How to call functions in android and iOS swift from javascript in similar way

Question

I am trying to call functions in android and iOS Swift(WKWebview)from javascript.

For Android:

public class WebAppInterface {

    WebAppInterface(Context c) {
        mContext = c;
    }

    @JavascriptInterface
    public void postMessage(String message) {
        Log.v(TAG, "message ----"+message);
        Toast.makeText(mContext, message, Toast.LENGTH_SHORT).show();

    }
}

webView.addJavascriptInterface(new WebAppInterface(mContext), "appInterface");

JavaScript call For Android:

window.appInterface.postMessage("Hello);

Javascript call for iOS:

window.webkit.messageHandlers.appInterafce.postMeesage("Hello");

So, here we are making different calls from javascript for android and iOS. Is it possible to call functions in both android and iOS in one single way?

Thanks.

adamfowlerphoto · Accepted Answer · 2017-12-15 10:48:42Z

33

Wrap them both up in a single function?

function postAppMessage(msg) {
    if (window.webkit != undefined) {
        if (window.webkit.messageHandlers.appInterface != undefined) {
            window.webkit.messageHandlers.appInterface.postMessage(msg)
        }
    }
    if (window.appInterface != undefined) {
        window.appInterface.postMessage(msg)
    }
}

answered Dec 15, 2017 at 10:48

adamfowlerphoto

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2 Comments

Waseem Over a year ago

I spent a whole day to find this simple answer for my same need. You saved my second day.

user1090751 Over a year ago

whats the swift equivalent for postMessage function?

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