Die Anleitung zu JavaFX DatePicker
View more Tutorials:
// Setting a particular date value in the class constructor checkInDatePicker = new DatePicker(LocalDate.of(1998, 10, 8)); // Setting a particular date value by using the setValue method checkInDatePicker.setValue(LocalDate.of(1998, 10, 8)); // Setting the minimum date available in the calendar checkInDatePicker.setValue(LocalDate.MIN); // Setting the maximum date available in the calendar checkInDatePicker.setValue(LocalDate.MAX); // Setting the current date checkInDatePicker.setValue(LocalDate.now());
setShowWeekNumber
DatePickerDemo.java
package org.o7planning.javafx.datapicker;
import java.time.LocalDate;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.DatePicker;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;
public class DatePickerDemo extends Application {
@Override
public void start(Stage stage) {
DatePicker datePicker = new DatePicker();
datePicker.setValue(LocalDate.of(2016, 7, 25));
datePicker.setShowWeekNumbers(true);
FlowPane root = new FlowPane();
root.getChildren().add(datePicker);
root.setPadding(new Insets(10));
stage.setTitle("DatePicker (o7planning.org)");
Scene scene = new Scene(root, 300, 200);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
Beispiel
Nach dem Default wird das Datum in Date Field nach dem Format der Lokal (local locale) und ISO-standard angezeigt. Das bedeutet, dass das Datum wird nach der Konfiguration deines PC gezeigt, das mit der Applikation geläuft
Auf der code Java können Sie die Anzeige durch Methode bạn có thể tùy biến một cách hiển thị thông qua phương thức setConverter(..) anpassen und wenn Sie die Default-status zurückkehren möchten, benutzen Sie Methode setConverter(null).
das folgende Beispiel stellt die Anzeige auf "Date Field" nach dem Format "dd-MM-yyyy":
DatePickerConverterDemo.java
package org.o7planning.javafx.datapicker;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.DatePicker;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;
import javafx.util.StringConverter;
public class DatePickerConverterDemo extends Application {
@Override
public void start(Stage stage) {
DatePicker datePicker = new DatePicker();
datePicker.setValue(LocalDate.of(2016, 7, 25));
datePicker.setShowWeekNumbers(true);
// Converter
StringConverter<LocalDate> converter = new StringConverter<LocalDate>() {
DateTimeFormatter dateFormatter =
DateTimeFormatter.ofPattern("dd-MM-yyyy");
@Override
public String toString(LocalDate date) {
if (date != null) {
return dateFormatter.format(date);
} else {
return "";
}
}
@Override
public LocalDate fromString(String string) {
if (string != null && !string.isEmpty()) {
return LocalDate.parse(string, dateFormatter);
} else {
return null;
}
}
};
datePicker.setConverter(converter);
datePicker.setPromptText("dd-MM-yyyy");
FlowPane root = new FlowPane();
root.getChildren().add(datePicker);
root.setPadding(new Insets(10));
stage.setTitle("DatePicker (o7planning.org)");
Scene scene = new Scene(root, 300, 200);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
Bei Default können Sie alle Tagen in DatePicker interaktiv sein. Aber Sie können DatePicker anpassen, um einige Tage mittels Methode setDayCellFactory zu deaktivieren.
Das folgende Beispiel mit der Deaktivierung aller Montags, Dienstags und Mittwochs eines Monats
DatePickerConverterDemo.java
package org.o7planning.javafx.datapicker;
import java.time.DayOfWeek;
import java.time.LocalDate;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.DateCell;
import javafx.scene.control.DatePicker;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;
import javafx.util.Callback;
public class DatePickerConverterDemo extends Application {
// Factory to create Cell of DatePicker
private Callback<DatePicker, DateCell> getDayCellFactory() {
final Callback<DatePicker, DateCell> dayCellFactory = new Callback<DatePicker, DateCell>() {
@Override
public DateCell call(final DatePicker datePicker) {
return new DateCell() {
@Override
public void updateItem(LocalDate item, boolean empty) {
super.updateItem(item, empty);
// Disable Monday, Tueday, Wednesday.
if (item.getDayOfWeek() == DayOfWeek.MONDAY //
|| item.getDayOfWeek() == DayOfWeek.TUESDAY //
|| item.getDayOfWeek() == DayOfWeek.WEDNESDAY) {
setDisable(true);
setStyle("-fx-background-color: #ffc0cb;");
}
}
};
}
};
return dayCellFactory;
}
@Override
public void start(Stage stage) {
DatePicker datePicker = new DatePicker();
datePicker.setValue(LocalDate.of(2016, 7, 25));
datePicker.setShowWeekNumbers(true);
// Factory to create Cell of DatePicker
Callback<DatePicker, DateCell> dayCellFactory= this.getDayCellFactory();
datePicker.setDayCellFactory(dayCellFactory);
FlowPane root = new FlowPane();
root.getChildren().add(datePicker);
root.setPadding(new Insets(10));
stage.setTitle("DatePicker (o7planning.org)");
Scene scene = new Scene(root, 300, 200);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
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