如何设置时，框架被拖动文本字段下方的JWindow的位置？ [英] How to set the location of a JWindow below the textfield when the frame is being drag?

问题描述

我想提出一个自动完成的项目（就像谷歌）。我有一个JTextField在我的框架，每当我输入一些东西到该领域，一个的JWindow将出现在文本框的下方，该窗口从另一个类的到来。

I am making an autocomplete project(just like Google). I have a jtextfield in my frame and whenever I type something to that field, a JWindow will appear below the textfield and that window is coming from another class.

现在的问题是，我怎么可能让窗口总是出现在文本框下方，每当我拖动框架？

Now the problem is how could I make the window always appear below the textfield whenever I drag the frame?

任何帮助将是非常美联社preciated ..谢谢...

Any help would be much appreciated.. Thanks...

推荐答案

手动设置 Locatio N，你必须定义什么是私人点的位置; 和的getLocation 从所需的JComponent ，不要忘记dealyed秀为显示顶层容器到的invokeLater（）;

for manually set Location on the screen, you have to define something as private Point location; and getLocation from desired JComponent, don't forget dealyed show for Show Top-Level Container into invokeLater();

例如：

public void showWindow() {   
    window.setVisible(false);
    location = myTextField.getLocationOnScreen();
    int x = location.x;
    int y = location.y;
    window.setLocation(x - 20, y - 20);
    Runnable doRun = new Runnable() {

         @Override
         public void run() {
             window.setVisible(true);
         }
    };
    SwingUtilities.invokeLater(doRun);
 }

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