kotlinlang #compose

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compose

Vinay Gaba

08/26/2020, 5:34 PM

Definitely a weird flex but putting it out there 🙄 https://kotlinlang.slack.com/archives/CJLTWPH7S/p1591822405051900?thread_ts=1591822392.051800

🥇 8

😂 1

🎯 11

Davide Giuseppe Farella

08/26/2020, 6:20 PM

Any clue what this is happening? 😞

java.lang.NullPointerException: BitmapFactory.decodeResource(res, resId) must not be null

gvetri

08/26/2020, 6:36 PM

I need to recompose myself after watching those three videos. I’m excited. Thanks for the effort and congrats to the team 👏

Colton Idle

08/26/2020, 7:02 PM

Haven't used compose heavily, but watching @nickbutcher video from today. You can have a padding modifier, then a background, then padding in order to "simulate" margin. Does that mean margin is non-existent anymore?

Javier

08/26/2020, 7:06 PM

🔘 Press the button to release AS canary 08 in Toolbox

🔘 24

➕ 20

Zach Klippenstein (he/him) [MOD]

08/26/2020, 8:53 PM

Not sure if this is an issue with snapshotting, with subcomposition, or if I’m doing something wrong, but subcomposing inside of android views seems to be broken again (dev17, alpha01): https://issuetracker.google.com/issues/166482486

Timo Drick

08/26/2020, 10:55 PM

When updateing to Android Studio 4.2 canary 8 and gradle build tools 4.2.0-alpha8 i get following compiler error:

LiveLiterals$ComposeWidgetsKt.class: D8: com.android.tools.r8.errors.b: Space characters in SimpleName 'Int$arg-0$call-layout$branch$if$fun-measure$class-$no name provided$$arg-0$call-then$fun-visibility' are not allowed prior to DEX version 040

Compiling with

classpath 'com.android.tools.build:gradle:4.2.0-alpha07'

works fine. also upgraded to gradle 6.6-rc-6

Guy Bieber

08/26/2020, 11:33 PM

2020-08-26 16:24:11.370 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:11.415 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:12.568 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:12.700 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:13.245 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:13.334 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:15.820 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:16.011 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:16.654 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:16.719 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:17.704 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:17.869 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:18.280 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:18.361 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:18.713 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:18.786 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:18.879 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:18.944 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:21.252 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:21.329 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:22.348 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:22.411 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:23.615 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:23.731 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:24.293 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:24.349 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:25.177 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:25.222 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:35.881 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:35.944 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:36.163 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:36.195 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:37.669 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:37.804 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:38.484 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:38.547 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:40.726 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:40.841 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:41.577 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:41.649 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:45.005 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:45.190 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:45.439 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:45.667 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:46.173 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:46.258 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:46.409 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:46.483 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1
2020-08-26 16:24:46.662 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 0
2020-08-26 16:24:46.724 2160-2160/com.nikolamotor.nikolamotor D/ViewRootImpl@7a9a5aa[MainActivity]: ViewPostIme pointer 1

You have to click above them to make a button below interact. Here is the textfield I am using:

@Composable
    fun TextFieldWithHint(
        text: String,
        hint: @Composable() () -> Unit,
        onDone: (String) -> Unit = {},
        backgroundColor: Color = nikolaColors.color19,
        textColor : Color = nikolaColors.White,
        fontSize : TextUnit =  18.sp,
        keyboardType: KeyboardType = KeyboardType.Text,
        visualTransformation: VisualTransformation = VisualTransformation.None,
        cursorColor : Color = nikolaColors.White
    ) {
//        var mText by savedInstanceState { text }
        val mText =
            savedInstanceState(saver = TextFieldValue.Saver) { TextFieldValue(text) }
        //mText.value = text

        OutlinedTextField(
            value = mText.value,
            label = hint,
            textStyle = TextStyle (
                color = textColor,
                fontSize = fontSize
            ),
            keyboardType = keyboardType,
            imeAction = ImeAction.Done,
            onValueChange = {
                mText.value = it
            },
            onImeActionPerformed = { action, softKeyboard ->
                if (action == ImeAction.Done) {
                    //todo remove hack when android fixes it
                    //On older phones the shift key shows up as 00 in the string
                    val char : Char = 0x00.toChar()
                    var str = mText.value.text.replace("${char}", "")
                    onDone(str) //.text.substring(state.value.selection))
                    hideKeyboard()
                }
            },
            activeColor = cursorColor,
            visualTransformation = visualTransformation
        )
    }

Crazy… It looks like everything is off by an inch. This seems to happen after editing two text fields on the login screen. It seems every time the keyboard comes up and pushes a field up so it is editable the screen gets offset by that amount. Google?

Foso

08/27/2020, 5:28 AM

Congratulations for the alpha! Will there still be a new Compose version coming out every two weeks or does this change now?

Jan Skrasek

08/27/2020, 6:16 AM

Compose material buttons seems not to have shadow animation (elevation) when in pressed state. Is it a missing implementation or a change in Material theming?

Jan Skrasek

08/27/2020, 6:20 AM

I cannot find any supportfor all-caps in TextStyle. Is it just unimplemented, implemented elsewhere, or a mental change (i.e. I should transform myself)?

Archie

08/27/2020, 6:45 AM

I was wondering whether there is a State Management Architecture recommend for Jetpack Compose. Is there?

Klaas Kabini

08/27/2020, 6:53 AM

java.lang.NoClassDefFoundError: kotlin/KotlinNothingValueException
	at com.android.build.gradle.options.BooleanOption.parse(BooleanOption.kt:427)
	at com.android.build.gradle.options.BooleanOption.parse(BooleanOption.kt:28)
	at com.android.build.gradle.options.ProjectOptions$OptionValue.lambda$setValueForUseAtConfiguration$0(ProjectOptions.java:365)
	at org.gradle.api.internal.provider.DefaultProvider.calculateOwnValue(DefaultProvider.java:66)
	at org.gradle.api.internal.provider.AbstractMinimalProvider.getOrNull(AbstractMinimalProvider.java:93)
	at com.android.build.gradle.options.ProjectOptions$OptionValue.getValueForUseAtConfiguration(ProjectOptions.java:345)
	at com.android.build.gradle.options.ProjectOptions$OptionValue.access$000(ProjectOptions.java:331)
	at com.android.build.gradle.options.ProjectOptions.get(ProjectOptions.java:186)
	at com.android.build.gradle.options.SyncOptions.getModelQueryMode(SyncOptions.java:41)
	at com.android.build.gradle.internal.plugins.BasePlugin.createProjectServices(BasePlugin.java:868)
	at com.android.build.gradle.internal.plugins.BasePlugin.basePluginApply(BasePlugin.java:262)
	at com.android.build.gradle.internal.plugins.BasePlugin.lambda$apply$0(BasePlugin.java:246)
	at com.android.build.gradle.internal.crash.CrashReporting.runAction(crash_reporting.kt:27)
	at com.android.build.gradle.internal.plugins.BasePlugin.apply(BasePlugin.java:244)
	at com.android.build.gradle.internal.plugins.BasePlugin.apply(BasePlugin.java:136)
	at org.gradle.api.internal.plugins.ImperativeOnlyPluginTarget.applyImperative(ImperativeOnlyPluginTarget.java:43)
	at org.gradle.api.internal.plugins.RuleBasedPluginTarget.applyImperative(RuleBasedPluginTarget.java:51)
	at org.gradle.api.internal.plugins.DefaultPluginManager.addPlugin(DefaultPluginManager.java:177)
	at org.gradle.api.internal.plugins.DefaultPluginManager.access$100(DefaultPluginManager.java:51)
	at org.gradle.api.internal.plugins.DefaultPluginManager$AddPluginBuildOperation.run(DefaultPluginManager.java:272)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:395)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:387)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:242)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:150)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:84)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.api.internal.plugins.DefaultPluginManager.lambda$doApply$0(DefaultPluginManager.java:157)
	at org.gradle.configuration.internal.DefaultUserCodeApplicationContext.apply(DefaultUserCodeApplicationContext.java:43)
	at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:156)
	at org.gradle.api.internal.plugins.DefaultPluginManager.apply(DefaultPluginManager.java:136)
	at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.applyType(DefaultObjectConfigurationAction.java:160)
	at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.access$200(DefaultObjectConfigurationAction.java:42)
	at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction$3.run(DefaultObjectConfigurationAction.java:97)
	at org.gradle.api.internal.plugins.DefaultObjectConfigurationAction.execute(DefaultObjectConfigurationAction.java:183)
	at org.gradle.api.internal.project.AbstractPluginAware.apply(AbstractPluginAware.java:49)
	at com.android.build.gradle.LibraryPlugin.apply(LibraryPlugin.kt:29)
	at com.android.build.gradle.LibraryPlugin.apply(LibraryPlugin.kt:25)
	at org.gradle.api.internal.plugins.ImperativeOnlyPluginTarget.applyImperative(ImperativeOnlyPluginTarget.java:43)
	at org.gradle.api.internal.plugins.RuleBasedPluginTarget.applyImperative(RuleBasedPluginTarget.java:51)
	at org.gradle.api.internal.plugins.DefaultPluginManager.addPlugin(DefaultPluginManager.java:177)
	at org.gradle.api.internal.plugins.DefaultPluginManager.access$100(DefaultPluginManager.java:51)
	at org.gradle.api.internal.plugins.DefaultPluginManager$AddPluginBuildOperation.run(DefaultPluginManager.java:272)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:395)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:387)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:242)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:150)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:84)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.api.internal.plugins.DefaultPluginManager.lambda$doApply$0(DefaultPluginManager.java:157)
	at org.gradle.configuration.internal.DefaultUserCodeApplicationContext.apply(DefaultUserCodeApplicationContext.java:43)
	at org.gradle.api.internal.plugins.DefaultPluginManager.doApply(DefaultPluginManager.java:156)
	at org.gradle.api.internal.plugins.DefaultPluginManager.apply(DefaultPluginManager.java:127)
	at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.lambda$applyPlugins$0(DefaultPluginRequestApplicator.java:127)
	at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugin(DefaultPluginRequestApplicator.java:176)
	at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.lambda$applyPlugins$1(DefaultPluginRequestApplicator.java:125)
	at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugins(DefaultPluginRequestApplicator.java:125)
	at org.gradle.plugin.use.internal.DefaultPluginRequestApplicator.applyPlugins(DefaultPluginRequestApplicator.java:121)
	at org.gradle.kotlin.dsl.provider.PluginRequestsHandler.handle(PluginRequestsHandler.kt:48)
	at org.gradle.kotlin.dsl.provider.StandardKotlinScriptEvaluator$InterpreterHost.applyPluginsTo(KotlinScriptEvaluator.kt:198)
	at org.gradle.kotlin.dsl.execution.Interpreter$ProgramHost.applyPluginsTo(Interpreter.kt:360)
	at Program.execute(Unknown Source)
	at org.gradle.kotlin.dsl.execution.Interpreter$ProgramHost.eval(Interpreter.kt:502)
	at org.gradle.kotlin.dsl.execution.Interpreter.eval(Interpreter.kt:178)
	at org.gradle.kotlin.dsl.provider.StandardKotlinScriptEvaluator.evaluate(KotlinScriptEvaluator.kt:120)
	at org.gradle.kotlin.dsl.provider.KotlinScriptPluginFactory$create$1.invoke(KotlinScriptPluginFactory.kt:51)
	at org.gradle.kotlin.dsl.provider.KotlinScriptPluginFactory$create$1.invoke(KotlinScriptPluginFactory.kt:36)
	at org.gradle.kotlin.dsl.provider.KotlinScriptPlugin.apply(KotlinScriptPlugin.kt:34)
	at org.gradle.configuration.BuildOperationScriptPlugin$1.run(BuildOperationScriptPlugin.java:65)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:395)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:387)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:242)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:150)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:84)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.configuration.BuildOperationScriptPlugin.lambda$apply$0(BuildOperationScriptPlugin.java:62)
	at org.gradle.configuration.internal.DefaultUserCodeApplicationContext.apply(DefaultUserCodeApplicationContext.java:43)
	at org.gradle.configuration.BuildOperationScriptPlugin.apply(BuildOperationScriptPlugin.java:62)
	at org.gradle.configuration.project.BuildScriptProcessor$1.run(BuildScriptProcessor.java:45)
	at org.gradle.internal.Factories$1.create(Factories.java:26)
	at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withMutableState(DefaultProjectStateRegistry.java:245)
	at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withMutableState(DefaultProjectStateRegistry.java:226)
	at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:42)
	at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:26)
	at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:35)
	at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject$1.run(LifecycleProjectEvaluator.java:102)
	at org.gradle.internal.Factories$1.create(Factories.java:26)
	at org.gradle.internal.work.DefaultWorkerLeaseService.withLocks(DefaultWorkerLeaseService.java:180)
	at org.gradle.internal.work.StopShieldingWorkerLeaseService.withLocks(StopShieldingWorkerLeaseService.java:40)
	at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withProjectLock(DefaultProjectStateRegistry.java:271)
	at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withMutableState(DefaultProjectStateRegistry.java:265)
	at org.gradle.api.internal.project.DefaultProjectStateRegistry$ProjectStateImpl.withMutableState(DefaultProjectStateRegistry.java:226)
	at org.gradle.configuration.project.LifecycleProjectEvaluator$EvaluateProject.run(LifecycleProjectEvaluator.java:91)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:395)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:387)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:157)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:242)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:150)
	at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:84)
	at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
	at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:63)
	at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:710)
	at org.gradle.api.internal.project.DefaultProject.evaluate(DefaultProject.java:145)
	at org.gradle.execution.TaskPathProjectEvaluator.configure(TaskPathProjectEvaluator.java:36)
	at org.gradle.execution.TaskPathProjectEvaluator.configureHierarchy(TaskPathProjectEvaluator.java:64)
	
Caused by: java.lang.ClassNotFoundException: kotlin.KotlinNothingValueException
	... 192 more

Madhava

08/27/2020, 8:08 AM

@Zsolt Can I get a PR? https://github.com/zsoltk/compose-router/pull/39 I added alpha01 support to compose router.

Javier

08/27/2020, 8:44 AM

Until Compose is stable, the Material Design website will not update referencing the widgets that are already available?

andylamax

08/27/2020, 10:08 AM

Is there an official routing lib for compose?

florent

08/27/2020, 1:11 PM

Hi, on the compose examples, what's the best one to look at if we want to see an app that adapt it UI for tablet?

Vinay Gaba

08/27/2020, 4:38 PM

Before yesterday’s launch: Google, why aren’t you giving us more documentation 😭 After yesterday’s launch: Google, why are you giving us so much documentation 😭

😂 8

☝️ 4

mattinger

08/27/2020, 5:04 PM

Apologize if this has been answered before, but i’m busy creating my own custom theme, modeling it after how MaterialTheme is done (our UX doesn’t use material design unfortunately). I’m defining my various color schemes, and one thing i’m struggling with is how to get colors from resource. MaterialTheme has all it’s colors defined in code, and i’m importing a library which has a colors.xml in it, and would like to take from there. Because the color pallete functions (like lightColors) are not composable, I can’t refer to the Ambient context.

Archie

08/27/2020, 5:16 PM

So in order to retain state across activity recreation (activity process death and restoration)

state

would need to be store in

var someState by savedInstanceState<String?> { ... }

but what if the state is inside a

LiveData

and is accessed as

var liveDataState by liveData.observeState()

How could I put this

liveDataState

inside

savedInstanceState

Jason Ostrander

08/27/2020, 6:57 PM

Is there a place to report issues with the codelabs? I’m working through the layouts codelab, and it references

HorizontalScroller

, which I believe is removed and should instead be

ScrollableRow

Guy Bieber

08/27/2020, 8:13 PM

Can we do z-level and parallax with compose?

Sergey Y.

08/27/2020, 10:11 PM

I'm sorry, I was late on today's Reddit Compose AMA. I just wanted to say thank you started to provide AMAs so often. This will strengthen the connection with the developer community. Keep it up. (and repost some questions 🤗_)_ My questions are: 1. Android App Widget, Notification, Slice. Does Compose soon or later will have support for them? 2. The state of Java in Android development? I love Kotlin. I understand that Compose is building on top of Kotlin compiler plugin API and Compose-Java interoperability is out of the question. But Android Java projects are doomed to use the legacy UI system. How do you see the future for the use of Java in android development? 3. The question that worries me a lot. Compose is positioned as an unbundled UI Framework which not depends on legacy

android.view.View

. It uses only

android.graphics.Canvas

to draw its own widgets. Which gives the ability to use the latest additions to the Compose Views on any android version. And it's basically true and fantastic to be free of some bugs on some android version in the legacy UI system. But... The only thing left unchanged, it is still blocking us to create rich UI experiences, the saturated elevation. It has Android API 28+ limitation 😞 Designers love to make rich UIs with a lot of fancy colorful shadows under the widgets. Ambient light, glow, neon, pulse... I have a hope Compose will provide the ability to implement its own Elevation provider as Modifier(or something else). Thank you.

david.bilik

08/28/2020, 6:54 AM

Why can’t I find AS 4.2 Canary 8 in Jetbrains Toolbox? 😞

🔘 7

Miguel Coleto

08/28/2020, 7:14 AM

Do we have to place

mutableStateOf

always inside of

remember

? It is not clear to me what is

remember

doing 🤔

Philip Blandford

08/28/2020, 8:15 AM

Having trouble building code that incudes a WebClient, using alpha01 and Canary 8: • com.android.tools.r8.errors.b: Space characters in SimpleName 'Boolean$fun-shouldOverrideUrlLoading$class-$no name provided$$val-client$fun-$anonymous$$arg-1$call-MyApplicationTheme$fun-$anonymous$$arg-1$call-setContent$fun-onCreate$class-MainActivity' are not allowed prior to DEX version 040

val client = object : WebViewClient() {
    override fun shouldOverrideUrlLoading(
      view: WebView,
      request: WebResourceRequest
    ): Boolean {
        view.loadUrl(request.url.toString())
        return true
    }
}

Victor Yakovlev

08/28/2020, 8:30 AM

How to set height in percent or weight in Column?

Nemanja Mladenović

08/28/2020, 8:34 AM

anyone know why can't I use property delegate here

Rafal

08/28/2020, 3:08 PM

Hi 👋 I just created a project with

Empty Compose Activity

and the preview is taking ages to load (and mostly fails to preview) event on the simplest composables. Is there any way to fix that?

oscarg798

08/28/2020, 3:34 PM

hi guys, has someone idea about what this error means

Class 'androidx.compose.runtime.Composable' is compiled by a new Kotlin compiler backend and cannot be loaded by the old compiler

Title

oscarg798

08/28/2020, 3:34 PM

hi guys, has someone idea about what this error means

Class 'androidx.compose.runtime.Composable' is compiled by a new Kotlin compiler backend and cannot be loaded by the old compiler

Leland Richardson [G]

08/28/2020, 3:40 PM

what is your gradle setup? This is an indication that you’re trying to compile your code with an older kotlin compiler than what compose runtime got compiled with. Make sure you’re using kotlin 1.4

oscarg798

08/28/2020, 3:43 PM

Yeah I’m using 1.4, min sdk 23

I ran the task failing with stacktrace, seems that I forgot to add

useIR = true

lets see if it works

yeah that was the issue

Leland Richardson [G]

08/28/2020, 3:49 PM

ah, that makes sense 👍

👍 2

Esmaeel Nabil

08/28/2020, 3:49 PM

useIR = true

what this means ? @Leland Richardson [G]

➕ 2

Leland Richardson [G]

08/28/2020, 3:50 PM

this has the kotlin compiler use the new IR backend that they’ve been working on. compose depends on this backend

buildFeatures { compose true }

should turn this on though

was this on a non-compose enabled module in your app?

Esmaeel Nabil

08/28/2020, 3:52 PM

for me ? no it’s in a compose project, but i just wanted to know the meaning of it, thanks.

oscarg798

08/28/2020, 3:53 PM

for me neither, I have viewBinding enabled but I’m trying to add compose to my project but has been a nightmare haha

Leland Richardson [G]

08/28/2020, 3:56 PM

ah. yeah, i’m not personally sure how well viewBinding and compose inter-mix. I think some others have tried it out but I have not

Mahdi

11/15/2020, 8:14 AM

@oscarg798 Hi I have same problem. I got this issue when try to check state value in break point. did you find any solution? My issue is inside composable functions. https://stackoverflow.com/questions/64842355/android-studio-canary-4-2-16-on-evaluate-variables-got-error-state-is-compiled

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