Question

在此示例中，WebView可能会加载内容，但不会显示它。但是，如果内容是自动播放youtube视频，则会发出声音。我认为问题与初始化有关。

Controller_mini.java：

package sample;

//some imports here

public class Controller_mini implements Initializable {

    @FXML
    WebView film_haqqinda_webview = new WebView();

    public void pramoy_webview(ActionEvent event){
        try {
            Parent root2 = FXMLLoader.load(getClass().getResource("Film_haqqinda.fxml"));
            Scene scene = new Scene(root2);
            Stage window = (Stage) ((Node) event.getSource()).getScene().getWindow();
            window.setScene(scene);
            window.show();
            window.centerOnScreen();
            film_haqqinda_webview.getEngine().load("https://www.youtube.com/watch?v=Q-h8g9TLsks");
        } catch (Exception e){}
    }

    public void filmlerin_siy_goster(){
        String SQL = "select * from filmler;";
        try {
            ResultSet resultSet = Objects.requireNonNull(sample.JDBCConnect.ConnectDB()).createStatement().executeQuery(SQL);
            ObservableList<String> films = FXCollections.observableArrayList();
            while(resultSet.next()){
                films.add(resultSet.getString(1));
            }
        } catch (Exception e) {
            System.out.println("filmlerin siyahisini tesvir etmek alinmadi");
        }
    }

    public void describe_kassirler() {
    }

    @Override
    public void initialize(URL location, ResourceBundle resources) {
        describe_kassirler();
        filmlerin_siy_goster();
    }
}

Log_in_screen.fxml中的按钮：

<Button layoutX="210.0" layoutY="202.0" mnemonicParsing="false" onAction="#pramoy_webview" text="Log in">
               <font>
                  <Font size="18.0" />
               </font>
            </Button>

Film_haqqinda.fxml：

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.layout.Pane?>
<?import javafx.scene.web.WebView?>

<Pane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="500.0" prefWidth="800.0" xmlns="http://javafx.com/javafx/8.0.181" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller_mini">
   <children>
      <WebView fx:id="film_haqqinda_webview" layoutX="69.0" layoutY="56.0" prefHeight="325.0" prefWidth="621.0" />
   </children>
</Pane>

为什么JavaFX WebView发出声音而不提供图像？

0 个答案: