Activity代码:
package com.example.reg;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.webkit.WebView;
import com.example.reg.bean.MyObject;
public class WebViewActivity extends Activity{
private static final String tag = WebViewActivity.class.getSimpleName();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
WebView webview = (WebView) findViewById(R.id.web_view);
webview.getSettings().setJavaScriptEnabled(true);
//webview.loadUrl("http://www.baidu.com");
webview.addJavascriptInterface(new MyObject(this), "myObj");
webview.loadUrl("file:///android_asset/html/test.html");
Log.d(tag, "执行结束..");
}
}
MyObject代码:
package com.example.reg.bean;
import android.R;
import android.app.AlertDialog;
import android.content.Context;
import android.widget.Toast;
public class MyObject {
Context mContext;
public MyObject(Context mContext) {
super();
this.mContext = mContext;
}
public void showToast(String name){
Toast.makeText(mContext, name, Toast.LENGTH_LONG).show();
}
public void showList(){
new AlertDialog.Builder(mContext)
.setTitle("图书列表")
.setIcon(R.drawable.ic_btn_speak_now)
.setItems(new String[]{"xx1","xx2","xx3"}, null)
.setPositiveButton("确定", null)
.create()
.show();
}
}
html路径:
\reg\assets\html\test.html \reg 是项目名称
html代码:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title>js..调用Android..</title> </head> <body> <input type="button" value="sayHi" onclick="myObj.showToast(‘carl‘);"/> </body> </html>
如果要在本地页面中引入外部css文件则添加如下代码:
<!--引入css文件-->
<link rel="stylesheet" href="file:///android_asset/html/style.css" type="text/css"/>
时间： 2024-10-12 15:05:45