Android 使用电话号码格式屏蔽EditText,如PhoneNumberRutils中的格式
我想让用户在editText中输入电话号码,以便在用户每次输入号码时动态更改格式。也就是说,当用户输入多达4位数字时,如7144,编辑文本显示“714-4”。Android 使用电话号码格式屏蔽EditText,如PhoneNumberRutils中的格式,android,formatting,android-edittext,masking,Android,Formatting,Android Edittext,Masking,我想让用户在editText中输入电话号码,以便在用户每次输入号码时动态更改格式。也就是说,当用户输入多达4位数字时,如7144,编辑文本显示“714-4”。 我希望editText在用户输入数字时动态更新为############格式。如何做到这一点?另外,我处理的编辑文本不止一个。最简单的方法是使用内置的Android 所以,基本上你可以在代码中获得你的编辑文本,然后像这样设置你的文本监视程序 EditText inputField = (EditText) findViewById(R.i
我希望editText在用户输入数字时动态更新为############格式。如何做到这一点?另外,我处理的编辑文本不止一个。最简单的方法是使用内置的Android 所以,基本上你可以在代码中获得你的编辑文本,然后像这样设置你的文本监视程序
EditText inputField = (EditText) findViewById(R.id.inputfield);
inputField.addTextChangedListener(new PhoneNumberFormattingTextWatcher());
使用PhoneNumberFormattingTextWatcher的好处在于,它可以根据您所在的地区正确设置您的号码输入格式。以上答案是正确的,但它适用于特定国家/地区。如果有人想要这样的格式化电话号码(###-#-#-#-#)。然后用这个:
etPhoneNumber.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
int digits = etPhoneNumber.getText().toString().length();
if (digits > 1)
lastChar = etPhoneNumber.getText().toString().substring(digits-1);
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int digits = etPhoneNumber.getText().toString().length();
Log.d("LENGTH",""+digits);
if (!lastChar.equals("-")) {
if (digits == 3 || digits == 7) {
etPhoneNumber.append("-");
}
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
在活动中声明String lastChar=”“
现在在edittext的xml中添加这一行
android:inputType="phone"
就这些
已编辑:如果您希望编辑文本长度限制为10位,请在下面添加行:
android:maxLength="12"
(它是12,因为“-”将占用两倍的空间)只需将以下内容添加到电话号码的编辑文本中,即可获得格式化的电话号码(###-##-###)
Phone.addTextChangedListener(新的TextWatcher(){
int-length_=0;
@凌驾
更改前文本之前的公共void(字符序列s、int start、int count、int after){
长度=s.长度();
}
@凌驾
public void onTextChanged(字符序列、int start、int before、int count){
}
@凌驾
公共无效后文本已更改(可编辑){
if(长度在3){
if(字符isDigit(s.charAt(3)))
s、 插入(3),“-”;
}
如果(s.长度()>7){
if(字符isDigit(s.charAt(7)))
s、 插入(7),“-”;
}
}
}
});
我的脚本,示例取自此处
上述解决方案不考虑退格,因此当您在键入后删除一些数字时,格式往往会混乱。下面的代码更正了此问题
phoneNumberEditText.addTextChangedListener(new TextWatcher() {
int beforeLength;
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
beforeLength = phoneNumberEditText.length();
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int digits = phoneNumberEditText.getText().toString().length();
if (beforeLength < digits && (digits == 3 || digits == 7)) {
phoneNumberEditText.append("-");
}
}
@Override
public void afterTextChanged(Editable s) { }
});
phonenumberditext.addTextChangedListener(新的TextWatcher(){
长度前的整数;
@凌驾
更改前文本之前的公共void(字符序列s、int start、int count、int after){
beforeLength=phoneNumberEditText.length();
}
@凌驾
public void onTextChanged(字符序列、int start、int before、int count){
int digits=phonenumberditext.getText().toString().length();
如果(在长度<位数&(位数==3 | |位数==7)之前){
PhoneNumberItemText.append(“-”);
}
}
@凌驾
公共无效后文本更改(可编辑的s){}
});
此代码允许您输入带掩码的电话号码##############################
editText.addTextChangedListener(new TextWatcher() {
final static String DELIMITER = "-";
String lastChar;
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
int digits = editText.getText().toString().length();
if (digits > 1)
lastChar = editText.getText().toString().substring(digits-1);
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int digits = editText.getText().length();
// prevent input dash by user
if (digits > 0 && digits != 4 && digits != 8) {
CharSequence last = s.subSequence(digits - 1, digits);
if (last.toString().equals(DELIMITER))
editText.getText().delete(digits - 1, digits);
}
// inset and remove dash
if (digits == 3 || digits == 7) {
if (!lastChar.equals(DELIMITER))
editText.append("-"); // insert a dash
else
editText.getText().delete(digits -1, digits); // delete last digit with a dash
}
dataModel.setPhone(s.toString());
}
@Override
public void afterTextChanged(Editable s) {}
});
布局:
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:imeOptions="actionDone"
android:textAlignment="textStart"
android:inputType="number"
android:digits="-0123456789"
android:lines="1"
android:maxLength="12"/>
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:digits=" 0123456789"
android:inputType="numberPassword"
android:maxLength="14"
tools:text="Example text" />
这是我的解决方案 如何在活动/片段中运行(在onViewCreated中的f.e): Validatior类:
import android.text.Editable
import android.text.TextWatcher
import android.widget.EditText
class ExampleIdWatcher(exampleIdInput: EditText) : TextWatcher {
private var exampleIdInput: EditText = exampleIdInput
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
}
override fun onTextChanged(userInput: CharSequence?, start: Int, before: Int, count: Int) {
if (userInput!!.isNotEmpty() && !areSpacesCorrect(userInput)) {
val stringTextWithoutWhiteSpaces: String = userInput.toString().replace(" ", "")
val textSB: StringBuilder = StringBuilder(stringTextWithoutWhiteSpaces)
when {
textSB.length > 8 -> {
setSpacesAndCursorPosition(textSB, 2, 6, 10)
}
textSB.length > 5 -> {
setSpacesAndCursorPosition(textSB, 2, 6)
}
textSB.length > 2 -> {
setSpacesAndCursorPosition(textSB, 2)
}
}
}
}
override fun afterTextChanged(s: Editable?) {
}
private fun setSpacesAndCursorPosition(textSB: StringBuilder, vararg ts: Int) {
for (t in ts) // ts is an Array
textSB.insert(t, SPACE_CHAR)
val currentCursorPosition = getCursorPosition(exampleIdInput.selectionStart)
exampleIdInput.setText(textSB.toString())
exampleIdInput.setSelection(currentCursorPosition)
}
private fun getCursorPosition(currentCursorPosition: Int): Int {
return if (EXAMPLE_ID_SPACE_CHAR_CURSOR_POSITIONS.contains(currentCursorPosition)) {
currentCursorPosition + 1
} else {
currentCursorPosition
}
}
private fun areSpacesCorrect(userInput: CharSequence?): Boolean {
EXAMPLE_ID_SPACE_CHAR_INDEXES.forEach {
if (userInput!!.length > it && userInput[it].toString() != SPACE_CHAR) {
return false
}
}
return true
}
companion object {
private val EXAMPLE_ID_SPACE_CHAR_INDEXES: List<Int> = listOf(2, 6, 10)
private val EXAMPLE_ID_SPACE_CHAR_CURSOR_POSITIONS: List<Int> = EXAMPLE_ID_SPACE_CHAR_INDEXES.map { it + 1 }
private const val SPACE_CHAR: String = " "
}
}
Kotlin中Android的动态掩码。这是一个工作良好,严格符合电话号码面罩。你可以提供任何口罩 EDIT1:我有一个新版本,可以锁定用户在键盘上键入的不需要的字符
/**
* Text watcher allowing strictly a MASK with '#' (example: (###) ###-####
*/
class NumberTextWatcher(private var mask: String) : TextWatcher {
companion object {
const val MASK_CHAR = '#'
}
// simple mutex
private var isCursorRunning = false
private var isDeleting = false
override fun afterTextChanged(s: Editable?) {
if (isCursorRunning || isDeleting) {
return
}
isCursorRunning = true
s?.let {
val onlyDigits = removeMask(it.toString())
it.clear()
it.append(applyMask(mask, onlyDigits))
}
isCursorRunning = false
}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
isDeleting = count > after
}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {}
private fun applyMask(mask: String, onlyDigits: String): String {
val maskPlaceholderCharCount = mask.count { it == MASK_CHAR }
var maskCurrentCharIndex = 0
var output = ""
onlyDigits.take(min(maskPlaceholderCharCount, onlyDigits.length)).forEach { c ->
for (i in maskCurrentCharIndex until mask.length) {
if (mask[i] == MASK_CHAR) {
output += c
maskCurrentCharIndex += 1
break
} else {
output += mask[i]
maskCurrentCharIndex = i + 1
}
}
}
return output
}
private fun removeMask(value: String): String {
// extract all the digits from the string
return Regex("\\D+").replace(value, "")
}
}
编辑2:单元测试
class NumberTextWatcherTest {
@Test
fun phone_number_test() {
val phoneNumberMask = "(###) ###-####"
val phoneNumberTextWatcher = NumberTextWatcher(phoneNumberMask)
val input = StringBuilder()
val expectedResult = "(012) 345-6789"
var result = ""
// mimic typing 10 digits
for (i in 0 until 10) {
input.append(i)
result = mimicTextInput(phoneNumberTextWatcher, result, i.toString()) ?: ""
}
Assert.assertEquals(input.toString(), "0123456789")
Assert.assertEquals(result, expectedResult)
}
@Test
fun credit_card_test() {
val creditCardNumberMask = "#### #### #### ####"
val creditCardNumberTextWatcher = NumberTextWatcher(creditCardNumberMask)
val input = StringBuilder()
val expectedResult = "0123 4567 8901 2345"
var result = ""
// mimic typing 16 digits
for (i in 0 until 16) {
val value = i % 10
input.append(value)
result = mimicTextInput(creditCardNumberTextWatcher, result, value.toString()) ?: ""
}
Assert.assertEquals(input.toString(), "0123456789012345")
Assert.assertEquals(result, expectedResult)
}
@Test
fun date_test() {
val dateMask = "####/##/##"
val dateTextWatcher = NumberTextWatcher(dateMask)
val input = "20200504"
val expectedResult = "2020/05/04"
val initialInputValue = ""
val result = mimicTextInput(dateTextWatcher, initialInputValue, input)
Assert.assertEquals(result, expectedResult)
}
@Test
fun credit_card_expiration_date_test() {
val creditCardExpirationDateMask = "##/##"
val creditCardExpirationDateTextWatcher = NumberTextWatcher(creditCardExpirationDateMask)
val input = "1121"
val expectedResult = "11/21"
val initialInputValue = ""
val result = mimicTextInput(creditCardExpirationDateTextWatcher, initialInputValue, input)
Assert.assertEquals(result, expectedResult)
}
private fun mimicTextInput(textWatcher: TextWatcher, initialInputValue: String, input: String): String? {
textWatcher.beforeTextChanged(initialInputValue, initialInputValue.length, initialInputValue.length, input.length + initialInputValue.length)
val newText = initialInputValue + input
textWatcher.onTextChanged(newText, 1, newText.length - 1, 1)
val editable: Editable = SpannableStringBuilder(newText)
textWatcher.afterTextChanged(editable)
return editable.toString()
}
}
如果您需要自定义掩码,您会发现此答案很有用:editTextPhone.addTextChangedListener(PhoneNumberFormattingTextWatcher())Kotlin此选项适用于XXX-XXX-XXXX格式化电话号码。只是复制粘贴。这是唯一一个像charm一样工作的最佳解决方案,而这个代码片段可能会解决这个问题,真正有助于提高您的文章质量。请记住,您将在将来回答读者的问题,这些人可能不知道您的代码建议的原因。还请尽量不要用解释性注释挤满你的代码,这会降低代码和解释的可读性!是的,这起到了作用,也处理了背压场景
import android.text.Editable
import android.text.TextWatcher
import android.widget.EditText
class ExampleIdWatcher(exampleIdInput: EditText) : TextWatcher {
private var exampleIdInput: EditText = exampleIdInput
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
}
override fun onTextChanged(userInput: CharSequence?, start: Int, before: Int, count: Int) {
if (userInput!!.isNotEmpty() && !areSpacesCorrect(userInput)) {
val stringTextWithoutWhiteSpaces: String = userInput.toString().replace(" ", "")
val textSB: StringBuilder = StringBuilder(stringTextWithoutWhiteSpaces)
when {
textSB.length > 8 -> {
setSpacesAndCursorPosition(textSB, 2, 6, 10)
}
textSB.length > 5 -> {
setSpacesAndCursorPosition(textSB, 2, 6)
}
textSB.length > 2 -> {
setSpacesAndCursorPosition(textSB, 2)
}
}
}
}
override fun afterTextChanged(s: Editable?) {
}
private fun setSpacesAndCursorPosition(textSB: StringBuilder, vararg ts: Int) {
for (t in ts) // ts is an Array
textSB.insert(t, SPACE_CHAR)
val currentCursorPosition = getCursorPosition(exampleIdInput.selectionStart)
exampleIdInput.setText(textSB.toString())
exampleIdInput.setSelection(currentCursorPosition)
}
private fun getCursorPosition(currentCursorPosition: Int): Int {
return if (EXAMPLE_ID_SPACE_CHAR_CURSOR_POSITIONS.contains(currentCursorPosition)) {
currentCursorPosition + 1
} else {
currentCursorPosition
}
}
private fun areSpacesCorrect(userInput: CharSequence?): Boolean {
EXAMPLE_ID_SPACE_CHAR_INDEXES.forEach {
if (userInput!!.length > it && userInput[it].toString() != SPACE_CHAR) {
return false
}
}
return true
}
companion object {
private val EXAMPLE_ID_SPACE_CHAR_INDEXES: List<Int> = listOf(2, 6, 10)
private val EXAMPLE_ID_SPACE_CHAR_CURSOR_POSITIONS: List<Int> = EXAMPLE_ID_SPACE_CHAR_INDEXES.map { it + 1 }
private const val SPACE_CHAR: String = " "
}
}
<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:digits=" 0123456789"
android:inputType="numberPassword"
android:maxLength="14"
tools:text="Example text" />
XX XXX XXX XXX
/**
* Text watcher allowing strictly a MASK with '#' (example: (###) ###-####
*/
class NumberTextWatcher(private var mask: String) : TextWatcher {
companion object {
const val MASK_CHAR = '#'
}
// simple mutex
private var isCursorRunning = false
private var isDeleting = false
override fun afterTextChanged(s: Editable?) {
if (isCursorRunning || isDeleting) {
return
}
isCursorRunning = true
s?.let {
val onlyDigits = removeMask(it.toString())
it.clear()
it.append(applyMask(mask, onlyDigits))
}
isCursorRunning = false
}
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
isDeleting = count > after
}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {}
private fun applyMask(mask: String, onlyDigits: String): String {
val maskPlaceholderCharCount = mask.count { it == MASK_CHAR }
var maskCurrentCharIndex = 0
var output = ""
onlyDigits.take(min(maskPlaceholderCharCount, onlyDigits.length)).forEach { c ->
for (i in maskCurrentCharIndex until mask.length) {
if (mask[i] == MASK_CHAR) {
output += c
maskCurrentCharIndex += 1
break
} else {
output += mask[i]
maskCurrentCharIndex = i + 1
}
}
}
return output
}
private fun removeMask(value: String): String {
// extract all the digits from the string
return Regex("\\D+").replace(value, "")
}
}
class NumberTextWatcherTest {
@Test
fun phone_number_test() {
val phoneNumberMask = "(###) ###-####"
val phoneNumberTextWatcher = NumberTextWatcher(phoneNumberMask)
val input = StringBuilder()
val expectedResult = "(012) 345-6789"
var result = ""
// mimic typing 10 digits
for (i in 0 until 10) {
input.append(i)
result = mimicTextInput(phoneNumberTextWatcher, result, i.toString()) ?: ""
}
Assert.assertEquals(input.toString(), "0123456789")
Assert.assertEquals(result, expectedResult)
}
@Test
fun credit_card_test() {
val creditCardNumberMask = "#### #### #### ####"
val creditCardNumberTextWatcher = NumberTextWatcher(creditCardNumberMask)
val input = StringBuilder()
val expectedResult = "0123 4567 8901 2345"
var result = ""
// mimic typing 16 digits
for (i in 0 until 16) {
val value = i % 10
input.append(value)
result = mimicTextInput(creditCardNumberTextWatcher, result, value.toString()) ?: ""
}
Assert.assertEquals(input.toString(), "0123456789012345")
Assert.assertEquals(result, expectedResult)
}
@Test
fun date_test() {
val dateMask = "####/##/##"
val dateTextWatcher = NumberTextWatcher(dateMask)
val input = "20200504"
val expectedResult = "2020/05/04"
val initialInputValue = ""
val result = mimicTextInput(dateTextWatcher, initialInputValue, input)
Assert.assertEquals(result, expectedResult)
}
@Test
fun credit_card_expiration_date_test() {
val creditCardExpirationDateMask = "##/##"
val creditCardExpirationDateTextWatcher = NumberTextWatcher(creditCardExpirationDateMask)
val input = "1121"
val expectedResult = "11/21"
val initialInputValue = ""
val result = mimicTextInput(creditCardExpirationDateTextWatcher, initialInputValue, input)
Assert.assertEquals(result, expectedResult)
}
private fun mimicTextInput(textWatcher: TextWatcher, initialInputValue: String, input: String): String? {
textWatcher.beforeTextChanged(initialInputValue, initialInputValue.length, initialInputValue.length, input.length + initialInputValue.length)
val newText = initialInputValue + input
textWatcher.onTextChanged(newText, 1, newText.length - 1, 1)
val editable: Editable = SpannableStringBuilder(newText)
textWatcher.afterTextChanged(editable)
return editable.toString()
}
}