百度地图SDK-----实现简单路线规划功能思路分析
2015-02-08 23:50
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实现路线规划功能根据官方文档可以分几个步骤实现,接下来就根据 官方文档 解释每个步骤代码所在的位置,从而理清思路。
官方文档
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我们现在再来结合代码来看一下 代码是BaiduMapsAPIDemo中代码。
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最后贴上 源代码, 图片可以 结合着源代码 查看
官方文档
--------------------------------------------------------------------------------分割线--------------------------------------------------------------------------------------------------------------
我们现在再来结合代码来看一下 代码是BaiduMapsAPIDemo中代码。
-------------------------------------------------------------------------------------------------------分割线-----------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------分割线-----------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------分割线-----------------------------------------------------------------------------
最后贴上 源代码, 图片可以 结合着源代码 查看
package baidumapsdk.demo; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import com.baidu.mapapi.map.BaiduMap; import com.baidu.mapapi.map.BitmapDescriptor; import com.baidu.mapapi.map.BitmapDescriptorFactory; import com.baidu.mapapi.map.InfoWindow; import com.baidu.mapapi.map.MapPoi; import com.baidu.mapapi.map.MapStatusUpdateFactory; import com.baidu.mapapi.map.MapView; import com.baidu.mapapi.model.LatLng; import com.baidu.mapapi.overlayutil.DrivingRouteOverlay; import com.baidu.mapapi.overlayutil.OverlayManager; import com.baidu.mapapi.overlayutil.TransitRouteOverlay; import com.baidu.mapapi.overlayutil.WalkingRouteOverlay; import com.baidu.mapapi.search.core.RouteLine; import com.baidu.mapapi.search.core.SearchResult; import com.baidu.mapapi.search.route.DrivingRouteLine; import com.baidu.mapapi.search.route.DrivingRoutePlanOption; import com.baidu.mapapi.search.route.DrivingRouteResult; import com.baidu.mapapi.search.route.OnGetRoutePlanResultListener; import com.baidu.mapapi.search.route.PlanNode; import com.baidu.mapapi.search.route.RoutePlanSearch; import com.baidu.mapapi.search.route.TransitRouteLine; import com.baidu.mapapi.search.route.TransitRoutePlanOption; import com.baidu.mapapi.search.route.TransitRouteResult; import com.baidu.mapapi.search.route.WalkingRouteLine; import com.baidu.mapapi.search.route.WalkingRoutePlanOption; import com.baidu.mapapi.search.route.WalkingRouteResult; /** * 此demo用来展示如何进行驾车、步行、公交路线搜索并在地图使用RouteOverlay、TransitOverlay绘制 * 同时展示如何进行节点浏览并弹出泡泡 */ public class RoutePlanDemo extends Activity implements BaiduMap.OnMapClickListener, OnGetRoutePlanResultListener { // 浏览路线节点相关 Button mBtnPre = null;// 上一个节点 Button mBtnNext = null;// 下一个节点 int nodeIndex = -1;// 节点索引,供浏览节点时使用 RouteLine route = null; OverlayManager routeOverlay = null; boolean useDefaultIcon = false; private TextView popupText = null;// 泡泡view // 地图相关,使用继承MapView的MyRouteMapView目的是重写touch事件实现泡泡处理 // 如果不处理touch事件,则无需继承,直接使用MapView即可 MapView mMapView = null; // 地图View BaiduMap mBaidumap = null; // 搜索相关 RoutePlanSearch mSearch = null; // 搜索模块,也可去掉地图模块独立使用 protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_routeplan); CharSequence titleLable = "路线规划功能"; setTitle(titleLable); // 初始化地图 mMapView = (MapView) findViewById(R.id.map); mBaidumap = mMapView.getMap(); mBtnPre = (Button) findViewById(R.id.pre); mBtnNext = (Button) findViewById(R.id.next); mBtnPre.setVisibility(View.INVISIBLE); mBtnNext.setVisibility(View.INVISIBLE); // 地图点击事件处理 mBaidumap.setOnMapClickListener(this); // 初始化搜索模块,注册事件监听 mSearch = RoutePlanSearch.newInstance(); mSearch.setOnGetRoutePlanResultListener(this); } /** * 发起路线规划搜索示例 * * @param v */ public void SearchButtonProcess(View v) { // 重置浏览节点的路线数据 route = null; mBtnPre.setVisibility(View.INVISIBLE); mBtnNext.setVisibility(View.INVISIBLE); mBaidumap.clear(); // 处理搜索按钮响应 EditText editSt = (EditText) findViewById(R.id.start); EditText editEn = (EditText) findViewById(R.id.end); // 设置起终点信息,对于tranist search 来说,城市名无意义 PlanNode stNode = PlanNode.withCityNameAndPlaceName("北京", editSt .getText().toString()); PlanNode enNode = PlanNode.withCityNameAndPlaceName("北京", editEn .getText().toString()); // 实际使用中请对起点终点城市进行正确的设定 if (v.getId() == R.id.drive) { mSearch.drivingSearch((new DrivingRoutePlanOption()).from(stNode) .to(enNode)); } else if (v.getId() == R.id.transit) { mSearch.transitSearch((new TransitRoutePlanOption()).from(stNode) .city("北京").to(enNode)); } else if (v.getId() == R.id.walk) { mSearch.walkingSearch((new WalkingRoutePlanOption()).from(stNode) .to(enNode)); } } /** * 节点浏览示例 * * @param v */ public void nodeClick(View v) { if (route == null || route.getAllStep() == null) { return; } if (nodeIndex == -1 && v.getId() == R.id.pre) { return; } // 设置节点索引 if (v.getId() == R.id.next) { if (nodeIndex < route.getAllStep().size() - 1) { nodeIndex++; } else { return; } } else if (v.getId() == R.id.pre) { if (nodeIndex > 0) { nodeIndex--; } else { return; } } // 获取节结果信息 LatLng nodeLocation = null; String nodeTitle = null; Object step = route.getAllStep().get(nodeIndex); if (step instanceof DrivingRouteLine.DrivingStep) { nodeLocation = ((DrivingRouteLine.DrivingStep) step).getEntrace() .getLocation(); nodeTitle = ((DrivingRouteLine.DrivingStep) step).getInstructions(); } else if (step instanceof WalkingRouteLine.WalkingStep) { nodeLocation = ((WalkingRouteLine.WalkingStep) step).getEntrace() .getLocation(); nodeTitle = ((WalkingRouteLine.WalkingStep) step).getInstructions(); } else if (step instanceof TransitRouteLine.TransitStep) { nodeLocation = ((TransitRouteLine.TransitStep) step).getEntrace() .getLocation(); nodeTitle = ((TransitRouteLine.TransitStep) step).getInstructions(); } if (nodeLocation == null || nodeTitle == null) { return; } // 移动节点至中心 mBaidumap.setMapStatus(MapStatusUpdateFactory.newLatLng(nodeLocation)); // show popup popupText = new TextView(RoutePlanDemo.this); popupText.setBackgroundResource(R.drawable.popup); popupText.setTextColor(0xFF000000); popupText.setText(nodeTitle); mBaidumap.showInfoWindow(new InfoWindow(popupText, nodeLocation, 0)); } /** * 切换路线图标,刷新地图使其生效 注意: 起终点图标使用中心对齐. */ public void changeRouteIcon(View v) { if (routeOverlay == null) { return; } if (useDefaultIcon) { ((Button) v).setText("自定义起终点图标"); Toast.makeText(this, "将使用系统起终点图标", Toast.LENGTH_SHORT).show(); } else { ((Button) v).setText("系统起终点图标"); Toast.makeText(this, "将使用自定义起终点图标", Toast.LENGTH_SHORT).show(); } useDefaultIcon = !useDefaultIcon; routeOverlay.removeFromMap(); routeOverlay.addToMap(); } @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); } @Override public void onGetWalkingRouteResult(WalkingRouteResult result) { if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) { Toast.makeText(RoutePlanDemo.this, "抱歉,未找到结果", Toast.LENGTH_SHORT) .show(); } if (result.error == SearchResult.ERRORNO.AMBIGUOUS_ROURE_ADDR) { // 起终点或途经点地址有岐义,通过以下接口获取建议查询信息 // result.getSuggestAddrInfo() return; } if (result.error == SearchResult.ERRORNO.NO_ERROR) { nodeIndex = -1; mBtnPre.setVisibility(View.VISIBLE); mBtnNext.setVisibility(View.VISIBLE); route = result.getRouteLines().get(0); WalkingRouteOverlay overlay = new MyWalkingRouteOverlay(mBaidumap); mBaidumap.setOnMarkerClickListener(overlay); routeOverlay = overlay; overlay.setData(result.getRouteLines().get(0)); overlay.addToMap(); overlay.zoomToSpan(); } } @Override public void onGetTransitRouteResult(TransitRouteResult result) { if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) { Toast.makeText(RoutePlanDemo.this, "抱歉,未找到结果", Toast.LENGTH_SHORT) .show(); } if (result.error == SearchResult.ERRORNO.AMBIGUOUS_ROURE_ADDR) { // 起终点或途经点地址有岐义,通过以下接口获取建议查询信息 // result.getSuggestAddrInfo() return; } if (result.error == SearchResult.ERRORNO.NO_ERROR) { nodeIndex = -1; mBtnPre.setVisibility(View.VISIBLE); mBtnNext.setVisibility(View.VISIBLE); route = result.getRouteLines().get(0); TransitRouteOverlay overlay = new MyTransitRouteOverlay(mBaidumap); mBaidumap.setOnMarkerClickListener(overlay); routeOverlay = overlay; overlay.setData(result.getRouteLines().get(0)); overlay.addToMap(); overlay.zoomToSpan(); } } @Override public void onGetDrivingRouteResult(DrivingRouteResult result) { if (result == null || result.error != SearchResult.ERRORNO.NO_ERROR) { Toast.makeText(RoutePlanDemo.this, "抱歉,未找到结果", Toast.LENGTH_SHORT) .show(); } if (result.error == SearchResult.ERRORNO.AMBIGUOUS_ROURE_ADDR) { // 起终点或途经点地址有岐义,通过以下接口获取建议查询信息 // result.getSuggestAddrInfo() return; } if (result.error == SearchResult.ERRORNO.NO_ERROR) { nodeIndex = -1; mBtnPre.setVisibility(View.VISIBLE); mBtnNext.setVisibility(View.VISIBLE); route = result.getRouteLines().get(0); DrivingRouteOverlay overlay = new MyDrivingRouteOverlay(mBaidumap); routeOverlay = overlay; mBaidumap.setOnMarkerClickListener(overlay); overlay.setData(result.getRouteLines().get(0)); overlay.addToMap(); overlay.zoomToSpan(); } } // 定制RouteOverly private class MyDrivingRouteOverlay extends DrivingRouteOverlay { public MyDrivingRouteOverlay(BaiduMap baiduMap) { super(baiduMap); } @Override public BitmapDescriptor getStartMarker() { if (useDefaultIcon) { return BitmapDescriptorFactory.fromResource(R.drawable.icon_st); } return null; } @Override public BitmapDescriptor getTerminalMarker() { if (useDefaultIcon) { return BitmapDescriptorFactory.fromResource(R.drawable.icon_en); } return null; } } private class MyWalkingRouteOverlay extends WalkingRouteOverlay { public MyWalkingRouteOverlay(BaiduMap baiduMap) { super(baiduMap); } @Override public BitmapDescriptor getStartMarker() { if (useDefaultIcon) { return BitmapDescriptorFactory.fromResource(R.drawable.icon_st); } return null; } @Override public BitmapDescriptor getTerminalMarker() { if (useDefaultIcon) { return BitmapDescriptorFactory.fromResource(R.drawable.icon_en); } return null; } } private class MyTransitRouteOverlay extends TransitRouteOverlay { public MyTransitRouteOverlay(BaiduMap baiduMap) { super(baiduMap); } @Override public BitmapDescriptor getStartMarker() { if (useDefaultIcon) { return BitmapDescriptorFactory.fromResource(R.drawable.icon_st); } return null; } @Override public BitmapDescriptor getTerminalMarker() { if (useDefaultIcon) { return BitmapDescriptorFactory.fromResource(R.drawable.icon_en); } return null; } } // OnMapClickListener接口实现的方法 @Override public void onMapClick(LatLng point) { mBaidumap.hideInfoWindow(); } // OnMapClickListener接口实现的方法 @Override public boolean onMapPoiClick(MapPoi poi) { return false; } @Override protected void onPause() { mMapView.onPause(); super.onPause(); } @Override protected void onResume() { mMapView.onResume(); super.onResume(); } @Override protected void onDestroy() { mSearch.destroy(); mMapView.onDestroy(); super.onDestroy(); } }
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