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View
private MapController mMapController = null;

// UI相关
BMapManager mBMapManager = null;

@Override
public 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gps
option.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 {

@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
// 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;
}
}
}

@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 (mLocClient != null)
mLocClient.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);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}

}


实体机安装即可