Remove now unused imports + fix one more SharedPreferences usage

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/ConfigureAlarms.java

@@ -1,9 +1,7 @@
 package nodomain.freeyourgadget.gadgetbridge.activities;
 
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.os.Bundle;
-import android.preference.PreferenceManager;
 import android.view.MenuItem;
 import android.widget.ListView;
 

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/ControlCenter.java

@@ -10,11 +10,9 @@ import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
-import android.preference.PreferenceManager;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBandCoordinator.java

@@ -2,9 +2,7 @@ package nodomain.freeyourgadget.gadgetbridge.devices.miband;
 
 import android.app.Activity;
 import android.content.Context;
-import android.content.SharedPreferences;
 import android.net.Uri;
-import android.preference.PreferenceManager;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/miband/MiBandPairingActivity.java

@@ -7,11 +7,9 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
-import android.preference.PreferenceManager;
 import android.support.v4.content.LocalBroadcastManager;
 import android.widget.TextView;
 import android.widget.Toast;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/BluetoothStateChangeReceiver.java

@@ -4,8 +4,6 @@ import android.bluetooth.BluetoothAdapter;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
 import android.support.v4.content.LocalBroadcastManager;
 
 import nodomain.freeyourgadget.gadgetbridge.GBApplication;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/K9Receiver.java

@@ -3,11 +3,9 @@ package nodomain.freeyourgadget.gadgetbridge.externalevents;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.PowerManager;
-import android.preference.PreferenceManager;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/NotificationListener.java

@@ -8,12 +8,10 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.SharedPreferences;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.os.PowerManager;
-import android.preference.PreferenceManager;
 import android.service.notification.NotificationListenerService;
 import android.service.notification.StatusBarNotification;
 import android.support.v4.app.NotificationCompat;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/PebbleReceiver.java

@@ -3,9 +3,7 @@ package nodomain.freeyourgadget.gadgetbridge.externalevents;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.os.PowerManager;
-import android.preference.PreferenceManager;
 
 import org.json.JSONArray;
 import org.json.JSONException;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/PhoneCallReceiver.java

@@ -3,8 +3,6 @@ package nodomain.freeyourgadget.gadgetbridge.externalevents;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
 import android.telephony.TelephonyManager;
 
 import nodomain.freeyourgadget.gadgetbridge.GBApplication;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/SMSReceiver.java

@@ -3,10 +3,8 @@ package nodomain.freeyourgadget.gadgetbridge.externalevents;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.PowerManager;
-import android.preference.PreferenceManager;
 import android.telephony.SmsMessage;
 
 import nodomain.freeyourgadget.gadgetbridge.GBApplication;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/externalevents/TimeChangeReceiver.java

@@ -3,8 +3,6 @@ package nodomain.freeyourgadget.gadgetbridge.externalevents;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/model/ActivityUser.java

@@ -1,8 +1,5 @@
 package nodomain.freeyourgadget.gadgetbridge.model;
 
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
-
 import java.util.Calendar;
 
 import nodomain.freeyourgadget.gadgetbridge.GBApplication;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/MiBandSupport.java

@@ -3,9 +3,7 @@ package nodomain.freeyourgadget.gadgetbridge.service.devices.miband;
 import android.bluetooth.BluetoothGatt;
 import android.bluetooth.BluetoothGattCharacteristic;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.net.Uri;
-import android.preference.PreferenceManager;
 import android.support.v4.content.LocalBroadcastManager;
 import android.widget.Toast;
 
@@ -1033,7 +1031,7 @@ public class MiBandSupport extends AbstractBTLEDeviceSupport {
             TransactionBuilder builder = performInitialized("Send upcoming events");
             BluetoothGattCharacteristic characteristic = getCharacteristic(MiBandService.UUID_CHARACTERISTIC_CONTROL_POINT);
 
-            SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
+            Prefs prefs = GBApplication.getPrefs();
             int availableSlots = prefs.getInt(MiBandConst.PREF_MIBAND_RESERVE_ALARM_FOR_CALENDAR, 0);
 
             if (availableSlots > 0) {

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/miband/operations/FetchActivityOperation.java

@@ -2,9 +2,7 @@ package nodomain.freeyourgadget.gadgetbridge.service.devices.miband.operations;
 
 import android.bluetooth.BluetoothGatt;
 import android.bluetooth.BluetoothGattCharacteristic;
-import android.content.SharedPreferences;
 import android.database.sqlite.SQLiteDatabase;
-import android.preference.PreferenceManager;
 import android.widget.Toast;
 
 import org.slf4j.Logger;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/DeviceHelper.java

@@ -3,8 +3,6 @@ package nodomain.freeyourgadget.gadgetbridge.util;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
 import android.widget.Toast;
 
 import java.util.ArrayList;