目前我们项目上在做一个兴趣点搜索的小功能（搜索附近的电影院），用的是高德地图，为了便于记忆，就写下来。功能及页面都很简单，就是在输入框中输入内容，然后就会搜索出附近相关的位置，然后在ListView中展示出来。项目中使用的是分页加载，为了写文章方便，就把加载去掉了，直接用ListView展示出来。
----------------------------------界面布局---------------------------------------
<?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:background="@color/all_activity_layout_bg_color"
android:orientation="vertical" >
<RelativeLayout
android:id="@+id/ll_search"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginBottom="8dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="8dp"
android:orientation="horizontal" >
<RelativeLayout
android:id="@+id/rl_search_plane"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_marginRight="10dp"
android:layout_toLeftOf="@+id/tv_search_btn"
android:background="@drawable/seabar_input" >
<ImageView
android:id="@+id/iv_search_img"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_marginLeft="10dp"
android:src="@drawable/search_img" />
<EditText
android:id="@+id/et_search_edt_text"
android:layout_width="match_parent"
android:layout_height="40dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="75dp"
android:layout_toRightOf="@+id/iv_search_img"
android:background="@null"
android:gravity="center_vertical"
android:hint="输入要搜索KTV地址"
android:maxLength="32"
android:singleLine="true"
android:textColor="#333333"
android:textColorHint="#aaaaaa"
android:textSize="16sp" >
</EditText>
</RelativeLayout>
<TextView
android:id="@+id/tv_search_btn"
android:layout_width="59dp"
android:layout_height="40dp"
android:layout_alignParentRight="true"
android:layout_marginLeft="10dp"
android:gravity="center"
android:text="取消"
android:textColor="#333333"
android:textSize="16sp"
android:visibility="gone" >
</TextView>
</RelativeLayout>
<ListView
android:id="@+id/listview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="15dp"
android:cacheColorHint="#0000"
android:divider="@null"
android:fadingEdge="none"
android:fastScrollEnabled="false"
android:footerDividersEnabled="false"
android:headerDividersEnabled="false"
android:listSelector="#00000000"
android:scrollbars="none"
android:windowSoftInputMode="adjustResize" />
</LinearLayout>
--------------------------Activity类-----------------------------------------
public class AmapPoisListActivity extends BaseAct implements OnItemClickListener {
private ListView listview;
private AmapAdapter mAdapter;
private EditText search_edt;
private TextView search_Tv;
private String keyString = "KTV";
private ArrayList<AmapBean> dataList;
private PoiSearchUtil mPoiSearchUtil;
@Override
public void setRootView() {//onCreate()方法
setContentView(R.layout.activity_myconcernlist_layout);
mPoiSearchUtil = new PoiSearchUtil(this);
initWidget();
}
private void initWidget() {
super.initWidget();
listview = (ListView) findViewById(R.id.listview);
search_edt = (EditText) findViewById(R.id.et_search_edt_text);
search_edt.addTextChangedListener(searchTextWatcher);
search_Tv = (TextView) findViewById(R.id.tv_search_btn);
search_Tv.setOnClickListener(this);
search_Tv.setVisibility(View.GONE);
mPoiSearchUtil.setPoiResultCallback(mPoiResultCallback);
mPoiSearchUtil.startSearchPoi(keyString);
initAdapter();
}
PoiResultCallback mPoiResultCallback = new PoiResultCallback() {
@Override
public void onSuccess(List<PoiItem> resultList, int pageNum, int totalPage) {
dataList = new ArrayList<AmapBean>();
for (PoiItem poiItem : resultList) {
AmapBean amapInfoBean = new AmapBean(poiItem);
dataList.add(amapInfoBean);
}
}
@Override
public void onError(String errorReason) {
dismissLoadingDialog();
showToastMsg(errorReason);
}
};
@Override
public void widgetClick(View v) {
// TODO Auto-generated method stub
super.widgetClick(v);
switch (v.getId()) {
case R.id.tv_search_btn:
search_edt.setText("");
break;
default:
break;
}
}
/** 初始化适配器和URL */
protected void initAdapter() {
mAdapter = new AmapAdapter(this, dataList);
listview.setAdapter(mAdapter);
listview.setOnItemClickListener(this);
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
int realPosition = position - listview.getHeaderViewsCount();
Toast.makeText(this, "你点击的是：" + dataList.get(realPosition).getDistance(), Toast.LENGTH_SHORT).show();
}
private TextWatcher searchTextWatcher = new TextWatcher() {
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (mAdapter == null) return;
if (s.length() > 0) {
mPoiSearchUtil.startSearchPoi(keyString);
search_Tv.setVisibility(View.VISIBLE);
}
else {
mPoiSearchUtil.startSearchPoi(keyString);
search_Tv.setVisibility(View.GONE);
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
}
};
}
--------------数据适配类--------------------------------------
public class AmapAdapter extends BaseAdapter {
private Context context;
private ArrayList<AmapBean> dataList;
public AmapAdapter(Context context, ArrayList<AmapBean> dataList) {
this.context = context;
this.dataList = dataList;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHolder holder;
if (convertView == null) {
convertView = View.inflate(context, R.layout.item_amap_list, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
setData(holder, position);
return convertView;
}
private void setData(ViewHolder holder, int position) {
holder.distancetv.setText(DistanceTools.distanceUnitConversion(dataList.get(position).getDistance()) + "");
holder.addresTv.setText(dataList.get(position).getPoiCompileAddr());
}
private static class ViewHolder {
public ViewHolder(View convertView) {
titleName = (TextView) convertView.findViewById(R.id.titleName);
distancetv = (TextView) convertView.findViewById(R.id.distancetv);
addresTv = (TextView) convertView.findViewById(R.id.addresTv);
}
/** 标题 */
TextView titleName;
/** 距离 */
TextView distancetv;
/** 详细地址 */
TextView addresTv;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return dataList.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return dataList.get(position);
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
}
--------------高德PoiSearch工具类----------------------------
public class PoiSearchUtil implements OnPoiSearchListener {
/**Poi查询条件类*/
private Query query;
private PoiSearch poiSearch;
private int currentPage = 0;
private LatLonPoint lp = new LatLonPoint(22.538249, 113.943487);// 默认深圳
private Context context;
/**poi返回的结果*/
protected PoiResult poiResult;
/**定义一个搜索回调接口*/
public static interface PoiResultCallback {
/**成功处理*/
void onSuccess(List<PoiItem> resultList, int pageNum, int totalPage);
/**失败处理*/
void onError(String errorReason);
}
private PoiResultCallback poiResultCallback;
public PoiResultCallback getPoiResultCallback() {
return poiResultCallback;
}
public void setPoiResultCallback(PoiResultCallback poiResultCallback) {
this.poiResultCallback = poiResultCallback;
}
public PoiSearchUtil(Context context) {
this.context = context;
}
public void setLatLonPoint(double latitude, double longitude) {
if ((latitude != 0) && (longitude != 0)) {
lp.setLatitude(latitude);
lp.setLongitude(longitude);
}
}
public void startSearchPoi(String key) {
startSearchPoi(key, PreferencesHelper.getCurrentLatitude(), PreferencesHelper.getCurrentLongitude(), 10);
}
public void startSearchPoi(String key, double latitude, double longitude, int pageSize) {
currentPage = 0;
/**第一个参数表示搜索字符串，第二个参数表示POI搜索类型(参考 《高德地图API POI类别对照表》)，二选其一
* 第三个参数表示POI搜索区域（空字符串代表全国,参考《高德地图API 城市编码对照表》）
*/
setLatLonPoint(latitude, longitude);
try {
/**第三个直接填空，在setBound中设置范围*/
query = new Query(key, "", "");
/**下面两项所有POI*/
query.setLimitDiscount(false);
query.setLimitGroupbuy(false);
/**设置每页最多返回多少条poiitem*/
query.setPageSize(pageSize);
/**设置查第一页*/
query.setPageNum(0);
poiSearch = new PoiSearch(context, query);
/**搜索监听*/
poiSearch.setOnPoiSearchListener(this);
/**设置查询矩形*/
poiSearch.setBound(new SearchBound(lp, 8 * 1000, true));//
/**异步搜索*/
poiSearch.searchPOIAsyn();
}
catch (Exception e) {
e.printStackTrace();
if (null != poiResultCallback) poiResultCallback.onError("高德地图初始化失败");
}
}
@Override
public void onPoiSearched(PoiResult result, int rCode) {
if (rCode == 0) {
if (result != null && result.getQuery() != null) {
/**搜索poi的结果*/
if (result.getQuery().equals(query)) {
/**判断是否是同一条*/
poiResult = result;
ArrayList<PoiItem> poiItems = poiResult.getPois();
if (poiItems != null && poiItems.size() > 0) {
/**保存数据*/
if (null != poiResultCallback) poiResultCallback.onSuccess(poiItems, currentPage, result.getPageCount());
}
else {
if (null != poiResultCallback) poiResultCallback.onError("没有数据");
}
}
}
}
else if (rCode == 27) {
Log.v("ldm", "搜索失败,请检查网络连接");
if (null != poiResultCallback) poiResultCallback.onError("搜索失败,请检查网络连接");
}
else if (rCode == 32) {
Log.v("ldm", "key验证无效！");
if (null != poiResultCallback) poiResultCallback.onError("key验证无效！");
}
else {
Log.v("ldm", "未知错误，请稍后重试!错误码为" + rCode);
if (null != poiResultCallback) poiResultCallback.onError("未知错误，请稍后重试!错误码为" + rCode);
}
}
@Override
public void onPoiItemDetailSearched(PoiItemDetail arg0, int arg1) {
}
}
------------备注-------------------
1，要从高德地图开发者服务中获取正确的KEY值，
2，ListView的适配器中布局文件没有贴出来，就是几个TextView
3，时间原因，代码写得杂乱，有不正确的地方，请多多包涵。
原文地址：http://blog.csdn.net/true100/article/details/45042449
