🔧 By upgrading the version of Compose Multiplatform itself and the accompanying dependencies, we have addressed the issue of fling scrolling not working on iOS in Compose Multiplatform.

[Corvus400]

Issue

• close When I run the UI of Compose Multiplatform on my iPhone, the Fling Scroll function does not work. #937

Overview (Required)

• By upgrading the version of ComposeMultiplatform to 1.7.0-alpha02, fling scrolling will also work correctly in Compose Multiplatform for iOS.
• For this reason, we have increased the version of Compose Multiplatform.
• Due to a problem with CMP-6612, VRT will not function as it is.
• As a result of correspondence with takahirom, it was found that multiple responses were necessary, so we are taking action.

Links

• https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.7.0-alpha02
• https://youtrack.jetbrains.com/issue/CMP-5947
• https://youtrack.jetbrains.com/issue/CMP-6612/Android-context-is-not-initialized-when-retrieving-resources-in-Robolectric-unit-test

Movie (Optional)

Before	After
before.mov	after.mov

[Corvus400]

Task :app-android:testDevDebugUnitTest

KaigiAppTest > runTest[KaigiApp - when app is starting - it should show timetable items] FAILED
java.lang.IllegalStateException: Android context is not initialized. If it happens in the Preview mode then call PreviewContextConfigurationEffect() function.

What is PreviewContextConfigurationEffect...?🤔

[takahirom]

I think we can have Composable function something like this.

fun ProvideAndroidContextToComposeResource() {
  ProvideCompositionLocal(LocalInspectionMode to true) {
    PreviewContextConfigurationEffect()
  }
}

And I think we should invoke it here.

https://github.com/DroidKaigi/conference-app-2024/blob/main/core/testing/src/main/java/io/github/droidkaigi/confsched/testing/rules/RobotTestRule.kt#L143

https://github.com/DroidKaigi/conference-app-2024/blob/main/core/testing/src/main/java/io/github/droidkaigi/confsched/testing/DroidKaigiKmpPreviewTester.kt#L30

[takahirom]

We can refer to this issue.
https://youtrack.jetbrains.com/issue/CMP-6612/Android-context-is-not-initialized-when-retrieving-resources-in-Robolectric-unit-test

[Corvus400]

@takahirom
Thank you for teaching me! 🙇
When I tried the following, unfortunately, it seemed that the processing would not proceed with scrolling or swipe-type methods. 😭

package io.github.droidkaigi.confsched.testing

import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.ui.platform.LocalInspectionMode

@Composable
fun ProvideAndroidContextToComposeResource(content: @Composable () -> Unit) {
    CompositionLocalProvider(LocalInspectionMode provides true) {
        content()
    }
}

    fun setContent(content: @Composable () -> Unit) {
        val repositoryProvider = EntryPoints.get(
            composeTestRule.activity.application,
            RepositoryProviderEntryPoint::class.java,
        )
            .getRepositoryProvider()
        composeTestRule.setContent {
            repositoryProvider.Provide {
                ProvideAndroidContextToComposeResource {
                    content()
                }
            }
        }
    }

    override fun test(preview: ComposablePreview<JvmAnnotationInfo>) {
        captureRoboImage("${preview.methodName}.png") {
            println(preview.methodName)
            ProvideAndroidContextToComposeResource {
                preview()
            }
        }
    }

[takahirom]

I think we need to do it something like this. I think we also need to invoke PreviewContextConfigurationEffect

    override fun test(preview: ComposablePreview<JvmAnnotationInfo>) {
        captureRoboImage("${preview.methodName}.png") {
            println(preview.methodName)
            ProvideAndroidContextToComposeResource()
            preview()
        }
    }

https://github.com/JetBrains/compose-multiplatform/blob/e3a78f3f90b4cb9293dfe3bc1d2e7b94ce317fdf/components/resources/library/src/androidMain/kotlin/org/jetbrains/compose/resources/AndroidContextProvider.kt#L36

[Corvus400]

@takahirom
Since you can't directly refer to the PreviewContextConfigurationEffect from the test module, I tried writing the following code temporarily in the model module, etc., but unfortunately, it seems that the scrolling-related test methods will never end. 😭

package io.github.droidkaigi.confsched.model

import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.ui.platform.LocalInspectionMode
import org.jetbrains.compose.resources.ExperimentalResourceApi
import org.jetbrains.compose.resources.PreviewContextConfigurationEffect

@OptIn(ExperimentalResourceApi::class)
@Composable
fun ProvideAndroidContextToComposeResource() {
    CompositionLocalProvider(LocalInspectionMode provides true) {
        PreviewContextConfigurationEffect()
    }
}

    fun setContent(content: @Composable () -> Unit) {
        val repositoryProvider = EntryPoints.get(
            composeTestRule.activity.application,
            RepositoryProviderEntryPoint::class.java,
        )
            .getRepositoryProvider()
        composeTestRule.setContent {
            repositoryProvider.Provide {
                ProvideAndroidContextToComposeResource()
                content()
            }
        }
    }

    override fun test(preview: ComposablePreview<JvmAnnotationInfo>) {
        captureRoboImage("${preview.methodName}.png") {
            println(preview.methodName)
            ProvideAndroidContextToComposeResource()
            preview()
        }
    }

[takahirom]

Thanks. Could you remove this and try again? I think we need
to use compose-foundation-1.8.0-alpha-01 to solve the problem.
https://github.com/DroidKaigi/conference-app-2024/blob/main/build.gradle.kts#L30

[Corvus400]

@takahirom
Commenting out force(“androidx.compose.foundation:foundation:1.6.8”) did not change the result.
So, I tried changing it to force(“androidx.compose.foundation:foundation:1.8.0-alpha01”), and some tests, such as AboutScreenTest, now pass. 👍

However, it seems that the following errors are still occurring in KaigiAppTest.kt, etc. 🤔

D/LifecycleMonitor: Lifecycle status change: io.github.droidkaigi.confsched.MainActivity@a3a3b34 in: CREATED
V/ActivityScenario: Update currentActivityStage to CREATED, currentActivity=io.github.droidkaigi.confsched.MainActivity@a3a3b34
D/LifecycleMonitor: Lifecycle status change: io.github.droidkaigi.confsched.MainActivity@a3a3b34 in: STARTED
V/ActivityScenario: Update currentActivityStage to STARTED, currentActivity=io.github.droidkaigi.confsched.MainActivity@a3a3b34
D/LifecycleMonitor: Lifecycle status change: io.github.droidkaigi.confsched.MainActivity@a3a3b34 in: RESUMED
V/ActivityScenario: Update currentActivityStage to RESUMED, currentActivity=io.github.droidkaigi.confsched.MainActivity@a3a3b34

Android context is not initialized. If it happens in the Preview mode then call PreviewContextConfigurationEffect() function.
java.lang.IllegalStateException: Android context is not initialized. If it happens in the Preview mode then call PreviewContextConfigurationEffect() function.

[takahirom]

KaigiAppTest desn't use the setContent and we can't insert the Android context. Do you have any idea to do this? We might have to have another activity to setting the context before the test.

[Corvus400]

@takahirom
Once I had created the TestActivity, I thought I would have to keep it the same as the MainActivity's processing at all times, so I created the KaigiAppCompositionLocalProvider as follows and tried to use it in the MainActivity.
The locations(package) are temporary.

It seems that the following issues have been addressed.

1. Test code with scrolling
2. Test code that does not use setContent

However, there seems to be a problem with the test for the profile card at the end. 🤔

package io.github.droidkaigi.confsched.model

import android.os.Build
import androidx.compose.runtime.Composable
import androidx.compose.runtime.CompositionLocalProvider
import androidx.compose.runtime.ProvidedValue

@Composable
inline fun KaigiAppCompositionLocalProvider(
    locals:ProvidedValue<*>,
    crossinline content: @Composable () -> Unit,
) {
    CompositionLocalProvider(
        locals,
    ) {
        if ("robolectric" == Build.FINGERPRINT) {
            ProvideAndroidContextToComposeResource()
        }
        content()
    }
}

KaigiAppCompositionLocalProvider(
                locals = LocalClock provides clockProvider.clock(),
            ) {
                repositoryProvider.Provide {
                    KaigiApp(
                        windowSize = windowSize,
                        fontFamily = fontFamily,
                        displayFeatures = displayFeatures,
                    )
                }
            }

ProfileCardScreenTest > runTest[ProfileCardScreen - when profile card is exists - it should show card screen] STARTED

ProfileCardScreenTest > runTest[ProfileCardScreen - when profile card is exists - it should show card screen] FAILED
    java.lang.IllegalArgumentException: Software rendering doesn't support drawRenderNode
        at android.graphics.Canvas.drawRenderNode(Canvas.java:2329)
        at androidx.compose.ui.graphics.layer.GraphicsLayerV29.draw(GraphicsLayerV29.android.kt:259)
        at androidx.compose.ui.graphics.layer.GraphicsLayer.draw$ui_graphics_release(AndroidGraphicsLayer.android.kt:536)
        at androidx.compose.ui.graphics.layer.LayerSnapshotV21.toBitmap(LayerSnapshot.android.kt:116)
        at androidx.compose.ui.graphics.layer.GraphicsLayer.toImageBitmap(AndroidGraphicsLayer.android.kt:827)
        at io.github.droidkaigi.confsched.profilecard.component.CaptureableCardFrontKt$BackgroundCapturableCardFront$1$1.invokeSuspend(CaptureableCardFront.kt:45)
        at _COROUTINE._BOUNDARY._(CoroutineDebugging.kt:42)
        at io.github.droidkaigi.confsched.testing.coroutines.RunTestWithLoggingKt$runTestWithLogging$1.invokeSuspend(RunTestWithLogging.kt:17)
        at kotlinx.coroutines.test.TestBuildersKt__TestBuildersKt$runTest$2$1$1.invokeSuspend(TestBuilders.kt:316)

        Caused by:
        java.lang.IllegalArgumentException: Software rendering doesn't support drawRenderNode

[takahirom]

Although I think there is some room for improvement in the KaigiAppCompositionLocalProvider, I believe it is good to have it in production with isTest().
Could you push the changes you have? For this Software rendering doesn't support drawRenderNode, test.systemProperties["robolectric.pixelCopyRenderMode"] = "hardware" should work.

conference-app-2024/core/droidkaigiui/src/androidMain/kotlin/io/github/droidkaigi/confsched/droidkaigiui/TestEnvironment.android.kt

Line 5 in bab8c00

actual fun isTest(): Boolean {

[Corvus400]

@takahirom
I understand. 🫡
Let me check before I start working. 🙇
The current testing module is only the main module, so I think it will be necessary to change to the KMP configuration in order to place the processing to be added this time.
Is it okay to make this change?
I think that it is necessary to change the testing module to a KMP configuration and add androidMain, because it is inappropriate to place the processing that has been added this time in core:model at least.
(The PreviewContextConfigurationEffect can be referenced from androidMain, but not from main.)

[takahirom]

I'm fine with having PreviewContextConfigurationEffect in the core/droidkaigiui's main or somewhere else.
The testing module is a bit challenging to manage since we could encounter dependencies like this:
feature:session(androidUnitTest sourceset) -> core:testing(main (android) sourceset) -> feature:session(androidMain and commonMain sourceSet).
I think it is okay to make testing module a KMP module, but we might face potential issues with minor use cases.

[Corvus400]

@takahirom
I see... At this point, I don't want to embed the possibility of creating a new bug that is difficult to fix, so I will not use the KMP configuration.

[Corvus400]

@takahirom
Excuse me, let me ask a question. 🙇

For this Software rendering doesn't support drawRenderNode, test.systemProperties[“robolectric.pixelCopyRenderMode”] = “hardware” should work.

This part has already been set in Android/KmpRoborazziPlugin, so there should be no need to add anything in this update, right?

conference-app-2024/build-logic/src/main/kotlin/io/github/droidkaigi/confsched/primitive/KmpRoborazziPlugin.kt

Lines 30 to 31 in bab8c00

	test.systemProperties["robolectric.pixelCopyRenderMode"] =
	"hardware"

conference-app-2024/build-logic/src/main/kotlin/io/github/droidkaigi/confsched/primitive/AndroidRoborazziPlugin.kt

Line 27 in bab8c00

test.systemProperties["robolectric.pixelCopyRenderMode"] = "hardware"

[takahirom]

Yes, I think we need to create an issue in the Robolectric repository. But for now, how about using a try-catch block for toBitmap and adding a FIXME comment?

[github-actions]

Snapshot diff report

File name	Image
SearchScreenTest[Sea rchScreen - when ser ver is operational - when filter languag e chip click - it sh ould show drop down menu]_compare.png
SearchScreenTest[Sea rchScreen - when ser ver is operational - when filter categor y chip click - it sh ould show drop down menu]_compare.png
TimetableItemDetailS creenTest[TimetableI temDetailScreen - wh en server is operati onal available both asset - when launch - it should display both assets]_compare .png
TimetableItemDetailS creenTest[TimetableI temDetailScreen - wh en server is operati onal available only slide asset - when l aunch - it should di splay only slide ass ets]_compare.png
TimetableItemDetailS creenTest[TimetableI temDetailScreen - wh en server is operati onal available only video asset - when l aunch - it should on ly display video ass ets]_compare.png
TimetableScreenTest[ TimetableScreen - wh en server is down - it should show error message]_compare.pn g
TimetableItemDetailS creenTest[TimetableI temDetailScreen - wh en server is operati onal - when launch - when scroll to bott om - it should not d isplay both assets]_ compare.png
SearchScreenTest[Sea rchScreen - when ser ver is operational - when filter day chi p click - it should show drop down menu] _compare.png
TimetableScreenTest[ TimetableScreen - wh en font scale is lar ge - it should show title in a single li ne]_compare.png
SearchScreenTest[Sea rchScreen - when dev ice is tablet - inpu t search word to Tex tField - it should s how search word and filtered items]_comp are.png
SponsorsScreenPrevie w_compare.png
SponsorsScreenTest[S ponsorsScreen - when server is operation al - when launch - w hen scroll to scroll Bottom - it should display supporters s ponsors]_compare.png
SponsorsScreenTest[S ponsorsScreen - when server is operation al - when launch - i t should display pla tinum sponsors]_comp are.png
SponsorsScreenTest[S ponsorsScreen - when server is operation al - when launch - w hen scroll to gold s ponsors header - it should display gold sponsors]_compare.pn g
SponsorsScreenTest[S ponsorsScreen - when server is down - wh en launch - it shoul d does not show spon sors and show snackb ar]_compare.png
StaffScreenTest[Staf fScreen - when serve r is operational - w hen server is down - when launch - it sh ould does not show s taff and show snackb ar]_compare.png
StaffScreenTest[Staf fScreen - when serve r is operational - w hen launch - when sc roll to index 10 - i t should show staffs ]_compare.png
StaffScreenTest[Staf fScreen - when serve r is operational - w hen launch - it shou ld show first and se cond staffs]_compare .png
StaffScreenPreview_c ompare.png
EventMapScreenTest[E ventMapScreenRobot - when server is oper ational - it should ensure that the room types for Giraffe a re displayed.]_compa re.png
EventMapScreenTest[E ventMapScreenRobot - when server is oper ational - it should ensure that the room types for Hedgehog are displayed.]_comp are.png
EventMapScreenTest[E ventMapScreenRobot - when server is oper ational - it should ensure that the room types for Flamingo are displayed.]_comp are.png
EventMapScreenTest[E ventMapScreenRobot - when server is oper ational - it should ensure that the room types for Iguana ar e displayed.]_compar e.png
EventMapScreenTest[E ventMapScreenRobot - when server is oper ational - it should ensure that the room types for Jellyfish are displayed.]_com pare.png
EventMapScreenTest[E ventMapScreenRobot - when server is erro r - it should show e rror message]_compar e.png
EventMapScreenPrevie w_compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt to horizon tal - it should show card in horizontal] _compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt both axes out of bounds - it s hould keep last vali d orientation]_compa re.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt roll out o f bounds - it should keep last valid rol l]_compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - when cli ck edit button - if all required fields are filled in - it s hould make sure the Create button is act ivated]_compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - it shoul d show card screen]_ compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - flip pro file card - it shoul d back side of the p rofile card is displ ayed]_compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - when cli ck edit button - whe n if a required fiel d has not been fille d in - it should mak e sure the Create bu tton is deactivated] _compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt to upper b ound - it should sho w card at upper boun d]_compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt pitch out of bounds - it shoul d keep last valid pi tch]_compare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt to opposit e boundary - it shou ld show card at oppo site boundary]_compa re.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt to mid-ran ge - it should show card at mid-range]_c ompare.png
ProfileCardScreenTes t[ProfileCardScreen - when profile card is exists - tilt tes ts - tilt to boundar y - it should show c ard at boundary]_com pare.png
SettingsScreenTest[S ettingsScreen - when launch use font dot gothic - when click use font item - whe n click dot gothic f ont - it should sele cted dot gothic font ]_compare.png
SettingsScreenTest[S ettingsScreen - when launch use font dot gothic - it should show settings conten ts]_compare.png
SettingsScreenTest[S ettingsScreen - when launch use font dot gothic - when click use font item - it should show availabl e fonts]_compare.png
SettingsScreenTest[S ettingsScreen - when launch use font def ault system font - w hen click use font i tem - when click dot gothic font - it sh ould selected dot go thic font]_compare.p ng
SettingsScreenPrevie w_compare.png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when la unch - it should sho w contributors total count]_compare.png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when la unch - it should sho w first and second c ontributors]_compare .png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when la unch - when scroll t o index 10 - it shou ld show contributors ]_compare.png
ContributorsScreenTe st[ContributorsScree n - when server is o perational - when se rver is down - when launch - it should d oes not show contrib utor and show snackb ar]_compare.png
AboutScreenTest[Abou tScreen - when launc h - when scroll to o thers section - it s hould show others co ntents]_compare.png

[takahirom]

I'll merge this PR and release version 1.3 today. Thank you for addressing many kinds of issues.

[Corvus400]

Sorry for asking so many questions throughout the day.🙇‍♂️