RN Custom Webview 아임포트

package io.bagstation.bagstation;

import android.util.Log;
import android.app.Activity;
import android.os.Build;
import android.webkit.WebViewClient;
import android.webkit.WebView;
import android.content.Intent;
import android.content.ActivityNotFoundException;
import android.net.Uri;

import com.facebook.react.uimanager.ThemedReactContext;
import com.facebook.react.module.annotations.ReactModule;
import com.facebook.react.views.webview.ReactWebViewManager;

import com.facebook.react.uimanager.ThemedReactContext;
import com.facebook.react.modules.core.DeviceEventManagerModule.RCTDeviceEventEmitter;

import java.net.URISyntaxException;

@ReactModule(name = CustomWebViewManager.REACT_CLASS)
public class CustomWebViewManager extends ReactWebViewManager {
    public static final String REACT_CLASS = "RCTCustomWebView";

    protected static class CustomWebViewClient extends ReactWebViewClient {
        protected ThemedReactContext reactContext;
        protected Activity activity;

        private static final String DEFAULT_REDIRECT_URL_WHEN_SUCCESS = "https://service.iamport.kr/payments/success";
        private static final String DEFAULT_REDIRECT_URL_WHEN_FAILURE = "https://service.iamport.kr/payments/fail";

        public CustomWebViewClient(ThemedReactContext reactContext, Activity activity) {
            this.reactContext = reactContext;
            this.activity = activity;
        }

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            if (isPaymentOver(url)) { // 결제시도가 종료된 후, 콜백이 설정되었으면, 리액트 네이티브로 event dispatch
                reactContext
                        .getJSModule(RCTDeviceEventEmitter.class)
                        .emit("message", url);

                return false;
            }

            if (isUrlStartsWithProtocol(url)) return false;

            Intent intent = null;
            try {
                intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME); // Intent URI 처리
                if (intent == null) return false;

                startNewActivity(intent.getDataString());

                return true;
            } catch (URISyntaxException e) {
                return false;
            } catch (ActivityNotFoundException e) { // PG사에서 호출하는 url에 package 정보가 없는 경우
                String scheme = intent.getScheme();
                if (isPaymentSchemeNotFound(scheme)) return true;

                String packageName = intent.getPackage();
                if (packageName == null) return false;

                startNewActivity("market://details?id=" + packageName);
                return true;
            }
        }

        /* url이 https, http 또는 javascript로 시작하는지 체크 */
        private boolean isUrlStartsWithProtocol(String url) {
            if (url.startsWith("https://") || url.startsWith("http://") || url.startsWith("javascript:")) return true;
            return false;
        }

        /* 결제가 종료되었는지 여부를 판단한다 */
        private boolean isPaymentOver(String url) {
            if (
                    url.startsWith(DEFAULT_REDIRECT_URL_WHEN_FAILURE) ||
                            url.startsWith(DEFAULT_REDIRECT_URL_WHEN_SUCCESS)
            ) return true;

            return false;
        }

        protected void startNewActivity(String parsingUri) {
            Uri uri = Uri.parse(parsingUri);
            Intent newIntent = new Intent(Intent.ACTION_VIEW, uri);

            activity.startActivity(newIntent);
        }

        /* ActivityNotFoundException에서 market 실행여부 확인 */
        protected boolean isPaymentSchemeNotFound(String scheme) {
            return false;
        }
    }

    protected static class CustomWebView extends ReactWebView {
        public CustomWebView(ThemedReactContext reactContext) {
            super(reactContext);
        }
    }

    @Override
    protected ReactWebView createReactWebViewInstance(ThemedReactContext reactContext) {
        return new CustomWebView(reactContext);
    }

    @Override
    public String getName() {
        return REACT_CLASS;
    }

    @Override
    protected void addEventEmitters(ThemedReactContext reactContext, WebView view) {
        view.setWebViewClient(new CustomWebViewClient(reactContext, reactContext.getCurrentActivity()));

    }

}