在 android 中使用带有移动数据的 Google Play 服务 API 无法获取位置更新

Question

我正在制作一个 android 应用程序来通过服务获取当前位置并使用 Google Play 服务融合 API 上传到数据库，但我面临的问题是，每当我试图通过我的家庭 wifi 获取位置时，它工作正常，我是定期更新位置，但是当我切换到移动数据时，我没有得到正确的更新，定期更新在那里，但无论我在移动，它一次又一次地显示相同的坐标值，即纬度和经度。请帮我解决这个问题，因为我是 android 开发的新手。

这是我的 Myservices.java，我有所有必要的代码：

package com.maps.saury.location;


import android.Manifest;
import android.app.Service;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.util.Log;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;

public class Myservice extends Service implements ConnectionCallbacks,
        OnConnectionFailedListener, LocationListener {


    BGTask bgtask = new BGTask(this);

    public static String data;

    private static final String TAG = MainActivity.class.getSimpleName();

    private static Location mLastLocation;

    private GoogleApiClient mGoogleApiClient;

    private  LocationRequest mLocationRequest;

    // Location updates intervals in sec
    private static int UPDATE_INTERVAL = 100; 
    private static int FATEST_INTERVAL = 100; 
    private static int DISPLACEMENT = 0; 

    final class Mythreadclass implements Runnable {



        @Override
        public void run() {

            mLocationRequest.setInterval(UPDATE_INTERVAL);
            mLocationRequest.setFastestInterval(FATEST_INTERVAL);
            mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
            mLocationRequest.setSmallestDisplacement(DISPLACEMENT);

        }
    }



    @Override
    public void onCreate() {
        super.onCreate();

        buildGoogleApiClient();
        createLocationRequest();
        mGoogleApiClient.connect();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        if (mGoogleApiClient != null) {
            mGoogleApiClient.connect();
        }
        Thread thread = new Thread(new Mythreadclass());
        thread.start();

        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        if (mGoogleApiClient.isConnected()) {
            mGoogleApiClient.disconnect();
        }
        Toast.makeText(this,"destroyed",Toast.LENGTH_SHORT).show();
        super.onDestroy();
    }


    private void displayLocation() {


       // mLastLocation = LocationServices.FusedLocationApi
         //       .getLastLocation(mGoogleApiClient);

        if (mLastLocation != null) {
            double latitude = mLastLocation.getLatitude();
            double longitude = mLastLocation.getLongitude();
            data=Double.toString(latitude)+"\n"+Double.toString(longitude);
            Toast.makeText(this,data,Toast.LENGTH_SHORT).show();

            BGTask bgtask = new BGTask(this);
            bgtask.execute(Double.toString(latitude), Double.toString(longitude));

        } else {


                    Toast.makeText(this,"Couldn't get the location. Make sure location is enabled on the device",Toast.LENGTH_SHORT).show();
        }
    }



    protected synchronized void buildGoogleApiClient() {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API).build();
    }

    /**
     * Creating location request object
     * */
    protected void createLocationRequest() {
        mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(UPDATE_INTERVAL);
        mLocationRequest.setFastestInterval(FATEST_INTERVAL);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        mLocationRequest.setSmallestDisplacement(DISPLACEMENT);
    }


    protected void startLocationUpdates() {
       mGoogleApiClient.connect();

        LocationServices.FusedLocationApi.requestLocationUpdates(
                mGoogleApiClient, mLocationRequest, this);

    }


    protected void stopLocationUpdates() {
        LocationServices.FusedLocationApi.removeLocationUpdates(
                mGoogleApiClient, this);
    }


    @Override
    public void onConnectionFailed(ConnectionResult result) {
        Log.i(TAG, "Connection failed: ConnectionResult.getErrorCode() = "
                + result.getErrorCode());
    }

    @Override
    public void onConnected(Bundle arg0) {

        // Once connected with google api, get the location
        Toast.makeText(this,"connected",Toast.LENGTH_SHORT).show();
        startLocationUpdates();
    }

    @Override
    public void onConnectionSuspended(int arg0) {
        mGoogleApiClient.connect();
    }

    @Override
    public void onLocationChanged(Location location) {
        // Assign the new location
        mLastLocation = location;


        Toast.makeText(getApplicationContext(), "Locatn changed!",
                Toast.LENGTH_SHORT).show();

        // Displaying the new location on UI
        displayLocation();
    }


    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

这是我的 AndroidMainfest.xml ：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.maps.saury.location">
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service android:name=".Myservice"/>
    </application>

</manifest>

Answer 1

我想当您在家/办公室以调试模式运行它时，位置更新正在进入，如果您构建应用程序的发布版本并走出去，那么位置更新不会进入。如果这是情况下，然后确保为“发布”构建变体定义了正确的 Google Maps API 密钥。