class MyImageLoader{
static private ArrayList<MyListener> listeners = new ArrayList<>();
static private Executor executor = Executors.newCachedThreadPool();
public static void addListener(MyListener listener){
listeners.add(listener);}
public static void loadImage(Url url){
executor.execute(new Runnable(){
@Override
public void run(){
Image image= // ここでUrlから画像を読み込み
for(MyListener listener:listeners){
listener.loadImage(image);
}}});}}
interface MyListener{
public void loadImage(Image image);
}
class MyFXMLController{
final ImageView imageView = new ImageView();
MyFXMLController{
MyImageLoader.addListener(new MyListener(){
@Overide
public void loadImage(Image image){
Platform.runLator(new Runnable(){
@Override
public void run(){
imageView.setImage(image);
}});}});}
public void showImage(Url url){
MyImageLoader.loadImage(url);
}
}
言葉足らずですみません。概ね この状態です。(改行規制のためカッコを改行せずに閉じています)