Я пытаюсь создать игру в LibGDX, в игре я создал диалог, который появится, когда мы нажмем кнопку Back Pressed. Однако когда появляется диалоговое окно, изображения с экрана дисплея перекрывают диалог, из-за которого мое содержимое получилоскрытый. 
Ниже приведен мой код
public class GamePlayScreen extends AbstractScreen {
private String TAG = "Game Play Screen";
private SpriteBatch batch;
private OrthographicCamera camera;
private Stage stage;
private int width = 0;
private int height = 0;
private GameDrawer gameDrawer;
private AbstractGameController gameController;
public GamePlayScreen(Assests assests) {
this.assests = assests;
camera = new OrthographicCamera();
width = Gdx.graphics.getWidth();
height = Gdx.graphics.getHeight();
camera.setToOrtho(false, width, height);
camera.update();
batch = new SpriteBatch();
FillViewport viewport = new FillViewport(width, height, camera);
viewport.update(width, height, true);
stage = new Stage(viewport);
gameDrawer = new GameDrawer(batch, assests);
gameController = new GameController(camera, assests);
Gdx.input.setCatchKey(Input.Keys.BACK, true);
}
public void show() {
// Gdx.app.log(TAG, "Enters show method");
Image backgroundImage = new Image(assests.manager.get(Assests.backgroundImageTexture));
backgroundImage.setSize(width, height);
stage.addActor(backgroundImage);
InputMultiplexer multiplexer = new InputMultiplexer();
multiplexer.addProcessor(stage);
multiplexer.addProcessor(new GestureDetector(new TouchController(gameController)));
Gdx.input.setInputProcessor(multiplexer);
batch.setProjectionMatrix(camera.combined);
// Gdx.app.log(TAG, "Executed show method succussfully");
}
public void render(float delta) {
//Gdx.app.log(TAG, "Enters render method");
Gdx.gl.glClearColor(0.187f, 0.246f, 0.621f, 1.0f);
Gdx.gl.glClear(16384);
if (Gdx.input.isKeyPressed(Input.Keys.BACK))
onBackPressed();
stage.act();
stage.draw();
batch.begin();
gameController.processGameRender();
gameDrawer.drawDealtDeck(gameController.getDealtDeck());
gameDrawer.drawDiscardedDeck(gameController.getDiscardedDeck());
gameDrawer.drawPlayerDeck(gameController);
batch.end();
// Gdx.app.log(TAG, "render metod executed succussfully");
}
@Override
public void onBackPressed() {
Gdx.app.log(TAG, "Back Key Pressed");
Skin skin = assests.manager.get(Assests.glassySkin);
Button btnQuit = new TextButton("Quit", skin);
Button btnRestart = new TextButton("Restart", skin);
Button btnCancel = new TextButton("Cancel", skin);
Dialog dialog = new Dialog("Are you sure you want to exit", skin) {
@Override
protected void result(Object object) {
super.result(object);
}
};
dialog.button(btnQuit);
dialog.button(btnCancel);
dialog.button(btnRestart);
dialog.show(stage);
dialog.padLeft(50.0f);
dialog.padRight(50.0f);
dialog.padBottom(10.0f);
dialog.show(this.stage);
/* Dialog dialog= new Dialog("Are you sure want to Exit",skin){
@Override
public float getPrefWidth() {
return width/2;
}
@Override
public float getPrefHeight() {
return height/2;
}
};
dialog.setModal(false);
dialog.setMovable(false);
dialog.setResizable(false);
dialog.setFillParent(false);
btnQuit.addListener(new InputListener(){
@Override
public boolean touchDown(InputEvent event, float x, float y, int pointer, int button) {
Gdx.app.log(TAG,"Quit Button Pressed");
return true;
}
});
float btnsize=40.0f;
Table table=new Table();
table.add(btnQuit).width(btnsize).height(btnsize);
table.add(btnRestart).width(btnsize).height(btnsize);
table.add(btnCancel).width(btnsize).height(btnsize);
dialog.getButtonTable().add(table).center();
dialog.show(stage).setPosition(width/4,height/4);
stage.addActor(dialog);
*/
}
}
Любое предложение относительно того, как я могу остановить наложение изображений, будет действительно полезным.