AndroidStudio下加入百度地图的使用（四）——路线规划

上一章中我们已经完成了API常用的方法及常量属性的使用,这一章向大家介绍一下地图的重要功能-路线规划。

(1) 定义API中的路线查询类:

RoutePlanSearch  mSearch = RoutePlanSearch.newInstance();
mSearch.drivingSearch().;//驾车路线
mSearch.transitSearch();//公交路线
mSearch.walkingSearch();//步行路线

(2) 设置起点和终点

PlanNode stNode = PlanNode.withCityNameAndPlaceName("",“”)      PlanNode  enNode  =  PlanNode.withCityNameAndPlaceName("", “”);

(3) 实现OnGetRoutePlanResultListener监听

当路线结果发生变化的时候要重写 驾车路线 公交路线 步行路线这3个方法

public void onGetTransitRouteResult(TransitRouteResult result) {}
public void onGetWalkingRouteResult(WalkingRouteResult result) {}
public void onGetDrivingRouteResult(DrivingRouteResult result) {}

效果:



下面我们来具体使用一下

第一步:编写布局,没有什么特殊的地方

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="起点：" />
<EditText
android:id="@+id/start"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:ems="10"
android:text="烟台莱山区科技大厦" >
<requestFocus />
</EditText>
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="终点：" />
<EditText
android:id="@+id/end"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:ems="10"
android:text="烟台大学" >
<requestFocus />
</EditText>
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dip"
android:layout_marginTop="5dip"
android:orientation="horizontal" >
<Button
android:id="@+id/drive"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:onClick="SearchButtonProcess"
android:text="驾车搜索" />
<Button
android:id="@+id/transit"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:onClick="SearchButtonProcess"
android:text="公交搜索" />
<Button
android:id="@+id/walk"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:onClick="SearchButtonProcess"
android:text="步行搜索" />
</LinearLayout>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<com.baidu.mapapi.map.MapView
android:id="@+id/map"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:clickable="true" />
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:layout_alignWithParentIfMissing="false"
android:layout_marginRight="10dp"
android:layout_marginTop="10dip"
android:orientation="vertical" >
<Button
android:id="@+id/customicon"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="10dip"
android:layout_weight="1.0"
android:onClick="changeRouteIcon"
android:text="自定义起终点图标" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignWithParentIfMissing="false"
android:layout_centerHorizontal="true"
android:layout_centerVertical="false"
android:layout_marginBottom="10dip" >
<Button
android:id="@+id/pre"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:background="@drawable/pre_"
android:onClick="nodeClick" />
<Button
android:id="@+id/next"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginLeft="2dip"
android:layout_marginRight="2dip"
android:layout_weight="1.0"
android:background="@drawable/next_"
android:onClick="nodeClick" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>

第二步: 在Activity中实现功能(完整代码)

package com.jerehedu.administrator.baidumapapplication;
import android.app.Activity;
import android.location.Geocoder;
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.SDKInitializer;
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.MapStatus;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationConfigeration;
import com.baidu.mapapi.model.LatLng;

import com.baidu.mapapi.overlayutil.DrivingRouteOvelray;
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;
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;

//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;

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SDKInitializer.initialize(getApplicationContext());
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();

//设定中心点坐标
LatLng cenpt = new LatLng(37.52,121.39);
//定义地图状态
MapStatus mMapStatus = new MapStatus.Builder()
.target(cenpt)
.build();
//定义MapStatusUpdate对象，以便描述地图状态将要发生的变化
MapStatusUpdate mMapStatusUpdate = MapStatusUpdateFactory.newMapStatus(mMapStatus);
//改变地图状态
mBaidumap.setMapStatus(mMapStatusUpdate);
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("烟台", editSt.getText().toString());
PlanNode enNode = PlanNode.withCityNameAndPlaceName("烟台", 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("烟台")
.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,null));

}

/**
* 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);
DrivingRouteOvelray 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 DrivingRouteOvelray {

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;
}
}

@Override
public void onMapClick(LatLng point) {
mBaidumap.hideInfoWindow();
}

@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();
}
}

百度地图的重要使用功能都已介绍完毕,希望大家在使用的时候有好的使用方法和效果时可以一起分享

作者：杰瑞教育
出处：http://www.cnblogs.com/jerehedu/
版权声明：本文版权归烟台杰瑞教育科技有限公司和博客园共有，欢迎转载，但未经作者同意必须保留此段声明，且在文章页面明显位置给出原文连接，否则保留追究法律责任的权利。

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