Question

我之前的问题不太清楚，我只是改写了一下。这是我想要实现的目标。

我要定义文件夹的路径；
在FROM-> TextField上，客户将输入文件夹中已经存在的图像名称；
单击一个按钮，文件名将添加到路径中，并将其填充到imageView中，而无需手动浏览到该文件夹。

那么，我该怎么做？谢谢

Answer 1

ImageViewerController .java

public class ImageViewerController implements Initializable {

private Label label;
@FXML
private ImageView imageView;
@FXML
private TextField txt_Path;

private Image image;
String name;


@Override
public void initialize(URL url, ResourceBundle rb) {

}    

@FXML
private void btn_Valide(ActionEvent event) {
    loadImage();
}

private void loadImage(){
    name = txt_Path.getText();
        File file = new File("src/images/"+name);
        Image image = new Image(file.toURI().toString());
         imageView.setImage(image); 
}

}

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.image.*?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="521.0" prefWidth="660.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="imageviewer.ImageViewerController">
   <center>
      <Pane prefHeight="200.0" prefWidth="200.0" BorderPane.alignment="CENTER">
         <children>
            <Pane layoutX="24.0" layoutY="248.0" prefHeight="248.0" prefWidth="306.0" style="-fx-background-color: #EBDEF0;">
               <children>
                  <ImageView fx:id="imageView" fitHeight="237.0" fitWidth="297.0" layoutX="7.0" layoutY="8.0" pickOnBounds="true" preserveRatio="true" />
               </children>
            </Pane>
            <TextField fx:id="txt_Path" layoutX="24.0" layoutY="28.0" prefHeight="25.0" prefWidth="510.0" text="avatar.jpg" />
            <Button layoutX="549.0" layoutY="28.0" mnemonicParsing="false" onAction="#btn_Valide" prefHeight="25.0" prefWidth="77.0" text="Valide" />
         </children>
      </Pane>
   </center>
</BorderPane>

Javafx指向特定文件夹的路径，然后选择在文本字段上输入的文件

1 个答案: