时，可以调用的主要活动的方法从web视图对象的JavaScript界面​​？或者从这个接口访问共享preferences，所以我可以读我的活动数据？我想，让我的活动知道某个特定的JavaScript行为发生。

Is is possible to call main activity's methods from the JavaScript interface of a WebView object? Or to access SharedPreferences from this interface so I could read the data with my activity? I would like to let my Activity know that a specific JavaScript action occured.

推荐答案

是的，JavaScript和应用程序之间的双向沟通​​，可以通过 WebView.addJavascriptInterface（）。检查这个例子：

Yes, two way communication between JavaScript and your application is possible through WebView.addJavascriptInterface(). Check this example:

http://android-developers.blogspot.com/2008/ 09 /使用-webviews.html