1. 自动播放video，H5的video标签

webView.getSettings().setMediaPlaybackRequiresUserGesture(false);		webView.setWebViewClient(new WebViewClient() {			@Override			public void onPageFinished(WebView arg0, String arg1) {				// TODO Auto-generated method stub				super.onPageFinished(arg0, arg1);				loadJs("button", "javascript:showmovie()");			}		});		webView.loadUrl(url);