[英]Java JDialog interaction without taking focus on macOS
i know there is a lot of discussions around this question but this is different. 我知道围绕这个问题有很多讨论,但这是不同的。 We have a java application that show a JDialog on a Keyboard event on Windows (Native hook).
我们有一个Java应用程序,该应用程序在Windows的Keyboard事件上显示JDialog(本机挂钩)。 It works fine, when i click something in the java window, the focus of the current application is not lost.
它工作正常,当我在Java窗口中单击某些内容时,当前应用程序的焦点不会丢失。 On macOS, it change the active application to my java window.
在macOS上,它将活动应用程序更改为我的Java窗口。 I managed to hide the dock icon with this :
我设法用这个隐藏了停靠图标:
-Dglass.taskbarApplication=false
But this is not enough, i want my java application to never be focused. 但这还不够,我希望我的Java应用程序永远不会受到关注。 I read about the headless property and it cannot work since i show a JDialog.
我读到有关headless属性的信息,由于我显示了JDialog,因此它无法工作。 It works perfectly in Windows but on Mac, a tray application is not the same i guess.
它在Windows中完美运行,但是在Mac上,我猜它是一个托盘应用程序。 Is this possible?
这可能吗? Is the problem with the JDialog or can i add some argument to run my java application in the background?
是JDialog的问题,还是我可以添加一些参数以在后台运行Java应用程序? Thanks
谢谢
Note: The solution below is tested on OS X only 注意:以下解决方案仅在OS X上经过测试
Forcing the JDialog
to have a type of Window.Type#POPUP
as shown below seems to work. 强制
JDialog
具有Window.Type#POPUP
类型,如下所示。
dialog.setType(Window.Type.POPUP);
This allows the dialog to be focusable and when it gains focus other windows won't lose focus, like a popup menu. 这样可以使对话框具有焦点,并且当它获得焦点时,其他窗口也不会失去焦点,例如弹出菜单。 However, it also has other effects like making the dialog behave as if
dialog.setAlwaysOnTop(true)
has been called. 但是,它还具有其他效果,例如使对话框表现得好像已调用
dialog.setAlwaysOnTop(true)
。
Note: The example application below unfocuses other windows on startup but not after the unfocused windows are focused again. 注意:下面的示例应用程序在启动时将其他窗口置于非焦点状态,但在未聚焦的窗口再次被聚焦之后则不会。
Example: 例:
import java.awt.EventQueue;
import java.awt.Window;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
import javax.swing.WindowConstants;
public class NonUnfocusingDialogExample {
public static void main(final String[] args) {
EventQueue.invokeLater(() -> {
final JDialog dialog = new JDialog();
dialog.setType(Window.Type.POPUP);
dialog.getContentPane().add(new JLabel("Hello World!",
SwingConstants.CENTER));
dialog.pack();
dialog.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
dialog.setTitle("Test Dialog");
dialog.setLocationByPlatform(true);
dialog.setVisible(true);
});
}
}
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