当OneTouchExpandable设置为true时，如何通过编程将JSplitPane设置为隐藏右/下组件？
当OneTouchExpandable设置为true时，如何通过编程将JSplitPane设置为隐藏右/下组件？
提问于 2012-02-07 21:34:40
在JSplitPane中，您可以使用setOneTouchExpandable方法，该方法提供两个按钮来快速完全隐藏或完全显示JSplitPane。
我的问题是，如何通过编程方式“单击”JSplitPane__上的“隐藏”按钮？
我可能解释错了。我希望拆分窗格在开始时只显示两个组件中的一个(这就是我单击的意思)。
这行得通：
import javax.swing.*;
class SplitPaneDefault {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JSplitPane sp = new JSplitPane(
JSplitPane.HORIZONTAL_SPLIT,
new JTree(),
new JTree());
sp.setOneTouchExpandable(true);
sp.setDividerLocation(0.0);
JOptionPane.showMessageDialog(null, sp);
}
});
}
}但是用 1.0 替换并不会隐藏正确的组件。这是我的问题！
回答 5
Stack Overflow用户
发布于 2018-06-01 05:03:37
这是另一个解决方案，可能有点脏，但它是有效的;)我希望代码不言而喻。
public class ExtOneTouchJSplitPane extends JSplitPane {
private static final long serialVersionUID = -2320161961382260438L;
JButton jBLeftUp;
JButton jBRightDown;
public ExtOneTouchJSplitPane() {
super();
setOneTouchExpandable(true);
extractDividerButtons();
}
public ExtOneTouchJSplitPane(int newOrientation) {
super(newOrientation);
setOneTouchExpandable(true);
extractDividerButtons();
}
public ExtOneTouchJSplitPane(int newOrientation, boolean newContinuousLayout) {
super(newOrientation, newContinuousLayout);
setOneTouchExpandable(true);
extractDividerButtons();
}
public ExtOneTouchJSplitPane(int newOrientation, boolean newContinuousLayout, Component newLeftComponent, Component newRightComponent) {
super(newOrientation, newContinuousLayout, newLeftComponent, newRightComponent);
setOneTouchExpandable(true);
extractDividerButtons();
}
public ExtOneTouchJSplitPane(int newOrientation, Component newLeftComponent, Component newRightComponent) {
super(newOrientation, newLeftComponent, newRightComponent);
setOneTouchExpandable(true);
extractDividerButtons();
}
private void extractDividerButtons() {
BasicSplitPaneUI ui = (BasicSplitPaneUI) getUI();
jBLeftUp = (JButton) ui.getDivider().getComponent(0);
jBRightDown = (JButton) ui.getDivider().getComponent(1);
}
public void oneTouchClickLeft() {
jBLeftUp.doClick();
}
public void oneTouchClickRight() {
jBRightDown.doClick();
}
public void oneTouchClickUp() {
jBLeftUp.doClick();
}
public void oneTouchClickDown() {
jBRightDown.doClick();
}
}下面是如何使用它的示例：
public class SplitPaneDemo extends JFrame implements Runnable {
public static void main(String[] args) {
SwingUtilities.invokeLater(new SplitPaneDemo());
}
ExtOneTouchJSplitPane hSplitPane;
ExtOneTouchJSplitPane vSplitPane;
public SplitPaneDemo() {
createView();
}
public void createView() {
setTitle("SplitPane-Demo");
setLayout(new BorderLayout(0, 0));
hSplitPane = new ExtOneTouchJSplitPane();
JButton jBLeft = new JButton("<html><body> <br>Left Component<br> </body></html>");
JButton jBRight = new JButton("<html><body> <br>Right Component<br> </body></html>");
jBLeft.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
hSplitPane.oneTouchClickLeft();
}
});
jBRight.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
hSplitPane.oneTouchClickRight();
}
});
hSplitPane.setLeftComponent(jBLeft);
hSplitPane.setRightComponent(jBRight);
add(hSplitPane, BorderLayout.CENTER);
vSplitPane = new ExtOneTouchJSplitPane(JSplitPane.VERTICAL_SPLIT);
JButton jBUp = new JButton("<html><body> <br>Up Component<br> </body></html>");
JButton jBDown = new JButton("<html><body> <br>Down Component<br> </body></html>");
jBUp.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
vSplitPane.oneTouchClickUp();
}
});
jBDown.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
vSplitPane.oneTouchClickDown();
}
});
vSplitPane.setTopComponent(jBUp);
vSplitPane.setBottomComponent(jBDown);
add(vSplitPane, BorderLayout.SOUTH);
}
@Override
public void run() {
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setSize(400, 400);
setVisible(true);
hSplitPane.oneTouchClickLeft();
}
}Stack Overflow用户
发布于 2012-02-07 21:53:17
您可以简单地使用以下命令：
public void setDividerLocation(double proportionalLocation)
splitPane.setDividerLocation(0.0d);或。
splitPane.setDividerLocation(1.0d);这取决于你想先隐藏左边的组件还是隐藏右边的组件。
Stack Overflow用户
发布于 2016-05-06 08:38:04
要解决在帧变为可显示之前setDividerLocation(1.0)不起作用的问题，可以使用AncestorListener
sp.addAncestorListener(new AncestorListener {
def ancestorAdded (event: AncestorEvent): Unit = sp.setDividerLocation(1.0)
def ancestorRemoved(event: AncestorEvent): Unit = ()
def ancestorMoved (event: AncestorEvent): Unit = ()
})页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/9177182
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