刷新

[java]代码库

package com.example.day09_xlistview;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import com.example.day09_xlistview.bean.Bean;
import com.example.day09_xlistview.bean.Info;
import com.example.day09_xlistview.view.XListView;
import com.example.day09_xlistview.view.XListView.IXListViewListener;
import com.google.gson.Gson;
import com.lidroid.xutils.HttpUtils;
import com.lidroid.xutils.exception.HttpException;
import com.lidroid.xutils.http.ResponseInfo;
import com.lidroid.xutils.http.callback.RequestCallBack;
import com.lidroid.xutils.http.client.HttpRequest.HttpMethod;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;

public class MainActivity extends Activity implements IXListViewListener {
	String[] arr = new String[] { "1", "2", "3", "4", "5",

	};
	// String path =
	// "http://v.juhe.cn/weixin/query?key=b3edac6e41f3f3c84b855019e47b7ace&pno="
	// + 1;

	int i = 1;
	private XListView xListView;
	List<Info> list = new ArrayList<>();
	private MyBaseAdapter myBaseAdapter;
	Handler handler = new Handler() {

		public void handleMessage(android.os.Message msg) {

			String s = (String) msg.obj;

			Gson gson = new Gson();
			Bean bean = gson.fromJson(s, Bean.class);

			int tag = msg.arg1;

			switch (tag) {
			// 下拉刷新
			case 1:
				// 清空之前的数据
				list.clear();
				// 添加新数据
				list.addAll(bean.result.list);
				myBaseAdapter.notifyDataSetChanged();
				// 刷新适配器
				// 停止刷新
				xListView.stopRefresh();
			
				//格式化毫秒值
				SimpleDateFormat dateFormat=new SimpleDateFormat("hh:mm:ss");
				
				String format = dateFormat.format(new Date());
				
				xListView.setRefreshTime(format);
				
				break;

			// 上拉加载
			case 2:
				// 追加新数据
				list.addAll(bean.result.list);
				myBaseAdapter.notifyDataSetChanged();
				// 停止加载更多
				xListView.stopLoadMore();
				break;
			// 加载第一次的数据
			case 3:

				list.addAll(bean.result.list);

				myBaseAdapter = new MyBaseAdapter(list,MainActivity.this);

				xListView.setAdapter(myBaseAdapter);

				break;
			}

		};

	};

	private ArrayAdapter<String> arrayAdapter;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		xListView = (XListView) findViewById(R.id.xListView);
		// 开启加载更多
		xListView.setPullLoadEnable(true);
		// 设置适配器前就要有数据
		getData(3);

		// 设置xListView上拉,下拉监听
		xListView.setXListViewListener(this);

	}

	@Override
	// xListView下拉刷新监听方法
	public void onRefresh() {
		// 联网得到新数据

		getData(1);
		

	}

	@Override
	// xListView上拉加载更多监听方
	public void onLoadMore() {
		getData(2);
		
	}

	/**
	 * 请求网络数据
	 */
	private void getData(final int tag) {

		String path = null;
		// 是刷新调用的联网请求
		if (tag == 1) {

			path = "http://v.juhe.cn/weixin/query?key=b3edac6e41f3f3c84b855019e47b7ace&pno=" + 1;
			// 是加载更多调用的联网请求
		} else if (tag == 2) {

			path = "http://v.juhe.cn/weixin/query?key=b3edac6e41f3f3c84b855019e47b7ace&pno="
					+ (i += 1);
			// 加载第一次的数据
		} else if (tag == 3) {
			path = "http://v.juhe.cn/weixin/query?key=b3edac6e41f3f3c84b855019e47b7ace&pno=" + 1;

		}

		HttpUtils httpUtils = new HttpUtils();

		httpUtils.send(HttpMethod.GET, path, new RequestCallBack<String>() {

			@Override
			public void onFailure(HttpException arg0, String arg1) {

			}

			@Override
			public void onSuccess(ResponseInfo<String> arg0) {
				String result = arg0.result;

				// 把响应信息发送给handler
				Message msg = Message.obtain();

				msg.obj = result;
				msg.arg1 = tag;

				handler.sendMessage(msg);

			}
		});
	}
}