Jetpack Compose 공부 ~ 6주차
본 글은 개인적으로 Jetpack AndroidX Compose의 스터디한 내용을 정리하는 아카이브용입니다.
지극히 개인적인 의견입니다.
테스트 전제 조건
- Android Studio 4.2 Canary 16
- Jetpack Compose 1.0.0-alpha07
실험하는 소스 : https://github.com/Pluu/WebToon/compare/develop-compose
1. compose alpha08
https://developer.android.com/jetpack/androidx/versions/all-channel#december_2_2020
Support Kotlin 1.4.20
Library
- androidx.ui:ui-tooling → androidx.compose.ui:ui-tooling
Sample
https://github.com/android/compose-samples/pull/294
2. Layout Inspector
Layout Inspector 사용
AndroidComposeView 로 잡힙
https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/compose/ui/ui/src/androidMain/kotlin/androidx/compose/ui/platform/AndroidComposeView.kt
2020.11.29 에는 Layout Inspector는 동작하지 않음
해결되는 것으로 보이는 AOSP의 PR
1478828: Add Inspector Info to Modifier.clickable | https://android-review.googlesource.com/c/platform/frameworks/support/+/1478828
Inspector 내부 정의
/**
* Declare a just-in-time composition of a [Modifier] that will be composed for each element it
* modifies. [composed] may be used to implement **stateful modifiers** that have
* instance-specific state for each modified element, allowing the same [Modifier] instance to be
* safely reused for multiple elements while maintaining element-specific state.
*
* If [inspectorInfo] is specified this modifier will be visible to tools during development.
* Specify the name and arguments of the original modifier.
*
* Example usage:
* @sample androidx.compose.ui.samples.InspectorInfoInComposedModifierSample
* @sample androidx.compose.ui.samples.InspectorInfoInComposedModifierWithArgumentsSample
*
* [materialize] must be called to create instance-specific modifiers if you are directly
* applying a [Modifier] to an element tree node.
*/
fun Modifier.composed(
inspectorInfo: InspectorInfo.() -> Unit = NoInspectorInfo,
factory: @Composable Modifier.() -> Modifier
): Modifier = this.then(ComposedModifier(inspectorInfo, factory))
https://android.googlesource.com/platform/frameworks/support/+/androidx-master-dev/compose/ui/ui/src/commonMain/kotlin/androidx/compose/ui/ComposedModifier.kt#42
Inspector clickable Sample
@Composable
fun Modifier.clickable(
...
) = composed(
factory = { ... },
inspectorInfo = debugInspectorInfo {
name = "clickable"
properties["enabled"] = enabled
properties["onClickLabel"] = onClickLabel
properties["onClick"] = onClick
properties["onDoubleClick"] = onDoubleClick
properties["onLongClick"] = onLongClick
properties["onLongClickLabel"] = onLongClickLabel
properties["indication"] = indication
properties["interactionState"] = interactionState
}
)
1478828: Add Inspector Info to Modifier.clickable | https://android-review.googlesource.com/c/platform/frameworks/support/+/1478828
Etc. Article
- Fully cross-platform Kotlin applications (almost)
- https://proandroiddev.com/fully-cross-platform-kotlin-applications-almost-29c7054f8f28
- 승욱님이 작업하시는 아키텍쳐의 그림과 비슷해보임
- Jetpack Compose Effect Handlers
- https://jorgecastillo.dev/jetpack-compose-effect-handlers
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