RxValidator

Easy Android form validation in Rx way.

Dependencies

• RxJava
• RxBinding

Usage

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.

Validators

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.

Validation trigger

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

Download

Gradle:

repositories {

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

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

License

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.