Integrating PayButton with a PAX Device

Install

minSdkVersion 17

and

compileSdkVersion 2

.

Add the repository to your project's top level

build.gradle

:

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://repo.visa.com/mpos-releases/"
        }
    }
}

Add build dependencies as classpaths:

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath "com.android.tools.build:gradle:4.1.1"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.4.31"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

Make sure the app supports Java 8 features by setting the compatibility levels in your module's

build.gradle

:

android{
    ...
    compileOptions {
        sourceCompatibility = 1.8
        targetCompatibility = 1.8
    }
    buildTypes {
        release {
            // ...
        }
        debug {
            // Required for our internal libraries
            // https://developer.android.com/studio/build/dependencies#resolve_matching_errors
            matchingFallbacks = ['release']
        }
    }
    packagingOptions {       
         exclude 'META-INF/*'
         exclude 'LICENSE.txt'
         exclude 'asm-license.txt'
    }

}

Add these exclusion rules to your module's

build.gradle

:

plugins {
    id 'com.android.application'
    id 'kotlin-android'
}

Add the libraries to the dependencies section of your module's

build.gradle

:

dependencies {
    ...
   // Starting from 2.48.0 (included), we migrated to Jetpack.
    implementation 'androidx.appcompat:appcompat:1.1.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'

    // Add these two dependencies for PAX
    implementation 'io.payworks:mpos.android.ui:2.94.0'
    implementation 'io.payworks:mpos.android.accessories.pax:2.94.0'
     }

If you want to use ProGuard with your application, make sure to add the necessary rules to your ProGuard configuration. You can find more information here.

If you see the

Accessory update required

error message, your BroadPOS P2PE version is not compatible with the PayButton SDK. To update your BroadPOS P2PE, contact Customer Support.

Update your

AndroidManifest.xml

file to enable a larger heap size by setting

android:largeHeap="true"

. This setting is required to accommodate situations in which an update of the terminals is required and bigger chunks of data are requested and transferred.

<application
        [...]
        android:largeHeap="true">
            [...]
    </application>

Update your

AndroidManifest.xml

file to enable these permissions:

<uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
    <uses-permission android:name="android.permission.CAMERA" />

    <uses-permission android:name="com.pax.permission.ICC"/>
    <uses-permission android:name="com.pax.permission.PICC"/>
    <uses-permission android:name="com.pax.permission.MAGCARD"/>
    <uses-permission android:name="com.pax.permission.PED"/>

void paymentButtonClicked() {
    MposUi ui = MposUi.initialize(this, ProviderMode.MOCK,
            "merchantIdentifier", "merchantSecretKey");

    ui.getConfiguration().setSummaryFeatures(EnumSet.of(
            // Add this line, if you do want to offer Printing Customer Receipt
            MposUiConfiguration.SummaryFeature.PRINT_CUSTOMER_RECEIPT,
            // Add this line, if you do want to offer Printing Merchant Receipt
            MposUiConfiguration.SummaryFeature.PRINT_MERCHANT_RECEIPT,
            // Add this line, if you do want to offer Sending Receipt via Email
            MposUiConfiguration.SummaryFeature.SEND_RECEIPT_VIA_EMAIL)
    );

    // If it's a MOCK card reader, please use the code as below
    AccessoryParameters accessoryParameters = new AccessoryParameters.Builder(AccessoryFamily.MOCK)
                                                            .mocked()
                                                            .build();

    /* If it's a TEST card reader, please use the code as below
    AccessoryParameters accessoryParameters = new AccessoryParameters.Builder(AccessoryFamily.PAX)
                .integrated()
                .build();*/

    //Add this line to enable RNIB accessibility mode which allows blind and visually impaired people to pay with ease.
    ui.getConfiguration().setAccessibilityModeOption(MposUiConfiguration.AccessibilityModeOption.OPTION_VISIBLE);

    // Add this line to set terminal parameters
    ui.getConfiguration().setTerminalParameters(accessoryParameters);

    // Add this line to set printer parameters
    ui.getConfiguration().setPrinterParameters(accessoryParameters);

    // Add this line if you would like to collect the customer signature on the receipt (as opposed to the digital signature)
    // ui.getConfiguration().setSignatureCapture(MposUiConfiguration.SignatureCapture.ON_RECEIPT);


    TransactionParameters transactionParameters = new TransactionParameters.Builder()
                                                            .charge(new BigDecimal("5.00"), io.mpos.transactions.Currency.EUR)
                                                            .subject("Bouquet of Flowers")
                                                            .customIdentifier("yourReferenceForTheTransaction")
                                                            .build();

    Intent intent = ui.createTransactionIntent(transactionParameters);
    startActivityForResult(intent, MposUi.REQUEST_CODE_PAYMENT);
}

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

    if (requestCode == MposUi.REQUEST_CODE_PAYMENT) {
        if (resultCode == MposUi.RESULT_CODE_APPROVED) {
            // Transaction was approved
            Toast.makeText(this, "Transaction approved", Toast.LENGTH_LONG).show();
        } else {
            // Card was declined, or transaction was aborted, or failed
            // (e.g. no internet or accessory not found)
            Toast.makeText(this, "Transaction was declined, aborted, or failed",
                    Toast.LENGTH_LONG).show();
        }
        // Grab the processed transaction in case you need it
        // (e.g. the transaction identifier for a refund).
        // Keep in mind that the returned transaction might be null
        // (e.g. if it could not be registered).
        Transaction transaction = MposUi.getInitializedInstance().getTransaction();
    }
}

MiscSettings.setStatusBarVisible(getApplicationContext(), true/false);
MiscSettings.setNavigationBarVisible(getApplicationContext(), true/false);