Android本地调用JS

webView.loadUrl("javascript:showMsg()");

 

JS调用Android本地代码

Android本地代码

webView.getSettings().setJavaScriptEnabled(true);
webView.addJavascriptInterface(new MyJSObject(), "MyJSObject");

 

 

class MyJSObject{
        /**     
         * web页面js调用本地方法
         *   
         * void  
         */
        @JavascriptInterface
        public void cameraShow(){
            Toast.makeText(MainActivity.this, "JS调用本地代码成功", Toast.LENGTH_SHORT).show();
        }
    }

html代码

<%@page language="java" contentType="text/html; charset=utf8"%>
<!DOCTYPE HTML>
<html>
  <head>
  </head>
  <script type="text/javascript">
    function cameraShow(){
        window.MyJSObject.cameraShow();  
    }
<%@page language="java" contentType="text/html; charset=utf8"%>
<!DOCTYPE HTML>
<html>
  <head>
  </head>
  <script type="text/javascript">
    function cameraShow(){
        window.MyJSObject.cameraShow();  
    }　　function showMsg(){
		　　　　document.getElementById("cxt").value="android...";
	　　}</script><body>
    This is my JSP page. <br>
    <button type="button" onclick="cameraShow()">播放</button>
  </body>
</html>