Question

关于java tab键顺序的问题

本人在界面中设置了很多的控件，想控制tab的顺序。
我使用composite.setTabList(new Control[]{text_name, combo_sex, text_country});语句进行设置。
其中，text_name, combo_sex, text_country为composite中的部件。但是每次运行到此处抛出异常。

ava.lang.IllegalArgumentException: Argument not valid
at org.eclipse.swt.SWT.error(SWT.java:3761)
at org.eclipse.swt.SWT.error(SWT.java:3695)
at org.eclipse.swt.SWT.error(SWT.java:3666)
at org.eclipse.swt.widgets.Widget.error(Widget.java:463)
at org.eclipse.swt.widgets.Composite.setTabList(Composite.java:999)
at com.hcls.ui.view.dialog.CustomerEditorDialog.createDialogArea(CustomerEditorDialog.java:290)
at org.eclipse.jface.dialogs.Dialog.createContents(Dialog.java:760)
at org.eclipse.jface.window.Window.create(Window.java:431)
at org.eclipse.jface.dialogs.Dialog.create(Dialog.java:1089)
at org.eclipse.jface.window.Window.open(Window.java:790)
at com.hcls.ui.action.CustomerActionGroup$AddPoteCustomerAction.run(CustomerActionGroup.java:337)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500)
at org.eclipse.jface.action.ActionContributionItem$6.handleEvent(ActionContributionItem.java:452)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at hcls_icrm.intro.Application.start(Application.java:275)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
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:382)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)

请各位编程达人给看看这是什么原因？

Answer 1

我觉得不应该用 Composite.setTabList(...),因为Composite只是个接口,这个接口里面不包括setTabList()方法. 所以你应该用一个包含setTabList()方法的Composite类的子类。我在百度上查看一下 setTabList(),发现别人都是用Shell,这是个eclipse的第三方包.

Some thing like this:

import org.eclipse.swt.widgets.Shell;
Shell shell;
shell.setTabList(new Control[] { httpText, combo, viewBtn, resetBtn,
exitBtn, saveBtn });

Answer 2

(new Control[]{text_name, combo_sex, text_country})
new构造要有括号结束吧，如果你弄不明白可以先新建个Control，然后把这些一个一个赋值进去

Answer 3

没有弄过Java桌面系统