我正在创建一个简单的便利贴应用程序。我想点击JPopupMenu
时显示JTextArea
。因为它是一个粘滞便笺,所以很明显整个应用程序都是textArea
短代码:
//I've tried my best to follow SSCE
private JTextArea textArea = new JTextArea();
private JPopupMenu popup = new JPopupMenu("Popup Menu");
private JMenuItem hideBar = new JMenuItem("Hide Bar");
private JMenuItem hideTitle = new JMenuItem("Hide Item");
public mySticky(){
add(textArea); //Text Area is using the whole Frame "Sticky Note"
popup.add(hideBar); //adding MenuItem
popup.add(hideTitle); //adding MenuItem
//addMouseListener(new popupTriggerListener());
textArea.addMouseListener(new popupTriggerListener());
}
private class popupTriggerListener extends MouseAdapter{
public void MousePressed(MouseEvent e){
if(e.isPopupTrigger())
popup.show(textArea,e.getX(),e.getY()); //I've added texArea I'm not sure what to add inside.
}
public void MouseReleased(MouseEvent e){
if(e.isPopupTrigger())
popup.show(textArea,e.getX(),e.getY()); //I've added texArea I'm not sure what to add inside.
}
public void MouseClicked(MouseEvent e){
}
}
答案 0 :(得分:3)
我已尽力遵循SSCE
如果代码甚至无法编译,那怎么可能是SSCCE?请尝试再次阅读该链接。
我建议您首先阅读Bringing Up a Popup Menu上Swing教程中的部分,以获取一个工作示例。
嗯,我在这里错过了什么
当您覆盖方法时,您缺少应在方法签名之前的@Override
语句。这样可以防止您输入错误。