在setResizable（false）之后强制JFrame不调整大小。命令不会工作

问题描述

我有一个简单的Atari突破程序，长话短说，我的一个功能是允许用户调整窗口大小几秒钟，然后再次使窗口不可调整大小。一切正常，窗口从不可调整大小到可调整大小几秒钟。应该发生的是，在几秒钟之后，窗口应该停止接受用于调整窗口大小的输入（IE：不应该可调整大小）。唯一的问题是，无论何时将其设置为不可调整大小，如果您将光标拖动到窗口上以调整其大小，它将继续调整大小。它只会在您放开窗口后激活窗口的不可调整大小的状态。我的问题是，在你放开窗户之前我该如何做到这一点，一旦计时器启动就取消你对调整大小的控制？

I have a simple Atari breakout program, and long story short, one of my powerups is to allow the user to resize the window for a few seconds, then make the window non-resizable again.Everything works fine, and the window goes from being not-resizable, to being resizable for a few seconds. What's supposed to happen, is after the few seconds are up, the window should stop accepting input for resizing the window (IE: should not be resizable). The only problem, is that whenever it's supposed to be set to non-resizable, if you keep your cursor dragging on the window to resize it, it keeps resizing. It will only activate the non-resizable state of the window after you let go of the window. My question, is how do I make this happen before you let go of the window, taking away your control of resizing, once the timer is up?

PS：我想要编程，以便在调用命令后立即阻止您调整窗口大小，而不是等待您放开鼠标。有什么建议吗？

P.S: I want to program to immediately keep you from resizing the window once the command is called, not waiting for you to let go of the mouse. Any suggestions?

这是一个简化的案例:(你有6秒的时间调整窗口大小并玩它）

Here is a simplified case: (You are given 6 seconds to resize the window and play with it)

package test;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.Timer;

public class Test {

    public static void main(String[] args) {
        JFrame testFrame = new JFrame();
        testFrame.setResizable(true);
        testFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        long endingTime = System.currentTimeMillis() + 6000;
        Timer testTimer = new Timer(100, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                if((endingTime - System.currentTimeMillis()) < 0){
                    testFrame.setResizable(false);
                }
            }
        });
        testFrame.setVisible(true);
        testTimer.start();
    }
}

推荐答案

使用Java的 Robot 类强制释放鼠标。我已经修改了下面的示例代码：

Use Java's Robot class to force a mouse release. I've modified your example code below:

public static void main(String[] args) {
  JFrame testFrame = new JFrame();
  testFrame.setResizable(true);
  testFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  Timer testTimer = new Timer(6000, new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
            testFrame.setResizable(false);
      Robot r;
      try {
        r = new Robot();
        r.mouseRelease( InputEvent.BUTTON1_DOWN_MASK);
      } catch (AWTException ex) {
        ex.printStackTrace();
      }
    }

  });
  testFrame.setVisible(true);
  testTimer.start();
}

这篇关于在setResizable（false）之后强制JFrame不调整大小。命令不会工作的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！