定位和xml解析和gson解析加上拉加载，下拉刷新

2022-08-03 21:45:50

这里的上拉加载，下拉刷新用到是依赖包

Mainactivity，xml解析和定位

package com.exmple.autolayout;

import java.util.List;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ListView;

import android.widget.TextView;

import com.baidu.location.BDLocation;

import com.baidu.location.BDLocationListener;

import com.baidu.location.LocationClient;

import com.baidu.location.LocationClientOption;

import com.baidu.location.LocationClientOption.LocationMode;

import com.exmple.base.BaseApater;

import com.exmple.netUtil.NetUtil;

import com.exmple.vo.Myitem;

import com.exmple.vo.Super;

import com.thoughtworks.xstream.XStream;

import com.zhy.autolayout.AutoLayoutActivity;

public class MainActivity extends AutoLayoutActivity {

	public LocationClient mLocationClient = null;

	public BDLocationListener myListener = new MyLocationListener();

	private TextView city;

	private ListView listview;

	private List<Myitem> list;

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		city = (TextView) findViewById(R.id.city);

		listview = (ListView) findViewById(R.id.listview);

		mLocationClient = new LocationClient(getApplicationContext()); // 声明LocationClient类

		mLocationClient.registerLocationListener(myListener);

		initLocation();

		mLocationClient.start();

		new My().execute("http://apis.juhe.cn/goodbook/catalog?key=9d6ef8c31647a206e05fcaff70527182&dtype=xml");

		listview.setOnItemClickListener(new OnItemClickListener() {

			@Override

			public void onItemClick(AdapterView<?> parent, View view,

					int position, long id) {

				Intent ints = new Intent(MainActivity.this, NewActivity.class);

				ints.putExtra("id", list.get(position).getId());

				startActivity(ints);

			}

		});

	}

	private void initLocation() {

		LocationClientOption option = new LocationClientOption();

		option.setLocationMode(LocationMode.Hight_Accuracy);// 可选，默认高精度，设置定位模式，高精度，低功耗，仅设备

		option.setCoorType("bd09ll");// 可选，默认gcj02，设置返回的定位结果坐标系

		int span = 1000;

		option.setScanSpan(span);// 可选，默认0，即仅定位一次，设置发起定位请求的间隔需要大于等于1000ms才是有效的

		option.setIsNeedAddress(true);// 可选，设置是否需要地址信息，默认不需要

		option.setOpenGps(true);// 可选，默认false,设置是否使用gps

		option.setLocationNotify(true);// 可选，默认false，设置是否当gps有效时按照1S1次频率输出GPS结果

		option.setIsNeedLocationDescribe(true);// 可选，默认false，设置是否需要位置语义化结果，可以在BDLocation.getLocationDescribe里得到，结果类似于“在北京*附近”

		option.setIsNeedLocationPoiList(true);// 可选，默认false，设置是否需要POI结果，可以在BDLocation.getPoiList里得到

		option.setIgnoreKillProcess(false);// 可选，默认true，定位SDK内部是一个SERVICE，并放到了独立进程，设置是否在stop的时候杀死这个进程，默认不杀死

		option.SetIgnoreCacheException(false);// 可选，默认false，设置是否收集CRASH信息，默认收集

		option.setEnableSimulateGps(false);// 可选，默认false，设置是否需要过滤gps仿真结果，默认需要

		mLocationClient.setLocOption(option);

	}

	public class MyLocationListener implements BDLocationListener {

		@Override

		public void onReceiveLocation(BDLocation location) {

			// Receive Location

			city.setText(location.getCity());

		}

	}

	public class My extends AsyncTask<String, Integer, String> {

		@Override

		protected String doInBackground(String... params) {

			String url = NetUtil.getXMl(params[0]);

			return url;

		}

		@Override

		protected void onPostExecute(String result) {

			// TODO Auto-generated method stub

			super.onPostExecute(result);

			XStream xs = new XStream();

			xs.processAnnotations(Super.class);

			Super xml = (Super) xs.fromXML(result);

			list = xml.getResult().getItem();

			if (list != null) {

				BaseApater ba = new BaseApater(list, MainActivity.this);

				listview.setAdapter(ba);

			}

		}

	}

}

　　NewActivitygson解析，handler发送消息，网络请求将数据拼接

package com.exmple.autolayout;

import java.util.ArrayList;

import java.util.List;

import android.content.Intent;

import android.os.Bundle;

import android.os.Handler;

import android.text.format.DateUtils;

import android.util.Log;

import android.widget.GridView;

import android.widget.Toast;

import com.exmple.base.BaseApater1;

import com.exmple.datevo.DateSuper;

import com.exmple.datevo.MyData;

import com.exmple.netUtil.NetUtil;

import com.google.gson.Gson;

import com.handmark.pulltorefresh.library.PullToRefreshBase;

import com.handmark.pulltorefresh.library.PullToRefreshBase.OnRefreshListener2;

import com.handmark.pulltorefresh.library.PullToRefreshGridView;

import com.zhy.autolayout.AutoLayoutActivity;

public class NewActivity extends AutoLayoutActivity {

	String url = "http://apis.juhe.cn/goodbook/query?key=9d6ef8c31647a206e05fcaff70527182";

	private PullToRefreshGridView grd;

	int page = 1;

	Handler ha = new Handler() {

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

			String ma = msg.obj.toString();

			Gson gs = new Gson();

			DateSuper fromJson = gs.fromJson(ma, DateSuper.class);

			if (fromJson != null) {

				List<MyData> list = fromJson.getResult().getData();

				lists.addAll(list);

				BaseApater1 ba = new BaseApater1(lists, NewActivity.this);

				grd.setAdapter(ba);

			}

		};

	};

	List<MyData> lists = new ArrayList<MyData>();

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_new);

		Intent ints = getIntent();

		final String id = ints.getStringExtra("id");

		Toast.makeText(NewActivity.this, id, 0).show();

		grd = (PullToRefreshGridView) findViewById(R.id.pull_refresh_grid);

		getData(url, id, page);

		grd.setOnRefreshListener(new OnRefreshListener2<GridView>() {

			@Override

			public void onPullDownToRefresh(

					PullToRefreshBase<GridView> refreshView) {

				Log.e("TAG", "onPullDownToRefresh"); // Do work to

				String label = DateUtils.formatDateTime(

						getApplicationContext(), System.currentTimeMillis(),

						DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE

								| DateUtils.FORMAT_ABBREV_ALL);

				// Update the LastUpdatedLabel

				refreshView.getLoadingLayoutProxy().setLastUpdatedLabel(label);

				page=1;

				System.out.println(page+"=========");

				getData(url, id, page);

				grd.onRefreshComplete();

			}

			@Override

			public void onPullUpToRefresh(

					PullToRefreshBase<GridView> refreshView) {

				Log.e("TAG", "onPullUpToRefresh"); // Do work to refresh

				page++;

				System.out.println(page+"++++++++++");

				getData(url, id, page);

				grd.onRefreshComplete();

				// the list here.

			}

		});

	}

	private void getData(final String url, final String id, final int page) {

		new Thread() {

			public void run() {

				String data = NetUtil.getXMl(url, id, page);

				ha.sendMessage(ha.obtainMessage(1, data));

			};

		}.start();

	}

}

　　NetUtil网络请求

package com.exmple.netUtil;

import java.io.IOException;

import org.apache.http.HttpEntity;

import org.apache.http.HttpResponse;

import org.apache.http.client.ClientProtocolException;

import org.apache.http.client.HttpClient;

import org.apache.http.client.methods.HttpGet;

import org.apache.http.impl.client.DefaultHttpClient;

import org.apache.http.params.BasicHttpParams;

import org.apache.http.params.HttpConnectionParams;

import org.apache.http.params.HttpParams;

import org.apache.http.util.EntityUtils;

public class NetUtil {

	public static String getXMl(String url)

	{

		String str="";

		HttpGet get=new HttpGet(url);

		HttpParams parmas=new BasicHttpParams();

		HttpConnectionParams.setConnectionTimeout(parmas, 50000);

		HttpConnectionParams.setSoTimeout(parmas, 50000);

		HttpClient client=new DefaultHttpClient();

		try {

			HttpResponse execute = client.execute(get);

			if(execute.getStatusLine().getStatusCode()==200)

			{

				HttpEntity entity=execute.getEntity();

				str=EntityUtils.toString(entity, "UTF-8");

			}

		} catch (ClientProtocolException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (IOException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

		return str;

	}

	public static String getXMl(String url,String id,int page)

	{

		String str="";

		StringBuffer sb=new StringBuffer(url);

		sb.append("&catalog_id="+id);

		sb.append("&rn=10&rn=10&pn="+page);

		HttpGet get=new HttpGet(sb.toString());

		HttpParams parmas=new BasicHttpParams();

		HttpConnectionParams.setConnectionTimeout(parmas, 50000);

		HttpConnectionParams.setSoTimeout(parmas, 50000);

		HttpClient client=new DefaultHttpClient();

		try {

			HttpResponse execute = client.execute(get);

			if(execute.getStatusLine().getStatusCode()==200)

			{

				HttpEntity entity=execute.getEntity();

				str=EntityUtils.toString(entity, "UTF-8");

			}

		} catch (ClientProtocolException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		} catch (IOException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

		return str;

	}

}

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