我希望在将电话号码输入TextField时实时格式化电话号码。目标是添加一个"；分离器"；(空格、破折号、点…(根据国家组成电话号码的不同数字之间。默认情况下，法国：06 23 65 14 85但也适用于其他国家作为国际格式的法语：+33 6 23 65 14 85或德国国际格式：+xx xxx xxx xx xxx
为此，我有一个监听器，当在TextField中添加一个新数字时，它会永久显示。然后该程序负责检测正在输入的电话号码的格式，并且根据该格式，该程序使用"；格式"；我自己创建来修改字符串的格式。
问题是，在重新格式化字符串时，用户的光标一直在移动。如果用户删除或选择一个区域，然后删除它……每次，光标都会移动到字符串的开头或结尾，这对编写来说非常麻烦。
您是否有一个解决方案可以实时更改字符串的格式，同时确保光标位于正确的位置？目前我找到的唯一选择是lib，但这似乎很难维持，所以我宁愿自己做。否则，我必须等待图形组件上的取消聚焦，然后更改格式，但这不是我想要的。
我在下面给你提供了我的代码，对不起，如果其中有一点法语，我有时会写一些。
import java.util.function.UnaryOperator;
import javafx.application.Platform;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.control.TextField;
import javafx.scene.control.TextFormatter;
import javafx.scene.control.TextFormatter.Change;
import javafx.util.converter.IntegerStringConverter;
public class FormPhoneNumber {
private StringProperty textPropertyFromComponent = new SimpleStringProperty();
private TextField tf;
private String separator;
private String last = "";
private int lastCaretPosition = 0;
private ChangeListener<String> updateText;
public FormPhoneNumber(TextField textField, String separator) {
this.textPropertyFromComponent = textField.textProperty();
this.tf = textField;
//On unfocus
// tf.focusedProperty().addListener((ObservableValue<? extends Boolean> ov, Boolean t, Boolean t1) -> {
// if (t1 == false) {
// System.out.println("i");
// }
// });
if (separator != null && !separator.isEmpty()) {
this.separator = separator;
} else {
separator = " ";
}
checkNumberFormat();
}
private void checkNumberFormat() {
//Listener on write in the textfield
updateText = (ObservableValue<? extends String> observable, String oldValue, String newValue) -> {
if (newValue == null || newValue.isEmpty()) {
return;
}
//My customs formatters
if (newValue.startsWith("+33")) {
// System.out.println("FRANCE");
String resultat = getPhoneNumberFormatted(newValue, "###-#-##-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 17);
} else if (newValue.startsWith("+49")) {
// System.out.println("ALLEMAGNE");
String resultat = getPhoneNumberFormatted(newValue, "###-###-###-##-###");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 18);
} else if (newValue.startsWith("+34")) {
// System.out.println("ESPAGNE");
String resultat = getPhoneNumberFormatted(newValue, "###-###-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.replaceAll(separator, "").startsWith("+3245") || newValue.replaceAll(separator, "").startsWith("+3249")) {
// System.out.println("BELGIQUE GSM");
String resultat = getPhoneNumberFormatted(newValue, "###-###-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.replaceAll(separator, "").startsWith("+322") || newValue.replaceAll(separator, "").startsWith("+323") || newValue.replaceAll(separator, "").startsWith("+329")) {
// System.out.println("BELGIQUE AUTRE 1");
String resultat = getPhoneNumberFormatted(newValue, "###-#-###-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 15);
} else if (newValue.startsWith("+32")) {
// System.out.println("BELGIQUE");
String resultat = getPhoneNumberFormatted(newValue, "###-##-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 15);
} else if (newValue.replaceAll(separator, "").startsWith("+3526")) {
// System.out.println("LUXEMBOURG 1");
String resultat = getPhoneNumberFormatted(newValue, "####-###-###-###");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.startsWith("+352")) {
// System.out.println("LUXEMBOURG AUTRE");
String resultat = getPhoneNumberFormatted(newValue, "####-##-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.startsWith("+377")) {
// System.out.println("MONACO");
String resultat = getPhoneNumberFormatted(newValue, "####-##-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.startsWith("+41")) {
// System.out.println("SUISSE");
String resultat = getPhoneNumberFormatted(newValue, "###-##-###-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.replaceAll(separator, "").startsWith("+390")) {
// System.out.println("ITALIE FIXE");
String resultat = getPhoneNumberFormatted(newValue, "###-##-####-####");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.replaceAll(separator, "").startsWith("+393")) {
// System.out.println("ITALIE PORTABLE");
String resultat = getPhoneNumberFormatted(newValue, "###-###-###-####");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.startsWith("+39")) {
// System.out.println("ITALIE AUTRE");
String resultat = getPhoneNumberFormatted(newValue, "###-##-####-####");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.startsWith("+376")) {
// System.out.println("ANDORRE");
String resultat = getPhoneNumberFormatted(newValue, "####-###-###-###");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 16);
} else if (newValue.startsWith("+590")) {
// System.out.println("GUADELOUPE");
String resultat = getPhoneNumberFormatted(newValue, "####-###-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 17);
} else if (newValue.startsWith("+596")) {
// System.out.println("MARTINIQUE");
String resultat = getPhoneNumberFormatted(newValue, "####-###-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 17);
} else if (newValue.startsWith("+594")) {
// System.out.println("GUYANE");
String resultat = getPhoneNumberFormatted(newValue, "####-###-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 17);
} else if (newValue.startsWith("+262")) {
// System.out.println("REUNION ET MAYOTTE");
String resultat = getPhoneNumberFormatted(newValue, "####-###-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 17);
} else if (newValue.startsWith("+687")) {
// System.out.println("NOUVELLE-CALEDONIE");
String resultat = getPhoneNumberFormatted(newValue, "####-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 13);
} else if (newValue.startsWith("+")) {
// System.out.println("AUTRE - PAYS NON REFERENCE");
String resultat = getPhoneNumberFormatted(newValue, "######################");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 22);
} else if (newValue.length() >= 3) {
if (Character.isDigit(newValue.charAt(0))) {
// System.out.println("France Nationnal");
String resultat = getPhoneNumberFormatted(newValue, "##-##-##-##-##");
int caretPosition = tf.getCaretPosition();
setResult(resultat, caretPosition, oldValue, newValue, 14);
}
}
};
textPropertyFromComponent.addListener(updateText);
}
//My attempt to put the cursor in the right place, but VERY scary code
private void setResult(String resultat, int caretPosition, String oldValue, String newValue, int maxLength) {
Platform.runLater(() -> {
if (resultat.length() <= maxLength && newValue != null && oldValue != null) {
textPropertyFromComponent.set(resultat);
// int diffAddLetter = newValue.length() - oldValue.length();
// int diffRemLetter = oldValue.length() - newValue.length();
// System.out.println("oldValue = " + oldValue);
// System.out.println("newValue = " + newValue);
// System.out.println("resultat = " + resultat);
// System.out.println("test = " + last);
// if (newValue.length() == maxLength) {
// if (!"".equals(last)) {
// tf.positionCaret(caretPosition + 1);
// }
// } else if (diffAddLetter > 0) {
// System.out.println("diffAddLetter = " + diffAddLetter);
// System.out.println("lastCaretPosition = " + lastCaretPosition);
// System.out.println("caretPosition = " + caretPosition);
// if ("".equals(last)) {
// if (StringUtils.countMatches(oldValue, separator) < StringUtils.countMatches(newValue, separator)) {
// tf.positionCaret(caretPosition + 1);
// } else {
// tf.positionCaret(caretPosition);
// }
// System.out.println("a1");
// } else {
// tf.positionCaret(caretPosition + diffAddLetter);
// System.out.println("a2");
// }
// if (lastCaretPosition == caretPosition) {
// last = "";
// } else {
// last = oldValue;
// }
// } else if (diffRemLetter > 0) {
// System.out.println("lastCaretPosition = " + lastCaretPosition);
// System.out.println("caretPosition = " + caretPosition);
// System.out.println("diffRemLetter = " + diffRemLetter);
// if ((lastCaretPosition == caretPosition || lastCaretPosition == (caretPosition - diffRemLetter)) && diffRemLetter > 1) {
// tf.positionCaret(caretPosition - diffRemLetter);
// System.out.println("r1");
// } else {
// System.out.println("caretPosition + diffRemLetter = " + (caretPosition - diffRemLetter));
//// System.out.println("(newValue.substring(0, caretPosition) = " + (newValue.substring(0, caretPosition)));
// System.out.println("oldValue.substring(0, caretPosition) = " + oldValue.substring(0, caretPosition));
//// System.out.println("newValue.substring(caretPosition) = " + newValue.substring(caretPosition +1));
// System.out.println("caretPosition = " + caretPosition);
// if (newValue.length() > caretPosition) {
// if (newValue.substring(0, caretPosition).equals(oldValue.substring(0, caretPosition)) && oldValue.endsWith(newValue.substring(caretPosition + 1)) && !"".equals(newValue.substring(caretPosition + 1)) && !String.valueOf(newValue.charAt(caretPosition - 1)).equals(separator)) {
// tf.positionCaret(caretPosition);
// System.out.println("r2");
// } else if (Character.isDigit(newValue.charAt(caretPosition - 1)) && Character.isDigit(newValue.charAt(caretPosition)) && diffRemLetter == 1) {
// tf.positionCaret(caretPosition);
// System.out.println("r5");
// } else {
// tf.positionCaret(caretPosition + 1);
// System.out.println("r3");
// }
// } else {
// System.out.println("r4");
// tf.positionCaret(lastCaretPosition);
// }
// last = oldValue;
// }
// } else if (String.valueOf(resultat.charAt(caretPosition - 1)).equals(separator) && last.length() < resultat.length()) {
// tf.positionCaret(caretPosition + 1);
// System.out.println("s");
// } else {
// tf.positionCaret(caretPosition);
// System.out.println("o");
// }
// if (resultat.length() >= caretPosition) {
// if (oldValue.replaceAll(separator, "").equals(newValue.replaceAll(separator, "")) && String.valueOf(resultat.charAt(caretPosition)).equals(separator)) {
// tf.positionCaret(caretPosition);
// System.out.println("c");
// }
// }
// lastCaretPosition = caretPosition;
} else {
textPropertyFromComponent.set(oldValue);
}
});
textPropertyFromComponent.addListener(updateText);
}
//Method to format the phone number
private String getPhoneNumberFormatted(String phoneNumber, String format) {
textPropertyFromComponent.removeListener(updateText);
String vretour = "";
if (phoneNumber.length() <= format.length()) {
phoneNumber = phoneNumber.replaceAll("[^0-9+]", "");
int index = findXDotPosition(format, phoneNumber.length());
format = format.substring(0, index + 1);
int indexCharArray = 0;
for (char unChar : format.toCharArray()) {
if ("#".charAt(0) == unChar) {
vretour = vretour + phoneNumber.toCharArray()[indexCharArray];
indexCharArray++;
}
if ("-".charAt(0) == unChar) {
vretour = vretour + separator;
}
}
} else {
vretour = phoneNumber;
}
return vretour;
}
//Method to find a separator
private static int findXDotPosition(String s, int separatorToFind) {
int result = -1;
char[] ca = s.toCharArray();
for (int i = 0; i < ca.length; ++i) {
if (ca[i] == '#') {
--separatorToFind;
}
if (separatorToFind == 0) {
return i;
}
}
return result;
}
}
我还为您提供了一些应用程序实际工作的屏幕截图。
https://i.goopics.net/Jl8aR.pnghttps://i.goopics.net/RVvdZ.png
希望你能给我一个解决方案，提前感谢！
TextFormatter无疑是一条不错的选择。您需要构建的是TextFormatter的filter组件。基本上，您可以将其视为一个击键处理器(它也处理鼠标操作(，所有底层的东西都已经为您处理过了。将TextFormatter.Change对象传递给您，您可以看到该更改将如何影响字段中的值，然后对其进行修改、抑制或让其通过。
因此，所有的格式化都会立即发生，就在您键入的TextField中。
我制作了一个用来处理北美风格的电话号码的，因为它比欧洲风格的更有意思，因为它有括号和破折号。但你可以适应它。
我采用的方法是从字符串中去掉所有格式化字符，然后每次进行更改时从头开始重新格式化。这似乎比试图逐个地摆弄它更容易。唯一棘手的部分是打出<BackSpace>在一个"-"或"(&"；，我假设你想删除特殊字符前面的数字。将插入符号移到特殊字符的左边可能更有意义：
public class PhoneNumberFilter implements UnaryOperator<TextFormatter.Change> {
@Override
public TextFormatter.Change apply(TextFormatter.Change change) {
if (change.isContentChange()) {
handleBackspaceOverSpecialCharacter(change);
if (change.getText().matches("[0-9]*")) {
int originalNewTextLength = change.getControlNewText().length();
change.setText(formatNumber(change.getControlNewText()));
change.setRange(0, change.getControlText().length());
int caretOffset = change.getControlNewText().length() - originalNewTextLength;
change.setCaretPosition(change.getCaretPosition() + caretOffset);
change.setAnchor(change.getAnchor() + caretOffset);
return change;
} else {
return null;
}
}
return change;
}
private void handleBackspaceOverSpecialCharacter(TextFormatter.Change change) {
if (change.isDeleted() && (change.getSelection().getLength() == 0)) {
if (!Character.isDigit(change.getControlText().charAt(change.getRangeStart()))) {
if (change.getRangeStart() > 0) {
change.setRange(change.getRangeStart() - 1, change.getRangeEnd() - 1);
}
}
}
}
private String formatNumber(String numbers) {
numbers = numbers.replaceAll("[^\d]", "");
numbers = numbers.substring(0, Math.min(10, numbers.length()));
if (numbers.length() == 0) {
return "";
}
if (numbers.length() < 4) {
return "(" + numbers;
}
if (numbers.length() < 7) {
return numbers.replaceFirst("(\d{3})(\d+)", "($1)$2");
}
return numbers.replaceFirst("(\d{3})(\d{3})(\d+)", "($1)$2-$3");
}
}
这里有一个小的测试应用程序。您可以看到转换器只是"；开箱即用"；默认转换器，因为它只是一个主要由数字组成的字符串：
public class PhoneNumberTest extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
TextField textField = new TextField();
TextFormatter<String> textFormatter = new TextFormatter(new DefaultStringConverter(), "", new PhoneNumberFilter());
textField.setTextFormatter(textFormatter);
Scene scene = new Scene(new VBox(textField), 300, 100);
primaryStage.setScene(scene);
primaryStage.show();
}
}
非常感谢您的回答DaveB！它运行得非常好，我为您提供了最终代码：
package PhoneNumberTest;
import java.util.function.UnaryOperator;
import javafx.beans.value.ObservableValue;
import javafx.scene.control.TextField;
import javafx.scene.control.TextFormatter;
import javafx.util.converter.DefaultStringConverter;
import org.apache.commons.lang3.StringUtils;
public class PhoneNumberFilter implements UnaryOperator<TextFormatter.Change> {
private String separator = " ";
private int length = 0;
private TextField tf;
private final String formatForFrance = "###-#-##-##-##-##";
private final String formatForAllemagne = "###-###-###-##-###";
private final String formatForEspagne = "###-###-##-##-##";
private final String formatForBelgiqueGSM = "###-###-##-##-##";
private final String formatForBelgiqueAutre = "###-#-###-##-##";
private final String formatForBelgique = "###-##-##-##-##";
private final String formatForLuxembourg = "####-###-###-###";
private final String formatForLuxembourgAutre = "####-##-##-##-##";
private final String formatForMonaco = "####-##-##-##-##";
private final String formatForSuisse = "###-##-###-##-##";
private final String formatForItalieFixe = "###-##-####-####";
private final String formatForItaliePort = "###-###-###-####";
private final String formatForItalieAutre = "###-##-####-####";
private final String formatForAndorre = "####-###-###-###";
private final String formatForGuadeloupe = "####-###-##-##-##";
private final String formatForMartinique = "####-###-##-##-##";
private final String formatForGuyane = "####-###-##-##-##";
private final String formatForReunionMayotte = "####-###-##-##-##";
private final String formatForNouvelleCaledonie = "####-##-##-##";
private final String formatForAutre = "######################";
private final String formatForFranceNationnal = "##-##-##-##-##";
public PhoneNumberFilter(TextField textField, String separator) {
this.tf = textField;
if (separator != null && !separator.isEmpty()) {
this.separator = separator;
} else {
this.separator = "";
}
TextFormatter<String> textFormatter = new TextFormatter(new DefaultStringConverter(), "", new PhoneNumberFilter());
tf.setTextFormatter(textFormatter);
}
public PhoneNumberFilter() {
}
@Override
public TextFormatter.Change apply(TextFormatter.Change change) {
if (change.isContentChange()) {
String resultat = "";
handleBackspaceOverSpecialCharacter(change);
int originalNewTextLength = change.getControlNewText().length();
if (change.getControlNewText().startsWith("+33")) {
// System.out.println("FRANCE");
length = formatForFrance.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForFrance);
} else if (change.getControlNewText().startsWith("+49")) {
// System.out.println("ALLEMAGNE");
length = formatForAllemagne.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForAllemagne);
} else if (change.getControlNewText().startsWith("+34")) {
// System.out.println("ESPAGNE");
length = formatForEspagne.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForEspagne);
} else if (change.getControlNewText().replaceAll(separator, "").startsWith("+3245") || change.getControlNewText().replaceAll(separator, "").startsWith("+3249")) {
// System.out.println("BELGIQUE GSM");
length = formatForBelgiqueGSM.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForBelgiqueGSM);
} else if (change.getControlNewText().replaceAll(separator, "").startsWith("+322") || change.getControlNewText().replaceAll(separator, "").startsWith("+323") || change.getControlNewText().replaceAll(separator, "").startsWith("+329")) {
// System.out.println("BELGIQUE AUTRE 1");
length = formatForBelgiqueAutre.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForBelgiqueAutre);
} else if (change.getControlNewText().startsWith("+32")) {
// System.out.println("BELGIQUE");
length = formatForBelgique.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForBelgique);
} else if (change.getControlNewText().replaceAll(separator, "").startsWith("+3526")) {
// System.out.println("LUXEMBOURG 1");
length = formatForLuxembourg.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForLuxembourg);
} else if (change.getControlNewText().startsWith("+352")) {
// System.out.println("LUXEMBOURG AUTRE");
length = formatForLuxembourgAutre.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForLuxembourgAutre);
} else if (change.getControlNewText().startsWith("+377")) {
// System.out.println("MONACO");
length = formatForMonaco.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForMonaco);
} else if (change.getControlNewText().startsWith("+41")) {
// System.out.println("SUISSE");
length = formatForSuisse.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForSuisse);
} else if (change.getControlNewText().replaceAll(separator, "").startsWith("+390")) {
// System.out.println("ITALIE FIXE");
length = formatForItalieFixe.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForItalieFixe);
} else if (change.getControlNewText().replaceAll(separator, "").startsWith("+393")) {
// System.out.println("ITALIE PORTABLE");
length = formatForItaliePort.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForItaliePort);
} else if (change.getControlNewText().startsWith("+39")) {
// System.out.println("ITALIE AUTRE");
length = formatForItalieAutre.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForItalieAutre);
} else if (change.getControlNewText().startsWith("+376")) {
// System.out.println("ANDORRE");
length = formatForAndorre.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForAndorre);
} else if (change.getControlNewText().startsWith("+590")) {
// System.out.println("GUADELOUPE");
length = formatForGuadeloupe.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForGuadeloupe);
} else if (change.getControlNewText().startsWith("+596")) {
// System.out.println("MARTINIQUE");
length = formatForMartinique.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForMartinique);
} else if (change.getControlNewText().startsWith("+594")) {
// System.out.println("GUYANE");
length = formatForGuyane.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForGuyane);
} else if (change.getControlNewText().startsWith("+262")) {
// System.out.println("REUNION ET MAYOTTE");
length = formatForReunionMayotte.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForReunionMayotte);
} else if (change.getControlNewText().startsWith("+687")) {
// System.out.println("NOUVELLE-CALEDONIE");
length = formatForNouvelleCaledonie.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForNouvelleCaledonie);
} else if (change.getControlNewText().startsWith("+")) {
// System.out.println("AUTRE - PAYS NON REFERENCE");
length = formatForAutre.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForAutre);
} else if (change.getControlNewText().length() >= 3) {
if (Character.isDigit(change.getControlNewText().charAt(0))) {
// System.out.println("France Nationnal");
length = formatForFranceNationnal.length();
resultat = getPhoneNumberFormatted(change.getControlNewText(), formatForFranceNationnal);
}
} else {
resultat = change.getControlNewText();
}
if (change.getControlText().length() == length && originalNewTextLength > length && length != 0) {
change.setText(change.getControlText());
} else {
change.setText(resultat);
}
change.setRange(0, change.getControlText().length());
int caretOffset = change.getControlNewText().length() - originalNewTextLength;
change.setCaretPosition(change.getCaretPosition() + caretOffset);
change.setAnchor(change.getAnchor() + caretOffset);
return change;
}
return change;
}
private void handleBackspaceOverSpecialCharacter(TextFormatter.Change change) {
if (change.isDeleted() && (change.getSelection().getLength() == 0)) {
if (!Character.isDigit(change.getControlText().charAt(change.getRangeStart())) && !"+".equals(String.valueOf(change.getControlText().charAt(change.getRangeStart())))) {
if (change.getRangeStart() > 0) {
change.setRange(change.getRangeStart() - 1, change.getRangeEnd() - 1);
}
}
}
}
private String getPhoneNumberFormatted(String phoneNumber, String format) {
if (phoneNumber.length() > length) {
phoneNumber = phoneNumber.substring(0, length);
}
String vretour = "";
if (phoneNumber.length() <= format.length()) {
phoneNumber = phoneNumber.replaceAll("[^0-9+]", "");
int index = findXDotPosition(format, phoneNumber.length());
format = format.substring(0, index + 1);
int indexCharArray = 0;
for (char unChar : format.toCharArray()) {
if ("#".charAt(0) == unChar) {
vretour = vretour + phoneNumber.toCharArray()[indexCharArray];
indexCharArray++;
}
if ("-".charAt(0) == unChar) {
vretour = vretour + separator;
}
}
} else {
vretour = phoneNumber;
}
return vretour;
}
private static int findXDotPosition(String s, int separatorToFind) {
int result = -1;
char[] ca = s.toCharArray();
for (int i = 0; i < ca.length; ++i) {
if (ca[i] == '#') {
--separatorToFind;
}
if (separatorToFind == 0) {
return i;
}
}
return result;
}
}
只需创建一个类似new PhoneNumberFilter(tf, " ");的对象(tf=TextField，第二个参数是不同电话号码之间的分隔符(。这将执行程序的其余部分，并将很好地重新格式化输入的数字。
我还有最后一个问题。当我在电话号码的末尾点击两次，或者当我试图在数字已经达到指示的最大字符数时在最后一次书写时，我的光标会毫无明显原因地向后移动1个缺口，并且我找不到强迫光标停留在数字的最末端的方法。这正常吗？有解决方案吗？