Stackoverflow:由嵌套视图引起的？

Question

我在刷新SlidingTray中的视图时遇到了崩溃(自定义的SlidingDrawer来自顶部).

我不确定是什么导致它..但我的第一个猜测是,这是由于嵌套布局的数量......

嵌套布局的最大数量是多少？

它是特定于设备的,我怎么能确定这是否是原因？

如果不是,那么这些东西都会导致它......是什么？

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

.

有人认为我认为是相关的: http ://www.mail-archive.com/android-developers@googlegroups.com/msg48036.html

Answer 1

嵌套布局的最大数量是多少？

没有具体的价值.当用完堆栈空间时,你的堆栈空间不足,这将取决于你正在做什么.我听说主应用程序线程有一个8KB的堆栈.

话虽这么说,如果层次结构视图显示深度为10或更多(根到最深的叶子),我开始变得紧张,到15岁时你可能会开始遇到异常.您的图像几乎难以辨认,其图像的深度远远高于此值.

你似乎有很多浪费的图层.如果在层次结构视图中有一个层,在关键路径上有一个父项和一个子项,那么它是要删除的主要候选项,因为它可能不会添加任何值.你至少有5个这样的候选人.即使清理所有这些也可能不够,但这是一个起点.