android - ChildHelper.java 第 352 和 355 行崩溃
问题描述
我们的应用程序有一个使用 RecyclerView 构建的 listView，项目在不同的用例中被添加、删除、移动、更改，我使用默认动画
有 1000 次与 android 中的 ChildHelper 类相关的崩溃，导致应用程序崩溃的代码如下，可在https://android.googlesource.com/platform/frameworks/support/+/5031b30/v7/recyclerview/src获得/android/support/v7/widget/ChildHelper.java#352
void unhide(View view) {
final int offset = mCallback.indexOfChild(view);
if (offset < 0) {
throw new IllegalArgumentException("view is not a child, cannot hide " + view);
}
if (!mBucket.get(offset)) {
throw new RuntimeException("trying to unhide a view that was not hidden" + view);
}
mBucket.clear(offset);
unhideViewInternal(view);
}
哪些用例会导致这两个错误，我们如何避免这些错误？
以下是这两种情况的崩溃日志。
选择未隐藏的查看器时的崩溃日志。
Fatal Exception: java.lang.RuntimeException: trying to unhide a view that was not hiddenandroid.widget.FrameLayout{dd0c169 V.E...... ......ID 0,54-680,234}
at android.support.v7.widget.ChildHelper.unhide(ChildHelper.java:355)
at android.support.v7.widget.RecyclerView$Recycler.getScrapOrHiddenOrCachedHolderForPosition(RecyclerView.java:6124)
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5627)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5589)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5585)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2231)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1558)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1518)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:610)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3719)
at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3135)
at android.view.View.measure(View.java:19826)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:19826)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:911)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19826)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1572)
at android.view.View.measure(View.java:19826)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6164)
at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:719)
at android.support.design.widget.HeaderScrollingViewBehavior.onMeasureChild(HeaderScrollingViewBehavior.java:91)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onMeasureChild(AppBarLayout.java:1361)
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:789)
at android.view.View.measure(View.java:19826)
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1060)
at android.view.View.measure(View.java:19826)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:19826)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6164)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
at android.view.View.measure(View.java:19826)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6164)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19826)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6164)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:19826)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6164)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19826)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6164)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:692)
at android.view.View.measure(View.java:19826)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2351)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1423)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1672)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1299)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6558)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:871)
at android.view.Choreographer.doCallbacks(Choreographer.java:683)
at android.view.Choreographer.doFrame(Choreographer.java:619)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:857)
at android.os.Handler.handleCallback(Handler.java:751)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6316)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:872)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:762)
认为不是孩子的情况
Fatal Exception: java.lang.IllegalArgumentException: view is not a child, cannot hide android.widget.FrameLayout{202da5c V.E...... ........ 0,81-1020,351}
at android.support.v7.widget.ChildHelper.unhide(ChildHelper.java:352)
at android.support.v7.widget.RecyclerView$Recycler.getScrapOrHiddenOrCachedHolderForPosition(RecyclerView.java:6124)
at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5627)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5589)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5585)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2231)
at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1558)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1518)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:610)
at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3719)
at android.support.v7.widget.RecyclerView.onMeasure(RecyclerView.java:3135)
at android.view.View.measure(View.java:23297)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:23297)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:958)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:23297)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1572)
at android.view.View.measure(View.java:23297)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)
at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:719)
at android.support.design.widget.HeaderScrollingViewBehavior.onMeasureChild(HeaderScrollingViewBehavior.java:91)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onMeasureChild(AppBarLayout.java:1361)
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:789)
at android.view.View.measure(View.java:23297)
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1060)
at android.view.View.measure(View.java:23297)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:715)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:461)
at android.view.View.measure(View.java:23297)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
at android.view.View.measure(View.java:23297)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:23297)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:23297)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1514)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:806)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:685)
at android.view.View.measure(View.java:23297)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6928)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:899)
at android.view.View.measure(View.java:23297)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2881)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1911)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2166)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1780)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7827)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:911)
at android.view.Choreographer.doCallbacks(Choreographer.java:723)
at android.view.Choreographer.doFrame(Choreographer.java:658)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:897)
at android.os.Handler.handleCallback(Handler.java:789)
at android.os.Handler.dispatchMessage(Handler.java:98)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6944)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
解决方案
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