Stackoverflow:由嵌套视图引起? [英] Stackoverflow: Caused by nested views?

问题描述

刷新 SlidingTray 中的视图时发生崩溃(自定义 SlidingDrawer 来自顶部).

I'm having a crash when refreshing a view inside a SlidingTray (custom SlidingDrawer coming from the top).

我不确定是什么导致了它......但我的第一个猜测是它是由于嵌套布局的数量......

I'm not sure what causing it.. but my first guess is that it's due to the number of nested layouts...

嵌套布局的最大数量是多少?

是否特定于设备，我如何确定这是否是原因?

Is it device specific, how can I be sure if that's the cause?

如果不是，这些原因中的任何一个都会导致它..是什么?

If it's not, any of these things is causing it.. what is?

堆栈跟踪:

E/AndroidRuntime( 2199): FATAL EXCEPTION: main
E/AndroidRuntime( 2199): java.lang.StackOverflowError
E/AndroidRuntime( 2199): at android.graphics.Paint.measureText(Paint.java:1057)
E/AndroidRuntime( 2199): at android.text.Styled.drawDirectionalRun(Styled.java:267)
E/AndroidRuntime( 2199): at android.text.Styled.measureText(Styled.java:430)
E/AndroidRuntime( 2199): at android.text.Layout.measureText(Layout.java:1655)
E/AndroidRuntime( 2199): at android.text.Layout.getLineMax(Layout.java:689)
E/AndroidRuntime( 2199): at android.text.Layout.draw(Layout.java:340)
E/AndroidRuntime( 2199): at android.text.BoringLayout.draw(BoringLayout.java:365)
E/AndroidRuntime( 2199): at android.widget.TextView.onDraw(TextView.java:4168)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6880)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.widget.FrameLayout.draw(FrameLayout.java:357)
E/AndroidRuntime( 2199): at android.widget.ScrollView.draw(ScrollView.java:1409)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.buildDrawingCache(View.java:6640)
E/AndroidRuntime( 2199): at android.view.View.getDrawingCache(View.java:6428)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1571)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1392)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.widget.FrameLayout.draw(FrameLayout.java:357)
E/AndroidRuntime( 2199): at android.widget.ScrollView.draw(ScrollView.java:1409)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6986)
E/AndroidRuntime( 2199): at android.widget.FrameLayout.draw(FrameLayout.java:357)
E/AndroidRuntime( 2199): at android.widget.HorizontalScrollView.draw(HorizontalScrollView.java:1409)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at com.vodafone.onm.components.SlidingTray.dispatchDraw(SlidingTray.java:426)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1644)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.widget.FrameLayout.draw(FrameLayout.java:357)
E/AndroidRuntime( 2199): at android.view.ViewGroup.drawChild(ViewGroup.java:1646)
E/AndroidRuntime( 2199): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1373)
E/AndroidRuntime( 2199): at android.view.View.draw(View.java:6883)
E/AndroidRuntime( 2199): at android.widget.FrameLayout.draw(FrameLayout.java:357)
E/AndroidRuntime( 2199): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java)

更新:层次结构查看器快照

• http://d.pr/kXnp

.

有些人认为我认为是相关的:http://www.mail-archive.com/[e-mail]/msg48036.html

推荐答案

嵌套布局的最大数量是多少?

What is the maximum number of nested layouts?

没有具体值.当您用完堆栈空间时，您就会用完堆栈空间，这取决于您正在做什么.主应用程序线程有一个 8KB 的堆栈，这是我最后听说的.

There is no specific value. You run out of stack space when you run out of stack space, and that will be contingent upon what you are doing. The main application thread has an 8KB stack, last I heard.

话虽如此，如果层次视图显示的深度为 10 或更多(从根到最深的叶)，我开始感到紧张，到 15 时，您可能会开始遇到异常.您的图像几乎难以辨认，但其深度似乎远高于此.

That being said, if Hierarchy View is showing a depth of 10 or more (root to deepest leaf), I start to get nervous, and by 15 you are likely to start running into exceptions. Your image, which is nearly illegible, appears to have a depth substantially higher than that.

您似乎浪费了许多图层.如果您在层次结构视图中有一个层，在关键路径上，它有一个父级和一个子级，这是要删除的主要候选者，因为它可能不会增加任何值.你至少有 5 个这样的候选人.即使清理所有这些可能还不够，但这是一个起点.

You seem to have a number of wasted layers. If you have a layer in Hierarchy View, on the critical path, that has one parent and one child, that is a prime candidate to be removed, as it may not be adding any value. You have at least 5 of these candidates. Even cleaning all of that up may not be sufficient, but it is a starting point.

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