在两个 JavaFX 控制器之间传递参数 [英] Passing parameters between two JavaFX controllers
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问题描述
我想单击一列并将单元格索引发送到新阶段.但我无法将我的参数 (int clickIndex) 传递给另一个控制器 EditClientController.我已经尝试了所有方法，但仍然无法正常工作.
I want to click a column and send the cell index to a new stage. But I can't pass my parameter (int clickIndex) to another controller EditClientController. I've tried everything, but it still does not work.
主控制器
package controller;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.scene.input.MouseEvent;
import javafx.scene.text.Text;
import javafx.stage.Stage;
import javafx.util.Callback;
import model.Table;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.net.URL;
import java.util.ResourceBundle;
public class MainController implements Initializable {
@FXML
TableView<Table> tableID;
@FXML
TableColumn iLp;
@FXML
TableColumn iCity;
@FXML
TableColumn iDeviceName;
@FXML
TableColumn iSerialNumber;
@FXML
TableColumn iCompanyName;
@FXML
TableColumn iContact;
@FXML
TableColumn iSellDate;
@FXML
TableColumn iWarranty;
@FXML
TableColumn iNextReview;
@FXML
TableColumn iWarrantyTrue;
@FXML
Button addButton;
@FXML
ComboBox warrantyLength;
@FXML
ComboBox nextReview;
@FXML
ComboBox warrantyTrue;
//Define variables
private int iNumber= 1;
public int clickIndex;
//Create table data
ObservableList<Table> data = FXCollections.observableArrayList();
//Combo box
final ObservableList warranty = FXCollections.observableArrayList("---",12,24,36);
final ObservableList review = FXCollections.observableArrayList("---","tydzień","miesiąc","2 miesiące", "6 miesięcy");
final ObservableList warrantyTF = FXCollections.observableArrayList("---","tak","nie");
Callback<TableColumn, TableCell> cellFactory2 =
new Callback<TableColumn, TableCell>() {
public TableCell call(TableColumn p) {
final TableCell cell = new TableCell<Table, Integer>() {
@Override
public void updateItem(Integer item, boolean empty) {
super.updateItem(item, empty);
setText(empty ? null : getString());
setGraphic(null);
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
};
cell.addEventFilter(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
if (event.getClickCount() > 1) {
clickIndex=cell.getIndex();
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("editClient.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
Stage stage = new Stage();
stage.setTitle("Edytuj klienta");
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
}
});
return cell;
}
};
Callback<TableColumn, TableCell> cellFactory =
new Callback<TableColumn, TableCell>() {
public TableCell call(TableColumn p) {
final TableCell cell = new TableCell<Table, String>() {
private Text text;
@Override
public void updateItem(String item, boolean empty) {
super.updateItem(item, empty);
text = new Text(item);
text.setWrappingWidth(100);
setGraphic(text);
}
private String getString() {
return getItem() == null ? "" : getItem().toString();
}
};
cell.addEventFilter(MouseEvent.MOUSE_CLICKED, new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
if (event.getClickCount() > 1) {
clickIndex = cell.getIndex();
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("editClient.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
Stage stage = new Stage();
stage.setTitle("Edytuj klienta");
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
}
});
return cell;
}
};
public void setClickedIndex(int click){
this.clickIndex=click;
}
public int getClickIndex(){
return clickIndex;
}
//Plik
public void openFile() {
FileReader plik = null;
int tab0=1;
int tab7=0;
String tab9=null;
try {
plik = new FileReader("dane.txt");
} catch (FileNotFoundException e) {
e.printStackTrace();
}
BufferedReader bfr = new BufferedReader(plik);
String linia = null;
try {
while ((linia = bfr.readLine()) != null) {
String[] tab = linia.split(";");
tab7=Integer.parseInt(tab[7]);
if(tab.length==10) {
if(tab[9].contains(tab[8])){
tab9="Tak";
}else{
tab9="Nie";
}
}
Table tablica = new Table(tab0++, tab[1], tab[2], tab[3], tab[4], tab[5], tab[6], tab7, tab[8], tab9);
data.add(tablica);
}
} catch (Exception e) {
System.out.println("BŁĄD ODCZYTU Z PLIKU!");
System.exit(2);
}
try {
plik.close();
} catch (IOException e) {
System.out.println("BŁĄD PRZY ZAMYKANIU PLIKU!");
System.exit(3);
}
}
public void setData(ObservableList<Table> newData){
data=newData;
}
public ObservableList<Table> getData(){
return data;
}
public void pressButton(ActionEvent event) throws Exception {
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("addClient.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
Stage stage = new Stage();
stage.setTitle("Dodaj klienta");
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
@Override
public void initialize(URL location, ResourceBundle resources) {
openFile();
iLp.setCellValueFactory(new PropertyValueFactory<Table, Integer>("rLp"));
iCity.setCellValueFactory(new PropertyValueFactory<Table, String>("rCity"));
iDeviceName.setCellValueFactory(new PropertyValueFactory<Table, String>("rDeviceName"));
iSerialNumber.setCellValueFactory(new PropertyValueFactory<Table, String>("rSerialNumber"));
iCompanyName.setCellValueFactory(new PropertyValueFactory<Table, String>("rCompanyName"));
iContact.setCellValueFactory(new PropertyValueFactory<Table, String>("rContact"));
iSellDate.setCellValueFactory(new PropertyValueFactory<Table, String>("rSellDate"));
iWarranty.setCellValueFactory(new PropertyValueFactory<Table, Integer>("rWarranty"));
iNextReview.setCellValueFactory(new PropertyValueFactory<Table, String>("rNextReview"));
iWarrantyTrue.setCellValueFactory(new PropertyValueFactory<Table, String>("rWarrantyTrue"));
iLp.setCellFactory(cellFactory2);
iCity.setCellFactory(cellFactory);
iDeviceName.setCellFactory(cellFactory);
iSerialNumber.setCellFactory(cellFactory);
iCompanyName.setCellFactory(cellFactory);
iContact.setCellFactory(cellFactory);
iSellDate.setCellFactory(cellFactory);
iWarranty.setCellFactory(cellFactory2);
iNextReview.setCellFactory(cellFactory);
iWarrantyTrue.setCellFactory(cellFactory);
tableID.setItems(data);
//comboboxy
warrantyLength.setItems(warranty);
warrantyLength.getSelectionModel().select(0);
nextReview.setItems(review);
nextReview.getSelectionModel().select(0);
warrantyTrue.setItems(warrantyTF);
warrantyTrue.getSelectionModel().select(0);
}
}
EditClientController
package controller;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.ComboBox;
import javafx.scene.control.TextField;
import java.net.URL;
import java.util.ResourceBundle;
/**
* Created by Krzysztof on 2015-01-14.
*/
public class EditClientController implements Initializable {
@FXML
ComboBox warrantyLength;
@FXML
TextField city;
public int index;
//Combo box dla okresu gwarancyjnego
final ObservableList warranty = FXCollections.observableArrayList("---", 12, 24, 36);
public void setIndex(int index){
this.index=index;
}
public int getIndex(){
return index;
}
@Override
public void initialize(URL location, ResourceBundle resources) {
// city.setText(tablica.get(index).getRCity());
warrantyLength.setItems(warranty);
warrantyLength.getSelectionModel().select(0);
}
}
推荐答案
如果你想在 FXML 文件中指定控制器(所以你不能使用 Deepak 的答案)和你想访问initialize() 方法中的索引(因此您不能使用 José 的答案)，您可以使用控制器工厂:
If you want to specify the controller in the FXML file (so you can't use Deepak's answer) and you want to access the index in the initialize() method (so you can't use José's answer), you can use a controller factory:
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("editClient.fxml"));
fxmlLoader.setControllerFactory(new Callback<Class<?>, Object>() {
@Override
public Object call(Class<?> controllerClass) {
if (controllerClass == EditClientController.class) {
EditClientController controller = new EditClientController()
controller.setIndex(clickIndex);
return controller ;
} else {
try {
return controllerClass.newInstance();
} catch (Exception exc) {
throw new RuntimeException(exc); // just bail
}
}
}
});
Parent root1 = fxmlLoader.load();
这篇关于在两个 JavaFX 控制器之间传递参数的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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