I get a strange Nullpointer exception and I don't understand why. Can someone help me ?
Exception:
Exception in thread "LWJGL Application" java.lang.NullPointerException
at com.badlogic.gdx.scenes.scene2d.ui.ScrollPane.draw(ScrollPane.java:583)
at com.badlogic.gdx.scenes.scene2d.Group.drawChildren(Group.java:123)
at com.badlogic.gdx.scenes.scene2d.Group.draw(Group.java:57)
at com.badlogic.gdx.scenes.scene2d.ui.WidgetGroup.draw(WidgetGroup.java:163)
at com.badlogic.gdx.scenes.scene2d.ui.Table.draw(Table.java:119)
at com.solvapps.tests.NewStoryBook.draw(NewStoryBook.java:40)
My Code ACTOR:
public class NewStoryBook extends Actor {
Table table;
ScrollPane pane;
Table tableScroller;
public NewStoryBook(Skin skin) {
int w = Gdx.graphics.getWidth();
int h = Gdx.graphics.getHeight();
table = new Table();
table.setPosition(400, 400);
table.setSize(w / 3, h * 0.8f);
tableScroller = new Table();
tableScroller.add(new Label("bla bla",skin));
pane = new ScrollPane(tableScroller);
table.add(pane);
}
@Override
public void draw(Batch batch, float parentAlpha) {
super.draw(batch, parentAlpha);
table.draw(batch, parentAlpha);
}
My Code App:
public class StoryBoxTest4 extends ApplicationAdapter {
private Stage stage;
NewStoryBook newstoryBook;
public void create() {
stage = new Stage(new ScreenViewport());
Skin skin = new Skin(Gdx.files.internal(SkinManager.getSkin()));
newstoryBook = new NewStoryBook(skin);
stage.addActor(newstoryBook);
Gdx.input.setInputProcessor(stage);
}