两个不同JFrame之间的通信？ [英] Communication between two different JFrames?

问题描述

你好，也许你已经听说过GIMP或类似使用不同帧的东西作为一个完整的gui所以我想知道当两个（可能是多个）帧加载到内存中并且可见时如何进行这种帧通信。

Hello as maybe you have heard about GIMP or something like that which uses different frames As a complete gui so I was wondering how to do such frames communications when both(maybe multiple) frames are loaded in memory and are visible.

我已经阅读了一些文章，但它们并不那么令人满意，如果有人有一个很好的例子或教程那么请分享。

I have gone through some articles but they were not so satisfactory, if anyone have a good example or tutorial then please share.

问候
Alok sharma

Regards Alok sharma

推荐答案

基本上，这只是在框架中引用框架A的问题B，以及对帧A中帧B的引用：

Basically, it's just a matter of having a reference to frame A in frame B, and a reference to frame B in frame A :

public class FrameA extends JFrame {
    private FrameB frameB;

    public void setFrameB(FrameB frameB) {
        this.frameB = frameB;
    }

    public void foo() {
        // change things in this frame
        frameB.doSomethingBecauseFrameAHasChanged();
    }
}

public class FrameB extends JFrame {
    private FrameA frameA;

    public void setFrameA(FrameA frameA) {
        this.frameA = frameA;
    }

    public void bar() {
        // change things in this frame
        frameA.doSomethingBecauseFrameBHasChanged();
    }
}

public class Main {
    public static void main(String[] args) {
        FrameA frameA = new FrameA();
        FrameB frameB = new FrameB();
        frameA.setFrameB(frameB);
        frameB.setFrameA(frameA);
        // make both frames visible
    }
}

最多当时，引入接口来解耦帧（听众等），或者使用中介来避免所有帧之间的链接过多，但你应该明白这一点。

Most of the time, interfaces are introduced to decouple the frames (listeners, etc.), or a mediator is used in order to avoid too much linkings between all the frames, but you should get the idea.

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