控件添加右键菜单项
以 JList 控件为例
首先控件需要添加鼠标的监听事件 1
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8mUserList.addMouseListener(new MouseAdapter() {
public void mouseReleased(MouseEvent e) {
super.mouseReleased(e);
showPopup(e);
}
});showPopup()
显示菜单的功能 1
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7public void showPopup(MouseEvent e) {
if (e.isPopupTrigger() && mUserList.getSelectedIndex() != -1
&& !mUserList.getSelectedValue().equals("管理员")) {
Object selected = mUserName.getElementAt(mUserList.getSelectedIndex());
popupMenu.show(e.getComponent(), e.getX(), e.getY());
}
}e.isPopupTrigger()
检测是否是右键,mUserList.getSelectedIndex()
防止在列表空白处点击