android - 9-patch 不起作用

Question

我在 Android 上遇到 9 补丁 png 的奇怪问题。它已经在 Eclipse 可视化编辑器中失败，无论我使用哪个目标(尝试了 7 到 14 之间的几个)。错误日志显示消息 main.xml: Index: 0, Size: 0后面的异常(exception)是:

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)

9 补丁是使用 SDK 中包含的 draw9patch 工具创建的。我在这个项目中使用的所有图像都有这个问题。我之前已经在其他项目中使用过 9-patch，没有任何问题，因此假设有一些特定于我当前 png 格式的东西。也许设计师使用的 Photoshop 创建了导致无效 9 补丁的 png。有人知道这里的问题是什么吗？

更新:

工作版本:

无效版本:

Answer 1

您刚刚错过了设置的内容区域。

在 9 patch png 的右侧和底部绘制边框。