使用Google Play服务位置的Android Service导致应用随机打开

Question

我有一项服务，该服务应捕获用户的位置和当前电池级别，并将其发送到我的Firebase后端。由于某种原因，每当我在应用程序中启用此服务时，我的应用程序都会随机打开，而无需任何用户互动（即使用户在另一个应用程序中，我的应用程序也会弹出）。有人知道为什么会发生这种情况吗？

这是我服务的代码：

import android.app.Service;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.BatteryManager;
import android.os.Bundle;
import android.os.IBinder;
import android.preference.PreferenceManager;
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.server.converter.StringToIntConverter;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import static android.R.attr.lines;
import static com.package.R.id.location;
import static com.package.R.id.view;
public class LocationBatteryService extends Service implements
    GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
    private String currentUser;
    private String city;
    private String country;
    private float batteryLevel;
    private int batteryLevelInt;
    protected GoogleApiClient mGoogleApiClient;
    protected LocationRequest mLocationRequest;
    protected Location mCurrentLocation;
    List<Address> addresses;
    Geocoder geocoder;


    @Override
    public void onCreate() {
        super.onCreate();
        buildGoogleApiClient();
    }
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
    protected synchronized void buildGoogleApiClient() {
        Log.i("TAG", "Building GoogleApiClient");
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
        createLocationRequest();
        mGoogleApiClient.connect();
    }

    protected void createLocationRequest() {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
        String locationSyncSettings = prefs.getString("location_sync_time", "");
        long intervalTime = 5;
        if(locationSyncSettings.equals("5 minutes")) {
            intervalTime = 5;
        }
        if (locationSyncSettings.equals("10 minutes")) {
            intervalTime = 10;
        }
        if (locationSyncSettings.equals("15 minutes")) {
            intervalTime = 15;
        }
        if (locationSyncSettings.equals("30 minutes")) {
            intervalTime = 30;
        }
        if (locationSyncSettings.equals("1 hour")) {
            intervalTime = 60;
        }
        mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(TimeUnit.MINUTES.toMillis(intervalTime));
        mLocationRequest.setFastestInterval(60000);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
    }

    @Override
    public void onConnected(Bundle connectionHint) {
        Log.i("TAG", "Connected to GoogleApiClient");
        try {
            LocationServices.FusedLocationApi.requestLocationUpdates(
                    mGoogleApiClient, mLocationRequest, this);
            mCurrentLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
            onLocationChanged(mCurrentLocation);
        }
        catch (SecurityException e){
            Log.d("TAG", "Error: " + e);
        }
    }
    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d("TAG", "You got destoryed mate");
    }
    @Override
    public void onLocationChanged(Location location) {
        updateLocationBackend(mCurrentLocation);
    }
    @Override
    public void onConnectionSuspended(int cause) {
        // The connection to Google Play services was lost for some reason. We call connect() to
        // attempt to re-establish the connection.
        Log.i("TAG", "Connection suspended");
        mGoogleApiClient.connect();
    }
    public void onTaskRemoved (Intent rootIntent){
        this.stopSelf();
    }
    @Override
    public void onConnectionFailed(ConnectionResult result) {
        // Refer to the javadoc for ConnectionResult to see what error codes might be returned in
        // onConnectionFailed.
        Log.i("TAG", "Connection failed: ConnectionResult.getErrorCode() = " + result.getErrorCode());
    }
    public float getBatteryLevel() {
        Intent batteryIntent = registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
        int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
        int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
        // Error checking that probably isn't needed but I added just in case.
        if(level == -1 || scale == -1) {
            return 50.0f;
        }
        return ((float)level / (float)scale) * 100.0f;
    }
    private void updateLocationBackend(final Location location) {
        Log.i("TAG", "Location and battery being updated");
        batteryLevel = getBatteryLevel();
        batteryLevelInt = Math.round(batteryLevel);
        // Get current user
        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        currentUser = sharedPrefs.getString("Username", "");
        // Get users added by you
        DatabaseReference ref = FirebaseDatabase.getInstance().getReferenceFromUrl(Passwords.FB_URL).child("Relations").child(currentUser);
        ref.addListenerForSingleValueEvent(
                new ValueEventListener() {
                    @Override
                    public void onDataChange(DataSnapshot dataSnapshot) {
                        // Get user value
                        for (DataSnapshot ds : dataSnapshot.getChildren()) {
                            final String contactNumber = ds.getKey();
         // Check to see if users added you
                            final DatabaseReference ref = FirebaseDatabase.getInstance().getReferenceFromUrl(Passwords.FB_URL).child("Contacts").child(contactNumber).child(currentUser);
                            ref.addListenerForSingleValueEvent(new ValueEventListener() {
                                @Override
                                public void onDataChange(DataSnapshot dataSnapshot) {
                                    if (!dataSnapshot.child("name").exists()) {
                                    // User has not added you so do not update location
                                    }
                                    // User has added you so update location
                                    else {
                                        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
                                        boolean contactLocationSetting = sharedPrefs.getBoolean(contactNumber + "_location_pref", true);
                                        Log.d("TAG", "ContactLocationSetting for " + contactNumber + " is equal to: " + contactLocationSetting);
                                        if (location != null && contactLocationSetting == true) {
                                            Map updateLocation = new HashMap();
                                            double latitude = location.getLatitude();
                                            double longitude = location.getLongitude();
                                            geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());
                                            try {
                                                addresses = geocoder.getFromLocation(latitude, longitude, 1); // Here 1 represent max location result to returned, by documents it recommended 1 to 5
                                            } catch (IOException e) {
                                                Log.e("TAG", "error is: " + e);
                                            }
                                            if (addresses.size() == 0) {
                                                // Do nothing
                                            } else {
                                                city = addresses.get(0).getLocality();
                                                country = addresses.get(0).getCountryName();
                                                // String knownName = addresses.get(0).getFeatureName(); // Only if available else return NULL
                                            }
                                            updateLocation.put("battery", batteryLevelInt);
                                            updateLocation.put("latitude", latitude);
                                            updateLocation.put("longitude", longitude);
                                            updateLocation.put("city", city);
                                            updateLocation.put("country", country);
                                            updateLocation.put("lastUpdated", System.currentTimeMillis());
                                            ref.updateChildren(updateLocation);
                                            Log.d("TAG", "Updated location for: " + contactNumber);
                                        }
                                    }
                                }
                                @Override
                                public void onCancelled(DatabaseError databaseError) {
                                }
                            });

                        }
                    }
                    @Override
                    public void onCancelled(DatabaseError databaseError) {
                        Log.w("TAG", "getUser:onCancelled", databaseError.toException());
                    }
                });
    }
}

这是我启动服务的代码：

import android.app.ActivityManager;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
    private Toolbar toolbar;
    private TabLayout tabLayout;
    public static ViewPager viewPager;
    public static ViewPagerAdapter adapter;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        String currentUser = sharedPrefs.getString("Username", null);
        if (currentUser == null) {
            // Take user to log in screen
            Log.d("TAG", "user needs to login");
            Intent intent = new Intent(this, MyIntro.class);
            startActivity(intent);
            finish();
        }
        else {
            // User already logged in
            setupMainActivity();
        }
    }
    @Override
    public void onResume() {
        super.onResume();
return;
    }
    private void setupViewPager(ViewPager viewPager) {
        adapter = new ViewPagerAdapter(getSupportFragmentManager());
        adapter.addFragment(new ChalkboardFragment(), getString(R.string.chalkboard_label));
        adapter.addFragment(new ContactsFragment(), getString(R.string.contacts_label));
        viewPager.setAdapter(adapter);
    }
    class ViewPagerAdapter extends FragmentPagerAdapter {
        private final List<Fragment> mFragmentList = new ArrayList<>();
        private final List<String> mFragmentTitleList = new ArrayList<>();
        public ViewPagerAdapter(FragmentManager manager) {
            super(manager);
        }
        @Override
        public Fragment getItem(int position) {
            switch (position) {
                case 0:
                    return new ChalkboardFragment();
                case 1:
                    return new ContactsFragment();
            }
            return null;
        }
        @Override
        public int getCount() {
            return mFragmentList.size();
        }
        public void addFragment(Fragment fragment, String title) {
            mFragmentList.add(fragment);
            mFragmentTitleList.add(title);
        }
        @Override
        public CharSequence getPageTitle(int position) {
            return mFragmentTitleList.get(position);
        }
    }
public void setupMainActivity() {
    setContentView(R.layout.activity_main);
    toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(false);
    viewPager = (ViewPager) findViewById(R.id.viewpager);
    setupViewPager(viewPager);
    tabLayout = (TabLayout) findViewById(R.id.tabs);
    tabLayout.setupWithViewPager(viewPager);
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
    boolean locationSetting = prefs.getBoolean("location_pref", false);
    Log.d("TAG", "location_pref " + locationSetting);
    if (isMyServiceRunning(LocationBatteryService.class) == false && locationSetting == true) {
        startService(new Intent(this, LocationBatteryService.class));
    }
}
    private boolean isMyServiceRunning(Class<?> serviceClass) {
        ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
            if (serviceClass.getName().equals(service.service.getClassName())) {
                return true;
            }
        }
        return false;
    }
}

应用程序开始：

import android.app.Application;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import android.util.Log;
import com.digits.sdk.android.Digits;
import com.twitter.sdk.android.core.TwitterAuthConfig;
import com.twitter.sdk.android.core.TwitterCore;
import io.fabric.sdk.android.Fabric;
public class ApplicationStart extends Application {
    private static Context mContext;
    @Override
    public void onCreate() {
        super.onCreate();
        mContext = this.getApplicationContext();
        /*if (!FirebaseApp.getApps(this).isEmpty()) {
            FirebaseDatabase.getInstance().setPersistenceEnabled(true);
        }*/
        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        String currentUser = sharedPrefs.getString("Username", null);
        if (currentUser == null) {
            // Take user to log in screen
            Log.d("TAG", "user needs to login");
            Intent intent = new Intent(this, MyIntro.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        }
        else {
            // User already logged in
            Log.d("TAG", "user logged in: " + currentUser);
            Intent intent = new Intent(this, MainActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);
        }
        TwitterAuthConfig authConfig = new TwitterAuthConfig(TWITTER_KEY,TWITTER_SECRET);
        Fabric.with(this, new TwitterCore(authConfig),new Digits.Builder().build());
    }
    public static Context getAppContext(){
        return mContext;
    }
}

完整清单：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.package">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" android:protectionLevel="signature" />
<application android:name=".ApplicationStart" android:allowBackup="false" android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name" android:supportsRtl="true" android:theme="@style/AppTheme">
    <activity android:name=".MainActivity" android:label="@string/app_name" android:launchMode="singleTop">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".LoginActivity" android:label="@string/title_activity_login"
        android:parentActivityName=".MainActivity" />
    <activity android:name=".ContactsSettingsActivity" android:label="Contact Settings"
        android:launchMode="singleTop">
        <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.package.ContactsChalkboard" />
    </activity>
    <activity android:name=".MyIntro" />
    <activity android:name=".ContactsChalkboard" />
    <activity android:name=".AlarmActivity" />
    <activity android:name=".AddContactActivity" android:parentActivityName=".MainActivity">
        <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.package.MainActivity" />
    </activity>
    <activity android:name=".PictureNameActivity" android:label="@string/title_activity_picture_name"
        android:parentActivityName=".LoginActivity">
        <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.package.LoginActivity" />
    </activity>
    <activity android:name=".Test" />
    <activity android:name=".SettingsActivity" android:label="Settings">
        <meta-data android:name="android.support.PARENT_ACTIVITY" android:value="com.package.MainActivity" />
    </activity>
    <activity android:name="com.package.GeofenceActivity" android:label="@string/title_activity_geofence">
    </activity>
    <service android:name=".LocationBatteryService" android:enabled="true" android:exported="true" />
    <service android:name=".MyFirebaseMessagingService">
        <intent-filter>
            <action android:name="com.google.firebase.MESSAGING_EVENT" />
        </intent-filter>
    </service>
    <service android:name=".MyFirebaseInstanceIDService">
        <intent-filter>
            <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
        </intent-filter>
    </service>
    <service android:name=".GeofenceTransitionsIntentService" />
    <receiver android:name=".AlarmReceiver" android:enabled="true" android:exported="true" />
    <receiver android:name=".BootReceiver" android:enabled="true" android:exported="true">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
        </intent-filter>
    </receiver>
    <meta-data android:name="com.google.android.geo.API_KEY" android:value="API KEY VALUE" />
    <meta-data android:name="io.fabric.ApiKey" android:value="API KEY VALUE" />
</application>
</manifest>

Answer 1

好吧，无法保证系统一直在不断运行您的服务。当申请被杀死时，必须提供一个新的位置时，Play Services LIB将实例化申请并开始您的服务。您必须从应用程序类中删除startActivity。