Android developer portal with tools, libraries, and apps

Show: All / Free / Paid / Demo

Simple and light library to do validate observable fields with MVVM for android

Each ValidatedObservableField work like ObservableField, but it have 3 observables properties:

  • value - contains the value of type T
  • valid - boolean true if ALL Rules are valid
  • errorMessage - contains NULL or errorMessage from first invalid Rule

Rules are validated one by one (the order is important), the first invalid Rule will break the chain and set errorMessage. Rules are validated onPropertyChange. You can create your own rules using Rule interface. You can use single Rule or many by RuleCommand.

May 25, 2017

A simple, easy to use, no frills, form validator for Android.

Aug 16, 2016

Removes invalid objects during Gson parsing which are marked as required, yet null/empty.

Jul 27, 2018

A simple library for model validation based on annotations.

Feb 17, 2018

This library is heavily inspired by AwesomeValidation but with no external dependencies. It makes it very light weight.

Feb 20, 2016

The easiest way to bring validation to your project.

Nov 23, 2017

Java Validator Library using custom runtime annotations and reflection.

Supports parameters for Fail Policy (Fail on First Error / Continue) and Object Search Policy (Deep / Shallow).

Jan 3, 2018

Phonematter provides a simple to use class for formatting and validating phone numbers in Android apps.

Feb 17, 2016

This library helps to implement phone number verification before performing any further operation.

Sep 28, 2016

Validation library for use individual validation and with views.

Jul 11, 2017

A utility library that does the following type of validations:

  • Check internet connection
  • Validate for empty edit texts
  • Validate for email
  • Validate for mobile number
  • Validate text for any no of digits
  • Fancy Progress Dialog
  • Toast
Apr 6, 2017

Android library designed for rapid and customizable form validation.

You can use FormValidator with any View that extends the original EditText (such as MaterialEditText for example).

Apr 6, 2017

Android library designed for rapid and customizable form validation.

You can use AndroidVerify with any View that extends the original EditText (such as MaterialEditText for example).

Mar 29, 2017

Focus on Android form validation, build your validation rules using the method chaining.

Jul 12, 2016

Ratifier is a form validation library for Android.

Mar 17, 2017

A simple library for validating user input in forms using annotations.

Jul 5, 2014

The goal of this library is to help you in your development of validation forms.

Jan 4, 2017

Easy Android form validation in Rx way.

Jun 12, 2016

Blorm is a field validation lib for android.

Jul 11, 2016

A lib to make validations on java objects.

Jul 31, 2016

Crash fast library for Android.

Simple precondition library for crashing in case you find unexpected values. For example: After you login against a certain API, you have to get back your user. It's completely necessary to have a no null user, so you can checkNotNull(receivedUser).

Apr 16, 2016

Form Validator Library for Android is based on Zend_Validator coded in PHP. This library is intended to simplify and streamline the code to validate a form Android. For the moment, the form can just handle the EditText.

Jul 5, 2014

A small library including an example app which uses the "floating label" pattern to show form validation.

Apr 5, 2015

Form validation and feedback library for Android. Provides .setText for more than just TextView and EditText widgets. Provides easy means to validate with dependencies.

Jul 5, 2014