How to call a method written in Main class inside of a Controller? [duplicate]












0
















This question already has an answer here:




  • Calling non-static methods from other classes

    2 answers



  • Passing Parameters JavaFX FXML

    8 answers




I have a login view, when I click the Sign In button I want my window to change its view. So, when I press the button, it calls the function inside of a controller that calls a function located inside of Main class.



Is there any way to achieve what I want? And is it necessary to have the same parent node in all fxml files? (ex. AnchorPane, GridPane etc.)



I have looked to the code of login of JavaFX examples, but can't understand how they do it.



I also tried to change the scene, but the nodes inside of it behave like they don't belong to that window.



Main.java



public void changeWindow() {

    Parent root = FXMLLoader.load(getClass().getResource("template/sampe.fxml"));

    window = primaryStage;

    window.setTitle("Some");

    window.setResizable(false);

    window.initStyle(StageStyle.UNDECORATED);



    Scene scene = new Scene(root);

    window.setScene(scene);

    window.show();

}


LoginController.java



public void signInClicked() {

    Main.changeWindow();

}


I want when button clicked, window changes its view.






java javafx stage







share|improve this question















marked as duplicate by fabian java
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 Jan 18 at 20:43


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.



















  • I case you don't know how to combine the linked questions: The issue is that you do not have access to a instance of your Main class and try to call a non-static method. (Using just any instance wouldn't work btw.) The second duplicate describes ways of passing the application instance to the controller. I honestly do not know where the assumption that fxml files are limited in the node type comes from(You already know 2 different types are possible, what makes you think there's a limitation on some group?It's not even necessary to create nodes, but other objects cannot be added to a scene).

    – fabian
    Jan 18 at 20:54
















0
















This question already has an answer here:




  • Calling non-static methods from other classes

    2 answers



  • Passing Parameters JavaFX FXML

    8 answers




I have a login view, when I click the Sign In button I want my window to change its view. So, when I press the button, it calls the function inside of a controller that calls a function located inside of Main class.



Is there any way to achieve what I want? And is it necessary to have the same parent node in all fxml files? (ex. AnchorPane, GridPane etc.)



I have looked to the code of login of JavaFX examples, but can't understand how they do it.



I also tried to change the scene, but the nodes inside of it behave like they don't belong to that window.



Main.java



public void changeWindow() {

    Parent root = FXMLLoader.load(getClass().getResource("template/sampe.fxml"));

    window = primaryStage;

    window.setTitle("Some");

    window.setResizable(false);

    window.initStyle(StageStyle.UNDECORATED);



    Scene scene = new Scene(root);

    window.setScene(scene);

    window.show();

}


LoginController.java



public void signInClicked() {

    Main.changeWindow();

}


I want when button clicked, window changes its view.






java javafx stage







share|improve this question















marked as duplicate by fabian java
Users with the  java badge can single-handedly close java questions as duplicates and reopen them as needed.

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 Jan 18 at 20:43


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.



















  • I case you don't know how to combine the linked questions: The issue is that you do not have access to a instance of your Main class and try to call a non-static method. (Using just any instance wouldn't work btw.) The second duplicate describes ways of passing the application instance to the controller. I honestly do not know where the assumption that fxml files are limited in the node type comes from(You already know 2 different types are possible, what makes you think there's a limitation on some group?It's not even necessary to create nodes, but other objects cannot be added to a scene).

    – fabian
    Jan 18 at 20:54














0












0








0









This question already has an answer here:




  • Calling non-static methods from other classes

    2 answers



  • Passing Parameters JavaFX FXML

    8 answers




I have a login view, when I click the Sign In button I want my window to change its view. So, when I press the button, it calls the function inside of a controller that calls a function located inside of Main class.



Is there any way to achieve what I want? And is it necessary to have the same parent node in all fxml files? (ex. AnchorPane, GridPane etc.)



I have looked to the code of login of JavaFX examples, but can't understand how they do it.



I also tried to change the scene, but the nodes inside of it behave like they don't belong to that window.



Main.java



public void changeWindow() {

    Parent root = FXMLLoader.load(getClass().getResource("template/sampe.fxml"));

    window = primaryStage;

    window.setTitle("Some");

    window.setResizable(false);

    window.initStyle(StageStyle.UNDECORATED);



    Scene scene = new Scene(root);

    window.setScene(scene);

    window.show();

}


LoginController.java



public void signInClicked() {

    Main.changeWindow();

}


I want when button clicked, window changes its view.






java javafx stage







share|improve this question

















This question already has an answer here:




  • Calling non-static methods from other classes

    2 answers



  • Passing Parameters JavaFX FXML

    8 answers




I have a login view, when I click the Sign In button I want my window to change its view. So, when I press the button, it calls the function inside of a controller that calls a function located inside of Main class.



Is there any way to achieve what I want? And is it necessary to have the same parent node in all fxml files? (ex. AnchorPane, GridPane etc.)



I have looked to the code of login of JavaFX examples, but can't understand how they do it.



I also tried to change the scene, but the nodes inside of it behave like they don't belong to that window.



Main.java



public void changeWindow() {

    Parent root = FXMLLoader.load(getClass().getResource("template/sampe.fxml"));

    window = primaryStage;

    window.setTitle("Some");

    window.setResizable(false);

    window.initStyle(StageStyle.UNDECORATED);



    Scene scene = new Scene(root);

    window.setScene(scene);

    window.show();

}


LoginController.java



public void signInClicked() {

    Main.changeWindow();

}


I want when button clicked, window changes its view.





This question already has an answer here:




  • Calling non-static methods from other classes

    2 answers



  • Passing Parameters JavaFX FXML

    8 answers







java javafx stage




java javafx stage






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jan 18 at 20:58









Carlos Abraham

5131418




5131418










asked Jan 18 at 20:29









14DENDIK14DENDIK

46




46




marked as duplicate by fabian java
Users with the  java badge can single-handedly close java questions as duplicates and reopen them as needed.

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 Jan 18 at 20:43


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.









marked as duplicate by fabian java
Users with the  java badge can single-handedly close java questions as duplicates and reopen them as needed.

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 Jan 18 at 20:43


This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.















  • I case you don't know how to combine the linked questions: The issue is that you do not have access to a instance of your Main class and try to call a non-static method. (Using just any instance wouldn't work btw.) The second duplicate describes ways of passing the application instance to the controller. I honestly do not know where the assumption that fxml files are limited in the node type comes from(You already know 2 different types are possible, what makes you think there's a limitation on some group?It's not even necessary to create nodes, but other objects cannot be added to a scene).

    – fabian
    Jan 18 at 20:54



















  • I case you don't know how to combine the linked questions: The issue is that you do not have access to a instance of your Main class and try to call a non-static method. (Using just any instance wouldn't work btw.) The second duplicate describes ways of passing the application instance to the controller. I honestly do not know where the assumption that fxml files are limited in the node type comes from(You already know 2 different types are possible, what makes you think there's a limitation on some group?It's not even necessary to create nodes, but other objects cannot be added to a scene).

    – fabian
    Jan 18 at 20:54

















I case you don't know how to combine the linked questions: The issue is that you do not have access to a instance of your Main class and try to call a non-static method. (Using just any instance wouldn't work btw.) The second duplicate describes ways of passing the application instance to the controller. I honestly do not know where the assumption that fxml files are limited in the node type comes from(You already know 2 different types are possible, what makes you think there's a limitation on some group?It's not even necessary to create nodes, but other objects cannot be added to a scene).

– fabian
Jan 18 at 20:54





I case you don't know how to combine the linked questions: The issue is that you do not have access to a instance of your Main class and try to call a non-static method. (Using just any instance wouldn't work btw.) The second duplicate describes ways of passing the application instance to the controller. I honestly do not know where the assumption that fxml files are limited in the node type comes from(You already know 2 different types are possible, what makes you think there's a limitation on some group?It's not even necessary to create nodes, but other objects cannot be added to a scene).

– fabian
Jan 18 at 20:54












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