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「Composable Preview Scannerを使ってプレビュー画面のスクリーンショットを撮る」追加
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app/src/testAnswer/java/com/google/samples/apps/nowinandroid/MyComposePreviewTester.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| package com.google.samples.apps.nowinandroid | ||
|
|
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| import android.content.Context | ||
| import android.content.res.Configuration | ||
| import androidx.activity.ComponentActivity | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.CompositionLocalProvider | ||
| import androidx.compose.ui.platform.LocalDensity | ||
| import androidx.compose.ui.test.junit4.createAndroidComposeRule | ||
| import androidx.compose.ui.test.onRoot | ||
| import androidx.compose.ui.unit.Density | ||
| import androidx.test.core.app.ApplicationProvider | ||
| import com.github.takahirom.roborazzi.ComposePreviewTester | ||
| import com.github.takahirom.roborazzi.ExperimentalRoborazziApi | ||
| import com.github.takahirom.roborazzi.captureRoboImage | ||
| import com.google.samples.apps.nowinandroid.core.ui.DelayedPreview | ||
| import org.robolectric.RuntimeEnvironment | ||
| import org.robolectric.Shadows | ||
| import org.robolectric.shadows.ShadowDisplay | ||
| import sergio.sastre.composable.preview.scanner.android.AndroidComposablePreviewScanner | ||
| import sergio.sastre.composable.preview.scanner.android.AndroidPreviewInfo | ||
| import sergio.sastre.composable.preview.scanner.android.screenshotid.AndroidPreviewScreenshotIdBuilder | ||
| import sergio.sastre.composable.preview.scanner.core.preview.ComposablePreview | ||
| import sergio.sastre.composable.preview.scanner.core.preview.getAnnotation | ||
| import kotlin.math.roundToInt | ||
|
|
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| @OptIn(ExperimentalRoborazziApi::class) | ||
| class MyComposePreviewTester : ComposePreviewTester<AndroidPreviewInfo> { | ||
| val composeTestRule = createAndroidComposeRule<ComponentActivity>() | ||
| override fun options(): ComposePreviewTester.Options { | ||
| val testLifecycleOptions = ComposePreviewTester.Options.JUnit4TestLifecycleOptions( | ||
| testRuleFactory = { composeTestRule } | ||
| ) | ||
| return super.options().copy(testLifecycleOptions = testLifecycleOptions) | ||
| } | ||
|
|
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| override fun previews(): List<ComposablePreview<AndroidPreviewInfo>> { | ||
| val options = options() | ||
| return AndroidComposablePreviewScanner() | ||
| .scanPackageTrees(*options.scanOptions.packages.toTypedArray()) | ||
| .includeAnnotationInfoForAllOf(DelayedPreview::class.java) | ||
| .getPreviews() | ||
| } | ||
|
|
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| override fun test(preview: ComposablePreview<AndroidPreviewInfo>) { | ||
| val delay = preview.getAnnotation<DelayedPreview>()?.delay ?: 0L | ||
| val previewScannerFileName = | ||
| AndroidPreviewScreenshotIdBuilder(preview).build() | ||
| val fileName = | ||
| if (delay == 0L) previewScannerFileName else "${previewScannerFileName}_delay$delay" | ||
| val filePath = "$fileName.png" | ||
| preview.myApplyToRobolectricConfiguration() | ||
| composeTestRule.activityRule.scenario.recreate() | ||
| composeTestRule.apply { | ||
| try { | ||
| if (delay != 0L) { | ||
| mainClock.autoAdvance = false | ||
| } | ||
| setContent { | ||
| ApplyToCompositionLocal(preview) { | ||
| preview() | ||
| } | ||
| } | ||
| if (delay != 0L) { | ||
| mainClock.advanceTimeBy(delay) | ||
| } | ||
| onRoot().captureRoboImage(filePath = filePath) | ||
| } finally { | ||
| mainClock.autoAdvance = true | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| @Composable | ||
| fun ApplyToCompositionLocal( | ||
| preview: ComposablePreview<AndroidPreviewInfo>, | ||
| content: @Composable () -> Unit | ||
| ) { | ||
| val fontScale = preview.previewInfo.fontScale | ||
| val density = LocalDensity.current | ||
| val customDensity = | ||
| Density(density = density.density, fontScale = density.fontScale * fontScale) | ||
| CompositionLocalProvider(LocalDensity provides customDensity) { | ||
| content() | ||
| } | ||
|
|
||
| } | ||
|
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|
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| fun ComposablePreview<AndroidPreviewInfo>.myApplyToRobolectricConfiguration() { | ||
| val preview = this | ||
| // ナイトモード | ||
| when (preview.previewInfo.uiMode and Configuration.UI_MODE_NIGHT_MASK) { | ||
| Configuration.UI_MODE_NIGHT_YES -> RuntimeEnvironment.setQualifiers("+night") | ||
| Configuration.UI_MODE_NIGHT_NO -> RuntimeEnvironment.setQualifiers("+notnight") | ||
| else -> { /* do nothing */ | ||
| } | ||
| } | ||
|
|
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| // 画面サイズ | ||
| if (preview.previewInfo.widthDp != -1 && preview.previewInfo.heightDp != -1) { | ||
| setDisplaySize(preview.previewInfo.widthDp, preview.previewInfo.heightDp) | ||
| } | ||
| } | ||
|
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| private fun setDisplaySize(widthDp: Int, heightDp: Int) { | ||
| val context = ApplicationProvider.getApplicationContext<Context>() | ||
| val display = ShadowDisplay.getDefaultDisplay() | ||
| val density = context.resources.displayMetrics.density | ||
| widthDp.let { | ||
| val widthPx = (widthDp * density).roundToInt() | ||
| Shadows.shadowOf(display).setWidth(widthPx) | ||
| } | ||
| heightDp.let { | ||
| val heightPx = (heightDp * density).roundToInt() | ||
| Shadows.shadowOf(display).setHeight(heightPx) | ||
| } | ||
| } |
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3 changes: 3 additions & 0 deletions
3
core/ui/src/main/java/com/google/samples/apps/nowinandroid/core/ui/DelayedPreview.kt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,3 @@ | ||
| package com.google.samples.apps.nowinandroid.core.ui | ||
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| annotation class DelayedPreview(val delay: Long) |
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