A custom Android ImageView that generates and displays CAPTCHA images with built-in validation.
CaptchaImageView is a custom Android ImageView library that generates CAPTCHA images directly within mobile applications. It creates visually distorted text codes that users must decipher to prove they are human, solving the problem of implementing bot protection without relying on external web services.
Android developers who need to add CAPTCHA functionality to their apps for form protection, login security, or bot prevention in a self-contained way.
Developers choose CaptchaImageView because it provides a native, lightweight CAPTCHA solution that integrates seamlessly with Android layouts, requires no network calls to third-party services, and offers simple programmatic control for regeneration and validation.
Custom ImageView to generate captcha image.
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Available via JitPack with a simple Gradle dependency, as shown in the README's build.gradle snippets, making it quick to add to Android projects.
Provides a regenerate() method for one-click CAPTCHA refresh, demonstrated in the onClick listener example for effortless updates.
Generates CAPTCHA images locally without external network calls, aligning with the library's philosophy of lightweight, service-free implementation.
Integrates directly into Android XML layouts using standard View attributes, as illustrated in the layout code snippet for flexible placement.
Only supports basic text-based CAPTCHA with visual distortion, missing audio or image-based alternatives for accessibility and enhanced security.
Lacks advanced bot detection mechanisms or built-in server-side validation, which might be insufficient for high-risk applications requiring robust protection.
Relies on JitPack for distribution, as noted in the setup instructions, which could introduce reliability issues if the service changes or goes down.