如何保存GTK外观&感觉在Java中使用sudo [英] How to preserve GTK look & feel in Java using sudo

问题描述

通常，当您需要运行一些Java安装程序时，您只需执行以下操作：

  $ sudo netbeans-8.1- linux.sh 
  

不幸的是，这会切换您漂亮的本机GTK外观&感觉有些丑陋，默认的Metal主题。

您可以使用此示例类来测试：

  // laf.java 
 import javax.swing.UIManager; 
 
 public class laf {
 public static void main（java.lang.String [] args）{
 try {
 System.out.println（UIManager.getSystemLookAndFeelClassName （））; 
} catch（Exception e）{
} 
} 
} 
  

还有一些输出：

  $ javac laf.java 
 $ java laf 
 com .sun.java.swing.plaf.gtk.GTKLookAndFeel 
 $ sudo java laf 
 javax.swing.plaf.metal.MetalLookAndFeel 
  

这是如何使用 sudo ：

Often when you need to run some Java installers, you just do something like this:

$ sudo netbeans-8.1-linux.sh

And unfortunately this switches your nice, native GTK look & feel to some ugly, default Metal theme.

You can test it with this sample class:

// laf.java
import javax.swing.UIManager;

public class laf {
    public static void main(java.lang.String[] args) {
        try {
            System.out.println(UIManager.getSystemLookAndFeelClassName());
        } catch (Exception e) {
        }
    }
}

And some output:

$ javac laf.java
$ java laf
com.sun.java.swing.plaf.gtk.GTKLookAndFeel
$ sudo java laf
javax.swing.plaf.metal.MetalLookAndFeel

This is how it looks using sudo:

解决方案

To properly fix this behavior, you can add a sudoers file:

vim /etc/sudoers.d/20_keep_java_laf

with contents:

Defaults env_keep+=GNOME_DESKTOP_SESSION_ID

This will be cause UIManager#getSystemLookAndFeelClassName() to resolve desktop, nice, GTK look & feel.

Now it is fixed:

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