MDK Webview extension issue with JavaScript alerts for iOS MDK 2405

[crayabharam]

Hello Experts,

I have created an extension of MDK 2405. I am using iOS native WKWebview, in the extension.

Earlier version of MDK SDK Version: 2105. This nativescript version was using TNS-CORE-MODULES.

The latest version of MDK 2405.* is based on Nativescript Version 8.6.5. TNS-CORE-MODULES is deprecated and using @nativescript/core.

iOS native WKWebview with custom WKWebView is working fine with TNS-CORE-MODULES.

WKWebView overridden methods are not getting triggered with the MDK 2405.* which is based on @nativescript/core.

Please suggest how to use this WKWebView with the latest version of MDK 2405* .

We are unable to get a callback from JS 

Below is the code snippet for iOS Native WebView in my extension working fine for MDK Version 2405* 

const messageHandler = FormMessageHandler.initWithOwner(this);

let wkcontent = WKUserContentController.new();

wkcontent.addScriptMessageHandlerName(messageHandler, "nativeProcess");

let webConfig = WKWebViewConfiguration.new();

webConfig.userContentController = wkcontent;

this._webView = WKWebView.new().initWithFrameConfiguration(CGRectMake(0, 0, 100, 600), webConfig);

this._webView.navigationDelegate = this.wkNavigationDelegate;

this._layout.addArrangedSubview(this._webView);

export class FormMessageHandler extends NSObject implements WKScriptMessageHandler {

public static ObjCProtocols = [WKScriptMessageHandler];

public contextField;

private owner: MySlider;

public static initWithOwner(owner: MySlider): FormMessageHandler {

const delegate = <FormMessageHandler>FormMessageHandler.new();

delegate.owner = owner;

return delegate;

}

public userContentControllerDidReceiveScriptMessage(userContentController: WKUserContentController, webViewMessage: WKScriptMessage) {

console.log("Reached");

console.log(webViewMessage.body);

let isFrom = webViewMessage.body.objectForKey("isfrom");

if (isFrom == "formSave" || isFrom == "formDraft") {

let hexaString = this.stringToHex(webViewMessage.body.objectForKey("filledform"));

var saveasString = "false";

if (isFrom == "formDraft") {

saveasString = "true"

}

this.owner.postForm(hexaString, saveasString);

}

else if (isFrom == "formAttach") {

// Service call for posting signature

var saveasString = "false";

if (isFrom == "formDraft") {

saveasString = "true"

}

this.owner.attachmentData = webViewMessage.body;

this.owner.appendAttachments(webViewMessage.body);

}

}

stringToHex(str) {

var result = '';

for (var i = 0; i < str.length; i++) {

result += str.charCodeAt(i).toString(16);

}

return result;

}

}

export class WKNavigationDelegateNotaImpl extends NSObject implements WKNavigationDelegate {

public static ObjCProtocols = [WKNavigationDelegate];

private owner: MySlider;

// const handlerClass = new MySlider();

// public handlerClass = MySlider.init1();

public static initWithOwner(owner: MySlider): WKNavigationDelegateNotaImpl {

const delegate = <WKNavigationDelegateNotaImpl>WKNavigationDelegateNotaImpl.new();

delegate.owner = owner;

return delegate;

}

public webViewDidFinishNavigation(webView: WKWebView, navigation: WKNavigation) {

console.log("Load Finished");

this.owner.webViewloadFinished();

}

}