Android WebView JS交互-优快云博客

本文链接：https://blog.youkuaiyun.com/caofeilong20941/article/details/8083315

Activity页面代码

public class main extends Activity {
/** Called when the activity is first created. */

private WebView wv;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

wv = (WebView) this.findViewById(R.id.webView1);
wv.getSettings().setJavaScriptEnabled(true); //设置web页面可以加载js
wv.addJavascriptInterface(new testjs(), "test"); //想文本页面中传递js
wv.loadUrl("file:///android_asset/test.html");//家加载web页面
wv.setFocusable(true);

}

private class testjs { //定义一个传入web页面值得类
public String getstring() {
Log.v("!", "aa");
return "aaaaate/st";
}
}
}

web页面代码将文本页面放在android的assets目录下

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>

<script>
function d (ref){
alert(ref);
var feilogn= ref.split("/");
return feilogn;
}
function a (){

var referef= test.getstring(); 得到class 类中传入的字符串