update sdk to version 28, update dependencies, fix potential memory leaks

6 files changed, 22 insertions, 66 deletions

diff --git a/app/src/main/java/se/leap/bitmaskclient/BitmaskApp.java b/app/src/main/java/se/leap/bitmaskclient/BitmaskApp.java
index 6484d0ee..fd9aa029 100644
--- a/app/src/main/java/se/leap/bitmaskclient/BitmaskApp.java
+++ b/app/src/main/java/se/leap/bitmaskclient/BitmaskApp.java
@@ -19,7 +19,6 @@ public class BitmaskApp extends MultiDexApplication {
     private final static String TAG = BitmaskApp.class.getSimpleName();
     private RefWatcher refWatcher;
     private ProviderObservable providerObservable;
-    private SharedPreferences preferences;
 
 
     @Override
@@ -33,7 +32,7 @@ public class BitmaskApp extends MultiDexApplication {
         refWatcher = LeakCanary.install(this);
         // Normal app init code...*/
         PRNGFixes.apply();
-        preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
+        SharedPreferences preferences = getSharedPreferences(SHARED_PREFERENCES, MODE_PRIVATE);
         providerObservable = ProviderObservable.getInstance();
         providerObservable.updateProvider(getSavedProviderFromSharedPreferences(preferences));
         EipSetupObserver.init(this, preferences);
diff --git a/app/src/main/java/se/leap/bitmaskclient/Constants.java b/app/src/main/java/se/leap/bitmaskclient/Constants.java
index b05fedf9..f9ee8fcf 100644
--- a/app/src/main/java/se/leap/bitmaskclient/Constants.java
+++ b/app/src/main/java/se/leap/bitmaskclient/Constants.java
@@ -33,6 +33,8 @@ public interface Constants {
     String DEFAULT_BITMASK = "normal";
     String CUSTOM_BITMASK = "custom";
 
+    String ASK_TO_CANCEL_VPN = "ask_to_cancel_vpn";
+
 
     //////////////////////////////////////////////
     // EIP CONSTANTS
diff --git a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
index 30959435..a535b0cb 100644
--- a/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/EipFragment.java
@@ -19,7 +19,6 @@ package se.leap.bitmaskclient;
 import android.app.Activity;
 import android.content.ComponentName;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.ServiceConnection;
 import android.content.SharedPreferences;
@@ -67,6 +66,7 @@ import static se.leap.bitmaskclient.Constants.PROVIDER_KEY;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_CONFIGURE_LEAP;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_LOG_IN;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_SWITCH_PROVIDER;
+import static se.leap.bitmaskclient.Constants.ASK_TO_CANCEL_VPN;
 import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES;
 import static se.leap.bitmaskclient.EipSetupObserver.connectionRetry;
 import static se.leap.bitmaskclient.EipSetupObserver.gatewayOrder;
@@ -81,7 +81,6 @@ public class EipFragment extends Fragment implements Observer {
 
     public final static String TAG = EipFragment.class.getSimpleName();
 
-    public static final String ASK_TO_CANCEL_VPN = "ask_to_cancel_vpn";
 
     private SharedPreferences preferences;
     private Provider provider;
@@ -106,8 +105,8 @@ public class EipFragment extends Fragment implements Observer {
     private EipStatus eipStatus;
 
     //---saved Instance -------
-    private final static String KEY_SHOW_PENDING_START_CANCELLATION = "KEY_SHOW_PENDING_START_CANCELLATION";
-    private final static String KEY_SHOW_ASK_TO_STOP_EIP = "KEY_SHOW_ASK_TO_STOP_EIP";
+    private final String KEY_SHOW_PENDING_START_CANCELLATION = "KEY_SHOW_PENDING_START_CANCELLATION";
+    private final String KEY_SHOW_ASK_TO_STOP_EIP = "KEY_SHOW_ASK_TO_STOP_EIP";
     private boolean showPendingStartCancellation = false;
     private boolean showAskToStopEip = false;
     //------------------------
@@ -324,22 +323,9 @@ public class EipFragment extends Fragment implements Observer {
         showPendingStartCancellation = true;
         alertDialog = alertBuilder.setTitle(activity.getString(R.string.eip_cancel_connect_title))
                 .setMessage(activity.getString(R.string.eip_cancel_connect_text))
-                .setPositiveButton((android.R.string.yes), new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                        stopEipIfPossible();
-                    }
-                })
-                .setNegativeButton(activity.getString(android.R.string.no), new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                    }
-                }).setOnDismissListener(new DialogInterface.OnDismissListener() {
-            @Override
-            public void onDismiss(DialogInterface dialog) {
-                showPendingStartCancellation = false;
-            }
-        }).show();
+                .setPositiveButton((android.R.string.yes), (dialog, which) -> stopEipIfPossible())
+                .setNegativeButton(activity.getString(android.R.string.no), (dialog, which) -> {
+                }).setOnDismissListener(dialog -> showPendingStartCancellation = false).show();
 
     }
 
@@ -353,22 +339,9 @@ public class EipFragment extends Fragment implements Observer {
         showAskToStopEip = true;
         alertDialog = alertBuilder.setTitle(activity.getString(R.string.eip_cancel_connect_title))
                 .setMessage(activity.getString(R.string.eip_warning_browser_inconsistency))
-                .setPositiveButton((android.R.string.yes), new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                        stopEipIfPossible();
-                    }
-                })
-                .setNegativeButton(activity.getString(android.R.string.no), new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialog, int which) {
-                    }
-                }).setOnDismissListener(new DialogInterface.OnDismissListener() {
-            @Override
-            public void onDismiss(DialogInterface dialog) {
-                showAskToStopEip = false;
-            }
-        }).show();
+                .setPositiveButton((android.R.string.yes), (dialog, which) -> stopEipIfPossible())
+                .setNegativeButton(activity.getString(android.R.string.no), (dialog, which) -> {
+                }).setOnDismissListener(dialog -> showAskToStopEip = false).show();
     }
 
     @Override
@@ -377,12 +350,7 @@ public class EipFragment extends Fragment implements Observer {
             eipStatus = (EipStatus) observable;
             Activity activity = getActivity();
             if (activity != null) {
-                activity.runOnUiThread(new Runnable() {
-                    @Override
-                    public void run() {
-                        handleNewState();
-                    }
-                });
+                activity.runOnUiThread(() -> handleNewState());
             } else {
                 Log.e("EipFragment", "activity is null");
             }
diff --git a/app/src/main/java/se/leap/bitmaskclient/MainActivity.java b/app/src/main/java/se/leap/bitmaskclient/MainActivity.java
index 30aa5baa..fd0c27d6 100644
--- a/app/src/main/java/se/leap/bitmaskclient/MainActivity.java
+++ b/app/src/main/java/se/leap/bitmaskclient/MainActivity.java
@@ -38,6 +38,7 @@ import se.leap.bitmaskclient.drawer.NavigationDrawerFragment;
 import se.leap.bitmaskclient.eip.EipCommand;
 import se.leap.bitmaskclient.fragments.LogFragment;
 
+import static se.leap.bitmaskclient.Constants.ASK_TO_CANCEL_VPN;
 import static se.leap.bitmaskclient.Constants.BROADCAST_RESULT_CODE;
 import static se.leap.bitmaskclient.Constants.BROADCAST_RESULT_KEY;
 import static se.leap.bitmaskclient.Constants.EIP_ACTION_START;
@@ -47,7 +48,6 @@ import static se.leap.bitmaskclient.Constants.REQUEST_CODE_CONFIGURE_LEAP;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_LOG_IN;
 import static se.leap.bitmaskclient.Constants.REQUEST_CODE_SWITCH_PROVIDER;
 import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES;
-import static se.leap.bitmaskclient.EipFragment.ASK_TO_CANCEL_VPN;
 import static se.leap.bitmaskclient.ProviderAPI.ERRORS;
 import static se.leap.bitmaskclient.ProviderAPI.INCORRECTLY_DOWNLOADED_EIP_SERVICE;
 import static se.leap.bitmaskclient.ProviderAPI.INCORRECTLY_UPDATED_INVALID_VPN_CERTIFICATE;
diff --git a/app/src/main/java/se/leap/bitmaskclient/VpnNotificationManager.java b/app/src/main/java/se/leap/bitmaskclient/VpnNotificationManager.java
index 503ba536..566b3453 100644
--- a/app/src/main/java/se/leap/bitmaskclient/VpnNotificationManager.java
+++ b/app/src/main/java/se/leap/bitmaskclient/VpnNotificationManager.java
@@ -44,7 +44,7 @@ import static android.text.TextUtils.isEmpty;
 import static de.blinkt.openvpn.core.ConnectionStatus.LEVEL_NONETWORK;
 import static de.blinkt.openvpn.core.ConnectionStatus.LEVEL_WAITING_FOR_USER_INPUT;
 import static se.leap.bitmaskclient.Constants.EIP_ACTION_STOP_BLOCKING_VPN;
-import static se.leap.bitmaskclient.EipFragment.ASK_TO_CANCEL_VPN;
+import static se.leap.bitmaskclient.Constants.ASK_TO_CANCEL_VPN;
 import static se.leap.bitmaskclient.MainActivity.ACTION_SHOW_VPN_FRAGMENT;
 
 /**
diff --git a/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java b/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
index 769bd887..ba0cfffc 100644
--- a/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
+++ b/app/src/main/java/se/leap/bitmaskclient/drawer/NavigationDrawerFragment.java
@@ -382,31 +382,18 @@ public class NavigationDrawerFragment extends Fragment {
             alertDialog = alertBuilder
                     .setTitle(activity.getString(R.string.save_battery))
                     .setMessage(activity.getString(R.string.save_battery_message))
-                    .setPositiveButton((android.R.string.yes), new DialogInterface.OnClickListener() {
-                        @Override
-                        public void onClick(DialogInterface dialog, int which) {
-                            DrawerSettingsItem item = settingsListAdapter.getDrawerItem(BATTERY_SAVER);
-                            item.setChecked(true);
-                            settingsListAdapter.notifyDataSetChanged();
-                            saveBattery(getContext(), item.isChecked());
-                        }
+                    .setPositiveButton((android.R.string.yes), (dialog, which) -> {
+                        DrawerSettingsItem item = settingsListAdapter.getDrawerItem(BATTERY_SAVER);
+                        item.setChecked(true);
+                        settingsListAdapter.notifyDataSetChanged();
+                        saveBattery(getContext(), item.isChecked());
                     })
-                    .setNegativeButton(activity.getString(android.R.string.no), new DialogInterface.OnClickListener() {
-                        @Override
-                        public void onClick(DialogInterface dialog, int which) {
-                            disableSwitch(BATTERY_SAVER);
-                        }
-                    }).setOnDismissListener(new DialogInterface.OnDismissListener() {
+                    .setNegativeButton(activity.getString(android.R.string.no), (dialog, which) -> disableSwitch(BATTERY_SAVER)).setOnDismissListener(new DialogInterface.OnDismissListener() {
                         @Override
                         public void onDismiss(DialogInterface dialog) {
                             showEnableExperimentalFeature = false;
                         }
-                    }).setOnCancelListener(new DialogInterface.OnCancelListener() {
-                        @Override
-                        public void onCancel(DialogInterface dialog) {
-                            disableSwitch(BATTERY_SAVER);
-                        }
-                    }).show();
+                    }).setOnCancelListener(dialog -> disableSwitch(BATTERY_SAVER)).show();
         } catch (IllegalStateException e) {
             e.printStackTrace();
         }