我搜索了与此问题相关的解决方案,但一无所获。我解决了问题,所以我在这里发布问题和解决方案,目的是帮助某人。
将 Jetpack Compose 从版本
1.2.0-beta02
更新到 1.2.0-rc02
后,屏幕上的某些内容导致应用程序崩溃。
此特定屏幕上的代码在版本之间没有更改,因此崩溃必须是由我正在使用的 Compose 组件之一引起的。我通过反复试验的方法设法找到了崩溃的根源,发现问题出在
BottomSheetScaffold
组件(带有空,有点,content
)。
BottomSheetScaffold(
sheetContent = { Text(text = "Some sheet content") }
) {
AlertDialog(
onDismissRequest = {
// NO-OP
},
buttons = {
Text(text = "here goes a button")
}
)
}
2022-07-01 10:02:07.185 16257-16257/my.example.app E/AndroidRuntime: FATAL EXCEPTION: main
Process: my.example.app, PID: 16257
java.lang.IndexOutOfBoundsException: Index 0 is out of bounds. The list has 0 elements.
at androidx.compose.runtime.collection.MutableVectorKt.checkIndex(MutableVector.kt:1135)
at androidx.compose.runtime.collection.MutableVectorKt.access$checkIndex(MutableVector.kt:1)
at androidx.compose.runtime.collection.MutableVector$MutableVectorList.get(MutableVector.kt:940)
at androidx.compose.material.BottomSheetScaffoldKt$BottomSheetScaffoldLayout$1$1.invoke-0kLqBqw(BottomSheetScaffold.kt:447)
at androidx.compose.material.BottomSheetScaffoldKt$BottomSheetScaffoldLayout$1$1.invoke(BottomSheetScaffold.kt:430)
at androidx.compose.ui.layout.LayoutNodeSubcompositionsState$createMeasurePolicy$1.measure-3p2s80s(SubcomposeLayout.kt:590)
at androidx.compose.ui.node.InnerPlaceable.measure-BRTryo0(InnerPlaceable.kt:44)
at androidx.compose.ui.node.LayoutNode$performMeasure$1.invoke(LayoutNode.kt:1428)
at androidx.compose.ui.node.LayoutNode$performMeasure$1.invoke(LayoutNode.kt:1427)
at androidx.compose.runtime.snapshots.Snapshot$Companion.observe(Snapshot.kt:2101)
at androidx.compose.runtime.snapshots.SnapshotStateObserver.observeReads(SnapshotStateObserver.kt:110)
at androidx.compose.ui.node.OwnerSnapshotObserver.observeReads$ui_release(OwnerSnapshotObserver.kt:78)
at androidx.compose.ui.node.OwnerSnapshotObserver.observeMeasureSnapshotReads$ui_release(OwnerSnapshotObserver.kt:66)
at androidx.compose.ui.node.LayoutNode.performMeasure-BRTryo0$ui_release(LayoutNode.kt:1427)
at androidx.compose.ui.node.OuterMeasurablePlaceable.remeasure-BRTryo0(OuterMeasurablePlaceable.kt:94)
at androidx.compose.ui.node.OuterMeasurablePlaceable.measure-BRTryo0(OuterMeasurablePlaceable.kt:75)
at androidx.compose.ui.node.LayoutNode.measure-BRTryo0(LayoutNode.kt:1366)
at androidx.compose.foundation.layout.BoxKt$boxMeasurePolicy$1.measure-3p2s80s(Box.kt:115)
at androidx.compose.ui.node.InnerPlaceable.measure-BRTryo0(InnerPlaceable.kt:44)
at androidx.compose.ui.graphics.SimpleGraphicsLayerModifier.measure-3p2s80s(GraphicsLayerModifier.kt:405)
at androidx.compose.ui.node.ModifiedLayoutNode.measure-BRTryo0(ModifiedLayoutNode.kt:53)
at androidx.compose.foundation.layout.FillModifier.measure-3p2s80s(Size.kt:658)
at androidx.compose.ui.node.ModifiedLayoutNode.measure-BRTryo0(ModifiedLayoutNode.kt:53)
at androidx.compose.ui.node.LayoutNode$performMeasure$1.invoke(LayoutNode.kt:1428)
at androidx.compose.ui.node.LayoutNode$performMeasure$1.invoke(LayoutNode.kt:1427)
at androidx.compose.runtime.snapshots.Snapshot$Companion.observe(Snapshot.kt:2101)
at androidx.compose.runtime.snapshots.SnapshotStateObserver.observeReads(SnapshotStateObserver.kt:110)
at androidx.compose.ui.node.OwnerSnapshotObserver.observeReads$ui_release(OwnerSnapshotObserver.kt:78)
at androidx.compose.ui.node.OwnerSnapshotObserver.observeMeasureSnapshotReads$ui_release(OwnerSnapshotObserver.kt:66)
at androidx.compose.ui.node.LayoutNode.performMeasure-BRTryo0$ui_release(LayoutNode.kt:1427)
at androidx.compose.ui.node.OuterMeasurablePlaceable.remeasure-BRTryo0(OuterMeasurablePlaceable.kt:94)
at androidx.compose.ui.node.OuterMeasurablePlaceable.measure-BRTryo0(OuterMeasurablePlaceable.kt:75)
at androidx.compose.ui.node.LayoutNode.measure-BRTryo0(LayoutNode.kt:1366)
at androidx.compose.foundation.layout.BoxKt$boxMeasurePolicy$1.measure-3p2s80s(Box.kt:115)
at androidx.compose.ui.node.InnerPlaceable.measure-BRTryo0(InnerPlaceable.kt:44)
at androidx.compose.ui.graphics.BlockGraphicsLayerModifier.measure-3p2s80s(GraphicsLayerModifier.kt:342)
at androidx.compose.ui.node.ModifiedLayoutNode.measure-BRTryo0(ModifiedLayoutNode.kt:53)
at androidx.compose.ui.node.LayoutNode$performMeasure$1.invoke(LayoutNode.kt:1428)
at androidx.compose.ui.node.LayoutNode$performMeasure$1.invoke(LayoutNode.kt:1427)
at androidx.compose.runtime.snapshots.Snapshot$Companion.observe(Snapshot.kt:2101)
BottomSheetScaffold
content
仅包含导致崩溃的 AlertDialog
组件(我猜它被视为空的 content
并且空的 content
将导致崩溃)。
将
AlertDialog
组件包裹在 Box
组件中后,崩溃消失了。我想 content
参数中至少必须有一些屏幕内容(AlertDialog
可能不会被视为屏幕内容,因为它被提升了 - 我不确定)。
BottomSheetScaffold(
sheetContent = { Text(text = "Some sheet content") }
) {
Box {
AlertDialog(
onDismissRequest = {
// NO-OP
},
buttons = {
Text(text = "here goes a button")
}
)
}
}
参考找到崩溃原因的 Google 问题跟踪器:https://issuetracker.google.com/issues/235588730