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Android Saripaar v2 Android Arsenal


சரிபார் - sari-paar (Tamil for "to check", "verify" or "validate")

Android Saripaar is a simple, feature-rich and powerful rule-based UI form validation library for Android. It is the SIMPLEST UI validation library available for Android.

Why Android Saripaar?

  • Built on top of Apache Commons Validator, a validation framework with proven track record on the web, desktop and mobile platforms.
  • Declarative style validation using Annotations.
  • Extensible, now allows Custom Annotations.
  • Synchronous and Asynchronous validations, you don't have to worry about threading.
  • Supports both BURST and IMMEDIATE modes.
  • Works with Stock Android Widgets, no custom view dependencies.
  • Isolates validation logic using rules.
  • Compatible with other annotation-based libraries and frameworks such as ButterKnife, AndroidAnnotations, RoboGuice, etc.,

Quick Start

Step 1 - Annotate your widgets using Saripaar Annotations

private EditText emailEditText;

@Password(min = 6, scheme = Password.Scheme.ALPHA_NUMERIC_MIXED_CASE_SYMBOLS)
private EditText passwordEditText;

private EditText confirmPasswordEditText;

@Checked(message = "You must agree to the terms.")
private CheckBox iAgreeCheckBox;

The annotations are self-explanatory. The @Order annotation is required ONLY when performing ordered validations using Validator.validateTill(View) and Validator.validateBefore(View) or in IMMEDIATE mode.

Step 2 - Instantiate a new Validator

public void onCreate(Bundle savedInstanceState) {
    // Code…

    validator = new Validator(this);

    // More code…

You will need a Validator and a ValidationListener for receiving callbacks on validation events.

Step 3 - Implement a ValidationListener

public class RegistrationActivity extends Activity implements ValidationListener {

    // Code…

    public void onValidationSucceeded() {
        Toast.makeText(this, "Yay! we got it right!", Toast.LENGTH_SHORT).show();

    public void onValidationFailed(List<ValidationError> errors) {
        for (ValidationError error : errors) {
            View view = error.getView();
            String message = error.getCollatedErrorMessage(this);

            // Display error messages ;)
            if (view instanceof EditText) {
                ((EditText) view).setError(message);
            } else {
                Toast.makeText(this, message, Toast.LENGTH_LONG).show();
  • onValidationSucceeded() - Called when all your views pass all validations.
  • onValidationFailed(List<ValidationError> errors) - Called when there are validation error(s).

Step 4 - Validate

registerButton.setOnClickListener(new OnClickListener() {

    public void onClick(View v) {

The Validator.validate() call runs the validations and returns the result via appropriate callbacks on the ValidationListener. You can run validations on a background AsyncTask by calling the Validator.validate(true) method.

Saripaar X

If you are looking for country-specific annotations, checkout the Saripaar X project. The extensions project is in its early stages and needs contributors. Feel free to contribute.


    <version>(latest version)</version>


dependencies {
    compile 'com.mobsandgeeks:android-saripaar:(latest version)'


In your {project_base}/build.gradle file, include the following.

allprojects {
    repositories {
        maven {
            url ""


Exclude Saripaar classes from obfuscation and minification. Add the following rules to your file.

-keep class com.mobsandgeeks.saripaar.** {*;}
-keep @com.mobsandgeeks.saripaar.annotation.ValidateUsing class * {*;}


For those interested in finding out how v2 evolved from v1, watch this (~20 second) video.

Using Saripaar?

Tweet me with your Google Play URL and I'll add your app to the list :)

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Please visit the wiki for a complete guide on Android Saripaar.


Copyright 2012 - 2015 Mobs & Geeks

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

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
See the License for the specific language governing permissions and
limitations under the License.

Saripaar Logo © 2013 - 2015, Mobs & Geeks.