Android calls Baidu map api to realize positioning.
Several notes:
1. When importing the package, be sure to copy the folders outside the package to libs.
2.SDKInitializer.initialize(getApplicationContext()); This sentence is in front of setContentView(R.layout.activity_main); It will be deadly
3. It is best to use all the files under libs in the demo
4. The key must be correct, otherwise Can't get the map The specific key application depends on the official website description, which must be consistent with the package name and digital signature.
5. To change the package name, you must apply for key again
// file main.java
package com.example.mapbyzj;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationConfiguration;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.map.MyLocationConfiguration.LocationMode;
import com.baidu.mapapi.model.LatLng;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.Window;
public class MainActivity extends Activity {
private LocationClient mLocClient;
private LocationMode mCurrentMode;
public MyLocationListenner myListener = new MyLocationListenner();
BitmapDescriptor mCurrentMarker;
MapView mMapView;
BaiduMap mBaiduMap;
boolean isFirstLoc=true;
//public MyLocationListenner myListener=new My
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SDKInitializer.initialize(getApplicationContext());
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
mCurrentMode = LocationMode.NORMAL;
mMapView=(MapView)findViewById(R.id.bmapView);
mBaiduMap=mMapView.getMap();
mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
mBaiduMap.setMyLocationEnabled(true);
mLocClient=new LocationClient(this);
mBaiduMap
.setMyLocationConfigeration(new MyLocationConfiguration(
mCurrentMode, true, mCurrentMarker));
mLocClient.registerLocationListener(myListener);
LocationClientOption option=new LocationClientOption();
option.setOpenGps(true);
option.setCoorType("bd09ll");
option.setScanSpan(1000);
mLocClient.setLocOption(option);
mLocClient.start();
}
public class MyLocationListenner implements BDLocationListener {
@Override
public void onReceiveLocation(BDLocation location) {
// map view 销毁后不在处理新接收的位置
if (location == null || mMapView == null)
return;
MyLocationData locData = new MyLocationData.Builder()
.accuracy(location.getRadius())
// 此处设置开发者获取到的方向信息，顺时针0-360
.direction(100).latitude(location.getLatitude())
.longitude(location.getLongitude()).build();
mBaiduMap.setMyLocationData(locData);
if (isFirstLoc) {
isFirstLoc = false;
LatLng ll = new LatLng(location.getLatitude(),
location.getLongitude());
MapStatusUpdate u = MapStatusUpdateFactory.newLatLng(ll);
mBaiduMap.animateMapStatus(u);
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@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
mLocClient.stop();
// 关闭定位图层
mBaiduMap.setMyLocationEnabled(false);
mMapView.onDestroy();
mMapView = null;
super.onDestroy();
}
}
//File main.Mainfest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mapbyzj"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.INTERNET" >
</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" />
<!-- 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.WRITE_EXTERNAL_STORAGE" >
</uses-permission>
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<!-- 这个权限用于进行网络定位-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
<!-- 这个权限用于访问GPS定位-->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
<!-- 用于访问wifi网络信息，wifi信息会用于进行网络定位-->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<!-- 获取运营商信息，用于支持提供运营商信息相关的接口-->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>
<!-- 这个权限用于获取wifi的获取权限，wifi信息会用来进行网络定位-->
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
<!-- 用于读取手机当前的状态-->
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
<!-- 写入扩展存储，向扩展卡写入数据，用于写入离线定位数据-->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
<!-- 访问网络，网络定位需要上网-->
<uses-permission android:name="android.permission.INTERNET" />
<!-- SD卡读取权限，用户写入离线定位数据-->
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"></uses-permission>
<!--允许应用读取低级别的系统日志文件 -->
<uses-permission android:name="android.permission.READ_LOGS"></uses-permission>
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="10" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data
android:name="com.baidu.lbsapi.API_KEY"
android:value="XQRoGlchURwWcv3GPAhXxDsm" />
<activity
android:name="com.example.mapbyzj.MainActivity"
android:configChanges="orientation|keyboardHidden"
android:screenOrientation="portrait"
android:label="@string/app_name"
android:theme="@android:style/Theme.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="false"
android:resizeable="true"
android:smallScreens="true" />
</manifest>