我在程序中调用了一个新阶段,我想在按Escape键时关闭该阶段。我这样做是给我一个NullPointerException:
scene.setOnKeyPressed(new EventHandler<KeyEvent>() {
@Override
public void handle(KeyEvent t) {
KeyCode key = t.getCode();
if (key == KeyCode.ESCAPE){
stage.close();
}
}
});
最佳答案
尝试这个..
scene.addEventHandler(KeyEvent.KEY_PRESSED, new EventHandler<KeyEvent>
() {
@Override
public void handle(KeyEvent t) {
if(t.getCode()==KeyCode.ESCAPE)
{
System.out.println("click on escape");
Stage sb = (Stage)label.getScene().getWindow();//use any one object
sb.close();
}
}
});
关于javafx - JavaFx在按esc时关闭窗口?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/14357515/