webview的适配方案：

	1.支持js：settings.setJavaScriptEnabled(true);2.跳转到外部浏览器下载：

 webView.setDownloadListener(new DownloadListener(){@Overridepublic void onDownloadStart(String s, String s1, String s2, String s3, long l){Intent intent = new Intent(Intent.ACTION_VIEW);intent.addCategory(Intent.CATEGORY_BROWSABLE);intent.setData(Uri.parse(s));context.startActivity(intent);}});

	3.显示https的图片：

//1if(Build.VERSION.SDK_INT>=Build.VERSION_CODES.LOLLIPOP){webview.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);}//2.
webView.setWebViewClient(new WebViewClient() {@Overridepublic void onReceivedSslError(WebView view,SslErrorHandler handler, SslError error) {// TODO Auto-generated method stub// handler.cancel();// Android默认的处理方式handler.proceed();// 接受所有网站的证书// handleMessage(Message msg);// 进行其他处理}
});

	4.微信支付提示商家参数异常，需要设置referer：

 @Overridepublic boolean shouldOverrideUrlLoading(final WebView view, String url){//用自己的方式获取refererString referer = WxPayRefererUtils.getPayRefererUrl(url);Map<String, String> extraHeaders = new HashMap<String, String>();extraHeaders.put("Referer", referer );view.loadUrl(url, extraHeaders);}

	5.支持上传文件，图片等：需要重写 openFileChooser 方法6.调用网页中的js方法：webview.loadUrl("javascript:shareApp()");   shareApp为方法名7.遍历网页中的标签并且设置点击事件：

WebViewClient myClient = new WebViewClient(){@Overridepublic void onPageFinished(WebView webView, String s){super.onPageFinished(webView, s);webView.loadUrl("javascript:(function(){" +"var objs = document.getElementsByTagName(\"img\"); " +"for(var i=0;i<objs.length;i++) " +"{"+ " objs[i].οnclick=function() " +" { "+ "  window.imagelistener.openImage(this.src); " +" } " +"}" +"})()"); }};public class JavascriptInterface{@android.webkit.JavascriptInterfacepublic void openImage(String imageUrl){Intent intent = new Intent();intent.putExtra("image_path", imageUrl);startActivity(intent);}}

欢迎补充