Java机器人不读取颜色运行答案

【问题标题】：Java robot not reading color runningJava机器人不读取颜色运行
【发布时间】：2015-01-06 15:32:39
【问题描述】：

当给定像素为白色时，机器人的行为与预期一致。但是当我用不同的颜色测试它然后变成白色时，它仍然卡在循环中：

(...)
stuck in while->else
false
(...)

可能是什么问题？代码如下：

public class test {
public static boolean ifFinished = false;

public static void main(String[] args) throws AWTException, IOException,
        InterruptedException {
    // Create a Robot object
    Robot myRobot = new Robot();

    // pick a color of given pixels
    Color color = myRobot.getPixelColor(912, 487);

    System.out.println("Red color of pixel   = " + color.getRed());
    System.out.println("Green color of pixel = " + color.getGreen());
    System.out.println("Blue color of pixel  = " + color.getBlue());

    while (ifFinished == false) {
        //Checks if color is white
        if (color.getRed() == 255 && color.getGreen() == 255
                && color.getBlue() == 255) {
            ifFinished = true;  //if it is set ifFinished to true
            System.out.println("stuck in while->if");
        } else
            Thread.sleep(1000);
        ifFinished = false;
        System.out.println("stuck in while->else");
        System.out.println(ifFinished);
    }
}

}

【问题讨论】：

标签： java colors awtrobot

【解决方案1】：

您需要在循环内使用 Robot 移动获取颜色的行，否则将永远不会更新。

while (ifFinished == false) {

    Color color = myRobot.getPixelColor(912, 487);   // <==== move inside loop

    System.out.println("Red color of pixel   = " + color.getRed());
    System.out.println("Green color of pixel = " + color.getGreen());
    System.out.println("Blue color of pixel  = " + color.getBlue());

    //Checks if color is white
    if (color.getRed() == 255 && color.getGreen() == 255
            && color.getBlue() == 255) {
        ifFinished = true;  //if it is set ifFinished to true
        System.out.println("stuck in while->if");
    } else
        Thread.sleep(1000);
    ifFinished = false;
    System.out.println("stuck in while->else");
    System.out.println(ifFinished);
}

【讨论】：