Initialization

The method for initializing the Wepin Android Widget Library is as follows.

import com.wepin.android.widgetlib.WepinWidget

Before creating an instance of WepinWidget, please pass the app’s Activity Context, the app ID, and the app key assigned after app registration to the WepinWidgetParams object as shown below.

val wepinWidgetParams =  WepinWidgetParams(
            context = this,
            appId = "your-wepin-app-id",
            appKey = "your-wepin-app-key"
        )

Please create a WepinWidget instance by passing the previously created WepinWidgetParams.

val wepinWidget = WepinWidget(wepinPinParams)

After creating the WepinWidget instance, call the initialize method to complete the initialization.

val res = wepinWidget.initialize(attributes)

parameters

atrributes <WepinWidgetAttributes>

• defualtLanguage <String> The default language setting for the Widget screen is 'en'. Currently supported languages are 'ko', 'en', and 'ja'.

• defualtCurrency <String> The default currency setting for the Widget screen is 'USD'. Currently supported currencies are 'KRW', 'USD', and 'JPY'.

Return value

CompletableFuture <Boolean> Returns true if successful, and false if it fails.

Example

Java

public class MainActivity extends ComponentActivity {
    private WepinWidget wepinWidget;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_example_main);

        initView();

        // Initialize Wepin PIN Pad Library 
        WepinWidgetParams wepinWidgetParams = new WepinWidgetParams(
            this,
            "your-wepin-app-id",
            "your-wepin-app-key"
        );
        wepinWidget = new WepinWidget(wepinWidgetParams);
        
        WepinWidgetAttributes attributes = new WepinWidgetAttributes("en", "USD);
        CompletableFuture<InfResponse> res = wepinPin.initialize(attributes);
        if (res != null) {
            res.whenComplete((infResponse, error) -> {
                if (error == null) {
                    System.out.println(infResponse);
                } else {
                    System.out.println(error);
                }
            });
        }
        // ...
    }
}

Kotlin

class MainActivity : ComponentActivity() {
    private lateinit var wepinWidget: WepinWidget
    override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)

        setContentView(R.layout.activity_example_main)
    
        initView()
        
        // Initialize Wepin PIN Pad Libary 
        val wepinWidgetParams =  WepinWidgetParams(
            context = this,
            appId = 'your-wepin-app-id',
            appKey = 'your-wepin-app-key'
        )
        wepinWidget = WepinWidget(wepinWidgetParams)       
        var attributes = WepinWidgetAttributes("en", "USD")
        val res = wepinWidget.initialize(attributes)
        res?.whenComplete { infResponse, error ->
          if (error == null) {
            println(infResponse)
          } else {
            println(error) 
          }
      }        
    // ...
}

isInitialized

You can use the isInitialized method to check if the WepinPin instance has been successfully initialized.

The return values are as follows

• <Boolean> Returns true if initialization was successful and false if it failed.

Example

Java

if(wepinWidget.isInitialized()){
    // Success to initialize WepinPin
}

Kotlin

if(wepinWidget.isInitialized()){
    // Success to initialize WepinPin
}

changeLanguage

wepinWidget.changeLanguage("ko")

Changes the language displayed on the Widget screen. Currently, only 'ko', 'en', and 'ja' are supported.

Parameters

• language <String>

Return value

• CompletableFuture <Boolean> Returns true if successful and false if it fails.

Example

Java

wepinWidget.changeLanguage("ko").whenComplete((res, err) -> {
    if (err == null) {
        System.out.println(res);
    } else {
        System.out.println(err);
    }
});

Kotlin

wepinWidget.changeLanguage("ko").whenComplete{ res, err ->
    if (err == null) {
      println(res)
    } else {
      println(err)
    }
}