(四) Android Webview 深入 (下)

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：

废话不多说，直接过程：

1.mainActivity布局文件：

<span style="font-size:14px;"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <com.happy.demo.xlistview.XListView
        android:id="@+id/xlv_list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="#f5f5f5"
        android:divider="#00000000"
        android:footerDividersEnabled="false"
        android:headerDividersEnabled="false"
        android:listSelector="#00000000" >
    </com.happy.demo.xlistview.XListView>

</RelativeLayout></span>

2.mainActivity主界面java代码：

<span style="font-size:14px;">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

	}

}</span>

3.adapter适配器item布局xml代码：

<span style="font-size:14px;"><?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></span>

4.adapter适配器java代码：

<span style="font-size:14px;">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);

	}

}</span>

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。