如何在JavaFX中重新加载应用程序? [英] How to reload an Application in JavaFX?

问题描述

我有一个带有 New Game 按钮的小游戏.按下 New Game (新游戏)按钮后，有许多变量需要重置.是否有任何方法可以轻松地重新加载整个应用程序，或者有其他方法可以刷新场景，舞台或变量?我只想在应用程序首次加载时将其带入初始阶段.

我在互联网上浏览了不同的主题，在这里也阅读了许多问题和答案，但是我没有简单的方法来实现它.大多数答案都建议重用整个代码或将整个代码放在类中并重新加载.

已审查的问题:

• 如何在以下情况下重新启动JavaFX应用程序按钮被点击了吗?
• 如何重新加载或用javafx 1.3刷新场景

解决方案

我当然会建议一种干净的方法，如您所链接的问题中所述.

但是，一种快速而肮脏的方法可能是:

restartButton.setOnAction( __ ->
{
  System.out.println( "Restarting app!" );
  primaryStage.close();
  Platform.runLater( () -> new ReloadApp().start( new Stage() ) );
} );

关闭主要阶段，创建一个新阶段并将其传递给您的App的新实例.我无法对此骇客的记忆行为做任何保证.小心使用.

完整示例: https://gist.github.com/bugabinga/ce9e0ae2328ba34133bd

I have a small game which has New Game button. There are many variables which need reset when the New Game button is pressed. Is there any method which can easily reload the whole application or any alternative to refresh the scene, stage or variables? I just want to bring the application to it's initial stage when It's first loaded.

I went through different topics on internet and read many questions and answers here also, but I there is no easy method to implement it. Most of the answers suggest to reuse the whole code or put the whole code in class and reload it.

Questions reviewed:

• How to restart a JavaFX application when button is clicked?
• How can you reload or refresh a scene with javafx 1.3

解决方案

I would certainly recommend a clean approach as discussed in the questions you linked.

A quick and dirty way however might be the following:

restartButton.setOnAction( __ ->
{
  System.out.println( "Restarting app!" );
  primaryStage.close();
  Platform.runLater( () -> new ReloadApp().start( new Stage() ) );
} );

Close the main stage, create a new one and pass it to a new instance of your App. I cannot make any guarantees about the memory behavior of this hack. Use it carefully.

Full example: https://gist.github.com/bugabinga/ce9e0ae2328ba34133bd

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