This is a utility library which returns possible credit card types based on the input. This is heavily copy/pasted from Braintree Card Form and Braintree Credit Card Type Node library.
Step 1. Add it in your root build.gradle at the end of repositories:
allprojects {
repositories {
...
maven { url "https://jitpack.io" }
}
}
Step 2. Add the dependency
dependencies {
compile 'com.github.jaypatel512:credit-card-type:master-SNAPSHOT'
}
Step 1. Add repository in pom.xml
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
Step 2. Add the dependency
<dependency>
<groupId>com.github.jaypatel512</groupId>
<artifactId>credit-card-type</artifactId>
<version>master-SNAPSHOT</version>
</dependency>
CreditCardType[] types = CreditCardType.forCardNumber("6");
System.out.println(Arrays.deepToString(types)); // Should return [DISCOVER, MAESTRO, UNIONPAY]
types = CreditCardType.forCardNumber("62");
System.out.println(Arrays.deepToString(types)); // Should return [MAESTRO, UNIONPAY]
types = CreditCardType.forCardNumber("4111111111");
System.out.println(Arrays.deepToString(types)); // Should return [VISA]
CreditCardType type = types[0];
type.getSecurityCodeName(); // Should return CVV
type.getSecurityCodeLength(); // Should return 3 (size of CVV)
type.getMinCardLength(); // Minimum Card length 16
type.getMaxCardLength(); // Maximum Card length 16
type.getSpaceIndices(); // Indices useful for formatting