【问题标题】:Jetpack Compose Preview doesn't work with resources after changing a branch in git在 git 中更改分支后,Jetpack Compose Preview 无法使用资源
【发布时间】:2021-08-09 09:36:43
【问题描述】:

我在撰写预览时遇到了一个奇怪的问题。最近我在我的项目中添加了 compose。除非我切换到没有 compose 的旧分支,否则一切正常。改回 compose 分支后,预览停止工作。重新启动/无效/重建没有帮助。该代码在模拟器上运行良好。 我正在使用带有 Compose 1.0.0 的 Android Studio 北极狐稳定版 以下是依赖项:

    implementation "androidx.hilt:hilt-navigation-compose:1.0.0-alpha03"
    implementation "androidx.compose.ui:ui:$compose_version"
    implementation "androidx.compose.material:material:$compose_version"
    implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
    implementation "androidx.compose.runtime:runtime-livedata:$compose_version"
    debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
    androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
    implementation 'androidx.activity:activity-compose:1.3.0'
    implementation "androidx.lifecycle:lifecycle-viewmodel-compose:1.0.0-alpha07"

例如以下代码存在渲染问题:

@Preview
@Composable
fun PreviewMyScreen(){
    Image(painter = painterResource(id = R.drawable.ic_android_24dp), contentDescription = null)
}

android.content.res.Resources$NotFoundException: Could not resolve resource value: 0x7F08006C.
    at android.content.res.Resources_Delegate.throwException(Resources_Delegate.java:1153)
    at android.content.res.Resources_Delegate.throwException(Resources_Delegate.java:1129)
    at android.content.res.Resources_Delegate.throwException(Resources_Delegate.java:1133)
    at android.content.res.Resources_Delegate.getResourceValue(Resources_Delegate.java:921)
    at android.content.res.Resources_Delegate.getValue(Resources_Delegate.java:892)
    at android.content.res.Resources.getValue(Resources.java:1428)
    at androidx.compose.ui.res.PainterResources_androidKt.painterResource(PainterResources.android.kt:60)
    at com.roysolberg.android.datacounter.fragment.AppUsageDetailsNewActivityKt.PreviewMyScreen(AppUsageDetailsNewActivity.kt:70)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at androidx.compose.ui.tooling.CommonPreviewUtils.invokeComposableMethod(CommonPreviewUtils.kt:149)
    at androidx.compose.ui.tooling.CommonPreviewUtils.invokeComposableViaReflection$ui_tooling_release(CommonPreviewUtils.kt:188)
    at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1$composable$1.invoke(ComposeViewAdapter.kt:553)
    at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1$composable$1.invoke(ComposeViewAdapter.kt:551)
    at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1.invoke(ComposeViewAdapter.kt:590)
    at androidx.compose.ui.tooling.ComposeViewAdapter$init$3$1.invoke(ComposeViewAdapter.kt:546)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:215)
    at androidx.compose.ui.tooling.InspectableKt.Inspectable(Inspectable.kt:64)
    at androidx.compose.ui.tooling.ComposeViewAdapter$WrapPreview$1.invoke(ComposeViewAdapter.kt:495)
    at androidx.compose.ui.tooling.ComposeViewAdapter$WrapPreview$1.invoke(ComposeViewAdapter.kt:494)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:215)
    at androidx.compose.ui.tooling.ComposeViewAdapter.WrapPreview(ComposeViewAdapter.kt:490)
    at androidx.compose.ui.tooling.ComposeViewAdapter.access$WrapPreview(ComposeViewAdapter.kt:120)
    at androidx.compose.ui.tooling.ComposeViewAdapter$init$3.invoke(ComposeViewAdapter.kt:546)
    at androidx.compose.ui.tooling.ComposeViewAdapter$init$3.invoke(ComposeViewAdapter.kt:543)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.ui.platform.ComposeView.Content(ComposeView.android.kt:384)
    at androidx.compose.ui.platform.AbstractComposeView$ensureCompositionCreated$1.invoke(ComposeView.android.kt:228)
    at androidx.compose.ui.platform.AbstractComposeView$ensureCompositionCreated$1.invoke(ComposeView.android.kt:227)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:215)
    at androidx.compose.ui.platform.CompositionLocalsKt.ProvideCommonCompositionLocals(CompositionLocals.kt:148)
    at androidx.compose.ui.platform.AndroidCompositionLocals_androidKt$ProvideAndroidCompositionLocals$3.invoke(AndroidCompositionLocals.android.kt:114)
    at androidx.compose.ui.platform.AndroidCompositionLocals_androidKt$ProvideAndroidCompositionLocals$3.invoke(AndroidCompositionLocals.android.kt:113)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:215)
    at androidx.compose.ui.platform.AndroidCompositionLocals_androidKt.ProvideAndroidCompositionLocals(AndroidCompositionLocals.android.kt:106)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1$1$3.invoke(Wrapper.android.kt:162)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1$1$3.invoke(Wrapper.android.kt:161)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.runtime.CompositionLocalKt.CompositionLocalProvider(CompositionLocal.kt:215)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1$1.invoke(Wrapper.android.kt:161)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1$1.invoke(Wrapper.android.kt:144)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:107)
    at androidx.compose.runtime.internal.ComposableLambdaImpl.invoke(ComposableLambda.jvm.kt:34)
    at androidx.compose.runtime.ComposerKt.invokeComposable(Composer.kt:3330)
    at androidx.compose.runtime.ComposerImpl$doCompose$2$5.invoke(Composer.kt:2577)
    at androidx.compose.runtime.ComposerImpl$doCompose$2$5.invoke(Composer.kt:2573)
    at androidx.compose.runtime.SnapshotStateKt.observeDerivedStateRecalculations(SnapshotState.kt:540)
    at androidx.compose.runtime.ComposerImpl.doCompose(Composer.kt:2566)
    at androidx.compose.runtime.ComposerImpl.composeContent$runtime_release(Composer.kt:2517)
    at androidx.compose.runtime.CompositionImpl.composeContent(Composition.kt:476)
    at androidx.compose.runtime.Recomposer.composeInitial$runtime_release(Recomposer.kt:727)
    at androidx.compose.runtime.CompositionImpl.setContent(Composition.kt:432)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:144)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:135)
    at androidx.compose.ui.platform.AndroidComposeView.setOnViewTreeOwnersAvailable(AndroidComposeView.android.kt:727)
    at androidx.compose.ui.platform.WrappedComposition.setContent(Wrapper.android.kt:135)
    at androidx.compose.ui.platform.WrappedComposition.onStateChanged(Wrapper.android.kt:187)
    at androidx.lifecycle.LifecycleRegistry$ObserverWithState.dispatchEvent(LifecycleRegistry.java:354)
    at androidx.lifecycle.LifecycleRegistry.addObserver(LifecycleRegistry.java:196)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:142)
    at androidx.compose.ui.platform.WrappedComposition$setContent$1.invoke(Wrapper.android.kt:135)
    at androidx.compose.ui.platform.AndroidComposeView.onAttachedToWindow(AndroidComposeView.android.kt:814)
    at android.view.View.dispatchAttachedToWindow(View.java:20479)
    at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3489)
    at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
    at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
    at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
    at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
    at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3496)
    at android.view.AttachInfo_Accessor.setAttachInfo(AttachInfo_Accessor.java:44)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:360)
    at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:431)
    at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:141)
    at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:714)
    at com.android.tools.idea.rendering.RenderTask.lambda$inflate$7(RenderTask.java:870)
    at com.android.tools.idea.rendering.RenderExecutor$runAsyncActionWithTimeout$2.run(RenderExecutor.kt:187)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:834)

更新 在用不同的模型更改了几次预览后,突然一切都开始工作了。看起来缓存有一些错误

【问题讨论】:

  • 请重新检查资源目录以了解所需资源的可用性
  • @MARSK 有资源。看起来像是带有 privew 缓存的东西。
  • 我的应用遇到了同样的问题,但 Google 的演示应用运行良好。
  • @metaleater 这里也一样 =(

标签: android android-jetpack-compose


【解决方案1】:

import com.package.R

当然,用实际名称替换“项目”。

【讨论】:

  • 如我所说。代码在模拟器上编译并运行。当然,它具有对 R 的必要导入。
  • 即使你没有导入这个R,项目也会编译。其中有两个。一个来自 Android 包,一个特定于您的包。我想说的是,你导入了正确的
  • 好的。现在很清楚了。但事实并非如此。有导入是正确的
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