百度地图api以及定位api的开发实现定位功能

首先，通过百度地图api的主页点击Android SDK申请一个key,按照百度首页操作即可.另本文主要是讲解如何创建一个android的定位功能,首先创建一个工程，导入百度api的包文件，按照百度地图官网操作即可.下面贴出代码配置 AndroidManifest.xml 加入一些相关操作权限以及该应用对于百度地图api的支持，

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.maylor.demo"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="19" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >          <service            android:name="com.baidu.location.f"            android:enabled="true"            android:process=":remote" >        </service>        <activity            android:name="com.maylor.demo.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </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>

另外要设置activity_main.xml文件，加入地图控件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" > <com.baidu.mapapi.map.MapView android:id="@+id/bmapsView"                      android:layout_width="fill_parent"                      android:layout_height="fill_parent"                      android:clickable="true" />  </RelativeLayout>

最后就是MainActivity.java的代码了

package com.maylor.demo;import android.app.Activity;import android.content.Context;import android.graphics.drawable.Drawable;import android.os.Bundle;import android.util.AttributeSet;import android.util.Log;import android.view.Menu;import android.view.MotionEvent;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.RadioGroup;import android.widget.RadioGroup.OnCheckedChangeListener;import android.widget.TextView;import android.widget.Toast;import com.maylor.demo.R;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.MyLocationOverlay.LocationMode;import com.baidu.mapapi.map.PopupClickListener;import com.baidu.mapapi.map.PopupOverlay;import com.baidu.platform.comapi.basestruct.GeoPoint;/** * 此demo用来展示如何结合定位SDK实现定位，并使用MyLocationOverlay绘制定位位置 同时展示如何使用自定义图标绘制并点击时弹出泡泡 *  */public class MainActivity extends Activity {// 定位相关LocationClient mLocClient;LocationData locData = null;public MyLocationListenner myListener = new MyLocationListenner();// 定位图层MyLocationOverlay myLocationOverlay = null;// 弹出泡泡图层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MapView mMapView = null; // 地图Viewprivate MapController mMapController = null;// UI相关BMapManager mBMapManager = null;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);/** * 使用地图sdk前需先初始化BMapManager. BMapManager是全局的，可为多个MapView共用，它需要地图模块创建前创建， * 并在地图地图模块销毁后销毁，只要还有地图模块在使用，BMapManager就不应该销毁 */mBMapManager = new BMapManager(getApplicationContext());/** * 如果BMapManager没有初始化则初始化BMapManager */mBMapManager.init("8qWmg6SZMeDL3o5GEwWPE9vc", null);setContentView(R.layout.activity_main);// 地图初始化mMapView = (MapView) findViewById(R.id.bmapsView);mMapController = mMapView.getController();mMapView.getController().setZoom(14);mMapView.getController().enableClick(true);mMapView.setBuiltInZoomControls(true);// 定位初始化mLocClient = new LocationClient(this);locData = new LocationData();mLocClient.registerLocationListener(myListener);LocationClientOption option = new LocationClientOption();option.setOpenGps(true);// 打开gpsoption.setCoorType("bd09ll"); // 设置坐标类型option.setScanSpan(1000);mLocClient.setLocOption(option);mLocClient.start();if (!mLocClient.isStarted()) {mLocClient.start();mLocClient.requestLocation();} else {mLocClient.requestLocation();}mLocClient.requestLocation();// 定位图层初始化myLocationOverlay = new MyLocationOverlay(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();mMapView.getController().animateTo(new GeoPoint((int) (locData.latitude * 1e6),(int) (locData.longitude * 1e6)));}/** * 定位SDK监听函数 */public class MyLocationListenner implements BDLocationListener {@Overridepublic 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// 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)));}public void onReceivePoi(BDLocation poiLocation) {if (poiLocation == null) {return;}}}@Overrideprotected void onPause() {mMapView.onPause();super.onPause();}@Overrideprotected void onResume() {mMapView.onResume();super.onResume();}@Overrideprotected void onDestroy() {// 退出时销毁定位if (mLocClient != null)mLocClient.stop();mMapView.destroy();super.onDestroy();}@Overrideprotected void onSaveInstanceState(Bundle outState) {super.onSaveInstanceState(outState);mMapView.onSaveInstanceState(outState);}@Overrideprotected void onRestoreInstanceState(Bundle savedInstanceState) {super.onRestoreInstanceState(savedInstanceState);mMapView.onRestoreInstanceState(savedInstanceState);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// getMenuInflater().inflate(R.menu.activity_main, menu);return true;}}

实体机安装即可