我正在尝试使用旋转轮的当前数量更新我的 JLabel,延迟增加代表减速轮。我已经尝试过 Thread.sleep()、Timer 和 invokeLater(),但我一定是在做一些非常错误的事情,因为过去几天我尝试过的任何事情都没有奏效。Thread.sleep 导致 GUI 只更新最后一件事,Timer 忽略延迟并在旋转完成之前打印结果,我根本无法使用 invokeLater() 来更新 JLabel。我应该做什么?
public void spin(int wheelSize, int initialDelay, int finalDelay, int delayIncrement, WheelCallback callback) {
/**
* Begins the spin on a random number within the wheelSize
*/
Random randomNum = new Random();
int currentNum = randomNum.nextInt((wheelSize - 0) + 1) + 0;
//frame.setLabel(Integer.toString(currentNum));
System.out.println(currentNum);
/**
* Loops the wheel until the finalDelay is met
*/
for(int i = initialDelay; i < finalDelay; i += delayIncrement) {
/**
* Causes the delay between numbers
*/
try {
Thread.sleep(i);
}
catch(InterruptedException e) {
}
/**
* Increments the number to the next number up on the wheel.
* If the number reaches the maximum, it is reset to the minimum
*/
currentNum++;
if(currentNum > wheelSize) {
currentNum = 0;
}
callback.nextNumber(currentNum, this);
}
callback.result(currentNum, this);
calculateResult(currentNum);
}
public void nextNumber(int nextNumber, GameEngine engine) {
frame.setLabel(Integer.toString(nextNumber));
}