在方法java中的action上设置按钮 [英] set button on action within method java

问题描述

如何用相同的方法设置按钮的动作?我正在创建按钮?

How could I set the action of a button within the same method I am creating the buttons?

我想要的方法是这样的:

My desired method would be something like this:

private void buttonsCreation() {
        //----------------creation of interactive buttons with text-----------------
        Button buttonForLoad = new Button("Load footage file");
        Button buttonForSave = new Button("Save footage file");
        Button buttonForSaveAs = new Button("Save as footage file");
        ButtonbuttonForRun = new Button("Run footage animation");
        Button buttonForTerminate = new Button("Stop footage animation");
        Button buttonForEditMenu = new Button("Edit current footage");
        //---------------setting the interaction of the buttons---------------------
        buttonForLoad.setOnAction(loadFootage());
        buttonForSave.setOnAction(saveFootage());
        buttonForSaveAs.setOnAction(saveAs());
        buttonForRun.setOnAction(runAnimation());
        buttonForTerminate.setOnAction(terminateAnimatino());
        buttonForEditMenu.setOnAction(editMenu());
    }

我希望setOnAction的属性调用这些方法，但是我收到此错误. ButonBase中的setOnAction不能应用于void.

I would like the attributes of setOnAction to call those methods, but I receive this error. setOnAction in ButonBase can not be applied to void.

我知道我可以使用ActionEvent作为参数来创建一个空句柄并使它工作，但是我想要的函数将在一个函数中，并且如果可能的话，请使用尽可能少的代码行.

I am aware I can create a void handle with an ActionEvent as a parameter and make it work, but my desired function will be in one function, and if it is possible with as least lines of code as possible.

非常感谢

推荐答案

要在动作处理程序中调用void函数，lambda表达式很有用.像这样:

To call void function in action handler, lambda expression is usefull. Like this:

buttonForLoad.setOnAction(e -> loadFootage());
buttonForSave.setOnAction(e -> saveFootage());
...

这篇关于在方法java中的action上设置按钮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IT屋！