User input masking library repo.

Last update: Aug 9, 2022

Input Mask

Awesome Android Arsenal Bintray codebeat badge license

PlatformAndroidiOSmacOS

Direct input

More GIFs [~3 MB] Direct input Direct input Direct input
Direct input Direct input

Migration Guide: v.6

This update brings breaking changes. Namely, the autocomplete flag is now a part of the CaretGravity enum, thus the Mask::apply call is now single-argument, as all the necessary information is included into the CaretString structure.

v.6 introduces the «autoskip» feature, which allows the cursor to jump over formatting blocks of symbols in the middle of the text as if they were a single char when hitting Backspace, and this feature also allows to trim formatting characters on backspacing at the end of the line.

Make sure to take a look at our CHANGELOG.

Description

Input Mask is an Android & iOS native library allowing to format user input on the fly.

The library provides you with a text field listener; when attached, it puts separators into the text while user types it in, and gets rid of unwanted symbols, all according to custom predefined pattern.

This allows to reformat whole strings pasted from the clipboard, e.g. turning pasted 8 800 123-45-67 into
8 (800) 123 45 67.

Each pattern allows to extract valuable symbols from the entered text, returning you the immediate result with the text field listener's callback when the text changes. Such that, you'll be able to extract 1234567 from 8 (800) 123 45 67 or 19991234567 from 1 (999) 123 45 67 with two different patterns.

All separators and valuable symbol placeholders have their own syntax. We call such patterns "masks".

Mask examples:

  1. International phone numbers: +1 ([000]) [000] [00] [00]
  2. Local phone numbers: ([000]) [000]-[00]-[00]
  3. Names: [A][-----------------------------------------------------]
  4. Text: [A…]
  5. Dates: [00]{.}[00]{.}[9900]
  6. Serial numbers: [AA]-[00000099]
  7. IPv4: [099]{.}[099]{.}[099]{.}[099]
  8. Visa card numbers: [0000] [0000] [0000] [0000]
  9. MM/YY: [00]{/}[00]
  10. UK IBAN: GB[00] [____] [0000] [0000] [0000] [00]

Questions & Issues

Check out our wiki for further reading.
Please also take a closer look at our Known issues section before you incorporate our library into your project.

For your bugreports and feature requests please file new issues as usually.

Should you have any questions, search for closed issues or open new ones at StackOverflow with the input-mask tag.

We also have a community-driven cookbook of recipes, be sure to check it out, too.

Installation

Gradle

Make sure you've added Kotlin support to your project.

repositories {
    jcenter()
}

dependencies {
    implementation 'com.redmadrobot:input-mask-android:6.0.0'
    
    implementation 'org.jetbrains.kotlin:kotlin-stdlib:$latest_version'
}

Known issues

InputMask vs. NoClassDefFoundError

java.lang.NoClassDefFoundError: Failed resolution of: Lkotlin/jvm/internal/Intrinsics;

Receiving this error might mean you haven't configured Kotlin for your Java only project. Consider explicitly adding the following to the list of your project dependencies:

implementation 'org.jetbrains.kotlin:kotlin-stdlib:$latest_version'

— where latest_version is the current version of kotlin-stdlib.

InputMask vs. android:inputType and IndexOutOfBoundsException

Be careful when specifying field's android:inputType. The library uses native Editable variable received on afterTextChange event in order to replace text efficiently. Because of that, field's inputType is actually considered when the library is trying to mutate the text.

For instance, having a field with android:inputType="numeric", you cannot put spaces and dashes into the mentioned Editable variable by default. Doing so will cause an out of range exception when the MaskedTextChangedListener will try to reposition the cursor.

Still, you may use a workaround by putting the android:digits value beside your android:inputType; there, you should specify all the acceptable symbols:

<EditText
    android:inputType="number"
    android:digits="0123456789 -."
    ... />

— such that, you'll have the SDK satisfied.

Alternatively, if you are using a programmatic approach without XML files, you may consider configuring a KeyListener like this:

editText.setInputType(InputType.TYPE_CLASS_NUMBER);
editText.setKeyListener(DigitsKeyListener.getInstance("0123456789 -.")); // modify character set for your case, e.g. add "+()"

InputMask vs. autocorrection & prediction

(presumably fixed by PR50)

Symptoms:

  • You've got a wildcard template like [________], allowing user to write any kind of symbols;
  • Cursor jumps to the beginning of the line or to some random position while user input.

In this case text autocorrection & prediction might be a root cause of your problem, as it behaves somewhat weirdly in case when field listener tries to change the text during user input.

If so, consider disabling text suggestions by using corresponding input type:

<EditText
    ...
    android:inputType="textNoSuggestions" />

Additionally be aware that some of the third-party keyboards ignore textNoSuggestions setting; the recommendation is to use an extra workaround by setting the inputType to textVisiblePassword.

InputMask vs. android:textAllCaps

Kudos to Weiyi Li for reporting this issue

Please be advised that android:textAllCaps is not meant to work with EditText instances:

This setting will be ignored if this field is editable or selectable.

Enabling this setting on editable and/or selectable fields leads to weird and unpredictable behaviour and sometimes even crashes. Instead, consider using android:inputType="textCapCharacters" or workaround by adding an InputFilter:

final InputFilter[] filters = { new InputFilter.AllCaps() };
editText.setFilters(filters);

Bare in mind, you might have to befriend this solution with your existing android:digits property in case your text field accepts both digits and letters.

References

The list of projects that are using this library which were kind enough to share that information.

Feel free to add yours below.

Special thanks

These folks rock:

License

The library is distributed under the MIT LICENSE.

GitHub

https://github.com/RedMadRobot/input-mask-android
Comments
  • 1. Migrate to Maven Central

    JFrog just announced that they'll be shutting down JCenter: https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/

    Key dates are:

    • February 28th: No more submissions will be accepted to Bintray, JCenter
    • May 1st: Bintray, JCenter services will no longer be available

    Hence, input-mask-android should also be migrated to another maven repository like Maven central.

    Reviewed by GuilhE at 2021-02-05 11:53
  • 2. bug java.lang.IndexOutOfBoundsException:

    java.lang.IndexOutOfBoundsException: setSpan (11 ... 11) ends beyond length 10 at android.text.SpannableStringBuilder.checkRange(SpannableStringBuilder.java:1265) at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:684) at android.text.SpannableStringBuilder.setSpan(SpannableStringBuilder.java:677) at android.text.Selection.setSelection(Selection.java:76) at android.widget.TextView.semSetSelection(TextView.java:11571) at android.widget.TextView.semSetSelection(TextView.java:11585) at android.widget.EditText.setSelection(EditText.java:125) at com.redmadrobot.inputmask.MaskedTextChangedListener.afterTextChanged(MaskedTextChangedListener.kt:113) at android.widget.TextView.sendAfterTextChanged(TextView.java:9508) at android.widget.TextView$ChangeWatcher.afterTextChanged(TextView.java:12460) at android.text.SpannableStringBuilder.sendAfterTextChanged(SpannableStringBuilder.java:1218) at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:579) at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:509) at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:508) at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:850) at android.view.inputmethod.BaseInputConnection.commitText(BaseInputConnection.java:200) at com.android.internal.widget.EditableInputConnection.commitText(EditableInputConnection.java:183) at android.view.inputmethod.InputConnectionWrapper.commitText(InputConnectionWrapper.java:158) at com.android.tools.profiler.support.event.InputConnectionWrapper.commitText(InputConnectionWrapper.java:43) at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:345) at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:91) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6776) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1518) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)

    Reviewed by Anton22255 at 2017-11-27 13:27
  • 3. maskFilled wrong value for subsequent optional blocks

    Library version: 4.0.0 Issue: Hello, I've faced the issue of wrong 'maskFilled' argument value when subsequent blocks with optional digits had been installed.

    Consider the following example:

    MaskedTextChangedListener.installOn(
        testEditText,
        "[0000] [9999] [999]",
        object : MaskedTextChangedListener.ValueListener{
            override fun onTextChanged(maskFilled: Boolean, extractedValue: String) {
                Log.d("TEXT_CHANGED", "extractedValue=[$extractedValue], maskFilled=[$maskFilled]")
            }
        }
    )
    

    The actual output as follows:

    D/TEXT_CHANGED: extractedValue=[111], maskFilled=[false]  
    D/TEXT_CHANGED: extractedValue=[1111], maskFilled=[false] 
    D/TEXT_CHANGED: extractedValue=[11111], maskFilled=[false]
    D/TEXT_CHANGED: extractedValue=[111111], maskFilled=[false]
    D/TEXT_CHANGED: extractedValue=[1111111], maskFilled=[false]
    D/TEXT_CHANGED: extractedValue=[11111111], maskFilled=[true]
    D/TEXT_CHANGED: extractedValue=[111111111], maskFilled=[true]
    

    But the expected output should be:

    D/TEXT_CHANGED: extractedValue=[111], maskFilled=[false]  
    D/TEXT_CHANGED: extractedValue=[1111], maskFilled=[true] 
    D/TEXT_CHANGED: extractedValue=[11111], maskFilled=[true]
    D/TEXT_CHANGED: extractedValue=[111111], maskFilled=[true]
    D/TEXT_CHANGED: extractedValue=[1111111], maskFilled=[true]
    D/TEXT_CHANGED: extractedValue=[11111111], maskFilled=[true]
    D/TEXT_CHANGED: extractedValue=[111111111], maskFilled=[true]
    

    Thanks in advance.

    Reviewed by peanutwolf at 2018-12-05 08:16
  • 4. optional number ignored

    Hi! I'm trying to validate a Chilean rut,

    so I have a mask like this [90].[000].[000]{-}[_] in a ReversedMaskTextChangedListener, the problem is that the last digit is ignored so if i write nine digits the last one is deleted then for example if i add 123456789 I get 2.345.678-9 result.

    it does not happen if i add a second number required, leaving the mask like this: [900].[000].[000]{-}[_] in this case, if I add 1234567890, I get 123.456.789-0

    Reviewed by jesualex at 2018-07-19 20:07
  • 5. affineFormats конфликтуют.

    Использую affineFormats для ввода серийных номеров. Есть основной формат "[A] [000] [AA] [00]". Есть дополнительный affineFormats "[A][0000] [00]".

    Без лишних манипуляций дополнительный ввести просто невозможно. Перепробовал все сочетания affinityCalculationStrategy, но ни один не позволил решить задачу.

    Пользователю приходится добавлять и убирать пробел, являющийся вторым символом в этой строке, и только в таком случае он может переключаться между форматами.

    Вопрос: возможно ли сделать такое автоматическое переключение между масками силами данной либы?

    Reviewed by RandGor at 2021-11-25 12:35
  • 6. [Question] - When deleting a space, make auto trim()

    Prerequisites

    • [X] Put an X between the brackets on this line if you have done all of the following:
      • read our Wiki;
      • read the entire Known issues section;
      • checked that my feature request isn't already filled;
      • searched StackOverflow's input-mask tag for similar problems.

    Summary

    When deleting text auto trim() (this can be optional)

    Motivation

    Achieve the same functionality when typing.

    Describe the solution you'd like

    If our mask is [000] [000], when we type the fourth char this lib will automatically put a space and insert the 4th char after it. When deleting this behaviour could be similar, for instance, when deleting the 4th char it could also delete the space.

    Describe alternatives you've considered

    private const val PHONE_MASK = "[000] [000] [000]"
    android:digits="0123456789 "
    android:inputType="number|phone"
    
    • I've tried to manually achieve this (with another listener) but it will fail with java.lang.IndexOutOfBoundsException: setSpan (N … N) ends beyond length ...
    • Tried to remove the space char from digits and listener.autocomplete = true but it also fails with java.lang.IndexOutOfBoundsException: setSpan (4 ... 4) ends beyond length 3
    Reviewed by GuilhE at 2020-03-10 14:57
  • 7. Combine digit mask and letter input

    How can I combine mask for phone number and input letter, for example: mask: +7 ([000]) [000]-[00]-[00] input: 7 -> +7 +79 -> +7 (9 +7 (9h -> 79h

    Reviewed by elvisfromsouth at 2019-07-01 14:43
  • 8. Affinity masks with a default (For a credit card)

    Hi guys! Such a brilliant library you have!

    I have a small question. Here is a piece of code:

    MaskedTextChangedListener.installOn(
                binding.paymentCardNumberLayout.editText!!,
                "[0000] [0000] [0000] [0000] [999]",
                affineFormats = listOf(
                    "3[000] [000000] [00009]",              // American Express, Diners Club (14-15)
                    "4[000] [0000] [0000] [0000] [999]",    // Visa (16-19)
                    "5[000] [0000] [0000] [0000] [999]",    // Master Card (16-19)
                    "6[000] [0000] [0000] [0000]"           // Discover (16)
                ),
                affinityCalculationStrategy = AffinityCalculationStrategy.PREFIX)
    

    I want my user to start typing his card number and if it starts with one of the affinity prefixes so use it to format. But in this example the default mask is always used.

    If I change the default mask to "4[000] [0000] [0000] [0000] [999]" for example it works like a charm. But there is always "4" in the edittext on the first display of the form.

    Reviewed by Zeliret at 2018-12-19 18:36
  • 9. ERROR: Failed to resolve: com.redmadrobot:input-mask-android:4.2.0

    I have added the line implementation 'com.redmadrobot:input-mask-android:4.2.0' to the 'app' module of my project, according to the latest docs.

    What I get is: "ERROR: Failed to resolve: com.redmadrobot:input-mask-android:4.2.0 Show in Project Structure dialog Affected Modules: app"

    Is it really available in jcenter now?

    Reviewed by haart28 at 2019-06-06 13:30
  • 10. Поддержка RTL

    Здравствуйте! При реализации в приложении персидской локализации (Right To Left) возникла проблема с отображением маски в EditText. Маска отзеркалилась, но не верно:

    в обычном макете (Left To Right) маска +7 ([000]) [000]-[00]-[00] при заполнении ведёт себя так: +7 (123) 456-78-90. (слева направо, как и ожидается) в макете Right To Left так: 456-78-90 (123) 7+, то есть сама строка заполняется справа налево, но внутри блоков - слева направо.

    другой пример, маска карты - [0000] [0000] [0000] [0000] LTR - 1234 5678 9099 9999 RTL - 9999 9099 5678 1234

    Пытался отключить RTL для поля, добавив android:layoutDirection="ltr" - но это не дало результатов, поле по прежнему заполняется справа налево и в неправильном порядке.

    Подскажите, пожалуйста, как сделать так, что бы при работе приложения в RTL режиме, поля с масками продолжали работать в LTR режиме ?

    P.S.: Спасибо большое за вашу работу, библиотека отличная!

    Reviewed by epifanov-konstantin at 2018-10-31 16:03
  • 11. Wrong formatting when letters mask used [___]

    It works well for digits, but for letters, there is one issue: For example mask is [____] when you type the second character it will turn cursor to the start of the line, so new chars will appear from zero position.

    This is because isDeletion defined in wrong way. I suggest using this method instead override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) { isDeletion = p2 > p3 this.listener?.beforeTextChanged(p0, p1, p2, p3) }

    I can't make PR, so will wait for the fix)))

    Reviewed by kvrus at 2018-04-13 12:50
  • 12. How to use inputMask for ViewHolder (recyclerView) ?

    I have bind method, where i render viewHolder item, my viewHolder consist of EditText. EditText may modified manualy and programmatically when rendered, i am trying remove changeListener before setText, but it always invoke.

    Reviewed by CoffeSweetMilk at 2022-08-15 12:47
  • 13. Possibility to enter any character

    We have an input which waits credit card number. User could enter numbers by himself, like 1234 1234 1234 1234 But he also may choose already entered cards from the favorite list. When user click one of them, the number of chosen card will be set to the input. So, the problem is the number of credit card from the favorite list is masked like 1234 12** **** **34 We know that for the first case we should use this mask: [0000] [0000] [0000] [0000] For the second case we thought this could be used: [0000] [00__] [____] [__00]. But it set 1234 12** **** **34 to the input like 1234 12 i.e it takes only first 6 part. The question is how to validate two possible cases with one mask?

    Reviewed by ttojiyev at 2022-07-16 14:03
  • 14. Change library group to `com.redmadrobot`

    @taflanidi, FYI, we've added DNS record to be able to use com.redmadrobot package on jitpack.io So, input-mask can be accessed by com.redmadrobot:input-mask-android coordinates

    Reviewed by osipxd at 2022-06-20 11:44
  • 15. Switching keyboards in mask

    Describe the bug

    Hello, I have a problem with switching keyboard during typing. When I switch input type from InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS to InputType.TYPE_CLASS_NUMBER I am getting an error IndexOutOfBoundsException. I read the knowing issues https://github.com/RedMadRobot/input-mask-android#knownissues and try to specify android:digit but it does not help. Is there any other solution please ?

    Expected behaviour Switch keyboard from text to numeric without clearing edit text (IndexOutOfBoundsException)

    Platform information

    • OS version: [e.g. Android 10]
    • Library version: [e.g. 6.1]

    Code:

       fun formatter(inputLayout: TextInputLayout) {
            with(inputLayout.editText!!) {
                val listener = MaskedTextChangedListener("[AA] [00]", this, object : MaskedTextChangedListener.ValueListener {
                    override fun onTextChanged(maskFilled: Boolean, extractedValue: String, formattedValue: String) {
                        inputType = if (formattedValue.length >= 2) {
                            InputType.TYPE_CLASS_NUMBER
                        } else {
                            InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS or InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
                        }
                    }
                })
                addTextChangedListener(listener)
                onFocusChangeListener = listener
            }
        }
    
               <com.google.android.material.textfield.TextInputLayout
                    android:id="@+id/textInputLayout"
                    style="@style/TextInputLayoutStyle"
                    android:hint="hint"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent">
    
                    <com.google.android.material.textfield.TextInputEditText
                        android:id="@+id/textInputEditText"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 "
                        android:singleLine="true" />
                </com.google.android.material.textfield.TextInputLayout>
    

    formatter(textInputLayout)

    Reviewed by anonyimek at 2022-04-02 09:55
  • 16. Странный конфликт с двумя масками

    Describe the bug

    В общем и целом есть две маски, одна на 10 символов, вторая больше. "[0] [000] [000] [000]" "[00] [000] [000] [000] [000] [000]"

    Есть необходимость, чтобы когда пользователь ввел менее 10 символов - форматировалось по первой маске более 10 символов - переключалась маска и форматировалось по второй при стирании 11 символа - снова по первой.

    Как только не пробовал, какие стратегии не выбирал(перепробовал все), autoskip autocomplete - ноль эмоций

     listener = MaskedTextChangedListener.installOn(
            editText = key,
            primaryFormat = "[0] [000] [000] [000]",
            affineFormats = listOf("[00] [000] [000] [000] [000] [000]"),
            affinityCalculationStrategy = AffinityCalculationStrategy.EXTRACTED_VALUE_CAPACITY,
            valueListener = object : MaskedTextChangedListener.ValueListener {
                override fun onTextChanged(
                    maskFilled: Boolean,
                    extractedValue: String,
                    formattedText: String
                ) {
                  
                }
            }
        )
    

    Как правильно это реализовать?

    Reviewed by KORuL at 2022-03-24 12:16
User input masking library repo.
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