RootLayoutControl.java
public class RootLayoutController {
private MainApp mainApp;
public void setMainApp(MainApp mainApp) {
// TODO Auto-generated method stub
this.mainApp = mainApp;
}
@FXML
private void handleNew(){
}
@FXML
private void handleOpen(){
FileChooser fileChooser = new FileChooser();
//Set extension filter
ExtensionFilter extFilter = new FileChooser.ExtensionFilter("Image Files", "*.png","*.jpg", "*.jpeg");
fileChooser.getExtensionFilters().add(extFilter);
// Show save file dialog
File file = fileChooser.showOpenDialog(mainApp.getPrimaryStage());
if(file != null){
//CALL createImageView(file);
}
}
MainApp.java
public class MainApp extends Application {
private Stage primaryStage;
private BorderPane rootLayout;
@Override
public void start(Stage primaryStage) {
this.primaryStage = primaryStage;
this.primaryStage.setTitle("Photo Album");
initRootLayout();
showImageView();
}
private void showImageView() {
// TODO Auto-generated method stub
try {
// Load person overview.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(MainApp.class.getResource("ImageView.fxml"));
AnchorPane imageOverview = (AnchorPane) loader.load();
ImageViewController controller = loader.getController();
controller.setMainApp(this);
// Set person overview into the center of root layout.
rootLayout.setCenter(imageOverview);
} catch (IOException e) {
e.printStackTrace();
}
}
public Stage getPrimaryStage() {
return primaryStage;
}
public static void main(String[] args) {
launch(args);
}
public void ShowView(File file) {
// TODO Auto-generated method stub
}
ImageViewController.java
public class ImageViewController {
private MainApp mainApp;
@FXML
private ImageView imageView;
@FXML
private TilePane tile;
public void setMainApp(MainApp mainApp) {
// TODO Auto-generated method stub
this.mainApp = mainApp;
}
private ImageView createImageView(File file){
return imageView;
}
创建图库,如果我调用该方法,
RootLayoutController中的handleOpen()
它会调用方法,
ImageViewController中的createImageView()
要将变量文件传递给它,有关如何进行的任何建议?
答案 0 :(得分:2)
首先,createImageView()方法需要公开。
public ImageView createImageView(File file){
return imageView;
}
在RootLayoutController中,您需要创建一个方法来获取ImageViewController的实例
private ImageViewController imageView;
public void setImageView(ImageViewController imageView) {
this.imageView = imageView;
}
然后你需要获取控制器并从RootLayoutController调用setImageView()方法来传递它的实例
FXMLLoader loader = new FXMLLoader(getClass().getResource("RootLayoutController.fxml"));
RootLayoutController controller = loader.getController();
controller.setImageView(imageView);