WebSettings settings = wb_url.getSettings();        settings.setJavaScriptEnabled(true);  //支持js//    settings.setPluginState(true);  //支持插件        settings.setUseWideViewPort(false);  //将图片调整到适合webview的大小        settings.setSupportZoom(true);  //支持缩放        settings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN); //支持内容重新布局        settings.supportMultipleWindows();  //多窗口        settings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);  //关闭webview中缓存        settings.setAllowFileAccess(true);  //设置可以访问文件        settings.setNeedInitialFocus(true); //当webview调用requestFocus时为webview设置节点        settings.setBuiltInZoomControls(true); //设置支持缩放        settings.setJavaScriptCanOpenWindowsAutomatically(true); //支持通过JS打开新窗口        settings.setLoadWithOverviewMode(true); // 缩放至屏幕的大小        settings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);        settings.setLoadsImagesAutomatically(true);  //支持自动加载图片        wb_url.loadUrl(noticeUrl);        wb_url.setWebViewClient(new WebViewClient(){            @Override            public boolean shouldOverrideUrlLoading(WebView view, String url) {                //这里一定要是url  不能是网页                 view.loadUrl(url);                return true;            }                        //证书的设置  支持所有的证书            @Override            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {                handler.proceed();            }        });        ib_return.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                finish();            }        });    }    //防止退出的时候  抛Zoom异常    @Override    public void finish() {        ViewGroup view = (ViewGroup) getWindow().getDecorView();        view.removeAllViews();        super.finish();    }