Java-设置JComponent的确切位置 [英] Java - set the exact position of a JComponent

问题描述

在设置JPanel上JLabel的x和y位置时，我需要帮助，不是北，南，西，东.

I need help with setting the x and y position of a JLabel on a JPanel, not North,South,West,East.

谢谢您的时间.

推荐答案

要使JPanel尊重确切的位置，应将其布局设置为null.然后，您可以在任何JComponent上使用 setLocation 来设置其在该JPanel中的位置.

To have a JPanel respect exact locations, you should set its layout to null. Then, you can use setLocation on any JComponent to set its location within that JPanel.

JPanel panel = new JPanel();
panel.setLayout(null);
JLabel label = new JLabel("text");
label.setLocation(50, 20);
panel.add(label);

但是，请注意，绝对位置有几个缺点(在下面的注释中提到)，并且应该利用LayoutManager来定位组件.

However, note that there are several downsides of absolute position (mentioned in comments below), and that you should utilize a LayoutManager to position your components.

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