NearPeopleActivity.java

package com.tencent.hq.qq.ui;

import java.util.ArrayList;
import java.util.List;

import com.tencent.hq.qq.R;
import com.tencent.hq.qq.adapter.NearPeopleAdapter;
import com.tencent.hq.qq.entity.User;
import com.tencent.hq.qq.util.CollectionUtils;
import com.tencent.hq.qq.widget.xlist.XListView;
import com.tencent.hq.qq.widget.xlist.XListView.IXListViewListener;

import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import cn.bmob.im.task.BRequest;
import cn.bmob.v3.listener.CountListener;
import cn.bmob.v3.listener.FindListener;



public class NearPeopleActivity extends ActivityBase implements IXListViewListener,OnItemClickListener {

	XListView mListView;
	NearPeopleAdapter adapter;
	String from = "";

	List<User> nears = new ArrayList<User>();

	private double QUERY_KILOMETERS = 10;//Ĭ�ϲ�ѯ10���ﷶΧ�ڵ���
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_near_people);
		initView();
	}

	private void initView() {
		initTopBarForLeft("附近的人");
		initXListView();
	}

	private void initXListView() {
		mListView = (XListView) findViewById(R.id.list_near);
		mListView.setOnItemClickListener(this);
		// ���Ȳ�������ظ��
		mListView.setPullLoadEnable(false);
		// ��������
		mListView.setPullRefreshEnable(true);
		// ���ü�����
		mListView.setXListViewListener(this);
		//
		mListView.pullRefreshing();
		
		adapter = new NearPeopleAdapter(this, nears);
		mListView.setAdapter(adapter);
		initNearByList(false);
	}

	
	int curPage = 0;
	ProgressDialog progress ;
	private void initNearByList(final boolean isUpdate){
		if(!isUpdate){
			progress = new ProgressDialog(NearPeopleActivity.this);
			progress.setMessage("正在查询附近的人...");
			progress.setCanceledOnTouchOutside(true);
			progress.show();
		}
		
		if(!mApplication.getLatitude().equals("")&&!mApplication.getLongtitude().equals("")){
			double latitude = Double.parseDouble(mApplication.getLatitude());
			double longtitude = Double.parseDouble(mApplication.getLongtitude());
			
			userManager.queryKiloMetersListByPage(isUpdate,0,"location", longtitude, latitude, true,QUERY_KILOMETERS,"sex",false,new FindListener<User>() {
			//�˷���Ĭ�ϲ�ѯ���д����λ����Ϣ�����Ա�ΪŮ���û��б?����㲻�������б�Ļ�������ѯ�����е�isShowFriends����Ϊfalse����
//			userManager.queryNearByListByPage(isUpdate,0,"location", longtitude, latitude, true,"sex",false,new FindListener<User>() {

				@Override
				public void onSuccess(List<User> arg0) {
					// TODO Auto-generated method stub
					if (CollectionUtils.isNotNull(arg0)) {
						if(isUpdate){
							nears.clear();
						}
						adapter.addAll(arg0);
						if(arg0.size()<BRequest.QUERY_LIMIT_COUNT){
							mListView.setPullLoadEnable(false);
							ShowToast("附近的人搜索完成!");
						}else{
							mListView.setPullLoadEnable(true);
						}
					}else{
						ShowToast("暂无附近的人!");
					}
					
					if(!isUpdate){
						progress.dismiss();
					}else{
						refreshPull();
					}
				}
				
				@Override
				public void onError(int arg0, String arg1) {
					// TODO Auto-generated method stub
					ShowToast("暂无附近的人!");
					mListView.setPullLoadEnable(false);
					if(!isUpdate){
						progress.dismiss();
					}else{
						refreshPull();
					}
				}

			});
		}else{
			ShowToast("暂无附近的人!");
			progress.dismiss();
			refreshPull();
		}
		
	}
	
	/** ��ѯ���
	  * @Title: queryMoreNearList
	  * @Description: TODO
	  * @param @param page 
	  * @return void
	  * @throws
	  */
	private void queryMoreNearList(int page){
		double latitude = Double.parseDouble(mApplication.getLatitude());
		double longtitude = Double.parseDouble(mApplication.getLongtitude());
		//��ѯ10���ﷶΧ�ڵ��Ա�ΪŮ���û��б�
		userManager.queryKiloMetersListByPage(true,page,"location", longtitude, latitude, true,QUERY_KILOMETERS,"sex",false,new FindListener<User>() {
		//��ѯȫ������λ����Ϣ���Ա�ΪŮ�Ե��û��б�
//		userManager.queryNearByListByPage(true,page, "location", longtitude, latitude, true,"sex",false,new FindListener<User>() {

			@Override
			public void onSuccess(List<User> arg0) {
				// TODO Auto-generated method stub
				if (CollectionUtils.isNotNull(arg0)) {
					adapter.addAll(arg0);
				}
				refreshLoad();
			}
			
			@Override
			public void onError(int arg0, String arg1) {
				// TODO Auto-generated method stub
				ShowLog("查询更多附近的人出错:"+arg1);
				mListView.setPullLoadEnable(false);
				refreshLoad();
			}

		});
	}
	
	@Override
	public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
		// TODO Auto-generated method stub
		User user = (User) adapter.getItem(position-1);
		Intent intent =new Intent(this,SetMyInfoActivity.class);
		intent.putExtra("from", "add");
		intent.putExtra("username", user.getUsername());
		startAnimActivity(intent);		
	}

	@Override
	public void onRefresh() {
		// TODO Auto-generated method stub
		initNearByList(true);
	}

	private void refreshLoad(){
		if (mListView.getPullLoading()) {
			mListView.stopLoadMore();
		}
	}
	
	private void refreshPull(){
		if (mListView.getPullRefreshing()) {
			mListView.stopRefresh();
		}
	}
	@Override
	public void onLoadMore() {
		// TODO Auto-generated method stub
		double latitude = Double.parseDouble(mApplication.getLatitude());
		double longtitude = Double.parseDouble(mApplication.getLongtitude());
		
		userManager.queryKiloMetersTotalCount(User.class, "location", longtitude, latitude, true,QUERY_KILOMETERS,"sex",false,new CountListener() {
	   
//		userManager.queryNearTotalCount(User.class, "location", longtitude, latitude, true,"sex",false,new CountListener() {
			
			@Override
			public void onSuccess(int arg0) {
				// TODO Auto-generated method stub
				if(arg0 >nears.size()){
					curPage++;
					queryMoreNearList(curPage);
				}else{
					ShowToast("数据加载完成");
					mListView.setPullLoadEnable(false);
					refreshLoad();
				}
			}
			
			@Override
			public void onFailure(int arg0, String arg1) {
				// TODO Auto-generated method stub
				ShowLog("查询附近的人总数失败"+arg1);
				refreshLoad();
			}
		});
		
	}

}