android 导航源码

package com.autonavi.routedemo; import java.io.IOException; import java.util.List; import android.app.AlertDialog; import android.content.Intent; import android.content.res.Resources; import android.graphics.drawable.Drawable; import android.os.Bundle; import android.util.Log; import android.view.GestureDetector; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.MotionEvent; import android.view.View; import android.view.GestureDetector.OnGestureListener; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.widget.Button; import android.widget.ImageButton; import android.widget.Toast; import com.autonavi.mapapi.GeoPoint; import com.autonavi.mapapi.MapActivity; import com.autonavi.mapapi.MapView; import com.autonavi.mapapi.PoiPagedResult; import com.autonavi.mapapi.PoiSearch; import com.autonavi.mapapi.PoiTypeDef; import com.autonavi.mapapi.Route; import com.autonavi.mapapi.RouteMessageHandler; import com.autonavi.mapapi.RouteOverlay; import com.autonavi.mapapi.MapView.LayoutParams; import com.autonavi.mapapi.Route.FromAndTo; /* * 显示MapView 实现PoiSearch及Route功能 */ public class Main extends MapActivity implements RouteMessageHandler, OnGestureListener { /** Called when the activity is first created. */ public void onCreate(Bundle savedInstancedState) { super.onCreate(savedInstancedState); setContentView(R.layout.main); mv = (MapView) this.findViewById(R.id.mapView); mv.setBuiltInZoomControls(true); setInitView(); } private void setInitView() { calculateRoute = (Button) this.findViewById(R.id.CalculateRoute); setSearch = (Button) this.findViewById(R.id.setStartAndEnd); driving = (ImageButton) this.findViewById(R.id.driving); bus = (ImageButton) this.findViewById(R.id.bus); walk = (ImageButton) this.findViewById(R.id.walk); calculateRoute.setOnClickListener(clickListener); setSearch.setOnClickListener(clickListener); driving.setOnClickListener(clickListener); bus.setOnClickListener(clickListener); bus.setBackgroundResource(R.drawable.transit_down); walk.setOnClickListener(clickListener); mv.setLongClickable(true); mGestureDetector.setIsLongpressEnabled(true); } private void showPoiOverlay(String poiType, String cityStr, boolean start) { try { if (start) { // PoiSearch.Query 设置POI 查询条件 // startStr为查询字符串，poiType为类型，cityStr是城市代码 poiSearchStart = new PoiSearch(this, new PoiSearch.Query( startStr, poiType, cityStr)); // 返回 PoiPagedResult resultStart = poiSearchStart.searchPOI(); // PoiOverlaySelectPoint继承自PoiOverlay，resultStart.getPage(1)，取结果第一页 selectPointStart = new PoiOverlaySelectPoint(null, resultStart .getPage(1), startPoint, endPoint, true, this); selectPointStart.addToMap(mv); } else { poiSearchEnd = new PoiSearch(this, new PoiSearch.Query(endStr, poiType, cityStr)); // 返回 PoiPagedResult resultEnd = poiSearchEnd.searchPOI(); // PoiOverlaySelectPoint继承自PoiOverlay，resultStart.getPage(1)，取结果第一页 selectPointEnd = new PoiOverlaySelectPoint(null, resultEnd .getPage(1), startPoint, endPoint, false, this); selectPointEnd.addToMap(mv); } } catch (IOException e) { this.showToast("网络连接异常"); e.printStackTrace(); } } public boolean onCreateOptionsMenu(Menu menu) { super.onCreateOptionsMenu(menu); MenuInflater inflater = this.getMenuInflater(); inflater.inflate(R.menu.menu, menu); return true; } public boolean onOptionsItemSelected(MenuItem item) { super.onOptionsItemSelected(item); switch (item.getItemId()) { case R.id.exit: { // // 调用系统home键退出 // Intent i = new Intent(Intent.ACTION_MAIN); // i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // i.addCategory(Intent.CATEGORY_HOME); // startActivity(i); // break; // 2.1 退出有效 // ActivityManager manager = (ActivityManager) this // .getSystemService(this.getApplicationContext().ACTIVITY_SERVICE); // manager.restartPackage(this.getPackageName()); this.finish(); break; } case R.id.about: { new AlertDialog.Builder(Main.this).setMessage(R.string.about) .create().show(); break; } default: break; } return false; } private void setModeBackResource(int mode) { if (mode == Route.DrivingDefault) { driving.setBackgroundResource(R.drawable.driving_down); walk.setBackgroundResource(R.drawable.walk); bus.setBackgroundResource(R.drawable.transit); } else if (mode == Route.BusDefault) { bus.setBackgroundResource(R.drawable.transit_down); walk.setBackgroundResource(R.drawable.walk); driving.setBackgroundResource(R.drawable.driving); } else if (mode == Route.WalkDefault) { walk.setBackgroundResource(R.drawable.walk_down); bus.setBackgroundResource(R.drawable.transit); driving.setBackgroundResource(R.drawable.driving); } } OnClickListener clickListener = new OnClickListener() { public void reCalculate(int mode, GeoPoint start, GeoPoint end) { setModeBackResource(mode); if ((startPoint != null) && (endPoint != null)) { if (oldMode != mode) { try { displayRoute(startPoint, endPoint, mode); } catch (IllegalArgumentException e) { } catch (Exception e1) { } } } } @Override public void onClick(View v) { // 计算路径 if (calculateRoute.equals(v)) { if (selectPointStart != null && selectPointEnd != null) { startPoint = selectPointStart.getStartPoint(); endPoint = selectPointEnd.getEndPoint(); } else if (selectPointStart == null && selectPointEnd != null) { endPoint = selectPointEnd.getEndPoint(); } else if (selectPointStart != null && selectPointEnd == null) { startPoint = selectPointStart.getStartPoint(); } try { mv.getOverlays().clear(); displayRoute(startPoint, endPoint, mode); } catch (IllegalArgumentException e) { } catch (Exception e1) { } setModeBackResource(mode); } // POISearch if (setSearch.equals(v)) { calculateRoute.setClickable(true); Intent intent = new Intent(Main.this, SearchInput.class); Bundle dle = new Bundle(); dle.putString("start", startStr); dle.putString("end", endStr); dle.putString("mode", String.valueOf(mode)); intent.putExtras(dle); if (routeOverlay != null) { routeOverlay.removeFromMap(mv); } Main.this.startActivityForResult(intent, REQUESTCODE); } // 自驾模式 if (driving.equals(v)) { if (modeClick) { mode = Route.DrivingDefault; reCalculate(mode, startPoint, endPoint); } } // 公交模式 if (bus.equals(v)) { if (modeClick) { mode = Route.BusDefault; reCalculate(mode, startPoint, endPoint); } } // 步行模式 if (walk.equals(v)) { if (modeClick) { mode = Route.WalkDefault; reCalculate(mode, startPoint, endPoint); } } // MapView 点击选择起点 if (popupDipStart != null && popupDipStart.equals(v)) { startPoint = tempPoint; Intent intent = new Intent(Main.this, SearchInput.class); Bundle dle = new Bundle(); dle.putString("start", POINT_IN_MAP); dle.putString("end", endStr); dle.putString("mode", String.valueOf(mode)); intent.putExtras(dle); mv.removeView(popupDipStart); Main.this.startActivityForResult(intent, REQUESTCODE); // MapView 点击选择终点 } else if (popupDipEnd != null && popupDipEnd.equals(v)) { endPoint = tempPoint; Intent intent = new Intent(Main.this, SearchInput.class); Bundle dle = new Bundle(); dle.putString("start", startStr); dle.putString("end", POINT_IN_MAP); dle.putString("mode", String.valueOf(mode)); intent.putExtras(dle); mv.removeView(popupDipEnd); Main.this.startActivityForResult(intent, REQUESTCODE); } } }; @Ov