Foreground request

The client app must implement a mechanism to send messages using Android intents and URI calls and to receive the result in a custom URI callback.

• Foreground request originating from the client app to bring Card terminal app to foreground.

Foreground request

Using the foreground action, the user can bring to foreground Android POS App from a third-party app. For a typical foreground request, the client app must provide the following information:

Field	Description	Example	Card terminal support
scheme	The Viva's custom URL scheme, the host and the version.	'vivapayclient://pay/v1'
merchantKey	The merchant's key. For successful validation, should not be empty. Deprecated: you may pass any value.	'SG23323424EXS3'
appId	The client app ID. For successful validation, should not be empty.	'com.example.myapp'
action	Set printing settings. For successful validation, should not be empty.	'set_printing_settings'
callback	The URI callback that will handle the result. For successful validation, should not be empty.	'mycallbackscheme://result'

This action does not send back a response.

The above information elements must create a URI call, i.e.

String reqStr = "vivapayclient://pay/v1"
		+ "?merchantKey="MY_MERCHANT_KEY"
		+ "&appId=com.example.myapp"
		+ "&action=foreground"
		+ "&callback=mycallbackscheme://result";

Intent payIntent = new Intent(Intent.ACTION_VIEW, Uri.parse( reqStr));
payIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
payIntent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
startActivity(payIntent);

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