UI

image.png
image.png

基本应用

  • 选择时间
  • 设置时间
  • 获取已选择的时间 ```java import java.time.LocalDate; import java.util.Locale; import javafx.application.Application; import javafx.event.EventHandler; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.control.DatePicker; import javafx.scene.input.MouseEvent; import javafx.scene.layout.VBox; import javafx.stage.Stage; import javafx.util.StringConverter;

public class Test extends Application {

  1. private final DatePicker mDatePicker = new DatePicker();
  3. public static void main(String[] args) {
  4.     Locale.setDefault(Locale.US);
  5.     launch(args);
  6. }
  8. @Override
  9. public void start(Stage stage) {
  10.     stage.setTitle("DatePickerSample ");
  11.     initUI(stage);
  12.     stage.show();
  13. }
  15. private void initUI(Stage stage) {
  17.     final StringConverter<LocalDate> converter = new StringConverter<LocalDate>() {
  18.         @Override
  19.         public String toString(LocalDate date) {
  20.             if (date != null) {
  21.                 return date.toString();
  22.             } else {
  23.                 return "";
  24.             }
  25.         }
  27.         @Override
  28.         public LocalDate fromString(String string) {
  29.             if (string != null && !string.isEmpty()) {
  30.                 return LocalDate.parse(string);
  31.             } else {
  32.                 return null;
  33.             }
  34.         }
  35.     };
  37.     mDatePicker.setConverter(converter);
  38.     mDatePicker.setValue(LocalDate.now());//设置时间选择器的时间为当前时间
  39.     mDatePicker.requestFocus();
  41.     Button getTimeBtn = new Button("获取已选择的时间");
  42.     getTimeBtn.setOnMouseClicked(new EventHandler<MouseEvent>() {
  43.         @Override
  44.         public void handle(MouseEvent event) {
  45.             System.out.println(mDatePicker.getValue());
  46.         }
  47.     });
  49.     VBox vbox = new VBox(20);
  50.     vbox.setStyle("-fx-padding: 10;");
  51.     vbox.getChildren().addAll(mDatePicker,getTimeBtn);
  53.     Scene scene = new Scene(vbox, 300, 200);
  54.     stage.setScene(scene);
  55. }

} ```

其他案例

https://docs.oracle.com/javase/8/javafx/user-interface-tutorial/date-picker.htm#:~:text=JavaFX%20DatePicker%20is%20a%20control%20that%20enables%20selection,chooser.%20Working%20with%20Time%20Data%20and%20Date%20Formats