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card.io SDK for Android

card.io provides fast, easy credit card scanning in mobile apps.

Stay up to date

Please be sure to keep your app up to date with the latest version of the SDK. All releases follow semantic versioning.

The latest version is available via mavenCentral(). Just add the following dependency:

compile 'io.card:android-sdk:5.5.1'

You can receive updates about new versions via a few different channels:

Also be sure to check and post to the Stack Overflow card.io tag.

Integration instructions

The information in this guide is enough to get started. For additional details, see our javadoc.

(Note: in the past, developers needed to sign up at the card.io site and obtain an app token. This is no longer required.)

Requirements for card scanning

A manual entry fallback mode is provided for devices that do not meet these requirements.

Setup

Add the dependency in your build.gradle:

compile 'io.card:android-sdk:5.5.0'

Sample code (See the SampleApp for an example)

First, we'll assume that you're going to launch the scanner from a button, and that you've set the button's onClick handler in the layout XML via android:onClick="onScanPress". Then, add the method as:

public void onScanPress(View v) {
    Intent scanIntent = new Intent(this, CardIOActivity.class);

    // customize these values to suit your needs.
    scanIntent.putExtra(CardIOActivity.EXTRA_REQUIRE_EXPIRY, true); // default: false
    scanIntent.putExtra(CardIOActivity.EXTRA_REQUIRE_CVV, false); // default: false
    scanIntent.putExtra(CardIOActivity.EXTRA_REQUIRE_POSTAL_CODE, false); // default: false

    // MY_SCAN_REQUEST_CODE is arbitrary and is only used within this activity.
    startActivityForResult(scanIntent, MY_SCAN_REQUEST_CODE);
}

Next, we'll override onActivityResult() to get the scan result.

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == MY_SCAN_REQUEST_CODE) {
        String resultDisplayStr;
        if (data != null && data.hasExtra(CardIOActivity.EXTRA_SCAN_RESULT)) {
            CreditCard scanResult = data.getParcelableExtra(CardIOActivity.EXTRA_SCAN_RESULT);

            // Never log a raw card number. Avoid displaying it, but if necessary use getFormattedCardNumber()
            resultDisplayStr = "Card Number: " + scanResult.getRedactedCardNumber() + "\n";

            // Do something with the raw number, e.g.:
            // myService.setCardNumber( scanResult.cardNumber );

            if (scanResult.isExpiryValid()) {
                resultDisplayStr += "Expiration Date: " + scanResult.expiryMonth + "/" + scanResult.expiryYear + "\n";
            }

            if (scanResult.cvv != null) {
                // Never log or display a CVV
                resultDisplayStr += "CVV has " + scanResult.cvv.length() + " digits.\n";
            }

            if (scanResult.postalCode != null) {
                resultDisplayStr += "Postal Code: " + scanResult.postalCode + "\n";
            }
        }
        else {
            resultDisplayStr = "Scan was canceled.";
        }
        // do something with resultDisplayStr, maybe display it in a textView
        // resultTextView.setText(resultDisplayStr);
    }
    // else handle other activity results
}

Hints & Tips

Contributing

Please read our contributing guidelines prior to submitting a Pull Request.

License

Please refer to this repo's license file.