google_map_api_v2_地图导航.docx

这是我自己写的一个google 最新的基于map api v2的地图导航功能，本人的机器是索尼爱立信 mt11i，系统为2.3.3亲测完全可用，google map api v2许可码请自己去谷歌申请,你过你的测试系统api版本11（android3.0）以上的话，注意两处map = (SupportMapFragment) (this.getSupportFragmentManager().findFragmentById(R.id.map).getMap();和布局文件中的support均可以省略support欢迎加群讨论技术方面的问题：杭州android开发讨论群（216045581）LocationManager locMgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE);/获得LocationManager引用locMgr.getLastKnownLocation(LocationManager.GPS_PROVIDER);/提供设备最后已知位置,这里有3种,GPS_PROVIDER GPS获得,NETWORK_PROVIDER网络获得,PASSIVE_PROVIDER被动提供其他应用程序提供locMgr.getAllProviders();/返回所有能用或不能用的提供程序locMgr.getProvider(Provider name);/返回指定提供程序locMgr.isProviderEnabled(provider);/判断指定提供程序是否能用locMgr.getProviders(true);/返回立即可以使用的提供程序locMgr.getProviders(criteria, true)/返回可以使用的提供程序，并且用criteria对象指定条件locMgr.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0,/ 间隔多少毫秒通知 0,/ 最小间隔距离变化通知 locListener);/在onResume()中注册接收位置跟新事件的接收器locMgr.removeUpdates(locListener);/在onPause()中删除注册LocationListener locListener = new LocationListener()/位置监听器 /位置信息更新时调用 public void onLocationChanged(Location location) if (location != null) Toast.makeText(getBaseContext(), New location latitude + location.getLatitude() + longitude + location.getLongitude()+, Toast.LENGTH_SHORT).show(); /当禁用的提供程序被调用时会立即调用 public void onProviderDisabled(String provider) /用户启用提供程序时被调用 public void onProviderEnabled(String provider) /状态变化时被调用 public void onStatusChanged(String provider, int status, Bundle extras) ; startActivityForResult(new Intent(vider.Settings.ACTION_LOCALE_SETTINGS), 0);/请求用户打开GPS/*LocationManager 接近提醒*/geo模式:用uri的前缀来过滤数据类型String PROX_ALERT = ent.action.PROXIMITY_ALERT;IntentFilter iFilter = new IntentFilter(PROX_ALERT);/设置了过滤器所接受的行为iFilter.addDataScheme(geo);/设置了过滤器说接受的uri前缀String geo = geo:+lat+,+lon;Intent intent = new Intent(PROX_ALERT, Uri.parse(geo);/在intent中添加uri匹配intentFilterpIntent1 = PendingIntent.getBroadcast(getApplicationContext(), 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);/创建PendingIntentlocMgr.addProximityAlert(lat, lon, radius, 6000L, pIntent1);/纬度,经度,半径，超时,触发后的行为AndroidManifest.xml 布局文件 菜单弹出框布局文件 这个是activitypackage com.example.v2_test;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.List;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.client.methods.HttpPost;import org.apache.http.impl.client.DefaultHttpClient;import org.json.JSONArray;import org.json.JSONException;import org.json.JSONObject;import com.google.android.gms.maps.CameraUpdateFactory;import com.google.android.gms.maps.GoogleMap;import com.google.android.gms.maps.SupportMapFragment;import com.google.android.gms.maps.model.CameraPosition;import com.google.android.gms.maps.model.LatLng;import com.google.android.gms.maps.model.Marker;import com.google.android.gms.maps.model.MarkerOptions;import com.google.android.gms.maps.model.Polyline;import com.google.android.gms.maps.model.PolylineOptions;import android.app.AlertDialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.content.DialogInterface.OnClickListener;import android.graphics.Color;import android.location.Criteria;import android.location.Location;import android.location.LocationListener;import android.location.LocationManager;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.support.v4.app.FragmentActivity;import android.util.Log;import android.view.LayoutInflater;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.EditText;import android.widget.ImageButton;public class MainActivity extends FragmentActivity List list;Polyline polyline;private Location location;private CameraPosition cameraPosition;private GoogleMap map;String start = ;String end = ;double lat = 0.0;double lng = 0.0;double endlat = 0.0;double endlng = 0.0;LocationManager locationManager;ImageButton local;LocationListener llistener;Marker marker;private ProgressDialog progressdialog;private Handler mHandler = new Handler() public void handleMessage(Message msg) switch (msg.what) case 1: progressdialog.dismiss();if(polyline!=null)polyline.remove();map.clear();markMysition();map.addMarker(new MarkerOptions().position(new LatLng(endlat, endlng).title(MainActivity.this.getLocation(endlat, endlng);LatLng last = null;for (int i = 0; i 0) JSONObject jsonobject = new JSONObject(resultString);JSONArray jsonArray = new JSONArray(jsonobject.get(results).toString();resultString = ;for (int i = 0; i jsonArray.length(); i+) resultString = jsonArray.getJSONObject(i).getString(formatted_address);address += resultString; catch (Exception e) finally get.abort();client = null;return address;/ 通过输入信息解析json获取路线private void getDirection(String start, String endposition) String DresultString = ;String Durl = /maps/api/directions/json?origin=+ lat + , + lng + &destination= + endlat + , + endlng+ &sensor=true&mode=driving;HttpClient Dclient = new DefaultHttpClient();HttpGet Dget = new HttpGet(Durl);HttpResponse response;try response = Dclient.execute(Dget);HttpEntity Dentity = response.getEntity();BufferedReader DbuffReader = new BufferedReader(new InputStreamReader(Dentity.getContent();StringBuffer DstrBuff = new StringBuffer();String Dresult = null;while (Dresult = DbuffReader.readLine() != null) DstrBuff.append(Dresult);DresultString = DstrBuff.toString(); catch (Exception e) try final JSONObject jsonObject = new JSONObject(DresultString);JSONArray routeArray = jsonObject.getJSONArray(routes);JSONObject routes = routeArray.getJSONObject(0);JSONObject overviewPolylines = routes.getJSONObject(overview_polyline);String encodedString = overviewPolylines.getString(points);Log.d(test: , encodedString);list = decodePoly(encodedString); catch (JSONException e) e.printStackTrace(); catch (ArrayIndexOutOfBoundsException e) System.err.println(Caught ArrayIndexOutOfBoundsException: + e.getMessage();/ 填写起始地点以得到路线导航private void editpoint() LayoutInflater factory = LayoutInflater.from(MainActivity.this);/ 获得自定义对话框final View view = factory.inflate(R.layout.getdirections, null);AlertDialog navigate = new AlertDialog.Builder(MainActivity.this).setIcon(android.R.drawable.ic_menu_edit).setTitle(获取路线).setView(view).setPositiveButton(确定, new OnClickListener() Overridepublic void onClick(DialogInterface dialog, int which) dialog.dismiss();EditText st = (EditText) view.findViewById(R.id.start);EditText en = (EditText) view.findViewById(R.id.end);start = st.getText().toString();end = en.getText().toString();progressdialog = ProgressDialog.show(MainActivity.this,正在获取路线, 请稍等, true);new Thread(new Runnable() Overridepublic void run() / TODO Auto-generated method stubgetlatlng(end);getDirection(我的位置, end);mHandler.sendEmptyMessage(0);mHandler.sendEmptyMessage(1);).start();).setNegativeButton(取消, null).create();navigate.show();/ 根据地理名称获得起始点和终点的经纬度private void getlatlng(String end) StringBuilder stringBuilder = new StringBuilder();try HttpPost httppost = new HttpPost(/maps/api/geocode/json?address=+ end + &sensor=false);HttpClient client = new DefaultHttpClient();HttpResponse response;stringBuilder = new StringBuilder();response = client.execute(httppost);HttpEntity entity = response.getEntity();InputStream stream = entity.getContent();int b;while (b = stream.read() != -1) stringBuilder.append(char) b); catch (ClientProtocolException e) / TODO Auto-generated catch blocke.printStackTrace(); catch (IOException e) / TODO Auto-generated catch blocke.printStackTrace();JSONObject jsonObject = new JSONObject();try jsonObject = new JSONObject(stringBuilder.toString(); catch (JSONException e) / TODO Auto-generated catch