Integration with Flutter

<application
    android:name=".MainApplication"
    android:theme="@style/Theme.AppCompat.Light"
</application>

try {
    val policy = PXPolicy()
    policy.urlRequestInterceptionType = PXPolicyUrlRequestInterceptionType.NONE
    PerimeterX.start(application, "<APP_ID>", null, policy)
}
catch (exception: Exception) {
    println("failed to start. exception: $exception")
}

static const perimeterxPlatform = MethodChannel('com.my.app/perimeterx');

override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
        super.configureFlutterEngine(flutterEngine)
        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, "com.perimeterx.demo/perimeterx").setMethodCallHandler {
                call, result ->
    if (call.method == "_getPxHeaders") {
        val json = JSONObject(PerimeterX.headersForURLRequest(null) as Map<*, *>?)
        result.success(json.toString())
    }
    else if (call.method == "_handlePxResponse") {
        val handled = PerimeterX.handleResponse(call.arguments!! as String, null) { challengeResult: PerimeterXChallengeResult ->
            result.success(if (challengeResult == PerimeterXChallengeResult.SOLVED) "solved" else "cancelled")
            null
        }
        if (!handled) {
            result.success("false")
        }
    }
    else {
        result.notImplemented()
    }
}

import 'dart:async';
import 'dart:convert';
import 'package:http/http.dart' as http;

Future<void> _sendUrlRequest() async {
    try {
        final String pxHeaders = await perimeterxPlatform.invokeMethod('_getPxHeaders');
        final Map<String, String> pxHeadersMap = Map.from(json.decode(pxHeaders));
        print(pxHeadersMap);
        var url = Uri.https('my.request.com', '/my.path');
        var response = await http.get(url, headers: pxHeadersMap);
        if (response.statusCode == 403) {
            final String result = await perimeterxPlatform.invokeMethod('_handlePxResponse', response.body);
            print(result);
            /*
                check the result:
                'false' - not handled by the SDK
                'solved' - challenge solved
                'cancelled' - challenge cancelled
            */
            if (result == 'solved') {
                // challenge solved. you may retry the request here
                print("challenge solved");
            } else if (result == 'false') {
                // request finished successfully
                print("request finished successfully");
            } else if (result == 'cancelled') {
                // challenge cancelled
                print("challenge cancelled");
            }
        }
    } on PlatformException catch (e) {
        print("failed to get px's headers: '${e.message}'.");
    }
}