JS code works if launched in webView using loadUrl() but not evaluateJavascript()

Question

I need to play video in html5 video tag in Android webView. I used android method

webView.loadUrl("javascript:" + url);

previously, but decided replace it with modern method

webView.evaluateJavascript(url, null);

And I faced on issue with evaluateJavascript() method:

"Failed to execute 'play' on 'HTMLMediaElement': API can only be initiated by a user gesture."

But with loadUrl() this issue was not fired. How to play video using evaluateJavascript() and html video tag?

why? if it works with the other method use the other method. what is the real problem? — I wrestled a bear once.
– I wrestled a bear once., Commented Nov 3, 2016 at 13:26
@Pamblam evaluateJavascript() allows to get result which return JS code. loadUrl() does not allow this. — anber
– anber, Commented Nov 3, 2016 at 13:33
use a JavascriptInterface to allow your webview JS to communicate with host App.. — I wrestled a bear once.
– I wrestled a bear once., Commented Nov 3, 2016 at 13:36
@Pamblam JavascriptInterface allow to call Java methods from JS side. I need vice versa - call JS methods from Java side. — anber
– anber, Commented Nov 3, 2016 at 13:42

Amit · Accepted Answer · 2017-02-24 10:24:08Z

1

on the webview try this, should work after this:

myWebView.getSettings().setMediaPlaybackRequiresUserGesture(false);

answered Feb 24, 2017 at 10:24

Amit

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