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android監聽html事件

直接放例子,不解釋

html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文件</title>
  <script type="text/javascript">

     function init()
           {
          AndroidFunction.showToast("你按了取消,那就是返回false");
           }
  </script>


</head>


<body>
<form id="form1" name="form1" method="get" action="" >
  <input type="submit" name="button" id="button" value="提交" onClick="init()" />
</form>
</body>
</html>

ANDROID端用webview 

mWebView.getSettings().setJavaScriptEnabled(true); 

mWebView.addJavascriptInterface(mMyJavaScriptInterface, "AndroidFunction");

class MyJavaScriptInterface{
Context context;
String resWebSite;


public MyJavaScriptInterface(Context context, String resWebSite) {
// TODO Auto-generated constructor stub
this.context = context;
this.resWebSite = resWebSite;
}
@JavascriptInterface
public void showToast(String webMessage){    
final String msgeToast = webMessage;    
new Handler().post(new Runnable() {
@Override
public void run() {
// This gets executed on the UI thread so it can safely modify Views
//myTextView.setText(msgeToast);
Toast.makeText(getActivity(), "test", Toast.LENGTH_SHORT).show();
}
});


}

}