Java OS X Lion 设置应用程序名称不起作用

Question

I'm trying to change the application name displayed into the menu bar of OS X but i can't succeed with that. I have tried settings as the first statement in the main method with the following code :

System.setProperty("apple.laf.useScreenMenuBar", "true");
System.setProperty("com.apple.mrj.application.apple.menu.about.name", "Alessio");
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

but it doesn't work, in the menu bar is displayed main :

I'm on Mac OS X Lion (10.7.2).

Is there a way to change the application name in the menu bar? If so, how?

Answer 1

Using JDK8, you can set the apple.awt.application.name property to affect the Application menu name.

However, Martijn Courteaux's warning still applies: you must do this before any AWT classes are loaded. And AWT classes will be loaded before your main() method runs if it lives in a subclass of JFrame .

Reference:

http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/5c1d06cd7d7b/src/macosx/native/sun/osxapp/NSApplicationAWT.m#l157

Answer 2

Apparently, you can do it adding the following when you add the following options to the command line:

-Xdock:name="Alessio"

While com.apple.mrj.application.apple.menu.about.name is the right property name, I think you'll be setting it too late. Have you tried it on the command line as:

-Dcom.apple.mrj.application.apple.menu.about.name=Alessio

For more information about writing Java Apps for OS X: http://www.oracle.com/technetwork/articles/javase/javatomac-140486.html

It may also be worth looking at something like this: http://launch4j.sourceforge.net/

Answer 3

I'm not sure if this also works for OS X Lion , but I'm on Mountain Lion .

After some testing, my conclusion is that you can use the old approach if and only if you don't do anything with

• java.awt.Toolkit
• Setting look and feel

before setting the app name.

Some things that use Toolkit are: (Feel free to edit this answer and add items)

• Loading a java.awt.Font (@see static initializer of Font)
• Acquiring the Screen resolution.
• Loading a class that extends JFrame (such as if the class contains your main method)

Answer 4

I've had the same problem and discovered this: if your main method is a member of one of your GUI classes (for example, one derived from JFrame), when the JVM loads your class it will also need to load some other AWT classes. These can interact with java.awt.Toolkit in static initializers, which, as Martijn observed, causes the property to be checked before your main method has had a chance to set it.

Try moving the main method into a separate class that doesn't extend any Swing or AWT classes and see if it works.

Answer 5

try to put System.setProperty("com.apple.mrj.application.apple.menu.about.name", "Alessio"); on your main code before anything else

Answer 6

创建只有 main 方法的类允许您更改应用程序名称。