diff --git a/app/build.gradle b/app/build.gradle
index 70b48eda..0bd0d9bb 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -1,15 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion 29
 
     defaultConfig {
         applicationId "org.traccar.client"
         buildConfigField "boolean", "HIDDEN_APP", "false"
-        minSdkVersion 15
-        targetSdkVersion 28
-        versionCode 56
-        versionName '5.19'
+        minSdkVersion 16
+        targetSdkVersion 29
+        versionCode 57
+        versionName '5.20'
     }
 
     lintOptions {
@@ -34,12 +34,13 @@ android {
 }
 
 dependencies {
-    implementation 'com.google.android.material:material:1.1.0-alpha06'
+    implementation 'com.google.android.material:material:1.1.0-alpha10'
+    implementation 'androidx.preference:preference:1.1.0'
     testImplementation 'junit:junit:4.12'
     testImplementation 'org.robolectric:robolectric:4.1'
-    googleImplementation 'com.google.firebase:firebase-core:16.0.8'
-    googleImplementation 'com.crashlytics.sdk.android:crashlytics:2.10.0'
-    googleImplementation "com.google.android.gms:play-services-location:16.0.0"
+    googleImplementation 'com.google.firebase:firebase-core:17.2.0'
+    googleImplementation 'com.crashlytics.sdk.android:crashlytics:2.10.1'
+    googleImplementation "com.google.android.gms:play-services-location:17.0.0"
 }
 
 if (getGradle().getStartParameter().getTaskRequests().toString().contains("Google")) {
diff --git a/app/src/google/AndroidManifest.xml b/app/src/google/AndroidManifest.xml
index d5b452b4..684c9991 100644
--- a/app/src/google/AndroidManifest.xml
+++ b/app/src/google/AndroidManifest.xml
@@ -5,7 +5,8 @@
 
     <application
         android:name="org.traccar.client.GoogleMainApplication"
-        tools:replace="android:name">
+        tools:replace="android:name"
+        tools:ignore="GoogleAppIndexingWarning">
 
     </application>
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 0753e267..98e43af0 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,10 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="org.traccar.client">
 
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
@@ -21,7 +23,8 @@
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme"
-        android:name=".MainApplication">
+        android:name=".MainApplication"
+        tools:ignore="GoogleAppIndexingWarning">
 
         <meta-data
             android:name="google_analytics_adid_collection_enabled"
@@ -56,9 +59,12 @@
             </intent-filter>
         </activity>
 
-        <service android:name=".TrackingService" />
+        <service
+            android:name=".TrackingService"
+            android:foregroundServiceType="location" />
 
-        <service android:name=".TrackingService$HideNotificationService" />
+        <service
+            android:name=".TrackingService$HideNotificationService" />
 
         <receiver android:name=".AutostartReceiver">
             <intent-filter>
diff --git a/app/src/main/java/org/traccar/client/MainActivity.java b/app/src/main/java/org/traccar/client/MainActivity.java
index a96936e2..ed58d4a6 100644
--- a/app/src/main/java/org/traccar/client/MainActivity.java
+++ b/app/src/main/java/org/traccar/client/MainActivity.java
@@ -25,7 +25,7 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         if (savedInstanceState == null) {
-            getFragmentManager().beginTransaction().replace(android.R.id.content, new MainFragment()).commit();
+            getSupportFragmentManager().beginTransaction().replace(android.R.id.content, new MainFragment()).commit();
         }
     }
 
diff --git a/app/src/main/java/org/traccar/client/MainFragment.java b/app/src/main/java/org/traccar/client/MainFragment.java
index dafba95f..b7b899f8 100644
--- a/app/src/main/java/org/traccar/client/MainFragment.java
+++ b/app/src/main/java/org/traccar/client/MainFragment.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2017 Anton Tananaev (anton@traccar.org)
+ * Copyright 2012 - 2019 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,14 +27,15 @@
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
-import android.preference.EditTextPreference;
-import android.preference.Preference;
-import android.preference.PreferenceFragment;
-import android.preference.PreferenceManager;
-import android.preference.TwoStatePreference;
 import androidx.annotation.NonNull;
 import androidx.core.content.ContextCompat;
 import androidx.appcompat.app.AlertDialog;
+import androidx.preference.EditTextPreference;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceFragmentCompat;
+import androidx.preference.PreferenceManager;
+import androidx.preference.TwoStatePreference;
+
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -42,9 +43,11 @@
 import android.webkit.URLUtil;
 import android.widget.Toast;
 
+import java.util.HashSet;
 import java.util.Random;
+import java.util.Set;
 
-public class MainFragment extends PreferenceFragment implements OnSharedPreferenceChangeListener {
+public class MainFragment extends PreferenceFragmentCompat implements OnSharedPreferenceChangeListener {
 
     private static final String TAG = MainFragment.class.getSimpleName();
 
@@ -66,15 +69,14 @@ public class MainFragment extends PreferenceFragment implements OnSharedPreferen
     private PendingIntent alarmIntent;
 
     @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        if (BuildConfig.HIDDEN_APP) {
+    public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
+        if (BuildConfig.HIDDEN_APP && Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
             removeLauncherIcon();
         }
 
         setHasOptionsMenu(true);
 
-        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
+        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getContext());
         addPreferencesFromResource(R.xml.preferences);
         initPreferences();
 
@@ -129,6 +131,7 @@ public boolean onPreferenceChange(Preference preference, Object newValue) {
         if (sharedPreferences.getBoolean(KEY_STATUS, false)) {
             startTrackingService(true, false);
         }
+
     }
 
     private void removeLauncherIcon() {
@@ -212,11 +215,18 @@ private void initPreferences() {
 
     private void startTrackingService(boolean checkPermission, boolean permission) {
         if (checkPermission) {
-            if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
-                permission = true;
-            } else {
+            Set<String> requiredPermissions = new HashSet<>();
+            if (ContextCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
+                requiredPermissions.add(Manifest.permission.ACCESS_FINE_LOCATION);
+            }
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q
+                    && ContextCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_BACKGROUND_LOCATION) != PackageManager.PERMISSION_GRANTED) {
+                requiredPermissions.add(Manifest.permission.ACCESS_BACKGROUND_LOCATION);
+            }
+            permission = requiredPermissions.isEmpty();
+            if (!permission) {
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                    requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSIONS_REQUEST_LOCATION);
+                    requestPermissions(requiredPermissions.toArray(new String[requiredPermissions.size()]), PERMISSIONS_REQUEST_LOCATION);
                 }
                 return;
             }
@@ -224,12 +234,12 @@ private void startTrackingService(boolean checkPermission, boolean permission) {
 
         if (permission) {
             setPreferencesEnabled(false);
-            ContextCompat.startForegroundService(getActivity(), new Intent(getActivity(), TrackingService.class));
+            ContextCompat.startForegroundService(getContext(), new Intent(getActivity(), TrackingService.class));
             alarmManager.setInexactRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
                     ALARM_MANAGER_INTERVAL, ALARM_MANAGER_INTERVAL, alarmIntent);
         } else {
             sharedPreferences.edit().putBoolean(KEY_STATUS, false).apply();
-            TwoStatePreference preference = (TwoStatePreference) findPreference(KEY_STATUS);
+            TwoStatePreference preference = findPreference(KEY_STATUS);
             preference.setChecked(false);
         }
     }
diff --git a/build.gradle b/build.gradle
index 2e5dd2e4..4a3a6df4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,8 @@ buildscript {
         maven { url 'https://maven.fabric.io/public' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.0'
-        classpath 'com.google.gms:google-services:4.2.0'
+        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.google.gms:google-services:4.3.2'
         classpath 'io.fabric.tools:gradle:1.26.1'
     }
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index d757f3d3..01a286e9 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip