Java JTextField - 如何设置背景颜色？
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JTextField - how to set background color?
提问by DamDev
I want to know how to set color of my JTextFieldcomponent. I tried this way:
我想知道如何设置JTextField组件的颜色。我试过这种方式：
setBackground(Color.white)
and it sets a white color, but when the field is marked. I want the field to be white immediately after my program starts and without any user interaction.
并且它设置为白色，但是当该字段被标记时。我希望该字段在我的程序启动后立即变为白色并且没有任何用户交互。
Thanks for help!
感谢帮助！
采纳答案by RAP
You can change background color by this code
您可以通过此代码更改背景颜色
textField.setBackground(Color.RED);
You should also check this Change JTextField enabled background color
您还应该检查此更改 JTextField 启用背景颜色
回答by user1982116
I cannot replicate the problem you're having. Perhaps you are initially seeing the background color of the component holding the JTextField, rather than the JTextField's background.
我无法复制您遇到的问题。也许您最初看到的是包含 JTextField 的组件的背景颜色，而不是 JTextField 的背景。
JFrame f = new JFrame();
f.setBackground(Color.BLUE);
f.setLayout(new GridLayout(1, 1));
JTextField tf = new JTextField();
tf.setBackground(Color.GREEN);
f.add(tf);
f.setSize(500, 500);
f.setVisible(true);
Thread.sleep(2500);
tf.setBackground(Color.RED);
