我正在尝试以编程方式创建首选项页面,我需要在不在 plugin.xml 中定义 preferencePage 扩展点的情况下使用首选项页面 我非常接近解决方案,我能够在应用程序第一次加载时加载页面并保存值,
我的代码的核心是
PreferenceManager pmngr= PlatformUI.getWorkbench().getPreferenceManager();
//this come from other plugins that implements my personal IPreferences
PreferencePageRCP page =new PreferencePageRCP((IPreferences) element.createExecutableExtension("class"));
PreferenceNodeRCP node= new PreferenceNodeRCP(page.getId(), page.getTitle(),null,PreferencePageRCP.class.getName());
node.setPage(page);
pmngr.addToRoot(node);
PreferencePageRCP 是我的自定义 PreferencePage,所以此时我的 PreferencePage 可以正常工作!!!
但是当我第二次进入首选项窗口时,我在 PreferenceNode.createPage 上遇到了一个错误,所以现在我做了我自己的 PreferenceNode 类来覆盖 createPage,但现在我遇到了一个 UI 错误
Problems occurred when invoking code from plug-in: "org.eclipse.jface".
!STACK 0
org.eclipse.swt.SWTException: Widget is disposed
at org.eclipse.swt.SWT.error(SWT.java:4083)
at org.eclipse.swt.SWT.error(SWT.java:3998)
at org.eclipse.swt.SWT.error(SWT.java:3969)
at org.eclipse.swt.widgets.Widget.error(Widget.java:468)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:340)
at org.eclipse.swt.widgets.Control.setVisible(Control.java:3370)
at org.eclipse.jface.dialogs.DialogPage.setVisible(DialogPage.java:470)
at org.eclipse.jface.preference.FieldEditorPreferencePage.setVisible(FieldEditorPreferencePage.java:374)
at org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1323)
at org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:673)
at org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:708)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
andContributionItem.java:796
.................
所以第二次 UI 中缺少一些东西 我此时无法修复我的代码,有人成功地以编程方式创建首选项页面???
最佳答案
这是 java 代码,它允许以编程方式创建首选项页面:
//create an instance of the custom MyPreference class
IPreferencePage page = new MyPreference();
page.setTitle("Custom Configurations");<p></p>
<p>//create a new PreferenceNode that will appear in the Preference window
PreferenceNode node = new PreferenceNode("1", page);</p>
<p>//use workbenches's preference manager
PreferenceManager pm= PlatformUI.getWorkbench().getPreferenceManager();</p>
<p>pm.addToRoot(node); //add the node in the PreferenceManager</p>
<p>Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();</p>
<p>//instantiate the PreferenceDialog
PreferenceDialog pd = new PreferenceDialog(shell, pm); </p>
<p>//this line is important, it tell's the PreferenceDialog which preference-store it should write to
pd.setPreferenceStore(Activator.getDefault().getPreferenceStore());
pd.create();
pd.open();</p>
<p></p>
关于java - Eclipse:以编程方式创建首选项页面,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/4017001/