在for循环中禁用JPanel上的JComponents:恼人的延迟

时间:2013-03-06 15:06:38

标签: java swing jpanel

我有一个带有几个JPanel的JFrame。一个是带有JButtons的GridLayout(4乘4)的boardPanel。另一个是controlPanel,它有一个包含JTextField和两个JButton的FlowLayout。

我有两个方法enableBoard()和disableBoard()。在那些方法中,我通过for循环将boardPanel和controlPanel中的每个组件setEnabled()设置为true或false。这一切都发生在摆动计时器运行时。当我启动计时器并因此启动enableBoard()(它通过disableBoard禁用)它有点工作,但往往有一个延迟,所以不是所有按钮在同一时刻被禁用,我怀疑它与计时器有关因为延迟似乎在几秒钟内发生......以下是重要的方法:

public void disableBord() {
    Component[] boardcomps = boardPanel.getComponents();
    for(int i = 0; i < bordcomps.length; i++) {
        boardcomps[i].setEnabled(false);
    }

    Component[] checkComps = controlPanel.getComponents();
    for(int i = 0; i < checkComps.length; i++) {
        checkComps[i].setEnabled(false);
    }
}

public void enableBord() {
    Component[] boardcomps = boardPanel.getComponents();
    for(int i = 0; i < bordcomps.length; i++) {
        boardcomps[i].setEnabled(true);
    }

    Component[] checkComps = controlPanel.getComponents();
    for(int i = 0; i < checkComps.length; i++) {
        checkComps[i].setEnabled(true);
    }
}

运行的计时器:

timer = new Timer(1000, new ActionListener() {
        int time = game.getSeconds()+4;
        @Override
        public void actionPerformed(ActionEvent e) {
            if (time == game.getSeconds()+4) {
                lblFeedback.setText("3");
                lblTime.setText(game.secToMinSec(game.getSeconds()));
                time--;
            } else if (time == game.getSeconds()+3) {
                lblFeedback.setText("2");
                lbltime.setText(game.secToMinSec(game.getSeconds()));
                time--;
            } else if (time == game.getSeconds()+2) {
                lblFeedback.setText("1");
                lblTime.setText(game.secToMinSec(game.getSeconds()));
                time--;
            } else if (time == game.getSeconds()+1) {
                lblFeedback.setText("Start!");
                lblTime.setText(game.secToMinSec(time));
                time--;
                enableBord();
            } else if(time == 0) {
                lblTime.setText("0:00");
                lblFeedback.setText("Game finished!");
                disableBord();
                game.endeGame();
                timer.stop();
            } else if (time ==  game.getSeconds()) {
                lblTime.setText(game.secToMinSec(time));
                time--;
            } else {
                lblTime.setText(game.secToMinSec(time));
                time--;
            }
        }
    });

延迟看起来像这样:

Delay when disabling JComponents

1 个答案:

答案 0 :(得分:1)

适当的重绘();循环中的每个setEnable()似乎都解决了我的问题!