Jar文件在Mac和Linux上有所不同

Question

嘿，我制作了一个java Projekt，它在Mac上运行得非常好，见截图1。 但是当我在linux上运行相同的项目时，似乎有些麻烦可能有人知道为什么会发生这种情况？似乎重绘在linux上无法正常工作。

private void startGame(){
        gameOver = false;
        loop = new Timer(10, new ActionListener() {

        @Override
        public void actionPerformed(ActionEvent x) {

board.play();
frame.repaint();
 }});
 loop.start()}

@Override
public void paint(Graphics g) {

    Point a = board.getBird().getLeftBottemCorner();
    Point b = (board.getBird().getRightUpCorner());
    g.setColor(Color.red);
    g.fillRect(a.x, a.y, b.x - a.x, b.y - a.y);
    drawHurdles(g);
    g.setColor(Color.red);
    g.drawString("Score: " + board.getBird().getHighScore(),10 , board.getBoardHight()+15);


}
    private void drawHurdles(Graphics g) {
g.setColor(Color.black);
ArrayList<Model.BOX> hurdles = board.getHindernisse().getHurdles();
Iterator<BOX> it = hurdles.iterator();
Point a;
Point b;
BOX akt;
int hoehe;
while (it.hasNext()) {
akt = it.next();
hoehe = akt.getRightUpCorner().y - akt.getLeftBottemCorner().y;
a = akt.getLeftBottemCorner();
b = akt.getRightUpCorner();
g.fillRect(a.x, a.y, b.x - a.x,  hoehe);
 System.out.println(a + ", " + b + ", " + hoehe);

}
}

也许有人知道为什么重绘不要在linux上清理？

Answer 1

您需要在super.paint(g);方法中调用paint，以消除绘制工件。但你甚至不应该在JFrame上绘画。而是在JPanel上绘制并覆盖paintComponent并调用super.paintComponent。请参阅Performing Custom Painting

上的示例和最佳做法

Answer 2

您可以尝试处理图形。

public void paint (Graphics g) {

       g.setColor (Color.white);
       g.fillRect (0,0,2000,1000);
       // your painting stuff here
       g.dispose();
}