[英]Why is thread.sleep crashing my JavaFX app?
我有一个for循环遍历游戏中的所有玩家。 在下一次迭代之前,我想让当前玩家进行3分钟的选择(这是画布鼠标点击事件)。 我尝试的一切都没有错误地崩溃我的应用程序。 我已经在这几个小时了,不知道发生了什么。 我究竟做错了什么?
startGame.addEventHandler(MouseEvent.MOUSE_CLICKED,
new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent e) {
gameStatus = "Started";
players.add(new Player(0, "Amrit"));
players.add(new Player(1, "Tyler"));
players.add(new Player(2, "Scott"));
players.add(new Player(3, "Ryker"));
//Select first two settlements with one road extending from each
for (int s = 0; s < 2; s++) {
for (int p = 0; p < players.size(); p++) {
phase = "Pick Settlements";
playerTurn = p;
//Loop through all tiles
for (int t = 0; t < tiles.length; t++) {
//Loop through the vertices of the current tile
for (int v = 0; v < tiles[t].vertices.length; v++) {
drawCircle(gc, new Point(tiles[t].vertices[v].x, tiles[t].vertices[v].y), (int) (windowHeight * .05), true, true, "rgba(255, 238, 144, .3)", 0);
}
}
gc.setFill(Color.web("0xFFEB8A"));
gc.strokeText(players.get(p).name + ", please place your first settlement!", windowHeight * .95, windowWidth * .85);
selected = false;
canvas.addEventFilter(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
// @Override
@Override
public void handle(final MouseEvent event) {
if (!pointClicked().equals(0)) {
players.get(playerTurn).settlementsAvail--;
selected = true;
}
}
});
try
{
Thread.sleep(1000 * 60 * 3);
}
catch(InterruptedException er)
{
// this part is executed when an exception (in this example InterruptedException) occurs
}
}
}
gameStatus = "Ended";
}
});
你正在FX应用程序线程上睡觉。 这将冻结整个GUI,使其无法处理用户输入。 而是使用TimeLine
:
Timeline timer = new Timeline(
new KeyFrame(Duration.seconds(60 * 3), event -> finishedSleeping())
);
timer.play();
或javafx Task
:
Task<Void> timer = new Task<Void>() {
@Override
protected Void call() throws Exception {
try {
Thread.sleep(1000 * 60 * 3);
} catch (InterruptedException e) {}
return null;
}
};
timer.setOnSucceeded(event -> finishedSleeping());
new Thread(timer).start();
在这个例子中,睡眠发生在与FX应用程序线程不同的线程上。 一旦3分钟finishedSleeping()
将在FX应用程序线程上调用finishedSleeping()
。
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