How to call JS from native Java code?

Question

How can I call a simple event or execute a JavaScript function in native Android code with Cordova?

I tried

    public void notificationRecieved(String heading,String news){
        try{
            if(webview!=null){
                Log.i("PUSHPARSE","in Notification Received Event");
                //webview.loadUrl("javascript:alert('URLcall')");
                webview.sendJavascript("alert('CAlling from Java')");
            }   

        }catch(Exception e1){
            Log.e("PUSHPARSE",e1.getMessage(),e1);
        }

    }

I am not able to get any notification or alert.

Update

Logcat shows I/PUSHPARSE( 2039): in Notification Received Event

Tried doing webview.loadUrl("http://www.google.com");

the logs show

>>> loadUrl(http://www.google.com)

W/CordovaWebView( 2039): CordovaWebView.init() was not called. This will soon be required.

D/CordovaWebView( 2039): CordovaWebView is running on device made by: unknown

are you sure webview is the cordova webview? and it is initialized? that code should work, or try with webview.loadUrl("javascript:console.log('test');"); and look into logcat to see if the log appears — jcesarmobile
– jcesarmobile, Commented Feb 3, 2015 at 12:13
I did that.. still no output. is there any other way to dispatch or call an event from Java to JS.? — Incpetor
– Incpetor, Commented Feb 3, 2015 at 12:31
is the Log.i("PUSHPARSE","in Notification Received Event"); being displayed on the log? — jcesarmobile
– jcesarmobile, Commented Feb 3, 2015 at 13:22
yes that gets logged. but just after the call it vanishes inside Cordova call. No exception or trace. — Incpetor
– Incpetor, Commented Feb 3, 2015 at 13:27

KubixSoftware · Accepted Answer · 2015-02-03 11:09:00Z

1

I guess alert is not working in webview try document.write or console.log for see

Thanks

answered Feb 3, 2015 at 11:09

KubixSoftware

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2 Comments

Incpetor Over a year ago

thanks for reply, what do you want me to write in document? a script for alert? or so?

KubixSoftware Over a year ago

i guess alert('x') not working on webview may be it works webview.loadUrl("javascript:document.write('URLcall')"); or webview.sendJavascript("javascript:document.write('URLcall')"); and console.log can writes your eclipse console

Iron · Accepted Answer · 2015-02-03 15:30:23Z

0

May be you can use the pushPlugin https://github.com/phonegap-build/PushPlugin and use method function onNotification(e) ?

answered Feb 3, 2015 at 15:30

Iron

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