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JavaFX 启动第二个 GUI

转载 作者:行者123 更新时间:2023-11-30 10:19:07 25 4
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我想在下面隐藏我的创建帐户 gui 后调用我的 LoginUI gui,但我很难让它工作。这是我的 createAccountUI 部分:

package myworkouts.presentation;

import java.util.logging.Level;
import java.util.logging.Logger;
import myworkouts.service.*;
import myworkouts.domain.*;

import javafx.geometry.Insets;
import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import javafx.scene.Node;

import javafx.geometry.HPos;
import javafx.scene.layout.*;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javax.swing.JOptionPane;


public class CreateAccountUI extends Application {

@Override
public void start(Stage primaryStage) throws Exception {

primaryStage.setTitle("Create Account Form JavaFX Application");

// Create the registration form grid pane
GridPane gridPane = createRegistrationFormPane();
// Add UI controls to the registration form grid pane
addUIControls(gridPane);
// Create a scene with registration form grid pane as the root node
Scene scene = new Scene(gridPane, 800, 500);
// Set the scene in primary stage
primaryStage.setScene(scene);

scene.getStylesheets().add
(CreateAccountUI.class.getResource("Login.css").toExternalForm());
primaryStage.show();
}


private GridPane createRegistrationFormPane() {
// Instantiate a new Grid Pane
GridPane gridPane = new GridPane();

// Position the pane at the center of the screen, both vertically and horizontally
gridPane.setAlignment(Pos.CENTER);

// Set a padding of 20px on each side
gridPane.setPadding(new Insets(40, 40, 40, 40));

// Set the horizontal gap between columns
gridPane.setHgap(10);

// Set the vertical gap between rows
gridPane.setVgap(10);

// Add Column Constraints

// columnOneConstraints will be applied to all the nodes placed in column one.
ColumnConstraints columnOneConstraints = new ColumnConstraints(100, 100, Double.MAX_VALUE);
columnOneConstraints.setHalignment(HPos.RIGHT);

// columnTwoConstraints will be applied to all the nodes placed in column two.
ColumnConstraints columnTwoConstrains = new ColumnConstraints(200,200, Double.MAX_VALUE);
columnTwoConstrains.setHgrow(Priority.ALWAYS);

gridPane.getColumnConstraints().addAll(columnOneConstraints, columnTwoConstrains);

return gridPane;
}

private void addUIControls(GridPane gridPane) {
// Add Header

Text headerLabel = new Text("Create Account");

headerLabel.getStyleClass().add("header");

gridPane.add(headerLabel, 0,0,2,1);
GridPane.setHalignment(headerLabel, HPos.CENTER);
GridPane.setMargin(headerLabel, new Insets(20, 0,20,0));


// Add usernam Label
Label usernameLabel = new Label("Username*: ");
gridPane.add(usernameLabel, 0,1);

// Add unsername Text Field
TextField usernameField = new TextField();
usernameField.setPrefHeight(40);
gridPane.add(usernameField, 1,1);

// Add Password Label
Label passwordLabel = new Label("Password* : ");
gridPane.add(passwordLabel, 0, 2);

// Add Password Field
PasswordField passwordField = new PasswordField();
passwordField.setPrefHeight(40);
gridPane.add(passwordField, 1, 2);

// Add confirm Password Label
Label conpasswordLabel = new Label("Confirm pwd* : ");
gridPane.add(conpasswordLabel, 0, 3);

// Add confirm Password Field
PasswordField confirmPasswordFld = new PasswordField();
confirmPasswordFld.setPrefHeight(40);
gridPane.add(confirmPasswordFld, 1, 3);

// Add first name Label
Label fnameLabel = new Label("First name : ");
gridPane.add(fnameLabel, 0,4);

// Add first name Text Field
TextField fnameField = new TextField();
fnameField.setPrefHeight(40);
gridPane.add(fnameField, 1,4);

// Add last name Label
Label lnameLabel = new Label("Last name : ");
gridPane.add(lnameLabel, 0,5);

// Add last name Text Field
TextField lnameField = new TextField();
lnameField.setPrefHeight(40);
gridPane.add(lnameField, 1,5);

// Add Email Label
Label emailLabel = new Label("Email ID : ");
gridPane.add(emailLabel, 0, 6);

// Add Email Text Field
TextField emailField = new TextField();
emailField.setPrefHeight(40);
gridPane.add(emailField, 1, 6);

// Add Required Label
Label requireLabel = new Label("Required * ");
gridPane.add(requireLabel, 0,8);

// Add Submit Button
Button createButton = new Button("Create");
createButton.setPrefHeight(40);
createButton.setDefaultButton(true);
createButton.setPrefWidth(100);
gridPane.add(createButton, 1,7);
GridPane.setHalignment(createButton, HPos.CENTER);
GridPane.setMargin(createButton, new Insets(20, 0,20,0));

// Add Cancel Button
Button cancelButton = new Button("Cancel");
cancelButton.setPrefHeight(40);
cancelButton.setDefaultButton(true);
cancelButton.setPrefWidth(100);
gridPane.add(cancelButton, 1,7);
GridPane.setHalignment(cancelButton, HPos.RIGHT);
GridPane.setMargin(cancelButton, new Insets(20, 0,20,0));

cancelButton.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent e) {
System.exit(0);
}
});


createButton.setOnAction(new EventHandler<ActionEvent>() {

@Override
public void handle(ActionEvent e) {
Login login = new Login();
login.setUsername(usernameField.getText());
login.setPassword(new String(passwordField.getText()));
if (!login.validate()) {
JOptionPane.showMessageDialog(null, "Must supply a username & password", "Error",
JOptionPane.ERROR_MESSAGE);
return;
}

String confirmPassword = new String(confirmPasswordFld.getText());
if (!confirmPassword.equals(login.getPassword())) {
JOptionPane.showMessageDialog(null, "Passwords don't match; try again", "Error",
JOptionPane.ERROR_MESSAGE);
return;
}

Account account = new Account();
account.setFirstName(fnameField.getText());
account.setLastName(lnameField.getText());
account.setLogin(login);
boolean isValid = account.validate();
System.out.println(isValid);
if (!isValid) {
JOptionPane.showMessageDialog(null, "Must supply first and last names", "Error",
JOptionPane.ERROR_MESSAGE);
return;
} else {
// all the fields are non empty; create the account
AccountSvcCacheImpl impl = AccountSvcCacheImpl.getInstance();
account = impl.create(account);
JOptionPane.showMessageDialog(null, "Congratulations, your account has been created", "Account created",
JOptionPane.INFORMATION_MESSAGE);
((Node)e.getSource()).getScene().getWindow().hide();
// start LoginUI
LoginUI loginUI = new LoginUI();


}
}
});
}

public static void main(String[] args) {
launch(args);
}
}

这是我的登录界面:

package myworkouts.presentation;

import javafx.geometry.Insets;

import javafx.application.Application;
import static javafx.application.Application.launch;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.text.Text;
import javafx.stage.Stage;


public class LoginUI extends Application {

@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Forged-Fit Login");


GridPane grid = new GridPane();
grid.setAlignment(Pos.CENTER);
grid.setHgap(10);
grid.setVgap(10);
grid.setPadding(new Insets(25, 25, 25, 25));

Button btn = new Button("Login");
Button resetbtn = new Button("Cancel");

HBox hbBtn = new HBox(10);
HBox resetBtn = new HBox(10);

hbBtn.setAlignment(Pos.BOTTOM_RIGHT);
resetBtn.setAlignment(Pos.BOTTOM_CENTER);

hbBtn.getChildren().add(btn);
hbBtn.getChildren().add(resetbtn);

grid.add(hbBtn, 1, 4);
grid.add(resetBtn, 0, 3); // might need to adjust

final Text actiontarget = new Text();
grid.add(actiontarget, 1, 6);

Text scenetitle = new Text("Login");

scenetitle.getStyleClass().add("header");

grid.add(scenetitle, 0, 0, 2, 1);

Label userName = new Label("Username : ");
grid.add(userName, 0, 1);

TextField userTextField = new TextField();
grid.add(userTextField, 1, 1);

Label pw = new Label("Password : ");
grid.add(pw, 0, 2);

PasswordField pwBox = new PasswordField();
grid.add(pwBox, 1, 2);


Scene scene = new Scene(grid, 400, 200);
primaryStage.setScene(scene);

scene.getStylesheets().add
(LoginUI.class.getResource("Login.css").toExternalForm());
primaryStage.show();
}

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}

我可以让创建帐户 UI 隐藏在节点中,但似乎无法弄清楚如何显示登录 UI。提前致谢!仍在努力学习 JavaFX

最佳答案

尝试在创建 LoginUI 对象后添加 loginUI.start(new Stage());

关于JavaFX 启动第二个 GUI,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48837842/

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