[FIXED] ImageView Change Listener in JavaFX

Issue

How can I set up a change listener for an ImageView's image property?

//dstOne is an ImageView
dstOne.imageProperty().addListener(new ChangeListener<Boolean>() {
            public void changed() {

            }
        });

Solution

public void changed() is not the correct method signature for the ChangeListener interface. The image property is not a Boolean either. Fix that. This is the interface method:

void changed(ObservableValue<? extends T> observable, T oldValue, T newValue)

For the image property the type (T) is Image. https://docs.oracle.com/javase/8/javafx/api/javafx/scene/image/ImageView.html#imageProperty

Using any decent IDE, the correct method signature could have been completed for you.

Answered By - swpalmer
Answer Checked By - Mary Flores (JavaFixing Volunteer)