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UI form validation library for Android
Java

README.md

Android Saripaar v2 Android Arsenal

Logo

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

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

Note: v2 is still under development and is available as snapshots for PREVIEW. For a feature complete version of the library, please use v1 (available from Maven Central). The following annotations are yet to be implemented in Saripaar v2 @Future, @Past and @Digits.

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.
  • Quick to setup, just download the jar and include it in your libs project folder.
  • Isolates validation logic using rules.
  • Compatible with other annotation frameworks such as ButterKnife, AndroidAnnotations, RoboGuice, etc.,

Quick Start

Step 1 - Annotate your widgets using Saripaar Annotations

@NotEmpty
@Email
private EditText emailEditText;

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

@ConfirmPassword
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() {
    super.onCreate();
    // Code…

    validator = new Validator(this);
    validator.setValidationListener(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 implements ValidationListener {

    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) {
        validator.validate();
    }
});

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.

Maven

<dependency>
    <groupId>com.mobsandgeeks</groupId>
    <artifactId>android-saripaar</artifactId>
    <version>2.0-SNAPSHOT</version>
</dependency>

Gradle

dependencies {
    compile 'com.mobsandgeeks:android-saripaar:2.0-SNAPSHOT'
}

Snapshots

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

allprojects {
    repositories {
        mavenCentral()
        maven {
            url "https://oss.sonatype.org/content/repositories/snapshots/"
        }
    }
}

ProGuard

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

-keep class com.mobsandgeeks.saripaar.** {*;}
-keep class commons.validator.routines.** {*;}

Using Saripaar?

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

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Publications

Cover Book
Expert Android
Android Top 10 Libraries & Frameworks (German)

AndroidDev Weekly issue #61 - Open Source Project of the Week
AndroidWeekly issue #65 - Libraries & Code

Wiki

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

License

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

   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.

Saripaar Logo © 2013 - 2015, Mobs & Geeks.

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