Easy Android form validation in Rx way.

• RxJava
• RxBinding

RxValidator provides fluent API to define validation rules:

Observable<RxValidationResult> observable = 
    RxValidator.createFor(password)
        .nonEmpty()
        .length("Min length is 5", 5)
        .onFocusChanged()
        .toObservable();

In above example nonEmpty and length are validators, .onFocusChanged() decides about validation trigger.

At the moment we have following pre-defined validation rules:

• email
• nonEmpty
• digitOnly
• length
• minLength
• maxLength
• age
• sameAs
• ip4

You can also provide custom validation rule using with(Validator<EditText> externalValidator) operator. It gives you possibility to define your own rules e.g. validate e-mail via HTTP call.

In order to decide, when validation should be launched you can choose one from the following options:

• onFocusChanged - validation result is emitted when EditText lost focus
• onValueChanged - validation result is emitted when value of EditText changed
• onSubscribe - validation result is emitted immediately

Gradle:

repositories {
    jcenter()
    maven { url "https://jitpack.io" }
}

dependencies {
    compile 'com.github.phajduk:RxValidator:94fdca4ec6504985d6187080f1d9e9580703c082' //commit hash
}

Copyright 2016 Pawel Hajduk

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.