_KOTLINSCRIPTBASEPLUGIN
[ ] Analytics other plugin to proto: Unknown plugin type Flutter_gradle$FlutterPluginKts expected enum FLUTTER_GRADLE$FLUTTERPLUGINKTS
[ ] Analytics other plugin to proto: Unknown plugin type FlutterPlugin expected enum FLUTTERPLUGIN
[ ] Selected primary task 'assembleDebug' from project :
[ ] Tasks to be executed: [task ':app:compileFlutterBuildDebug', task ':app:packLibsflutterBuildDebug', task ':app:preBuild', task ':app:preDebugBuild', task
':app:compileDebugAidl', task ':app:compileDebugRenderscript', task ':app:checkDebugManifest', task ':app:generateDebugBuildConfig', task ':app:cleanMergeDebugAssets', task
':app:mergeDebugShaders', task ':app:compileDebugShaders', task ':app:generateDebugAssets', task ':app:mergeDebugAssets', task ':app:copyFlutterAssetsDebug', task
':app:mainApkListPersistenceDebug', task ':app:generateDebugResValues', task ':app:generateDebugResources', task ':app:mergeDebugResources', task
':app:createDebugCompatibleScreenManifests', task ':app:processDebugManifest', task ':app:processDebugResources', task ':app:compileDebugKotlin', task ':app:javaPreCompileDebug', task
':app:compileDebugJavaWithJavac', task ':app:compileDebugSources', task ':app:processDebugJavaRes', task ':app:mergeDebugJavaResource', task ':app:checkDebugDuplicateClasses', task
':app:desugarDebugFileDependencies', task ':app:mergeExtDexDebug', task ':app:transformClassesWithDexBuilderForDebug', task ':app:mergeDexDebug', task ':app:validateSigningDebug', task
':app:signingConfigWriterDebug', task ':app:mergeDebugJniLibFolders', task ':app:mergeDebugNativeLibs', task ':app:stripDebugDebugSymbols', task ':app:packageDebug', task
':app:assembleDebug']
[ +2 ms] JetifyTransform (Thread[Execution worker for ':',5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 2,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 3,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 4,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 5,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 6,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 7,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 8,5,main]) started.
[ +1 ms] JetifyTransform (Thread[Execution worker for ':' Thread 10,5,main]) started.
[ ] JetifyTransform (Thread[Execution worker for ':' Thread 11,5,main]) started.
[ ] JetifyTransform (Thread[Daemon worker Thread 7,5,main]) started.
[ ] > Transform artifact kotlin-stdlib-common.jar (org.jetbrains.kotlin:kotlin-stdlib-common:1.5.31) with JetifyTransform
[ ] Transforming artifact kotlin-stdlib-common.jar (org.jetbrains.kotlin:kotlin-stdlib-common:1.5.31) with JetifyTransform
[ ] Caching disabled for JetifyTransform:
/home/greg/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.5.31/43331609c7de811fed085e0dfd150874b157c32/kotlin-stdlib-common-1.5.31.jar because:
[ ] Build cache is disabled
[ ] Skipping JetifyTransform:
/home/greg/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-common/1.5.31/43331609c7de811fed085e0dfd150874b157c32/kotlin-stdlib-common-1.5.31.jar as it is up-to-date.
[ ] > Transform artifact kotlin-stdlib-jdk7.jar (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.5.30) with JetifyTransform
[ ] Transforming artifact kotlin-stdlib-jdk7.jar (org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.5.30) with JetifyTransform
[ +3 ms] Caching disabled for JetifyTransform:
/home/greg/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.5.30/525f5a7fa6d7790a571c07dd24214ed2dda352fe/kotlin-stdlib-jdk7-1.5.30.jar because:
[ ] Build cache is disabled
[ ] Skipping JetifyTransform:
/home/greg/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.5.30/525f5a7fa6d7790a571c07dd24214ed2dda352fe/kotlin-stdlib-jdk7-1.5.30.jar as it is up-to-date.
[… copious build logs elided to meet GitHub's length limit …]
[ ] > Transform artifact tracing.aar (androidx.tracing:tracing:1.0.0) with AarTransform
[ ] Transforming artifact tracing.aar (androidx.tracing:tracing:1.0.0) with AarTransform
[ ] Caching disabled for AarTransform: /home/greg/.gradle/caches/transforms-2/files-2.1/d606eb34fbe4f818c2c6052896a24d12/tracing-1.0.0 because:
[ ] Build cache is disabled
[ ] Skipping AarTransform: /home/greg/.gradle/caches/transforms-2/files-2.1/d606eb34fbe4f818c2c6052896a24d12/tracing-1.0.0 as it is up-to-date.
[ ] AarTransform (Thread[Execution worker for ':' Thread 2,5,main]) completed. Took 0.003 secs.
[ ] :app:mergeDebugNativeLibs (Thread[Execution worker for ':' Thread 2,5,main]) started.
[ ] > Task :app:mergeDebugNativeLibs UP-TO-DATE
[ ] Task :app:mergeDebugNativeLibs in app Starting
[ ] Transforming file /home/greg/n/flutter/platform_tests/scroll_overlay/build/app/intermediates/flutter/debug/libs.jar with JetifyTransform
[ ] Transforming file /home/greg/n/flutter/platform_tests/scroll_overlay/build/app/intermediates/flutter/debug/libs.jar with IdentityTransform
[ ] Caching disabled for task ':app:mergeDebugNativeLibs' because:
[ ] Build cache is disabled
[ ] Skipping task ':app:mergeDebugNativeLibs' as it is up-to-date.
[ ] Task :app:mergeDebugNativeLibs in app Finished
[ ] :app:mergeDebugNativeLibs (Thread[Execution worker for ':' Thread 2,5,main]) completed. Took 0.001 secs.
[ ] :app:stripDebugDebugSymbols (Thread[Execution worker for ':' Thread 2,5,main]) started.
[ ] > Task :app:stripDebugDebugSymbols UP-TO-DATE
[ ] Task :app:stripDebugDebugSymbols in app Starting
[ ] android.ndkVersion from module build.gradle is not set
[ ] ndk.dir in local.properties is not set
[ ] ANDROID_NDK_HOME environment variable is not set
[ ] sdkFolder is /home/greg/Android/Sdk
[ ] Considering /home/greg/Android/Sdk/ndk-bundle in SDK ndk-bundle folder
[ ] Considering /home/greg/Android/Sdk/ndk/21.4.7075529 in SDK ndk folder
[ ] Rejected /home/greg/Android/Sdk/ndk-bundle in SDK ndk-bundle folder because that location has no source.properties
[ ] No user requested version, choosing /home/greg/Android/Sdk/ndk/21.4.7075529 which is version 21.4.7075529
[ ] Caching disabled for task ':app:stripDebugDebugSymbols' because:
[ ] Build cache is disabled
[ ] Skipping task ':app:stripDebugDebugSymbols' as it is up-to-date.
[ ] Task :app:stripDebugDebugSymbols in app Finished
[ ] :app:stripDebugDebugSymbols (Thread[Execution worker for ':' Thread 2,5,main]) completed. Took 0.002 secs.
[ ] :app:packageDebug (Thread[Execution worker for ':' Thread 2,5,main]) started.
[ ] > Task :app:packageDebug UP-TO-DATE
[ ] Task :app:packageDebug in app Starting
[ ] Caching disabled for task ':app:packageDebug' because:
[ ] Build cache is disabled
[ ] Skipping task ':app:packageDebug' as it is up-to-date.
[ ] Task :app:packageDebug in app Finished
[ ] :app:packageDebug (Thread[Execution worker for ':' Thread 2,5,main]) completed. Took 0.002 secs.
[ ] :app:assembleDebug (Thread[Execution worker for ':' Thread 2,5,main]) started.
[ ] > Task :app:assembleDebug
[ ] Task :app:assembleDebug in app Starting
[ ] Caching disabled for task ':app:assembleDebug' because:
[ ] Build cache is disabled
[ ] Task ':app:assembleDebug' is not up-to-date because:
[ ] Task has not declared any outputs despite executing actions.
[ ] Task :app:assembleDebug in app Finished
[ ] :app:assembleDebug (Thread[Execution worker for ':' Thread 2,5,main]) completed. Took 0.098 secs.
[ ] BUILD SUCCESSFUL in 873ms
[ ] 31 actionable tasks: 4 executed, 27 up-to-date
[ +338 ms] Running Gradle task 'assembleDebug'... (completed in 1,438ms)
[ +2 ms] Calculate SHA1: LocalDirectory: '/home/greg/n/flutter/platform_tests/scroll_overlay/build/app/outputs/flutter-apk'/app-debug.apk
[ +579 ms] ✓ Built build/app/outputs/flutter-apk/app-debug.apk.
[ +1 ms] executing: /home/greg/Android/Sdk/build-tools/33.0.1/aapt dump xmltree /home/greg/n/flutter/platform_tests/scroll_overlay/build/app/outputs/flutter-apk/app-debug.apk
AndroidManifest.xml
[ +3 ms] Exit code 0 from: /home/greg/Android/Sdk/build-tools/33.0.1/aapt dump xmltree /home/greg/n/flutter/platform_tests/scroll_overlay/build/app/outputs/flutter-apk/app-debug.apk
AndroidManifest.xml
[ ] N: android=http://schemas.android.com/apk/res/android
E: manifest (line=2)
A: android:versionCode(0x0101021b)=(type 0x10)0x1
A: android:versionName(0x0101021c)="1.0" (Raw: "1.0")
A: android:compileSdkVersion(0x01010572)=(type 0x10)0x21
A: android:compileSdkVersionCodename(0x01010573)="13" (Raw: "13")
A: package="io.flutter.scroll_overlay" (Raw: "io.flutter.scroll_overlay")
A: platformBuildVersionCode=(type 0x10)0x21
A: platformBuildVersionName=(type 0x10)0xd
E: uses-sdk (line=7)
A: android:minSdkVersion(0x0101020c)=(type 0x10)0x10
A: android:targetSdkVersion(0x01010270)=(type 0x10)0x1c
E: uses-permission (line=14)
A: android:name(0x01010003)="android.permission.INTERNET" (Raw: "android.permission.INTERNET")
E: application (line=16)
A: android:label(0x01010001)="scroll_overlay" (Raw: "scroll_overlay")
A: android:icon(0x01010002)=@0x7f080000
A: android:debuggable(0x0101000f)=(type 0x12)0xffffffff
A: android:appComponentFactory(0x0101057a)="androidx.core.app.CoreComponentFactory" (Raw: "androidx.core.app.CoreComponentFactory")
E: activity (line=21)
A: android:theme(0x01010000)=@0x7f0a0000
A: android:name(0x01010003)="io.flutter.scroll_overlay.ScrollOverlayActivity" (Raw: "io.flutter.scroll_overlay.ScrollOverlayActivity")
A: android:exported(0x01010010)=(type 0x12)0xffffffff
A: android:launchMode(0x0101001d)=(type 0x10)0x1
A: android:configChanges(0x0101001f)=(type 0x11)0x40003fb4
A: android:windowSoftInputMode(0x0101022b)=(type 0x11)0x10
A: android:hardwareAccelerated(0x010102d3)=(type 0x12)0xffffffff
E: meta-data (line=36)
A: android:name(0x01010003)="io.flutter.embedding.android.NormalTheme" (Raw: "io.flutter.embedding.android.NormalTheme")
A: android:resource(0x01010025)=@0x7f0a0001
E: intent-filter (line=40)
E: action (line=41)
A: android:name(0x01010003)="android.intent.action.MAIN" (Raw: "android.intent.action.MAIN")
E: category (line=43)
A: android:name(0x01010003)="android.intent.category.LAUNCHER" (Raw: "android.intent.category.LAUNCHER")
E: meta-data (line=50)
A: android:name(0x01010003)="flutterEmbedding" (Raw: "flutterEmbedding")
A: android:value(0x01010024)=(type 0x10)0x2
E: uses-library (line=54)
A: android:name(0x01010003)="androidx.window.extensions" (Raw: "androidx.window.extensions")
A: android:required(0x0101028e)=(type 0x12)0x0
E: uses-library (line=57)
A: android:name(0x01010003)="androidx.window.sidecar" (Raw: "androidx.window.sidecar")
A: android:required(0x0101028e)=(type 0x12)0x0
[ ] Stopping app 'app-debug.apk' on Pixel 5.
[ ] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell am force-stop io.flutter.scroll_overlay
[ +79 ms] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell pm list packages io.flutter.scroll_overlay
[ +74 ms] package:io.flutter.scroll_overlay
[ +1 ms] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell cat /data/local/tmp/sky.io.flutter.scroll_overlay.sha1
[ +21 ms] 18a556dff430ae97d52ae3a1f0ce4362c002fc3f
[ ] Latest build already installed.
[ ] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell -x logcat -v time -t 1
[ +133 ms] --------- beginning of main
02-02 16:16:25.194 D/InsetsController( 4868): show(ime(), fromIme=true)
[ +6 ms] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F shell am start -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -f 0x20000000 --ez
enable-dart-profiling true --ez enable-checked-mode true --ez verify-entry-points true io.flutter.scroll_overlay/io.flutter.scroll_overlay.ScrollOverlayActivity
[ +65 ms] Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x20000000 cmp=io.flutter.scroll_overlay/.ScrollOverlayActivity (has extras) }
[ ] Waiting for observatory port to be available...
[ +381 ms] Observatory URL on device: http://127.0.0.1:43231/BeKDRJHAPZs=/
[ ] executing: /home/greg/Android/Sdk/platform-tools/adb -s 08171FDD40025F forward tcp:0 tcp:43231
[ +4 ms] 38865
[ ] Forwarded host port 38865 to device port 43231 for Observatory
[ +4 ms] Caching compiled dill
[ +37 ms] Connecting to service protocol: http://127.0.0.1:38865/BeKDRJHAPZs=/
[ +212 ms] Launching a Dart Developer Service (DDS) instance at http://127.0.0.1:0, connecting to VM service at http://127.0.0.1:38865/BeKDRJHAPZs=/.
[ +229 ms] DDS is listening at http://127.0.0.1:45645/mUYg-ZDncHM=/.
[ +93 ms] Successfully connected to service protocol: http://127.0.0.1:38865/BeKDRJHAPZs=/
[ +65 ms] DevFS: Creating new filesystem on the device (null)
[ +25 ms] DevFS: Created new filesystem on the device (file:///data/user/0/io.flutter.scroll_overlay/code_cache/scroll_overlayYHASOW/scroll_overlay/)
[ +1 ms] Updating assets
[ +61 ms] Syncing files to device Pixel 5...
[ +1 ms] Compiling dart to kernel with 0 updated files
[ ] Processing bundle.
[ ] <- recompile package:scroll_overlay/main.dart 5c5b1ae6-5cb1-49a2-b251-46283a17da67
[ ] <- 5c5b1ae6-5cb1-49a2-b251-46283a17da67
[ +1 ms] Bundle processing done.
[ +53 ms] Updating files.
[ ] DevFS: Sync finished
[ ] Syncing files to device Pixel 5... (completed in 57ms)
[ ] Synced 0.0MB.
[ ] <- accept
[ +5 ms] Connected to _flutterView/0x74f404e040.
[ +1 ms] Flutter run key commands.
[ ] r Hot reload. 🔥🔥🔥
[ ] R Hot restart.
[ ] h List all available interactive commands.
[ ] d Detach (terminate "flutter run" but leave application running).
[ ] c Clear the screen
[ ] q Quit (terminate the application on the device).
[ ] 💪 Running with sound null safety 💪
[ ] An Observatory debugger and profiler on Pixel 5 is available at: http://127.0.0.1:45645/mUYg-ZDncHM=/
[ +493 ms] The Flutter DevTools debugger and profiler on Pixel 5 is available at: http://127.0.0.1:9100?uri=http://127.0.0.1:45645/mUYg-ZDncHM=/
[+5070 ms] Application finished.
Analyzing scroll_overlay...
No issues found! (ran in 5.4s)
[✓] Flutter (Channel main, 3.7.0-13.0.pre.4, on Debian GNU/Linux 10 (buster) 4.19.0-23-amd64, locale en_US.UTF-8)
• Flutter version 3.7.0-13.0.pre.4 on channel main at /home/greg/n/flutter/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 33e896b475 (6 weeks ago), 2022-12-25 23:14:13 -0800
• Engine revision 339791f190
• Dart version 3.0.0 (build 3.0.0-35.0.dev)
• DevTools version 2.20.0
[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
• Android SDK at /home/greg/Android/Sdk
• Platform android-33, build-tools 33.0.1
• Java binary at: /home/greg/lib/android-studio-2020.3.1.24/jre/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
• All Android licenses accepted.
[✓] Chrome - develop for the web
• Chrome at google-chrome
[✓] Linux toolchain - develop for Linux desktop
• clang version 7.0.1-8+deb10u2 (tags/RELEASE_701/final)
• cmake version 3.13.4
• ninja version 1.8.2
• pkg-config version 0.29
[✓] Android Studio (version 2022.1)
• Android Studio at /home/greg/lib/android-studio-2020.3.1.24
• Flutter plugin version 71.2.4
• Dart plugin version 221.6096
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
[✓] Android Studio (version 2021.2)
• Android Studio at /opt/android-studio
• Flutter plugin version 71.1.2
• Dart plugin version 212.5744
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
[✓] VS Code (version 1.74.3)
• VS Code at /usr/share/code
• Flutter extension can be installed from:
🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[✓] Connected device (3 available)
• Pixel 5 (mobile) • 08171FDD40025F • android-arm64 • Android 13 (API 33)
• Linux (desktop) • linux • linux-x64 • Debian GNU/Linux 10 (buster) 4.19.0-23-amd64
• Chrome (web) • chrome • web-javascript • Google Chrome 109.0.5414.119
[✓] HTTP Host Availability
• All required HTTP hosts are available
• No issues found!