Java等待功能 [英] Java Wait Function

问题描述

我想知道你们是否可以帮助我。我正在尝试使用Java的内置图形模块制作一个动画程序。事实是，Java一次执行所有操作；不同的动画之间没有任何时间。最终产品只是最后一张图片。我需要一个在每张图片之间都放半秒的功能。

I was wondering if you guys could help me out. I'm trying to make an animation program with Java's built in graphics module... The thing is, Java executes everything at once; there isn't any time between the different animations. The end product is just the last picture. I need a function that puts like half a second in between each of the pictures.

感谢您的帮助。

规格：Blue-J，JDK 6。

Specs: Blue-J, JDK 6.

编辑：Btw，我是Java新手，这是一个阶级的事情。任务是制作动画，然后按 c前进每一帧，但我认为那是个贫民窟，所以我想要更好的东西。

Btw, I'm a Java Newbie, and this is a class thing. The assignment was to make an animation, and press 'c' to go forward each frame, but I think thats kinda ghetto, so I want something better.

推荐答案

创建 javax.swing.Timer ，它每X毫秒执行一次，并在每次触发时绘制一帧。

Create a javax.swing.Timer that executes each X milliseconds, and draws one frame each time it is triggered.

这是来自Javadoc的示例：

This is the example from the javadoc:

  int delay = 1000; //milliseconds
  ActionListener taskPerformer = new ActionListener() {
      public void actionPerformed(ActionEvent evt) {
          //...Perform a task...
      }
  };
  new Timer(delay, taskPerformer).start();

修改延迟，例如20毫秒如果您的绘画时间不长，那将每秒提供约50帧。

Modify the delay, to e.g. 20ms. That will give you about 50 frames per second if your painting doesn't take too long.

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