启用NETWORK_PROVIDER的LocationListener的，但是，onLocationChanged不会被调用 [英] LocationListener of NETWORK_PROVIDER is enabled but , onLocationChanged is never called
问题描述
我开发，获取手机的位置整天在6,6分钟服务的应用程序，它工作正常，但有时该方法 OnLocationChanged 的网络提供商监听器停止被调用，我不知道为什么。
I am developing an application that gets position of the cell phone all day long in 6 and 6 minutes in a service, it works fine but sometimes the method OnLocationChanged of the Network provider listener stop to being called, and I don't know why.
由于某种原因停止被调用，但提供允许且李斯特是工作，当我启用或手动禁用提供商， onProviderEnabled 和 onProviderDisabled 之称。
It for some reason stop being called, but the Provider is enable and the Lister is working, when I Enable or disable the Provider manually, onProviderEnabled and onProviderDisabled is called.
这只是与 NETWORK_PROVIDER 发生， GPS_PROVIDER 效果很好。
It just happens with NETWORK_PROVIDER, the GPS_PROVIDER works well.
监听器：
LocationListener locationListenerGPS = new LocationListener() {
// @Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO locationListenerGPS onStatusChanged
Log.d(TAG, "Provedor trocado");
}
// @Override
public void onProviderEnabled(String provider) {
Log.w(TAG, "PROVEDOR " + provider + " HABILITADO!");
}
// @Override
public void onProviderDisabled(String provider) {
Log.w(TAG, "PROVEDOR " + provider + " DESABILITADO!");
}
// @Override
public void onLocationChanged(Location location) {
longitudeGPS = location.getLongitude();
latitudeGPS = location.getLatitude();
Log.d(TAG,"LocationChangedGPS LAT: "+latitudeGPS+" longi: "+longitudeGPS);
gpsComSinal = true;
}
};
LocationListener locationListenerNET = new LocationListener() {
// @Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO locationListenerNET onStatusChanged
Log.d("Contele", "Provedor foi mudado");
}
// @Override
public void onProviderEnabled(String provider) {
Log.i(TAG, "PROVEDOR " + provider + " HABILITADO!");
}
// @Override
public void onProviderDisabled(String provider) {
Log.i(TAG, "PROVEDOR " + provider + " DESABILITADO!");
}
@Override
public void onLocationChanged(Location location) {
longitudeNET = location.getLongitude();
latitudeNET = location.getLatitude();
Log.d(TAG,"LocationChangedNET LAT: "+latitudeNET+" longi: "+longitudeNET);
netComSinal = true;
}
};
code：
Code:
public void initProviders() {
localizacao = (LocationManager) getApplicationContext().getSystemService(LOCATION_SERVICE);
localizacao.removeUpdates(locationListenerNET);
localizacao.removeUpdates(locationListenerGPS);
localizacao.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0,
locationListenerGPS);
localizacao.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0,
0, locationListenerNET);
Log.d(TAG,"EsperaGPS");
Handler esperaGPS = new Handler() {
public void handleMessage(Message msg) {
requestGPS();
}
};
Message msgEsperaGPS = Message.obtain();
msgEsperaGPS.what = 0;
esperaGPS.sendMessageDelayed(msgEsperaGPS, 35000);
}
public void requestGPS() {
if (gpsComSinal) {
Log.d(TAG,"PEGO SINAL DE GPS");
rastreio = "GPS";
longitude = longitudeGPS;
latitude = latitudeGPS;
Log.d(TAG, "Utilizando provedor GPS.");
localizacao.removeUpdates(locationListenerGPS);
localizacao.removeUpdates(locationListenerNET);
} else {
Log.d(TAG,"Sem GPS... pegar NEt");
// Setando os valores para usar network
localizacao.removeUpdates(locationListenerGPS);
localizacao.removeUpdates(locationListenerNET);
localizacao
.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
0, 0, locationListenerNET);
Log.d(TAG,"EsperaNET");
requestNET();
}
}
public void requestNET() {
if (netComSinal) {
Log.d(TAG,"PEGO SINAL DE NET");
rastreio = "NET";
longitude = longitudeNET;
latitude = latitudeNET;
Log.d(TAG, "Utilizando provedor NET.");
localizacao.removeUpdates(locationListenerNET);
} else {
localizacao.removeUpdates(locationListenerGPS);
localizacao.removeUpdates(locationListenerNET);
Log.d(TAG,"Sem sinal");
}
}
在三星Galaxy S3报告：
Report in a Samsung Galaxy S3:
仍然得到教统局局长打了个平手，连续4天。
Still getting "Sem sinal" for 4 days in a row.
这个问题已经发生了与银河Y和LG的Optimus L5
This issue have already happened with Galaxy Y and LG Optimus l5
我已经做了另一个测试，看看是否有其他aplications得到了净持仓，而我发现，他们通过对同样的问题，他们无法获得的净头寸只是GetLastknowLocation;来测试我使用了银河S3这个问题，我禁用了GPS提供商。 （在地狱犬测试）。
I have made another test to see if other aplications got the NET positions, and I discovered that they are passing for the same problem, they can't get the NET position just the GetLastknowLocation; to test that I used a Galaxy S3 with this problem, and I disabled the GPS Provider. (Tested in Cerberus).
我找不到为什么NETWORKSLOCATIONS监听器停止给位置任何解释，但也可能是因为它不应该为2〜3天没有停止工作。
I couldn't find any explanation for why NETWORKSLOCATIONS listener stop giving positions, but it might be because it shouldn't work for 2 or 3 days without stop.
我已经做了与其他aplications一些测试，看看这个问题，只是发生的事情与我aplication，我发现，他们正在通过为同样的问题，像在地狱犬，例如：
I have done some tests with other aplications to see if this issue is just happening with my aplication, and I discovered that they are passing for same problem, like in Cerberus for example :
我禁用了手机（银河S3）与教统局局长打了个平手问题的GPS供应商，一起来看看：
I disable the GPS Provider in a cellphone (Galaxy S3) with the "Sem sinal" problem, take a look:
我的报告：
My report:
和赛伯乐（在14/05/2013拍摄打印）报告：
And Cerberus(print taken in 14/05/2013) report:
不过，当我打开谷歌地图似乎工作好，我想移动到距离的地方，看它是否会显示 GetLastknowLocation ，但没有，谷歌地图把我的时刻在正确的地方，让我意识到，谷歌地图使用motionevent移动我的地图;
But When I opened the Google Maps it seems to work OK, I tried to move to a distance place to see if it going to show the GetLastknowLocation , but no, google maps put me in the right place in the moment, so I realized that Google Maps was using motionevent to move me in the map;
和同时打印谷歌地图的日志来获得NetWorkProvider：
And also print the Log of Google Maps to get NetWorkProvider:
通常情况下：
教统局局长打了个平手情况：
Sem sinal case:
推荐答案
我曾经历过类似问题的网络提供商和唯一的解决办法是力装置重启。 虽然谷歌地图是显示总是正确的位置，因为它采用其他传感器的信息也除了网络位置提供商。
i have experienced similar issues with Network provider and only solution was force device restart. Though google map was showing always correct location, because it uses other sensors information also apart from Network location provider.
但在这里是好消息，不是很长一段时间回谷歌推出了通过其的 谷歌播放服务框架 这是超级容易比GPS /网络位置提供商使用。
But here is good news, not Long time back Google introduced Fused Location Provider api's via its Google Play Service Framework which is super easy to use than GPS / Network Location providers.
支持高达API级别8，现在当我得到这个奇怪的问题网络供应商，同时融合位置给我准确的定位（不重新启动设备）。
Compatible upto API Level 8, now when i get this weird issue of Network provider, same time Fused Location gives me accurate location(without device restart).
我已经COMMITED一个工作 FusedLocation测试项目在这里 ，您可以克隆和测试自己..
I have commited one working FusedLocation Test Project here, you can clone and test yourself..
下面是code片断： -
Below is snippet of code:-
package com.example.fusedLoctionTest.service;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient;
import com.google.android.gms.location.LocationClient;
import com.google.android.gms.location.LocationRequest;
public class FusedLocationService extends Service implements GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener, com.google.android.gms.location.LocationListener{
private static final LocationRequest REQUEST = LocationRequest.create()
.setInterval(0)
.setFastestInterval(0)
.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
public static final String LOCATION_RECEIVED = "fused.location.received";
private Long now;
private LocationClient mLocationClient;
private final Object locking = new Object();
private Runnable onFusedLocationProviderTimeout;
private Handler handler = new Handler();
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
super.onStartCommand(intent, flags, startId);
now = Long.valueOf(System.currentTimeMillis());
mLocationClient = new LocationClient(this, this, this);
mLocationClient.connect();
return START_STICKY;
}
@Override
public void onConnected(Bundle bundle) {
Log.d("FusedLocationService", "Fused Location Provider got connected successfully");
mLocationClient.requestLocationUpdates(REQUEST,this);
onFusedLocationProviderTimeout = new Runnable() {
public void run() {
Log.d("FusedLocationService", "location Timeout");
Location lastbestStaleLocation=getLastBestStaleLocation();
sendLocationUsingBroadCast(lastbestStaleLocation);
if(lastbestStaleLocation!=null)
Log.d("FusedLocationService", "Last best location returned ["+lastbestStaleLocation.getLatitude()+","+lastbestStaleLocation.getLongitude()+"] in "+(Long.valueOf(System.currentTimeMillis())-now)+" ms");
if(mLocationClient.isConnected())
mLocationClient.disconnect();
}
};
handler.postDelayed(onFusedLocationProviderTimeout, 20000);//20 sec
}
private void sendLocationUsingBroadCast(Location location) {
Intent locationBroadcast = new Intent(FusedLocationService.LOCATION_RECEIVED);
locationBroadcast.putExtra("LOCATION", location);
locationBroadcast.putExtra("TIME", Long.valueOf(System.currentTimeMillis()-now) +" ms");
LocalBroadcastManager.getInstance(this).sendBroadcast(locationBroadcast);
stopSelf();
}
@Override
public void onDisconnected() {
Log.d("FusedLocationService","Fused Location Provider got disconnected successfully");
stopSelf();
}
@Override
public void onLocationChanged(Location location) {
synchronized (locking){
Log.d("FusedLocationService", "Location received successfully ["+location.getLatitude()+","+location.getLongitude()+"] in "+(Long.valueOf(System.currentTimeMillis()-now))+" ms");
handler.removeCallbacks(onFusedLocationProviderTimeout);
if(mLocationClient.isConnected())
mLocationClient.removeLocationUpdates(this);
sendLocationUsingBroadCast(location);
if(mLocationClient.isConnected())
mLocationClient.disconnect();
}
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Log.d("FusedLocationService", "Error connecting to Fused Location Provider");
}
public Location getLastBestStaleLocation() {
Location bestResult = null;
LocationManager locMgr = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
Location lastFusedLocation=mLocationClient.getLastLocation();
Location gpsLocation = locMgr.getLastKnownLocation(LocationManager.GPS_PROVIDER);
Location networkLocation = locMgr.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (gpsLocation != null && networkLocation != null) {
if (gpsLocation.getTime() > networkLocation.getTime())
bestResult = gpsLocation;
} else if (gpsLocation != null) {
bestResult = gpsLocation;
} else if (networkLocation != null) {
bestResult = networkLocation;
}
//take Fused Location in to consideration while checking for last stale location
if (bestResult != null && lastFusedLocation != null) {
if (bestResult.getTime() < lastFusedLocation.getTime())
bestResult = lastFusedLocation;
}
return bestResult;
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
这篇关于启用NETWORK_PROVIDER的LocationListener的，但是，onLocationChanged不会被调用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
