我试过stage.close(),Platform.exit()和System.exit()无济于事;他们都关闭了应用程序,但直接关闭.如果没有按下 Robot 按Alt F4,有没有顺利的方法来做到这一点? (我也可以想象从算法中创建一个函数并在setOnCloseRequest()中调用它,以及我可能需要它的任何地方).
您可以从舞台获取事件处理程序并调用它.
stage.getOnCloseRequest() .handle( new WindowEvent( stage, WindowEvent.WINDOW_CLOSE_REQUEST ) )
但是你想要做的不仅仅是调用你的自定义关闭请求处理函数,而是激活一个关闭请求事件,它将运行你的处理程序和窗口的任何其他关闭事件处理程序(所以,默认情况下它也会关闭窗口).
stage.fireEvent( new WindowEvent( stage, WindowEvent.WINDOW_CLOSE_REQUEST ) )
示例应用程序
运行下面的示例(Java 8)以查看两种方法的行为之间的差异:
import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.VBox; import javafx.stage.Stage; import javafx.stage.WindowEvent; public class CloseMonitor extends Application { @Override public void start(Stage stage) { stage.setOnCloseRequest( event -> System.out.println("Close Requested") ); Button handleClose = new Button("Handle Close Request"); handleClose.setOnAction( event -> stage.getOnCloseRequest() .handle( new WindowEvent( stage, WindowEvent.WINDOW_CLOSE_REQUEST ) ) ); handleClose.setMaxWidth(Double.MAX_VALUE); Button fireClose = new Button("Fire Close Request"); fireClose.setOnAction( event -> stage.fireEvent( new WindowEvent( stage, WindowEvent.WINDOW_CLOSE_REQUEST ) ) ); fireClose.setMaxWidth(Double.MAX_VALUE); stage.setScene( new Scene( new VBox( 10, handleClose, fireClose ) ) ); stage.show(); stage.sizeToScene(); } public static void main(String[] args) { launch(args); } }
翻译自:https://stackoverflow.com/questions/24483686/how-to-force-javafx-application-close-request-programmatically