java JButton设置位置不工作
我是Java新手。我试图移动当前居中的JButton
,因此我将该位置更改为静态位置,但它没有移动。有什么想法吗
public Main(BufferedImage image) {
this.image = image;
}
protected void paintComponent(Graphics g) {
super.paintComponent(g);
// Draw image centered.
int x = (getWidth() - image.getWidth())/2;
int y = 0;//(getHeight() - image.getHeight())/2;
g.drawImage(image, x, y, this);
}
public static void main(String[] args) throws IOException {
String path = "img/visualizerLogo3.jpg";
BufferedImage image = ImageIO.read(new File(path));
Main contentPane = new Main(image);
contentPane.setOpaque(true);
contentPane.setLayout(new GridBagLayout());
JButton submit = new JButton("Load File");
submit.setLocation(600, 800);
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setContentPane(contentPane);
f.setSize(1200,1000);
//f.setLocation(200,200);
f.setVisible(true);
f.add(submit);
}
# 1 楼答案
GridBagLayout指示JButton的位置。要对其进行自由定位,应将内容窗格的布局设置为null(默认情况下为水平流布局)