Decoro

Android library designed for automatic formatting of text input by custom rules.

Installation

Add to the build.gradle of your app module:

dependencies {
    compile 'ru.tinkoff.decoro:decoro:$latestVersion'
}

Usage

String formatting

In examples below the content of the String text will be formatted according to a mask.

Example 1. Using predefined mask

Mask mask = new MaskImpl(PredefinedSlots.RUS_PHONE_NUMBER, true);
mask.insertFront("9995554433");
System.out.println(mask.toString()); // +7 (999) 555-44-33

Using custom mask

Example 2:

Slot[] slots = new UnderscoreDigitSlotsParser().parseSlots("___ ___");
Mask mask = MaskImpl.createTerminated(slots); // 'terminated' mask
mask.insertFront("9995554433");
System.out.println(mask.toString()); // 999 555

Example 3:

Slot[] slots = new UnderscoreDigitSlotsParser().parseSlots("___ ___");
Mask mask = MaskImpl.createNonTeminated(slots); // 'non-terminated' mask
mask.insertFront("9995554433");
System.out.println(mask.toString()); // 999 5554433

Formatting "on the fly"

In examples below all the user's text input to EditText will be formatted according to a mask.

Example 4. Using predefined mask

MaskImpl mask = MaskImpl.createTerminated(PredefinedSlots.CARD_NUMBER_USUAL);
FormatWatcher watcher = new MaskFormatWatcher(mask);
watcher.installOn(editText); // install on any TextView

Masks available out of the box:

PredefinedSlots.SINGLE_SLOT                   // Any character
PredefinedSlots.RUS_PHONE_NUMBER              // Russian phone number formatted as +7 (___) ___-__-__ (digits only)
PredefinedSlots.RUS_PASSPORT                  // Series and number of russian passport formatted as ____ ______  (digits only)
PredefinedSlots.CARD_NUMBER_STANDARD          // Credit card number formatted as ____ ____ ____ ____ (digits only)
PredefinedSlots.CARD_NUMBER_STANDARD_MASKABLE // Credit card number formatted as ____ ____ ____ ____ (digits and chars 'X', 'x', '*')
PredefinedSlots.CARD_NUMBER_MAESTRO           // Credit card number formatted as ________ ____ (digits only)
PredefinedSlots.CARD_NUMBER_MAESTRO_MASKABLE  // Credit card number formatted as ________ ____ (digits and chars 'X', 'x', '*')

Example 5. Using custom mask

Slot[] slots = new UnderscoreDigitSlotsParser().parseSlots("___ ___ ___");
FormatWatcher formatWatcher = new MaskFormatWatcher(MaskImpl.createTerminated(slots));
formatWatcher.installOn(editText); // install on any TextView

Migration

In version 1.1.0 class FormatWatcherImpl was renamed to DescriptorFormatWatcher. Also this version introduced MaskFormatWatcher that offers more clean API than DescriptorFormatWatcher.

References

More examples and details can be found in our wiki (in Russian yet).