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将修正好的Xlistview镶嵌进项目中

       最近公司项目中要用到上拉加载更多，下拉刷新功能。githup中提供现成的Xlistview，只是xlistview中在没有加载满数据的时候，上拉加载的时候会出现一些小问题，不能及时加载会卡住，这个需要在xlistview中将if (getLastVisiblePosition() == mTotalItemCount - 1) （304行左右）中的if 前面是else去掉，这样就可以用了 修改好的 xlistview下载地址http://download.csdn.net/detail/u012303938/8447547，有了xlistview我们就开始往项目中镶入吧。

       首先将XListView，XListViewFooter，XListViewHeader拷贝到类中，将list_item，xlistview_footer,xlistview_header放进laydout中，将values中的strings内的内容相应的考呗进项目中，将drawable中的xlistview_arrow相应的考呗到项目中，接下来就是修改最重要的MainActivity了。

       要用到xlistview所以你的activity_main中的listview必须用类名下的xlistview  示例如下：

<span style="font-size:14px;"><com.tyb.tools.XListView
        android:id="@+id/listview"
       android:layout_width="fill_parent"
        android:layout_height="match_parent"
        android:cacheColorHint="#00000000" >
  </com.tyb.tools.XListView></span>

     在MainActivity  中去实现IXListViewListener有两个方法onLoadMore（）上拉加载更多，onRefresh（）下拉刷新，

cleanData();
		pross.setVisibility(View.VISIBLE);
		loadData();
		listview.setPullLoadEnable(true);

cleanData();用来清除数据，pross.setVisibility(View.VISIBLE);进入列表页面进步条可见，loadData();访问网络获取数据，listview.setPullLoadEnable(true);设置listview可滑动。我先把自己项目中的一个上拉加载更多和下拉刷新的activity放上来讲解。

package com.tyb.custom;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import com.tyb.R;
import com.tyb.tools.BaseActivity;
import com.tyb.tools.GetPost;
import com.tyb.tools.GlobalConts;
import com.tyb.tools.RequestParams;
import com.tyb.tools.XListView;
import com.tyb.tools.XListView.IXListViewListener;

public class CustomActivity extends BaseActivity implements IXListViewListener{
	private final String PREFERENCES_NAME = GlobalConts.SHAREPREFRENCE_NAME;
	private String uid="",cid="",pwd="";
	private customdata customdata;
	private XListView listview;
	private ArrayList<Map<String, Object>> list = new ArrayList<Map<String, Object>>();;
	private ImageView btn_back,btn_up;
	private String name="";
	private RelativeLayout data;
	private TextView tv_nodata;
	private Handler mHandler;
	private int page=1;
	private MyAdapter adapter;
	private ProgressBar pross;
	private Context context;
	private View view;
	private EditText et_name,et_phoe;
	private boolean ifloadsearch=false;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState,R.layout.custom_main);
		SharedPreferences preferences = getSharedPreferences(
				PREFERENCES_NAME, Activity.MODE_PRIVATE);
		cid=preferences.getString("cid", "");
		uid=preferences.getString("uid", "");
		pwd=preferences.getString("pwd", "");
		
		if(GlobalConts.isNetworkAvailable(this)){
			data.setVisibility(View.GONE);
		}else{
			data.setVisibility(View.VISIBLE);
			tv_nodata.setText("请确认连接网络!");
			return ;
		}
		cleanData();
		pross.setVisibility(View.VISIBLE);
		loadData();
		listview.setPullLoadEnable(true);
	}
	private void cleanData() {
		// TODO Auto-generated method stub
		ifloadsearch=false;
		list.clear();
		customdata=new customdata();
		customdata.setLinkman("");
		customdata.setMob("");
		customdata.setPageall("1");
		customdata.setCurrentpage("1");
		page=1;
	}
	private void loadData() {
		// TODO Auto-generated method stub
		/*
		 * http://192.168.0.253:8023/port/custom.aspx?
		 * cid=001&user=super&pwd=123&action=list
		 * &pagenum=&cno=&cname=&linkman=&mob=&
		 * point=&address=&vtime=2015-02-11&content=
		 * &nexttime=2015-02-12&nextcontent=&attention=&vstime=
		 * 2015-02-11&vetime=2015-02-11
		 */
		RequestParams params=new RequestParams();
		params.put("cid", cid);
		params.put("user", uid);
		params.put("pwd", pwd);
		params.put("pagenum", customdata.getCurrentpage());
		params.put("linkman", customdata.getLinkman());
		params.put("mob", customdata.getMob());
		params.put("action", "list");
		
		new GetLodeTask().execute(params.toString());

	}
	class GetLodeTask extends AsyncTask<String, String, String>{

		@Override
		protected String doInBackground(String... arg0) {
			// TODO Auto-generated method stub
			GetPost getPost=new GetPost();
			try {
				return getPost.urlPost(arg0[0], getPost.URL_CUSTOM);
			} catch (Exception e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			return "4";
		}

		@Override
		protected void onPostExecute(String result) {
			// TODO Auto-generated method stub
			super.onPostExecute(result);
			try {
				if(result.equals("4"))
				{    
					pross.setVisibility(View.GONE);
					Toast.makeText(CustomActivity.this, R.string.conn, 1).show();
				}
				else{
					pross.setVisibility(View.GONE);
					BindAdapter(result);
				}

			} catch (JSONException e) {
				e.printStackTrace();
			}
		}

	}
	@Override
	public void findViews() {
		// TODO Auto-generated method stub
		context=this;
		btn_up=(ImageView)findViewById(R.id.btn_up);
		pross=(ProgressBar) findViewById(R.id.pross);
		tv_nodata=(TextView) findViewById(R.id.tv_nodata);
		data=(RelativeLayout) findViewById(R.id.data);
		listview=(XListView) findViewById(R.id.listview);
		btn_back=(ImageView) findViewById(R.id.btn_back);
		
	}

	@Override
	public void addListeners() {
		// TODO Auto-generated method stub
		btn_up.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				view=View.inflate(context, R.layout.custom_search, null);
				et_name=(EditText) view.findViewById(R.id.linkman);
				et_phoe=(EditText) view.findViewById(R.id.mob);
				new AlertDialog.Builder(context).setTitle("客户列表查询")
				.setView(view).setNegativeButton("取消", null).setPositiveButton("确定", new AlertDialog.OnClickListener() {
					
					@Override
					public void onClick(DialogInterface arg0, int arg1) {
						// TODO Auto-generated method stub
						String mob=et_phoe.getText().toString();
					    String linkman=et_name.getText().toString();
					    customdata.setLinkman(linkman);
					    customdata.setMob(mob);
					    list.clear();
					    loadData();
					    ifloadsearch=true;
					}
				}).create().show();
			}
		});
		btn_back.setOnClickListener(new OnClickListener() {
			
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub
				finish();
			}
		});
	}

	protected void BindAdapter(String result) throws JSONException {
		// TODO Auto-generated method stub
		JSONObject jsonObject = new JSONObject(result.toString());
		if ("success".equals(jsonObject.getString("flag"))) {
			onLoad();
			data.setVisibility(View.GONE);
			name=jsonObject.getString("ename");
			JSONArray array = jsonObject.getJSONArray("Custom");
			customdata.setPageall(jsonObject.getString("pageall"));
			int l = array.length();
			
			for (int i = 0; i < l; i++) {
				Map<String, Object> map = new HashMap<String, Object>();
				map.put("id", array.getJSONObject(i).getString("id"));
				map.put("CustomNo", array.getJSONObject(i).getString("CustomNo"));
				map.put("Address", array.getJSONObject(i).getString("Address"));
				map.put("Custom", array.getJSONObject(i)
						.getString("Custom"));
				map.put("LinkMan", array.getJSONObject(i)
						.getString("LinkMan"));

				map.put("Mobile", array.getJSONObject(i).getString("Mobile"));

				map.put("CustomGrade", array.getJSONObject(i)
						.getString("CustomGrade"));
				list.add(map);
			}
			adapter = new MyAdapter(this, list);
			listview.setAdapter(adapter);
			adapter.notifyDataSetChanged();
			listview.setXListViewListener(this);
			mHandler = new Handler();
			listview.setOnItemClickListener(new OnItemClickListener() {

				@Override
				public void onItemClick(AdapterView<?> arg0, View arg1,
						int arg2, long arg3) {
					// TODO Auto-generated method stub
					Log.i("values", "pos:"+arg2);
					Intent intent=new Intent(CustomActivity.this,CustomDetail.class);
					int pos=arg2-1;
					Log.i("values", list.get(pos).get("CustomNo").toString());
					intent.putExtra("CustomNo", list.get(pos).get("CustomNo").toString());
					startActivity(intent);
				}
			});
		} else {
			listview.setAdapter(null);
			tv_nodata.setText("暂无数据");
			data.setVisibility(View.VISIBLE);
		}

	}

	private class MyAdapter extends BaseAdapter{
		private Context context;
		private  List<Map<String, Object>> list;
		public MyAdapter(Context context,List<Map<String, Object>> list){
			this.context=context;
			if(list==null){
				list=new ArrayList<Map<String,Object>>();
			}else{
				this.list=list;
			}
		}
		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			if (list != null)
				return list.size();
			else
				return 0;
		}

		@Override
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			if (list != null)
				return list.get(position);
			else
				return null;
		}

		@Override
		public long getItemId(int position) {
			// TODO Auto-generated method stub
			return position;
		}

		@Override
		public View getView(final int position, View convervierw, ViewGroup arg2) {
			// TODO Auto-generated method stub
			ViewHolder holder=new ViewHolder();
			if(convervierw==null){
				convervierw=View.inflate(context, R.layout.customactivity_item, null);
				holder.CustomNo=(TextView) convervierw.findViewById(R.id.CustomNo);
				holder.Custom=(TextView) convervierw.findViewById(R.id.Custom);
				holder.LinkMan=(TextView) convervierw.findViewById(R.id.LinkMan);
				holder.Mobile=(TextView) convervierw.findViewById(R.id.Mobile);
				holder.CustomGrade=(TextView) convervierw.findViewById(R.id.CustomGrade);
				holder.btn_ct=(Button) convervierw.findViewById(R.id.btn_ct);
				convervierw.setTag(holder);
			}else{
				holder=(ViewHolder) convervierw.getTag();
			}
			holder.CustomNo.setText((String)list.get(position).get("CustomNo"));
			holder.Custom.setText((String)list.get(position).get("Custom"));
			holder.LinkMan.setText((String)list.get(position).get("LinkMan"));
			holder.Mobile.setText((String)list.get(position).get("Mobile"));
			holder.CustomGrade.setText((String)list.get(position).get("CustomGrade"));
			holder.btn_ct.setOnClickListener(new OnClickListener() {
				
				@Override
				public void onClick(View v) {
					// TODO Auto-generated method stub
					Intent intent=new Intent(CustomActivity.this,CustomAdd.class);
					intent.putExtra("CustomNo", (String)list.get(position).get("CustomNo"));
					intent.putExtra("Custom", (String)list.get(position).get("Custom"));
					intent.putExtra("name", name);
					startActivity(intent);
				}
			});
			return convervierw;
		}
		public final class ViewHolder {

			public TextView CustomNo;
			public TextView Custom;
			public TextView LinkMan;
			public TextView Mobile;
			public TextView CustomGrade;
			public Button btn_ct;
		}
	}
	@Override
	public void onRefresh() {
		// TODO Auto-generated method stub
		cleanData();
		loadData();
	}
	@Override
	public void onLoadMore() {
		// TODO Auto-generated method stub
		if(ifloadsearch){
			Toast.makeText(CustomActivity.this,"没有新数据了！", 1).show();
			
			mHandler.postDelayed(new Runnable() {
				@Override
				public void run() {
					
					onLoad();
				}
			}, 500);
			return;
		}
		//customdata.setCurrentpage(String.valueOf(page));
		if(customdata.getCurrentpage().equals(customdata.getPageall())){
			Toast.makeText(CustomActivity.this,"没有新数据了！", 1).show();
		
			mHandler.postDelayed(new Runnable() {
				@Override
				public void run() {
					
					onLoad();
				}
			}, 500);
			return;
		}else{
			page=page+1;
			customdata.setCurrentpage(String.valueOf(page));
			loadData();
			adapter.notifyDataSetChanged();
			
		}
		
		
	
	}
	private void onLoad() {
		listview.stopRefresh();
		listview.stopLoadMore();
		listview.setRefreshTime("刚刚");
	}
}

  好了  咱们接着写，在onRefresh()中写入cleanData()清除数据;loadData()重新加载网路数据;在loadData中获取后的数据如下

JSONObject jsonObject = new JSONObject(result.toString());
		if ("success".equals(jsonObject.getString("flag"))) {
			onLoad();

获取数据成果后加入onLoad();方法  这个方法是将下拉刷新的进度条隐藏，同时加上这句pross.setVisibility(View.GONE);进入页面的进步条也隐藏掉，因为获取数据成果就要把进度条都隐藏。loadata（）获取数据成果后  代码如下

adapter = new MyAdapter(this, list);
			listview.setAdapter(adapter);
			adapter.notifyDataSetChanged();
			listview.setXListViewListener(this);

往listview中加入数据。这样  我们就实现下拉刷新获取数据了，接下来将上拉加载更多onLoadMore（）方法。代码如下

if(customdata.getCurrentpage().equals(customdata.getPageall())){
			Toast.makeText(CustomActivity.this,"没有新数据了！", 1).show();
		
			mHandler.postDelayed(new Runnable() {
				@Override
				public void run() {
					
					onLoad();
				}
			}, 500);
			return;
		}else{
			page=page+1;
			customdata.setCurrentpage(String.valueOf(page));
			loadData();
			adapter.notifyDataSetChanged();
			
		}

customdata.getCurrentpage().equals(customdata.getPageall())是判断是不是访问数据最后一页的数据，如果是的话onLoad();返回不执行给个提示Toast.makeText(CustomActivity.this,"没有新数据了！", 1).show();就可以了。如果有下一页我们page=page+1;customdata.setCurrentpage(String.valueOf(page));设置当前的页数，loadData(); 重新获取第二页的数据，在 loadData()中params.put("pagenum", customdata.getCurrentpage());拼接的&pagenum=？，如何拼接参数看我的这篇文章http://blog.csdn.net/u012303938/article/details/42709015  。 adapter.notifyDataSetChanged();更新下adapter，最后就是查询数据了，ifloadsearch判断是否是search的状态下的 向上拉下载更多，如果是的话onLoad();返回，不许往list中加入数据。list是private ArrayList<Map<String, Object>> list = new ArrayList<Map<String, Object>>();用来存放加载出来的数据，必须是全局中进行初始化。

在btn_up是用来查询数据的，如下

String mob=et_phoe.getText().toString();
					    String linkman=et_name.getText().toString();
					    customdata.setLinkman(linkman);
					    customdata.setMob(mob);
					    list.clear();
					    loadData();
					    ifloadsearch=true;

 customdata.setLinkman(linkman); customdata.setMob(mob);存放数据， list.clear();清除list的数据，ifloadsearch=true;是查询的状态，loadData();重新获取数据 params.put("linkman", customdata.getLinkman());params.put("mob", customdata.getMob());拼接的要查询的参数，注意不要忘了cleandata()

ifloadsearch=false;
		list.clear();
		customdata=new customdata();
		customdata.setLinkman("");
		customdata.setMob("");
		customdata.setPageall("1");
		customdata.setCurrentpage("1");
		page=1;

结合上面的代码仔细看看就OK了  给大家一个效果图如下  

 下拉刷新效果图

将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中

上拉加载更多效果图                                       

将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中

查询效果图 

将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中
将修正好的Xlistview镶嵌进项目中
移动开发 安卓eclispe开发 XlistView 上拉加载更多 下拉刷新
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