下面实现通过百度SDK获取地理位置和天气信息,请参考百度开发文档
1. 在相关下载最新的库文件。将so文件的压缩文件解压出来,把对应架构下的so文件放入开发者自己APP的对应架构下的文件夹中,建议全部放入, 程序兼容性会大大提升,将locSDK_5.X.jar文件拷贝到工程的libs目录下,这样您就可以在程序中使用百度定位SDK了。
2. 设置AndroidManifest.xml
在application标签中声明service组件,每个app拥有自己单独的定位service
<service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote">
</service>
【重要提醒】
定位SDKv3.1版本之后,以下权限已不需要,请取消声明,否则将由于Android 5.0多帐户系统加强权限管理而导致应用安装失败。
<uses-permission android:name="android.permission.BAIDU_LOCATION_SERVICE"></uses-permission>
3.声明使用权限
<span style="font-family:SimSun;font-size:14px;"><!-- 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></span>
设置AcessKey
使用SDK5.0需要在Mainfest.xml设置Accesskey,设置有误会引起定位和地理围栏服务不能正常使用,必须进行Accesskey的正确设置。
设置AccessKey,在application标签中加入
<meta-data
android:name="com.baidu.lbsapi.API_KEY"
android:value="key" /> //key:开发者申请的key
相关功能类的使用,请参看百度开发文档,附上自己写的获取地理位置和天气 LocationService.java:
package com.lenovo.realvideocamera.service;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.annotation.SuppressLint;
import android.app.Service;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.text.TextUtils;
import android.util.Log;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.location.LocationClientOption.LocationMode;
import com.lenovo.realvideocamera.R;
import com.lenovo.realvideocamera.util.DateUtil;
import com.lenovo.realvideocamera.util.FileUtil;
import com.lenovo.realvideocamera.util.HttpUtil;
import com.lenovo.realvideocamera.util.ImageUtil;
/**
* 地理位置、天气Service
* @author Jackie
*
*/
public class LocationService extends Service implements BDLocationListener {
private String TAG = "LocationService";
public LocationClient locationClient; //百度地图定位Client
private BDLocation bdLocation; //百度地图定位信息
private Bitmap weatherBitmap; //天气缩略图bitmap
@Override
public IBinder onBind(Intent intent) {
Log.i(TAG, "onBind");
return null;
}
@Override
public void onCreate() {
super.onCreate();
Log.i(TAG, "onCreate");
}
@SuppressWarnings("deprecation")
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
Log.i(TAG, "onStart");
initLocation();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
if (locationClient != null) {
locationClient.stop();
}
super.onDestroy();
}
/**
* @author Jackie
* 百度地图定位初始化
*/
private void initLocation() {
locationClient = new LocationClient(this);
locationClient.registerLocationListener(this); //设置地图定位回调监听
LocationClientOption option = new LocationClientOption();
option.setLocationMode(LocationMode.Hight_Accuracy);//设置定位模式 Hight_Accuracy高精度、Battery_Saving低功耗、Device_Sensors仅设备(GPS)
option.setCoorType("gcj02");//返回的定位结果是百度经纬度,默认值gcj02 国测局经纬度坐标系gcj02、百度墨卡托坐标系bd09、百度经纬度坐标系bd09ll
option.setIsNeedAddress(true);//返回的定位结果包含地址信息
//option.setScanSpan(5000);//设置发起定位请求的间隔时间为5000ms 不设置或设置数值小于1000ms标识只定位一次
//option.setNeedDeviceDirect(true);//返回的定位结果包含手机机头的方向
locationClient.setLocOption(option);
locationClient.start();
}
@Override
public void onReceiveLocation(BDLocation location) {
if (null == location) {
if (bdLocation != null) {
bdLocation = null;
}
Log.d(TAG, "定位失败:location is null");
return;
}
/**
* 61 : GPS定位结果
* 62 : 扫描整合定位依据失败。此时定位结果无效。
* 63 : 网络异常,没有成功向服务器发起请求。此时定位结果无效。
* 65 : 定位缓存的结果。
* 66 : 离线定位结果。通过requestOfflineLocaiton调用时对应的返回结果
* 67 : 离线定位失败。通过requestOfflineLocaiton调用时对应的返回结果
* 68 : 网络连接失败时,查找本地离线定位时对应的返回结果
* 161: 表示网络定位结果
* 162~167: 服务端定位失败
* 502:key参数错误
* 505:key不存在或者非法
* 601:key服务被开发者自己禁用
* 602:key mcode不匹配
* 501~700:key验证失败
*/
int code = location.getLocType();
if (code == 161) {
this.bdLocation = location;
String city = location.getCity();
double latitude = location.getLatitude();
double lontitude = location.getLongitude();
String address = location.getAddrStr();
Log.d(TAG, "city " + city + ",(latitude,lontitude) (" + latitude + "," + lontitude + "),address " + address);
requestWeather();
} else {
if (bdLocation != null) {
bdLocation = null;
}
Log.d(TAG, "定位失败:code=" + code);
}
}
/**
*
* @author Jackie
* 获取天气
*
* @param view
*/
@SuppressLint("HandlerLeak")
private void requestWeather() {
final Handler myHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg == null) {
return;
}
JSONObject object = (JSONObject) msg.obj;
try {
int code = object.getInt("error");
String states = object.getString("status");
if (code == 0 && states.equals("success")) {
JSONArray results = object.getJSONArray("results");
JSONObject resultObj = results.getJSONObject(0);
JSONArray weatherArray = resultObj.getJSONArray("weather_data");
JSONObject weatherObj = weatherArray.getJSONObject(0);
String dayPictureUrl = weatherObj.getString("dayPictureUrl");
String nightPictureUrl = weatherObj.getString("nightPictureUrl");
//TODO 增加日间、夜间的判断
int tag = DateUtil.judgeAmOrPm();
if (tag == 0) { //上午
getWeatherBitmap(dayPictureUrl);
} else { //下午
getWeatherBitmap(nightPictureUrl);
}
} else {
Log.d(TAG, "天气信息获取失败,code=" + code);
}
} catch (JSONException e) {
Log.d(TAG, "天气信息Json解析错误");
e.printStackTrace();
}
super.handleMessage(msg);
}
};
new Thread(new Runnable() {
public void run() {
JSONObject result = getWeatherJson();
Message msg = Message.obtain();
msg.obj = result;
myHandler.sendMessage(msg);
}
private JSONObject getWeatherJson() {
// TODO location获取成功调用requestWeather 所以不存在location为空的情况
String city = bdLocation.getCity();
if (city.contains("市")) {
city.replace("市", "");
}
//拼凑百度天气请求的完整url
StringBuffer url = new StringBuffer();
url.append(getString(R.string.url_weather));
url.append(city);
url.append("&output=json&ak=");
url.append(getString(R.string.baidu_server_key));
return HttpUtil.getJsonObjectResult(url.toString(), null);
}
}).start();
}
/**
* 获取图片url对应的bitmap
* @return
*/
@SuppressLint("HandlerLeak")
private void getWeatherBitmap(final String url) {
final Handler myHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
if (msg == null) {
return;
}
weatherBitmap = (Bitmap) msg.obj;
Log.d(TAG, "weatherBitmap convert ok!");
mergeBitmap();
super.handleMessage(msg);
stopSelf();
}
};
new Thread(new Runnable() {
public void run() {
Bitmap bitmap = ImageUtil.getNetImage(url, 1);
Message msg = Message.obtain();
msg.obj = bitmap;
myHandler.sendMessage(msg);
}
}).start();
}
private String fileName = "location_weather.jpg";
/**
* 合并天气、地理位置为bitmap
* @param bitmap
* @param str
* @return
*/
private Bitmap mergeBitmap() {
if (bdLocation == null && weatherBitmap == null) {
return null;
}
Bitmap mergeBitmap = null;
if (bdLocation != null && weatherBitmap != null) {
mergeBitmap = ImageUtil.mergeBitmap(this, weatherBitmap, TextUtils.isEmpty(bdLocation.getAddrStr())?"":bdLocation.getAddrStr());
} else if (bdLocation != null){
mergeBitmap = ImageUtil.convertFontBitmap(this, TextUtils.isEmpty(bdLocation.getAddrStr())?"":bdLocation.getAddrStr());
}
// save 操作
//String filePath = FileUtil.saveBitmap(fileName, mergeBitmap);
String filePath = FileUtil.saveBitmap(fileName, mergeBitmap);
//Intent intent = new Intent(getString(R.string.location_receiver));
//intent.putExtra("mergeBitmap", mergeBitmap);
//intent.putExtra("fileName", fileName);
//getApplication().sendBroadcast(intent);
SharedPreferences mSharedPreferences = getSharedPreferences("real_video_camera", 0);
SharedPreferences.Editor mEditor = mSharedPreferences.edit();
mEditor.putString(getString(R.string.key_location_file_path), filePath);
mEditor.commit();
Log.d(TAG, "mergeBitmap ok");
return mergeBitmap;
}
}
标签:定位,bdLocation,地理位置,location,msg,import,null,百度,SDK From: https://blog.51cto.com/u_11407799/5914596