android 基于百度地图api开发定位以及获取详细地址

一：百度地图开发必须要到百度开发平台android开发api下载相应的库，已经申请百度地图开发key，在这个博客里面有详细的说明和演示，（如果不懂得请看此文章）http://104zz.iteye.com/blog/1680781

二：新建项目baidumaplocation.设计main.xml文件这里注意的是MapView控件必须使用来自百度库封装好的com.baidu.mapapi.MapView。设计代码如下：

Xml代码

<?xmlversion="1.0"encoding="utf-8"?>
<LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<FrameLayout
android:id="@+id/map_layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<com.baidu.mapapi.MapView
android:id="@+id/map_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="0Mg_koWoyZUiYLfZxmPfp4LKInB5LqTnagYueaw"
android:clickable="true"
android:enabled="true"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
android:paddingBottom="105dip">
<TextView
android:id="@+id/map_bubbleText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/location_tips"
android:gravity="left|center"
android:maxEms="12"
android:paddingLeft="12dip"
android:paddingRight="10dip"
android:text="@string/load_tips"
android:textColor="#cfcfcf"
android:textSize="14sp"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical">
<ImageView
android:id="@+id/point_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="30dip"
android:src="@drawable/point_start"/>
</LinearLayout>
</FrameLayout>
</LinearLayout>

三：创建覆盖整个地图捕捉触控事件的MyMapOverlay继承Overlay

Java代码

importandroid.view.MotionEvent;
importcom.baidu.mapapi.GeoPoint;
importcom.baidu.mapapi.MapView;
importcom.baidu.mapapi.Overlay;
//覆盖整个地图捕捉触控事件的OverLay
publicabstractclassMyMapOverlayextendsOverlay{
privateintpoint_X;
privateintpoint_Y;
privateGeoPointnewPoint;
publicMyMapOverlay(intx,inty){
point_X=x;
point_Y=y;
}
booleanflagMove=false;
//这里实现根据地图移动时重新获取屏幕中心点的经纬度坐标
@Override
publicbooleanonTouchEvent(MotionEventevent,MapViewmapView){
System.out.println("X->"+event.getX()+":"+point_X);
System.out.println("Y->"+event.getY()+":"+point_Y);
if(event.getAction()==MotionEvent.ACTION_DOWN){
changePoint(newPoint,1);
}elseif(event.getAction()==MotionEvent.ACTION_UP){
newPoint=mapView.getProjection().fromPixels(point_X,point_Y);
changePoint(newPoint,2);
}
returnfalse;
}
publicabstractvoidchangePoint(GeoPointnewPoint,inttype);
}

四：LocationActivity类继承百度库的MapActivity以及实现LocationListener接口，代码如下：

package com.location.activity;

Java代码

importjava.io.IOException;
importjava.util.List;
importjava.util.Locale;
importandroid.content.Intent;
importandroid.location.Address;
importandroid.location.Geocoder;
importandroid.location.Location;
importandroid.os.Bundle;
importandroid.os.Handler;
importandroid.os.Message;
importandroid.view.View;
importandroid.view.Window;
importandroid.widget.TextView;
importcom.android.map.MyMapOverlay;
importcom.baidu.mapapi.BMapManager;
importcom.baidu.mapapi.GeoPoint;
importcom.baidu.mapapi.LocationListener;
importcom.baidu.mapapi.MKAddrInfo;
importcom.baidu.mapapi.MKBusLineResult;
importcom.baidu.mapapi.MKDrivingRouteResult;
importcom.baidu.mapapi.MKLocationManager;
importcom.baidu.mapapi.MKPoiResult;
importcom.baidu.mapapi.MKSearch;
importcom.baidu.mapapi.MKSearchListener;
importcom.baidu.mapapi.MKSuggestionResult;
importcom.baidu.mapapi.MKTransitRouteResult;
importcom.baidu.mapapi.MKWalkingRouteResult;
importcom.baidu.mapapi.MapActivity;
importcom.baidu.mapapi.MapController;
importcom.baidu.mapapi.MapView;
importcom.baidu.mapapi.Overlay;
publicclassLocationActivityextendsMapActivityimplementsLocationListener{
privateMapViewmapView;
privateMapControllermMapCtrl;
privateList<Overlay>mapOverlays;
publicGeoPointlocPoint;
privateMyMapOverlaymOverlay;
privateTextViewdesText;
privateStringlost_tips;
privateintpoint_X;
privateintpoint_Y;
publicfinalintMSG_VIEW_LONGPRESS=10001;
publicfinalintMSG_VIEW_ADDRESSNAME=10002;
publicfinalintMSG_GONE_ADDRESSNAME=10003;
privateIntentmIntent;
privateintmLatitude;
privateintmLongitude;
privateStringname;
privateBMapManagermapManager;
privateMKLocationManagermLocationManager=null;
privatebooleanisLoadAdrr=true;
privateMKSearchmMKSearch;
@Override
publicvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
initMap();
mIntent=getIntent();
mLatitude=mIntent.getIntExtra("latitude",0);
mLongitude=mIntent.getIntExtra("longitude",0);
name=mIntent.getStringExtra("name");
mapView=(MapView)findViewById(R.id.map_view);
desText=(TextView)this.findViewById(R.id.map_bubbleText);
lost_tips=getResources().getString(R.string.load_tips);
if(mLatitude!=0&&mLongitude!=0){
locPoint=newGeoPoint((int)(mLatitude*1E6),
(int)(mLongitude*1E6));
desText.setText(name);
}
mapView.setBuiltInZoomControls(true);
mapView.setClickable(true);
mMapCtrl=mapView.getController();
point_X=this.getWindowManager().getDefaultDisplay().getWidth()/2;
point_Y=this.getWindowManager().getDefaultDisplay().getHeight()/2;
mOverlay=newMyMapOverlay(point_X,point_Y){
@Override
publicvoidchangePoint(GeoPointnewPoint,inttype){
if(type==1){
mHandler.sendEmptyMessage(MSG_GONE_ADDRESSNAME);
}else{
locPoint=newPoint;
mHandler.sendEmptyMessage(MSG_VIEW_LONGPRESS);
}
}
};
mapOverlays=mapView.getOverlays();
if(mapOverlays.size()>0){
mapOverlays.clear();
}
mapOverlays.add(mOverlay);
mMapCtrl.setZoom(20);
}
privatevoidinitMap(){
//初始化MapActivity
mapManager=newBMapManager(getApplication());
//init方法的第一个参数需填入申请的APIKey
mapManager.init("C66C0501D0280744759A6957C42543AE38F5D540",null);
super.initMapActivity(mapManager);
//实例化搜索地址类
mMKSearch=newMKSearch();
//初始化搜索地址实例
mMKSearch.init(mapManager,newMySearchListener());
mLocationManager=mapManager.getLocationManager();
//注册位置更新事件
mLocationManager.requestLocationUpdates(this);
//使用GPS定位
mLocationManager
.enableProvider((int)MKLocationManager.MK_GPS_PROVIDER);
}
@Override
protectedvoidonResume(){
if(mapManager!=null){
mapManager.start();
}
super.onResume();
}
@Override
protectedvoidonPause(){
isLoadAdrr=false;
if(mapManager!=null){
mapManager.stop();
}
super.onPause();
}
@Override
protectedbooleanisRouteDisplayed(){
//TODOAuto-generatedmethodstub
returnfalse;
}
/**
*通过经纬度获取地址
*
*@parampoint
*@return
*/
privateStringgetLocationAddress(GeoPointpoint){
Stringadd="";
GeocodergeoCoder=newGeocoder(getBaseContext(),Locale.getDefault());
try{
List<Address>addresses=geoCoder.getFromLocation(
point.getLatitudeE6()/1E6,point.getLongitudeE6()/1E6,
1);
Addressaddress=addresses.get(0);
intmaxLine=address.getMaxAddressLineIndex();
if(maxLine>=2){
add=address.getAddressLine(1)+address.getAddressLine(2);
}else{
add=address.getAddressLine(1);
}
}catch(IOExceptione){
add="";
e.printStackTrace();
}
returnadd;
}
privateHandlermHandler=newHandler(){
@Override
publicvoidhandleMessage(Messagemsg){
switch(msg.what){
caseMSG_VIEW_LONGPRESS://处理长按时间返回位置信息
{
if(null==locPoint)
return;
mMKSearch.reverseGeocode(locPoint);
desText.setVisibility(View.VISIBLE);
desText.setText(lost_tips);
mMapCtrl.animateTo(locPoint);
mapView.invalidate();
}
break;
caseMSG_VIEW_ADDRESSNAME:
desText.setText((String)msg.obj);
desText.setVisibility(View.VISIBLE);
break;
caseMSG_GONE_ADDRESSNAME:
desText.setVisibility(View.GONE);
break;
}
}
};
//关闭程序也关闭定位
@Override
protectedvoidonDestroy(){
if(mapManager!=null){
mapManager.destroy();
mapManager=null;
}
super.onDestroy();
}
/**
*根据MyLocationOverlay配置的属性确定是否在地图上显示当前位置
*/
@Override
protectedbooleanisLocationDisplayed(){
returnfalse;
}
/**
*当位置发生变化时触发此方法
*
*@paramlocation
*当前位置
*/
publicvoidonLocationChanged(Locationlocation){
if(location!=null){
locPoint=newGeoPoint((int)(location.getLatitude()*1E6),
(int)(location.getLongitude()*1E6));
mHandler.sendEmptyMessage(MSG_VIEW_LONGPRESS);
}
}
/**
*内部类实现MKSearchListener接口,用于实现异步搜索服务
*
*@authorliufeng
*/
publicclassMySearchListenerimplementsMKSearchListener{
/**
*根据经纬度搜索地址信息结果
*
*@paramresult
*搜索结果
*@paramiError
*错误号（0表示正确返回）
*/
publicvoidonGetAddrResult(MKAddrInforesult,intiError){
if(result==null){
return;
}
Messagemsg=newMessage();
msg.what=MSG_VIEW_ADDRESSNAME;
msg.obj=result.strAddr;
mHandler.sendMessage(msg);
}
/**
*驾车路线搜索结果
*
*@paramresult
*搜索结果
*@paramiError
*错误号（0表示正确返回）
*/
publicvoidonGetDrivingRouteResult(MKDrivingRouteResultresult,
intiError){
}
/**
*POI搜索结果（范围检索、城市POI检索、周边检索）
*
*@paramresult
*搜索结果
*@paramtype
*返回结果类型（11,12,21:poi列表7:城市列表）
*@paramiError
*错误号（0表示正确返回）
*/
publicvoidonGetPoiResult(MKPoiResultresult,inttype,intiError){
}
/**
*公交换乘路线搜索结果
*
*@paramresult
*搜索结果
*@paramiError
*错误号（0表示正确返回）
*/
publicvoidonGetTransitRouteResult(MKTransitRouteResultresult,
intiError){
}
/**
*步行路线搜索结果
*
*@paramresult
*搜索结果
*@paramiError
*错误号（0表示正确返回）
*/
publicvoidonGetWalkingRouteResult(MKWalkingRouteResultresult,
intiError){
}
publicvoidonGetBusDetailResult(MKBusLineResultarg0,intarg1){
//TODOAuto-generatedmethodstub
}
publicvoidonGetSuggestionResult(MKSuggestionResultarg0,intarg1){
//TODOAuto-generatedmethodstub
}
}
}

五：在AndroidManifest.xml住添加相关的访问权限

Xml代码

<uses-permissionandroid:name="android.permission.INTERNET"/>
<uses-permissionandroid:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permissionandroid:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permissionandroid:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permissionandroid:name="android.permission.CHANGE_WIFI_STATE"/>
<uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permissionandroid:name="android.permission.READ_PHONE_STATE"/>

六：运行结果如下图：

android 基于百度地图api开发定位以及获取详细地址

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