java 从 JScrollPane 获取组件
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原文地址: http://stackoverflow.com/questions/5764467/
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Get component from a JScrollPane
提问by Timotheus
If there is a JEditorPanein a JScrollPane, how can you get the editor from the scrollpane?
如果 aJEditorPane中有 a JScrollPane，您如何从滚动窗格中获取编辑器？
I tried scrollPane.getComponents()but the editor wasn't in the list.
我试过了，scrollPane.getComponents()但编辑器不在列表中。
回答by camickr
JViewport viewport = scrollPane.getViewport();
JEditorPane editorPane = (JEditorPane)viewport.getView();
回答by Hovercraft Full Of Eels
One way:
单程：
JViewport viewport = scrollPane.getViewport();
Component[] components = viewport.getComponents();
although you could just have a class field that holds a reference to your editor pane and get it more easily that way.
尽管您可以只拥有一个类字段来保存对编辑器窗格的引用，并通过这种方式更轻松地获取它。
Edit: as per Jeanette and Rob: the best way to get the single child component held by the viewport is with its getView()method.
编辑：按照 Jeanette 和 Rob 的说法：获得视口持有的单个子组件的最佳方法是使用它的getView()方法。
My initial answer reminds me of a quote from H.L. Mencken:
我最初的回答让我想起了 HL Mencken 的一句话：
"For every complex problem there is a solution that is concise, clear, simple, and wrong."
“对于每一个复杂的问题，都有一个简洁、清晰、简单和错误的解决方案。”
