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我有一個問題，可能是由於對Netbeans平臺（7.1.2）或JavaFX 2的某些原理缺乏瞭解導致的。我想將一個JFXPanel加上一個非常簡單的Scene添加到Swing JPanel是TopComponent的子項。我用下面的代碼來實現這一點：爲什麼我的TopComponent上的JavaFX內容會消失？
public accexTopComponent() {
initComponents();
setName(Bundle.CTL_accexTopComponent());
setToolTipText(Bundle.HINT_accexTopComponent());
putClientProperty(TopComponent.PROP_CLOSING_DISABLED, Boolean.TRUE);
//Begin of my code
myFX = new JFXPanel(); //myFX is a static JFXPanel
Platform.runLater(new Runnable() {
@Override
public void run() {
myFX.setScene(new Scene(ButtonBuilder.create().minHeight(40.0).minWidth(40.0).build()));
}
});
jPanel1.add(myFX);
}
這編譯沒有問題，一個JavaFX Button顯示，當我告訴了TopComponent的第一次。但只要組件被隱藏並再次顯示，JavaFX Button就會消失，而其他孩子仍然可見。
爲什麼JavaFX內容會消失？
編輯：
我現在包括整個TopComponent的來源。我想這就是你需要自己測試的一切。我沒有更改任何其他文件。
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package de.jeed.nbgan.accexplorer;
import java.awt.Color;
import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.scene.control.ButtonBuilder;
import javafx.scene.text.TextBuilder;
import javafx.scene.web.WebView;
import javafx.scene.web.WebViewBuilder;
import org.netbeans.api.settings.ConvertAsProperties;
import org.openide.awt.ActionID;
import org.openide.awt.ActionReference;
import org.openide.windows.TopComponent;
import org.openide.util.NbBundle.Messages;
/**
* Top component which displays something.
*/
@ConvertAsProperties(dtd = "-//de.jeed.nbgan.accexplorer//accex//EN",
autostore = false)
@TopComponent.Description(preferredID = "accexTopComponent",
//iconBase="SET/PATH/TO/ICON/HERE",
persistenceType = TopComponent.PERSISTENCE_ALWAYS)
@TopComponent.Registration(mode = "explorer", openAtStartup = true)
@ActionID(category = "Window", id = "de.jeed.nbgan.accexplorer.accexTopComponent")
@ActionReference(path = "Menu/Window" /*
* , position = 333
*/)
@TopComponent.OpenActionRegistration(displayName = "#CTL_accexAction",
preferredID = "accexTopComponent")
@Messages({
"CTL_accexAction=accex",
"CTL_accexTopComponent=Konten-Explorer",
"HINT_accexTopComponent=Durchsuchen von Abteilungen und Konten"
})
public final class accexTopComponent extends TopComponent {
static JFXPanel myFX;
public accexTopComponent() {
initComponents();
setName(Bundle.CTL_accexTopComponent());
setToolTipText(Bundle.HINT_accexTopComponent());
putClientProperty(TopComponent.PROP_CLOSING_DISABLED, Boolean.TRUE);
myFX = new JFXPanel();
Platform.runLater(new Runnable() {
@Override
public void run() {
myFX.setScene(new Scene(ButtonBuilder.create().minHeight(40.0).minWidth(40.0).build()));
}
});
jPanel1.add(myFX);
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jPanel1.setBorder(javax.swing.BorderFactory.createBevelBorder(javax.swing.border.BevelBorder.RAISED));
jPanel1.setLayout(new java.awt.GridBagLayout());
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(54, 54, 54)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 193, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(153, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(33, 33, 33)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, 193, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(74, Short.MAX_VALUE))
);
}// </editor-fold>
// Variables declaration - do not modify
private javax.swing.JPanel jPanel1;
// End of variables declaration
@Override
public void componentOpened() {
// TODO add custom code on component opening
}
@Override
public void componentClosed() {
// TODO add custom code on component closing
}
void writeProperties(java.util.Properties p) {
// better to version settings since initial version as advocated at
// http://wiki.apidesign.org/wiki/PropertyFiles
p.setProperty("version", "1.0");
// TODO store your settings
}
void readProperties(java.util.Properties p) {
String version = p.getProperty("version");
// TODO read your settings according to their version
}
}
在我而言，這TopComponent一個名爲AccountExplorer組件它引用的JavaFX，由一個普通的NB平臺應用程序所引用的一部分。
我試圖使用NetBeans 7.1和JavaFX 2.1重現您的問題。所有組件都按預期重新出現。請張貼SSCCE。 – pmoule
感謝您的努力。看我的項目[這裏]（https://rapidshare.com/files/894496305/FinancialEngineer.7z） – dajood
對不起，沒有項目下載鏈接，請。爲了讓其他人蔘與並使其更具吸引力，請發佈[SSCCE]（http://pscode.org/sscce.html）。 – pmoule