如何将 JLabels 定位到 Java GUI 上的绝对位置

How to locate JLabels to an absolute position on Java GUI

提问by AhmetB - Google

I have many JLabels (which includes ImageIcons) in a JPanel.

我在 a 中有很多JLabels（包括ImageIcons）JPanel。

And this JPanelis only a panel on the GUI; there are lots of other panels.

这JPanel只是 GUI 上的一个面板；还有很多其他面板。

I want to place labels to the exact pixel coordinates on their JPanelcontainer.

我想将标签放置在其JPanel容器上的确切像素坐标上。

How can I do that without using GroupLayout?

我如何在不使用的情况下做到这一点GroupLayout？

回答by Michael Myers

See Doing Without a Layout Manager (Absolute Positioning)in the Java tutorials.

请参阅Java 教程中的Doing without a Layout Manager (Absolute Positioning)。

Creating a container without a layout manager involves the following steps.

1. Set the container's layout manager to null by calling setLayout(null).
2. Call the Componentclass's setboundsmethod for each of the container's children.
3. Call the Componentclass's repaintmethod.

创建没有布局管理器的容器包括以下步骤。

1. 通过调用将容器的布局管理器设置为 null setLayout(null)。
2. 为每个容器的子Component级调用类的setbounds方法。
3. 调用Component类的repaint方法。

回答by Tom Hawtin - tackline

Either

任何一个

• set a custom LayoutManager(Container.setLayout) on the panel that sets the exact positions you want or
• set a nulllayout manager (myPanel.setLayout(null);) and set component positions externally (Component.setBounds).

• 在面板上设置自定义LayoutManager( Container.setLayout) 以设置您想要的确切位置或
• 设置null布局管理器 ( myPanel.setLayout(null);) 并在外部设置组件位置 ( Component.setBounds)。

回答by Jon

Take a look at MigLayout, which allows you to do absolute positioning, it's not part of the JDK, but a seperate download.

看看 MigLayout，它允许你做绝对定位，它不是 JDK 的一部分，而是一个单独的下载。

It's very good as far as layout managers go and does absolute positioning, plus a whole load of other things.

就布局管理器而言，这是非常好的，可以进行绝对定位，再加上一大堆其他事情。