How to get JButton default background color?

问题

I use this myButton.setBackground(myColor) to change the JButton background color to my color, how to find it's original default background color so I can change it back? I know I can save its default background color before I change and use that, but I wonder if Java stores it somewhere so that maybe I can call something like: myButton.getClass.getDefaultBackground() to get it back ?

回答1:

btn.setBackground(new JButton().getBackground());

how about this... it will get the default color of button

回答2:

myButton.setBackground(null)

changes it back to the default color.

回答3:

This might help:

http://java.sun.com/j2se/1.5.0/docs/api/java/awt/SystemColor.html

Toolkit.getDesktopProperty(java.lang.String)
Toolkit.getDesktopProperty("control");
// control - The color rendered for the background of control panels and control objects, such as pushbuttons.

回答4:

Don't try to get background from Jframe or other elements to apply it on the button; if you already changed it do this:

ElementToStyle.setBackground(null);

回答5:

make a new button "db"
make a new variable type Color "jbb"
i.e. - Color jbb = db.getBackground();

now the default background color is stored in the Color jbb which you can now use as the color you want to find/use

回答6:

   Color cbt= jButton6.getBackground();

        String color_button=cbt.getRed()+","+cbt.getGreen()+","+cbt.getBlue();

if you wont get RGB color button try this code

回答7:

It works both with:

button.setBackground(null);

and

button.setBackground(new JButton().getBackground());

(when you create a new JButton, its background color is initialized as a null color)
So, choose the one you consider to be the best for your project

来源：https://stackoverflow.com/questions/1358398/how-to-get-jbutton-default-background-color

标签

colors

background

default

jbutton