How can Android code interface with Javascript code in a WebView?

Question

I know you can take an instance of a webview and call addJavascriptInterface(new WebAppInterface(context), "nameofinterface") to allow javascript to send data to Android Java code. But how do I go the other way? I want to tell javascript to play a video at a specific point in time when I hit the back button on my android device. Any ideas?

navid · Accepted Answer · 2016-09-14 12:33:05Z

1

webView.loadUrl("javascript:function()");

You can put it here:

@Override
public void onBackPressed() {
    // ...
}

edited Sep 14, 2016 at 12:33

navid

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answered Feb 12, 2016 at 16:06

archived

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2 Comments

Lv99Zubat Over a year ago

thanks, it'd be nice if Javascript was mentioned in the android documentation with this method.

archived Over a year ago

Afaik, this is also how you do it in most browser scripting languages. A relevant mention in the docs would be nice though

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