Android Webview中解决H5的音视频不能自动播放的问题

web_view.setWebViewClient(new WebViewClient() {
                // 解决H5的音视频不能自动播放的问题
                @Override
                public void onPageFinished(WebView view, String url) {
                    super.onPageFinished(view, url);
                    web_view.loadUrl("javascript:(function() { "
                            + "var videos = document.getElementsByTagName('audio');"
                            + " for(var i=0;i<videos.length;i++){videos[i].play();}})()");
                }

                @Override
                public void onPageStarted(WebView view, String url,
                        Bitmap favicon) {

                    super.onPageStarted(view, url, favicon);
                }

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
                web_view.getSettings().setMediaPlaybackRequiresUserGesture(false);
            }