关于Android自带的定位处理

工作需要这里对Android自带定位做个小小的记录，GPS测试过可用，网络的，需要再次测试，但是方式都差不多，简单总结如下。

1、首先需要添加权限

　　<!-- 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>
<!-- 这个权限用于进行网络定位-->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>
<!--网络权限-->
<uses-permission android:name="android.permission.INTERNET" />

2、然后推荐在服务里做定位处理MyService可以继承Location网上很多，这里不再继承 LocationListener 了，继承的方法有很多上面有链接。

主要代码实现如下

要使用的参数

private LocationManager mLocationManager;
private Location mLocation;
private double lat = 0;
private double lng = 0;
private double alt = 0;
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 刷新距离10m
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 5; // 5 秒

onCreate方法里

@Override
public void onCreate() {
super.onCreate();
PDALogger.d("onCreate");
ctx = PdaApplication.getInstance();
getLocation();//读取手机端GPS
mHandler.postDelayed(uploadGPSRunnable, 3000);
}

下面是这个方法getLocation()，划线部分可要可不要

public Location getLocation() {
mLocationManager = (LocationManager) ctx.getSystemService(LOCATION_SERVICE);
// getting GPS status
boolean isGPSEnabled = mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
boolean isNetworkEnabled = mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
}
//get the location by gps
if (isGPSEnabled) {
if (mLocation == null) {
mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, mGPSLocationListener);
PDALogger.d("GPS Enabled");
if(mLocationManager!=null){
mLocation = mLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
}
}
} else if (isNetworkEnabled) {// First get location from Network Provider
if(mLocation==null){
mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, mNetWorkLocationListener);
PDALogger.d("Network");
if(mLocationManager!=null){
mLocation = mLocationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
}
}

}
return mLocation;
}

这里是两个监听器GPS和网络的

/**
* GPS定位监听器
*/
public final LocationListener mGPSLocationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
updateToNewLocation(location);
}

@Override
public void onProviderDisabled(String provider) {
updateToNewLocation(null);
}

@Override
public void onProviderEnabled(String provider) {
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};

/**
* 网络定位监听器
*/
public final LocationListener mNetWorkLocationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
updateToNewLocation(location);
}

@Override
public void onProviderDisabled(String provider) {
updateToNewLocation(null);
}

@Override
public void onProviderEnabled(String provider) {
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};

定位数据保存，划线处可不要

/**
* 定位数据随时保存
* @param location
* @return
*/
private Location updateToNewLocation(Location location) {
String latLongString;
if (location != null) {
lat = location.getLatitude();
lng = location.getLongitude();
alt = location.getAltitude();
latLongString = "\n纬度:" + lat + "\n经度:" + lng + "\n海拔:" + alt;
PDALogger.d(latLongString);
mLocation = mLocation;
} else {
PDALogger.d("无法获取地理信息，请稍后...");
}
return location;
}

上面就是整个代码使用的方式了，下面是整个Service代码

package com.xvli.comm;

import android.Manifest;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.support.v4.app.ActivityCompat;

import com.xvli.application.PdaApplication;
import com.xvli.utils.PDALogger;

public class MyService extends Service {
private Context ctx;
private LocationManager mLocationManager;
private Location mLocation;
private double lat = 0;
private double lng = 0;
private double alt = 0;
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 刷新距离10m
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 5; // 5 秒

public MyService() {
}

Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
switch (msg.what) {
case 1:
PDALogger.d("onCreate");
}
}
};

@Override
public IBinder onBind(Intent intent) {
// TODO: Return the communication channel to the service.
throw new UnsupportedOperationException("Not yet implemented");
}

@Override
public void onCreate() {
super.onCreate();
PDALogger.d("onCreate");
ctx = PdaApplication.getInstance();
getLocation();//读取手机端GPS
mHandler.postDelayed(uploadGPSRunnable, 3000);
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
PDALogger.d("onStartCommand");
return super.onStartCommand(intent, flags, startId);
}

@Override
public void onDestroy() {
super.onDestroy();
PDALogger.d("onDestroy");
if (uploadGPSRunnable != null) {
mHandler.removeCallbacks(uploadGPSRunnable);
}

//=================================
//关闭定位监听器
if (mLocationManager != null) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mLocationManager.removeUpdates(mGPSLocationListener);
mLocationManager.removeUpdates(mNetWorkLocationListener);
mLocationManager = null;
}

}

@Override
public boolean onUnbind(Intent intent) {
PDALogger.d("onUnbind");
return super.onUnbind(intent);
}

@Override
public void onRebind(Intent intent) {
PDALogger.d("onRebind");
super.onRebind(intent);
}
//============================================================================
Runnable uploadGPSRunnable = new Runnable() {
@Override
public void run() {
PDALogger.d("这里上传GPS:经度："+lat+",维度："+lng+",海拔："+alt);
mHandler.postDelayed(this, Config.GPSTIME * 1000);
}
};

/**
* GPS定位监听器
*/
public final LocationListener mGPSLocationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
updateToNewLocation(location);
}

@Override
public void onProviderDisabled(String provider) {
updateToNewLocation(null);
}

@Override
public void onProviderEnabled(String provider) {
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};

/**
* 网络定位监听器
*/
public final LocationListener mNetWorkLocationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
updateToNewLocation(location);
}

@Override
public void onProviderDisabled(String provider) {
updateToNewLocation(null);
}

@Override
public void onProviderEnabled(String provider) {
}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};

/**
* 定位数据随时保存
* @param location
* @return
*/
private Location updateToNewLocation(Location location) {
String latLongString;
if (location != null) {
lat = location.getLatitude();
lng = location.getLongitude();
alt = location.getAltitude();
latLongString = "\n纬度:" + lat + "\n经度:" + lng + "\n海拔:" + alt;
PDALogger.d(latLongString);
mLocation = mLocation;
} else {
PDALogger.d("无法获取地理信息，请稍后...");
}
return location;
}

public Location getLocation() {
mLocationManager = (LocationManager) ctx.getSystemService(LOCATION_SERVICE);
// getting GPS status
boolean isGPSEnabled = mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
boolean isNetworkEnabled = mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
}
//get the location by gps
if (isGPSEnabled) {
if (mLocation == null) {
mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, mGPSLocationListener);
PDALogger.d("GPS Enabled");
if(mLocationManager!=null){
mLocation = mLocationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
}
}
} else if (isNetworkEnabled) {// First get location from Network Provider
if(mLocation==null){
mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, mNetWorkLocationListener);
PDALogger.d("Network");
if(mLocationManager!=null){
mLocation = mLocationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
}
}

}
return mLocation;
}

}

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