setStyle ("background - fx - image :...") con Netbeans 7.4

Use Netbeans 7.4 e non riesco ad immagine di sfondo assegnare an AnchorPane UN oggetto.

L'immagine background.png TR trona nel source package insieme alla class che the use.

Ho scritto in diversi modi the training:

anchorpane.setStyle ("background - fx - image: url ('background.png');...") »

anchorpane.setStyle ("background - fx - image: url ("background.png");...") »

anchorpane.setStyle ("background - fx - image: url(\"background.png\ "');... »

my error e sempre lo stesso: java.lang.NullPointerException

Grazie

Alberto

Actually anchorpane era since null non avevo awarded fx:id nel file FXML.

Infine corrette sono the seguenti istruzioni:

The string image = MyClass.class.getResource("background.png").toExternalForm ();

anchorpane.setStyle ("background - fx - image: url (" "+ image +" ");") background - fx - position: Center Center; ») ;

Grazie

Alberto

Tags: Java

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