JavaFX文本框、按钮、列表框事件监听处理

javafx文本框、按钮、列表框事件监听处理

textfield textfield = new textfield();

//监听文本框输入值变化

textfield.textproperty().addlistener(this::textchange);

private void textchange(observablevalueobservable, string oldvalue, string newvalue){

}

//监听文本框焦点变化

textfield.focusedproperty().addlistener(this::focusedchange);

private void focusedchange(observablevalueobservable, boolean oldvalue, boolean newvalue){

}

//按键点击

textfield.setonkeypressed(new eventhandler() {

@override

public void handle(keyevent event) {

if(event.getcode().equals(keycode.enter)){

}

if(event.getcode().equals(keycode.up) && (selectedindex - 1) < stationnum){

//event.consume();可阻止原生事件进行，即文本框光标移动

}

if(event.getcode().equals(keycode.down) && (selectedindex + 1) > -1){

}

}

});

//按钮

button btn = new button("确定");

//点击

btn.setonaction(new eventhandler() {

@override

public void handle(actionevent event) {

}

});

//列表框

listview listview = new listview();

listview.addeventhandler(mouseevent.mouse_clicked, e ->{

//双击

if (e.getclickcount() == 2) {

}

//单击

if (e.getclickcount() == 1) {

}

});

//按键

listview.addeventhandler(keyevent.key_pressed, e ->{

//回车

if (e.getcode() == keycode.enter) {

}

//上键

if(e.getcode().equals(keycode.up)){

}

//下键

if(e.getcode().equals(keycode.down)){

}

});