Androdi注入js实现网页放大

来源：互联网发布：凡科微传单软件下载编辑：程序博客网时间：2024/06/02 04:18

 // 注入js函数监听      private void addImageClickListner() {          // 这段js函数的功能就是，遍历所有的img几点，并添加onclick函数，函数的功能是在图片点击的时候调用本地java接口并传递url过去          webview.loadUrl("javascript:(function(){" +          "var objs = document.getElementsByTagName(\"img\"); " +                   "for(var i=0;i<objs.length;i++)  " +           "{"                  + "    objs[i].onclick=function()  " +           "    {  "                   + "        window.imagelistner.openImage(this.src);  " +           "    }  " +           "}" +           "})()");      }

 // js通信接口      public class JavascriptInterface {            private Context context;            public JavascriptInterface(Context context) {              this.context = context;          }            public void openImage(String img) {                         Intent intent = new Intent();            ArrayList<String> picList = new ArrayList<String>();            picList.add(img);            intent.putExtra("picList", picList);                        intent.setClass(context, ExpandPicActivity.class);              context.startActivity(intent);                     }      }

在webview的onPageFinished()中注入js

@Overridepublic void onPageFinished(WebView view, String url) {// TODO Auto-generated method stubsuper.onPageFinished(view, url);addImageClickListner();new Thread(GetComment).start();}

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