FormValidations

FormValidations is an open source library to validate forms in Android apps.

Available validations

• AlphaNumeric - checks if a fields value only contains alpha-numeric characters
• InRange - checks if a fields value is an integer and in a given range (min < value < max)
• IsEmail - checks if a fields value is a valid email
• IsNumber - checks if a felds value is a number
• IsPositiveInteger - checks if fields value is an integer and greater than zero (value > 0)
• Length - checks if a fields value is a given length (min, max or both)
• NotEmpty - checks if field is not blank

You can easily create your own validations, just implement the de.psdev.formvalidations.validations.Validation interface.

Error handlers

• EditTextErrorHandler - displays the validation error on the EditText using the setError method

You can easily create your own error handlers, just implement the de.psdev.formvalidations.FormErrorHandler interface.

Sample usage

Create validation form and add some validations

final Form mForm = Form.create();
mForm.addField(Field.using(mNameEditText).validate(NotEmpty.build()));
mForm.addField(Field.using(mEmailEditText).validate(NotEmpty.build()).validate(IsEmail.build()));
mForm.addField(Field.using(mAgeEditText).validate(InRange.build(0, 120)));
mForm.errorHandler(new EditTextErrorHandler());

Check if the form is valid

private void submit() {
    if (mForm.isValid()) {
        Toast.makeText(this, "Form is valid", Toast.LENGTH_SHORT).show();
    }
}

Checkout the sample project for the full usage example.

Download

Download the latest Release or grab via Maven:

<dependency>
  <groupId>de.psdev.formvalidations</groupId>
  <artifactId>formvalidations</artifactId>
  <version>1.2.0</version>
  <type>aar</type>
</dependency>

or Gradle:

implementation 'de.psdev.formvalidations:formvalidations:1.2.0'

Sample

You can get the latest sample from Jenkins

Credits

This library is based on z-validations by Vitaliy Zasadnyy.

Contributors

Thank you to all the contributors of this project, namely:

• Cristian Hernandez

License

Copyright 2013 Philip Schiffer

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.

This library incorporates code covered by the following terms:

The MIT License (MIT)

Copyright (c) 2013 Vitaliy Zasadnyy

Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.