本文介绍了如何在Android应用中使用百度地图API进行定位，并显示位置信息。包括了项目结构、key的获取步骤、代码实现细节，以及可能遇到的问题。虽然在debug模式下运行正常，但在某些情况下可能会显示异常。建议参考百度地图官方demo以获取更详细信息和更多功能。
- 项目结构图
2.key的获取
3.代码实现
BaiduMapActivity.java
package com.barricelli.map;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.map.LocationData;
import com.baidu.mapapi.map.MapController;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationOverlay;
import com.baidu.mapapi.map.PopupClickListener;
import com.baidu.mapapi.map.PopupOverlay;
import com.baidu.mapapi.search.MKAddrInfo;
import com.baidu.mapapi.search.MKBusLineResult;
import com.baidu.mapapi.search.MKDrivingRouteResult;
import com.baidu.mapapi.search.MKPoiResult;
import com.baidu.mapapi.search.MKSearch;
import com.baidu.mapapi.search.MKSearchListener;
import com.baidu.mapapi.search.MKShareUrlResult;
import com.baidu.mapapi.search.MKSuggestionResult;
import com.baidu.mapapi.search.MKTransitRouteResult;
import com.baidu.mapapi.search.MKWalkingRouteResult;
import com.baidu.platform.comapi.basestruct.GeoPoint;
public class BaiduMapActivity extends Activity {
//定位相关
public MyLocationListenner myListener = new MyLocationListenner();
private LocationClient client= null;
private LocationData locData =null;
private BMapManager mBMapMan = null;
//定位图层
locationOverlay myLocationOverlay = null;
//弹出泡泡图层
private PopupOverlay pop = null;//弹出泡泡图层，浏览节点时使用
private TextView popupText = null;//泡泡view
private View viewCache = null;
//地图相关，使用继承MapView的MyLocationMapView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
MyLocationMapView mMapView = null; // 地图View
private MapController mMapController = null;
//搜索相关
MKSearch mSearch = null; // 搜索模块，也可去掉地图模块独立使用
//UI相关
boolean refreshLoc = true; //更新
private Button loc = null;//定位按钮
private String locText = "当前位置"; //泡泡跳起显示位置
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mBMapMan=new BMapManager(getApplication());
mBMapMan.init("Y9rq9hrIyx55uz4LbS1dhFfx", null);
//注意：请在试用setContentView前初始化BMapManager对象，否则会报错
setContentView(R.layout.activity_baidu_map);
CharSequence titleLable="定位功能";
setTitle(titleLable);
loc = (Button)findViewById(R.id.loc);
OnClickListener locClickListener = new OnClickListener() {
public void onClick(View v) {
requestLocClick();
}
};
loc.setOnClickListener(locClickListener);
//地图初始化
mMapView = (MyLocationMapView)findViewById(R.id.bmapsView);
mMapController = mMapView.getController();
mMapView.getController().setZoom(14);
mMapView.getController().enableClick(true);
mMapView.setBuiltInZoomControls(true);
// 初始化搜索模块，注册事件监听
mSearch = new MKSearch();
mSearch.init(mBMapMan, new MyMKSearchListener());
//创建 弹出泡泡图层
createPaopao();
//定位初始化
client = new LocationClient( this );
locData = new LocationData();
client.registerLocationListener( myListener );
LocationClientOption option = new LocationClientOption();
option.setOpenGps(true);//打开gps
option.setCoorType("bd09ll"); //设置坐标类型LocationManager
option.setScanSpan(1000);
client.setLocOption(option);
client.start();
//定位图层初始化
myLocationOverlay = new locationOverlay(mMapView);
//设置定位数据
myLocationOverlay.setData(locData);
//添加定位图层
mMapView.getOverlays().add(myLocationOverlay);
myLocationOverlay.enableCompass();
//修改定位数据后刷新图层生效
mMapView.refresh();
}
/**
* 手动触发一次定位请求
*/
public void requestLocClick(){
refreshLoc = true;
client.requestLocation();
Toast.makeText(BaiduMapActivity.this, "正在定位……", Toast.LENGTH_SHORT).show();
}
//继承MyLocationOverlay重写dispatchTap实现点击处理
public class locationOverlay extends MyLocationOverlay{
public locationOverlay(MapView mapView) {
super(mapView);
// TODO Auto-generated constructor stub
}
@Override
protected boolean dispatchTap() {
// TODO Auto-generated method stub
//处理点击事件,弹出泡泡
popupText.setBackgroundResource(R.drawable.popup);
popupText.setText(locText);
pop.showPopup(BMapUtil.getBitmapFromView(popupText),
new GeoPoint((int)(locData.latitude*1e6), (int)(locData.longitude*1e6)),
8);
return true;
}
}
/**
* 创建弹出泡泡图层
*/
public void createPaopao(){
viewCache = getLayoutInflater().inflate(R.layout.custom_text_view, null);
popupText =(TextView) viewCache.findViewById(R.id.textcache);
//泡泡点击响应回调
PopupClickListener popListener = new PopupClickListener(){
@Override
public void onClickedPopup(int index) {
Log.v("click", "clickapoapo");
}
};
pop = new PopupOverlay(mMapView,popListener);
MyLocationMapView.pop = pop;
}
/**
* 定位SDK监听函数
*/
private class MyLocationListenner implements BDLocationListener {
@Override
public void onReceiveLocation(BDLocation location) {
if (location == null)
return ;
locData.latitude = location.getLatitude();
locData.longitude = location.getLongitude();
//如果不显示定位精度圈，将accuracy赋值为0即可
locData.accuracy = location.getRadius();
// 此处可以设置 locData的方向信息, 如果定位 SDK 未返回方向信息，用户可以自己实现罗盘功能添加方向信息。
locData.direction = location.getDerect();
//更新定位数据
myLocationOverlay.setData(locData);
//更新图层数据执行刷新后生效
mMapView.refresh();
//是手动触发请求或首次定位时，移动到定位点
if (refreshLoc){
//移动地图到定位点
Log.d("LocationOverlay", "receive location, animate to it");
mMapController.animateTo(new GeoPoint((int)(locData.latitude* 1e6), (int)(locData.longitude * 1e6)));
}
//首次定位完成
refreshLoc = false;
mSearch.reverseGeocode(new GeoPoint((int)(locData.latitude* 1e6), (int)(locData.longitude * 1e6)));
}
public void onReceivePoi(BDLocation poiLocation) {
if (poiLocation == null){
return ;
}
}
}
/**
* 实现MKSearchListener接口,用于实现异步搜索服务，得到搜索结果
* @author
*
*/
class MyMKSearchListener implements MKSearchListener {
@Override
public void onGetAddrResult(MKAddrInfo arg0, int arg1) {
// TODO Auto-generated method stub
if(arg0 != null) {
GeoPoint point = arg0.geoPt;
locText = "地址：" + arg0.strAddr + ",坐标："
+ point.getLatitudeE6() + "," + point.getLongitudeE6();
}
}
@Override
public void onGetBusDetailResult(MKBusLineResult arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void onGetDrivingRouteResult(MKDrivingRouteResult arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void onGetPoiDetailSearchResult(int arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void onGetPoiResult(MKPoiResult arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onGetShareUrlResult(MKShareUrlResult arg0, int arg1,
int arg2) {
// TODO Auto-generated method stub
}
@Override
public void onGetSuggestionResult(MKSuggestionResult arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void onGetTransitRouteResult(MKTransitRouteResult arg0, int arg1) {
// TODO Auto-generated method stub
}
@Override
public void onGetWalkingRouteResult(MKWalkingRouteResult arg0, int arg1) {
// TODO Auto-generated method stub
}
}
@Override
protected void onPause() {
mMapView.onPause();
super.onPause();
}
@Override
protected void onResume() {
mMapView.onResume();
super.onResume();
}
@Override
protected void onDestroy() {
//退出时销毁定位
if (client != null)
client.stop();
mMapView.destroy();
super.onDestroy();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mMapView.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mMapView.onRestoreInstanceState(savedInstanceState);
}
}
/**
* 继承MapView重写onTouchEvent实现泡泡处理操作
* @author
*
*/
class MyLocationMapView extends MapView{
static PopupOverlay pop = null;//弹出泡泡图层，点击图标使用
public MyLocationMapView(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public MyLocationMapView(Context context, AttributeSet attrs){
super(context,attrs);
}
public MyLocationMapView(Context context, AttributeSet attrs, int defStyle){
super(context, attrs, defStyle);
}
@Override
public boolean onTouchEvent(MotionEvent event){
if (!super.onTouchEvent(event)){
//消隐泡泡
if (pop != null && event.getAction() == MotionEvent.ACTION_UP)
pop.hidePop();
}
return true;
}
}
BMapUtil.java
package com.barricelli.map;
import android.graphics.Bitmap;
import android.view.View;
public class BMapUtil {
/**
* 从view 得到图片
* @param view
* @return
*/
public static Bitmap getBitmapFromView(View view) {
view.destroyDrawingCache();
view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
view.setDrawingCacheEnabled(true);
Bitmap bitmap = view.getDrawingCache(true);
return bitmap;
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.barricelli.map"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.barricelli.map.BaiduMapActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name="com.baidu.location.f"
android:enabled="true"
android:process=":remote" >
</service>
</application>
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
<uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
<permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
</permission>
<uses-permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" >
</uses-permission>
<uses-permission android:name="android.permission.INTERNET" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" >
</uses-permission>
<!-- <uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission> -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
</uses-permission>
<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
<uses-permission android:name="android.permission.WAKE_LOCK" >
</uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.SEND_SMS" />
<!-- SDK1.5需要android.permission.GET_TASKS权限判断本程序是否为当前运行的应用? -->
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.CAMERA" >
</uses-permission>
<uses-permission android:name="android.permission.RECORD_AUDIO" >
</uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
</uses-permission>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="android.permission.BROADCAST_STICKY" />
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<!-- 来电消音 -->
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" >
</uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="false"
android:resizeable="true"
android:smallScreens="true" />
</manifest>4.效果展示
~~~~~~~~不清楚为什么会这样？本人手机debug的时候是正常的。此处不截取手机地图。~~~~~~~~~~~~
5.源代码下载
找半天没找到？尴尬、、
ps:百度地图demo有更详细的说明，更多功能，初学者也可以参照下。
扫一扫
613
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
