(四) Android Webview 深入 (下)

刺骨的言语ヽ痛彻心扉 2022-08-13 12:46 137阅读 0赞

本文主要介绍一下，如何在listview中加入webview，并且实现下拉刷新，效果如图：

![Center][]

废话不多说，直接过程：

1.mainActivity布局文件：

2 .mainActivity主界面java代码：

package com.happy.demo;
 
 import java.util.ArrayList;
 import java.util.List;
 
 import android.app.Activity;
 import android.os.Bundle;
 import android.os.Handler;
 
 import com.happy.demo.adapter.MyAdapter;
 import com.happy.demo.xlistview.XListView;
 import com.happy.demo.xlistview.XListView.IXListViewListener;
 
 public class MainActivity extends Activity implements IXListViewListener {
 
 	private XListView xlv_list;
 	private List<String> lists = new ArrayList<String>();
 	private MyAdapter adapter;
 
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 		setContentView(R.layout.activity_main);
 		xlv_list = (XListView) this.findViewById(R.id.xlv_list);
 		lists.add("http://www.qq.com");
 		adapter = new MyAdapter(lists, MainActivity.this);
 		xlv_list.setAdapter(adapter);
 		xlv_list.setXListViewListener(this, 0);
 		xlv_list.setPullLoadEnable(false);
 		xlv_list.setRefreshTime();
 	}
 
 	@Override
 	public void onRefresh(int id) {
 		new Handler().postDelayed(new Runnable() {
 			
 			@Override
 			public void run() {
 				xlv_list.setRefreshTime();
 				xlv_list.stopRefresh();
 			}
 		}, 3000);
 	}
 
 	@Override
 	public void onLoadMore(int id) {
 		// TODO Auto-generated method stub
 		
 	}
 
 }

3.adapter适配器item布局xml代码：

<?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical" >
 
 <WebView
 android:id="@+id/wb_webView"
 android:layout_width="match_parent"
 android:layout_height="match_parent" />
 
 </LinearLayout>

4.adapter适配器java代码：

package com.happy.demo.adapter;
 
 import java.util.List;
 
 import com.happy.demo.R;
 
 import android.content.Context;
 import android.view.View;
 import android.view.ViewGroup;
 import android.webkit.WebView;
 import android.widget.BaseAdapter;
 
 /**
 * @author zhonglq
 * @version V1.0
 * @Date 2014-10-25 下午10:53:37
 */
 public class MyAdapter extends BaseAdapter {
 
 	private List<String> lists;
 	private Context context;
 
 	public MyAdapter(List<String> lists, Context context) {
 		this.lists = lists;
 		this.context = context;
 	}
 
 	@Override
 	public int getCount() {
 		return lists.size();
 	}
 
 	@Override
 	public Object getItem(int position) {
 		return lists.get(position);
 	}
 
 	@Override
 	public long getItemId(int position) {
 		return position;
 	}
 
 	@Override
 	public View getView(int position, View convertView, ViewGroup parent) {
 		if (convertView == null) {
 			convertView = View.inflate(context, R.layout.list_item, null);
 		}
 		WebView wb_webView = (WebView) convertView
 				.findViewById(R.id.wb_webView);
 		setWebView(lists.get(position), wb_webView);
 		return convertView;
 	}
 
 	private void setWebView(String url, WebView webView) {
 		webView.loadUrl(url);
 
 	}
 
 }

这样就可以实现在listview中嵌入webView并且实现下拉刷新的效果了，代码并不多，并且比较好懂，就不多作解释了。

[Center]: /images/20220810/36880962a1e0489ca97e61580a7ebaf5.png