几个工作问题

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

at java.util.ArrayList.RangeCheck(ArrayList.java:547)
at java.util.ArrayList.get(ArrayList.java:322)
at com.android.ninepatch.NinePatchChunk.draw(NinePatchChunk.java:185)
at com.android.ninepatch.NinePatchChunk.draw(NinePatchChunk.java:101)
at android.graphics.NinePatch_Delegate$1.draw(NinePatch_Delegate.java:219)
at com.android.layoutlib.bridge.impl.GcSnapshot.drawInLayer(GcSnapshot.java:613)
at com.android.layoutlib.bridge.impl.GcSnapshot.draw(GcSnapshot.java:583)
at android.graphics.NinePatch_Delegate.draw(NinePatch_Delegate.java:217)
at android.graphics.NinePatch_Delegate.nativeDraw(NinePatch_Delegate.java:170)
at android.graphics.NinePatch.nativeDraw(NinePatch.java)
at android.graphics.NinePatch.draw(NinePatch.java:120)
at android.graphics.drawable.NinePatchDrawable.draw(NinePatchDrawable.java:189)
at android.view.View.draw(View.java:10865)
at android.view.ViewGroup.drawChild(ViewGroup.java:2899)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2495)
at android.view.ViewGroup.drawChild(ViewGroup.java:2897)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2495)
at android.view.ViewGroup.drawChild(ViewGroup.java:2897)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2495)
at android.view.View.draw(View.java:10883)
at android.view.ViewGroup.drawChild(ViewGroup.java:2899)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2495)
at android.view.ViewGroup.drawChild(ViewGroup.java:2897)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2495)
at android.view.View.draw(View.java:10883)
at android.view.ViewGroup.drawChild(ViewGroup.java:2899)
at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2495)
at android.view.View.draw(View.java:10883)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.render(RenderSessionImpl.java:505)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:324)
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:325)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:372)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(GraphicalEditorPart.java:1323)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.recomputeLayout(GraphicalEditorPart.java:1077)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.activated(GraphicalEditorPart.java:903)
at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditor.pageChange(LayoutEditor.java:399)
at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:290)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:240)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1061)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2746)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1433)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1258)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3588)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3209)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

问题一

问题衔接：http://stackoverflow.com/questions/10757997/9-patch-not-working

从几篇帖子中大概可以看出是4.1版本之前的一个bug./

This is a bug in the layout library, which ships with each SDK version itself, it's not part of ADT.  This was fixed recently for the Android 4.1 SDK (API 16).

问题二

关于横竖屏切换的问题：

http://www.cnblogs.com/zhouliweiblog/p/3431450.html

问题三

一般我们用子线程去做耗时的操作，以免造成mainThread阻塞，在最新版本中，当我们在mainthread中执行http操作时，会报这个错误。

android.os.NetworkOnMainThreadException

解决办法：

在oncreate方法中添加

if (android.os.Build.VERSION.SDK_INT > 9) {
    StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);
}

研究StrictMode ???

另外解决办法：就是thread+handler 实现。这个再常见不过的了、。