[英]i want to show a popup menu when there is a focus event occur on a Jtextfield,popup is generated but t is not over that textfield where it should be
timePopUp.setPopupSize(100, 50);
timePopUp.setLocation(fieldName.getX(),fieldName.getY());
timePopUp 是 JPopupMenu 的变量名
尝试使用SwingUtilities.convertPointToScreen将点转换为屏幕，看看它是否有帮助。
当 JTextField 的焦点丢失时，如何使添加到 JtextField 的弹出菜单不可见？
[英]How to make a popup menu added to a JtextField to be invisible when the JTextField's focus is lost?
Vaadin弹出窗口应显示并隐藏在click事件中，因此不会出现弹出窗口
[英]Vaadin popup should show and hide in the click event makes no appear popup
当您将鼠标移到Java的文本字段上时，是否可以显示类似“云”的弹出窗口？
[英]Is there a way to show a popup like a “cloud” when you passed your mouse over a textfield in Java?
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