Update version number

app/build.gradle

@@ -9,8 +9,8 @@ android {
         buildConfigField "boolean", "HIDDEN_APP", "false"
         minSdkVersion 14
         targetSdkVersion 26
-        versionCode 38
-        versionName '5.1'
+        versionCode 40
+        versionName '5.3'
     }
 
     lintOptions {

app/src/main/java/org/traccar/client/AutostartReceiver.java

@@ -19,7 +19,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
-import android.support.v4.content.WakefulBroadcastReceiver;
 
 public class AutostartReceiver extends WakefulBroadcastReceiver {
     

app/src/main/java/org/traccar/client/MainApplication.java

@@ -21,8 +21,11 @@ import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.graphics.Color;
+import android.net.Uri;
 import android.os.Build;
+import android.preference.PreferenceManager;
 
 public class MainApplication extends Application {
 
@@ -33,6 +36,8 @@ public class MainApplication extends Application {
         super.onCreate();
         System.setProperty("http.keepAliveDuration", String.valueOf(30 * 60 * 1000));
 
+        migrateLegacyPreferences(PreferenceManager.getDefaultSharedPreferences(this));
+
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
             registerChannel();
         }
@@ -47,4 +52,22 @@ public class MainApplication extends Application {
         ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);
     }
 
+    private void migrateLegacyPreferences(SharedPreferences preferences) {
+        String port = preferences.getString("port", null);
+        if (port != null) {
+            String host = preferences.getString("address", getString(R.string.settings_url_default_value));
+            String scheme = preferences.getBoolean("secure", false) ? "https" : "http";
+
+            Uri.Builder builder = new Uri.Builder();
+            builder.scheme(scheme).encodedAuthority(host + ":" + port).build();
+            SharedPreferences.Editor editor = preferences.edit();
+            editor.putString(MainFragment.KEY_URL, builder.toString());
+
+            editor.remove("port");
+            editor.remove("address");
+            editor.remove("secure");
+            editor.apply();
+        }
+    }
+
 }

app/src/main/java/org/traccar/client/MainFragment.java

@@ -78,7 +78,6 @@ public class MainFragment extends PreferenceFragment implements OnSharedPreferen
         setHasOptionsMenu(true);
 
         sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
-        migrateLegacyPreferences(sharedPreferences);
         addPreferencesFromResource(R.xml.preferences);
         initPreferences();
 
@@ -288,24 +287,4 @@ public class MainFragment extends PreferenceFragment implements OnSharedPreferen
         return false;
     }
 
-    private void migrateLegacyPreferences(SharedPreferences preferences) {
-        String port = preferences.getString("port", null);
-        if (port != null) {
-            Log.d(TAG, "Migrating to URL preference");
-
-            String host = preferences.getString("address", getString(R.string.settings_url_default_value));
-            String scheme = preferences.getBoolean("secure", false) ? "https" : "http";
-
-            Uri.Builder builder = new Uri.Builder();
-            builder.scheme(scheme).encodedAuthority(host + ":" + port).build();
-            SharedPreferences.Editor editor = preferences.edit();
-            editor.putString(KEY_URL, builder.toString());
-
-            editor.remove("port");
-            editor.remove("address");
-            editor.remove("secure");
-            editor.apply();
-        }
-    }
-
 }

app/src/main/java/org/traccar/client/MixedPositionProvider.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ * Copyright 2015 - 2017 Anton Tananaev (anton.tananaev@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -75,8 +75,12 @@ public class MixedPositionProvider extends PositionProvider implements LocationL
                 }
             };
 
+            try {
                 locationManager.requestLocationUpdates(
                         LocationManager.NETWORK_PROVIDER, requestInterval, 0, backupListener);
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG, e);
+            }
         }
     }
 

app/src/main/java/org/traccar/client/TrackingController.java

@@ -66,7 +66,7 @@ public class TrackingController implements PositionProvider.PositionListener, Ne
         networkManager = new NetworkManager(context, this);
         isOnline = networkManager.isOnline();
 
-        url = preferences.getString(MainFragment.KEY_URL, null);
+        url = preferences.getString(MainFragment.KEY_URL, context.getString(R.string.settings_url_default_value));
 
         PowerManager powerManager = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
         wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, getClass().getName());

app/src/main/java/org/traccar/client/WakefulBroadcastReceiver.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.client;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.PowerManager;
+import android.support.v4.content.ContextCompat;
+import android.util.SparseArray;
+
+public abstract class WakefulBroadcastReceiver extends BroadcastReceiver {
+    private static final String EXTRA_WAKE_LOCK_ID = "android.support.content.wakelockid";
+    private static final SparseArray<PowerManager.WakeLock> mActiveWakeLocks = new SparseArray<>();
+    private static int mNextId = 1;
+
+    public static void startWakefulService(Context context, Intent intent) {
+        synchronized (mActiveWakeLocks) {
+            int id = mNextId;
+            mNextId++;
+            if (mNextId <= 0) {
+                mNextId = 1;
+            }
+            intent.putExtra(EXTRA_WAKE_LOCK_ID, id);
+            ContextCompat.startForegroundService(context, intent);
+            PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
+            PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
+                    WakefulBroadcastReceiver.class.getSimpleName());
+            wl.setReferenceCounted(false);
+            wl.acquire(60*1000);
+            mActiveWakeLocks.put(id, wl);
+        }
+    }
+
+    public static boolean completeWakefulIntent(Intent intent) {
+        final int id = intent.getIntExtra(EXTRA_WAKE_LOCK_ID, 0);
+        if (id == 0) {
+            return false;
+        }
+        synchronized (mActiveWakeLocks) {
+            PowerManager.WakeLock wl = mActiveWakeLocks.get(id);
+            if (wl != null) {
+                wl.release();
+                mActiveWakeLocks.remove(id);
+                return true;
+            }
+            return true;
+        }
+    }
+}

app/src/main/res/values/strings.xml

@@ -9,7 +9,6 @@
   <string name="settings_id_title">Device identifier</string>
   <string name="settings_url_title">Server URL</string>
   <string name="settings_url_summary">Tracking server URL</string>
-  <string name="settings_url_default_value" translatable="false">http://demo.traccar.org:5055</string>
   <string name="settings_interval_title">Frequency</string>
   <string name="settings_interval_summary">Reporting interval in seconds</string>
   <string name="settings_distance_title">Distance</string>

app/src/main/res/values/values.xml

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 
+    <string name="settings_url_default_value" translatable="false">http://demo.traccar.org:5055</string>
+
     <string-array name="settings_provider_values" translatable="false">
         <item>gps</item>
         <item>network</item>