small fixes

app/src/main/java/ru/vtosters/lite/ui/fragments/FeedFragment.java

@@ -21,10 +21,10 @@ public class FeedFragment extends MaterialPreferenceToolbarFragment {
     }
 
     private void prefs() {
-        a("officialnewssett").a(new FeedFragment.openofficialsett());
+        a("officialnewssett").a(new openofficialsett());
     }
 
-    public class openofficialsett implements Preference.c {
+    public static class openofficialsett implements Preference.c {
         openofficialsett() {
         }
 

app/src/main/java/ru/vtosters/lite/ui/fragments/OtherFragment.java

@@ -2,6 +2,7 @@ package ru.vtosters.lite.ui.fragments;
 
 import static android.widget.Toast.LENGTH_SHORT;
 import static android.widget.Toast.makeText;
+import static ru.vtosters.lite.utils.Globals.deleteCache;
 import static ru.vtosters.lite.utils.Globals.getContext;
 import static ru.vtosters.lite.utils.Globals.getString;
 import static ru.vtosters.lite.utils.Globals.getUserToken;
@@ -68,24 +69,27 @@ public class OtherFragment extends MaterialPreferenceToolbarFragment {
         }
     }
 
-    public class e implements Preference.c {
+    public static class e implements Preference.c {
         e() {
         }
 
         @Override // android.support.v7.preference.Preference.c
         public boolean a(Preference preference) {
             SharedPreferences prefs = getContext().getSharedPreferences("stickers", Context.MODE_PRIVATE);
+            SharedPreferences prefs2 = getContext().getSharedPreferences("stickers_storage", Context.MODE_PRIVATE);
             prefs.edit().clear().commit();
+            prefs2.edit().clear().commit();
             VKImageLoader.b();
             ImEngineProvider.a().h();
             AudioMessageUtils.j();
             FileUtils.l();
+            deleteCache();
             ToastUtils.a(getString("cachecleaned"));
             return true;
         }
     }
 
-    public class b implements Preference.c {
+    public static class b implements Preference.c {
         b() {
         }
 
@@ -96,7 +100,7 @@ public class OtherFragment extends MaterialPreferenceToolbarFragment {
         }
     }
 
-    public class d implements Preference.c {
+    public static class d implements Preference.c {
         d() {
         }
 
@@ -126,20 +130,23 @@ public class OtherFragment extends MaterialPreferenceToolbarFragment {
         }
     }
 
-    public class f implements Preference.c {
+    public static class f implements Preference.c {
         f() {
         }
 
         @Override // android.support.v7.preference.Preference.c
         public boolean a(Preference preference) {
             SharedPreferences prefs = getContext().getSharedPreferences("stickers", Context.MODE_PRIVATE);
+            SharedPreferences prefs2 = getContext().getSharedPreferences("stickers_storage", Context.MODE_PRIVATE);
             prefs.edit().clear().commit();
-            restartApplication();
+            prefs2.edit().clear().commit();
+            deleteCache();
+            ToastUtils.a(getString("cachecleaned"));
             return true;
         }
     }
 
-    public class deleteprefs implements Preference.c {
+    public static class deleteprefs implements Preference.c {
         deleteprefs() {
         }
 
@@ -151,7 +158,7 @@ public class OtherFragment extends MaterialPreferenceToolbarFragment {
         }
     }
 
-    public class saveprefs implements Preference.c {
+    public static class saveprefs implements Preference.c {
         saveprefs() {
         }
 
@@ -162,7 +169,7 @@ public class OtherFragment extends MaterialPreferenceToolbarFragment {
         }
     }
 
-    public class restoreprefs implements Preference.c {
+    public static class restoreprefs implements Preference.c {
         restoreprefs() {
         }
 

app/src/main/java/ru/vtosters/lite/utils/Globals.java

@@ -42,6 +42,7 @@ import com.vtosters.lite.api.ExtendedUserProfile;
 import com.vtosters.lite.auth.VKAccountManager;
 import com.vtosters.lite.im.ImEngineProvider;
 
+import java.io.File;
 import java.io.InputStream;
 import java.lang.reflect.Method;
 import java.net.URL;
@@ -50,11 +51,12 @@ import java.security.NoSuchAlgorithmException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
+import java.util.Objects;
 
 import ru.vtosters.lite.ui.dialogs.DisableBattery;
 import ru.vtosters.lite.ui.dialogs.InstallGMS;
-import ru.vtosters.lite.ui.dialogs.Start;
 import ru.vtosters.lite.ui.dialogs.OTADialog;
+import ru.vtosters.lite.ui.dialogs.Start;
 
 public class Globals {
     private static final List<Activity> activities = new ArrayList<>();
@@ -200,7 +202,31 @@ public class Globals {
         return null;
     } // Getting the global context through reflection to use context on application initialization
 
+    public static void deleteCache() {
+        try {
+            File dir = getContext().getCacheDir();
+            deleteDir(dir);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
 
+    public static boolean deleteDir(File dir) {
+        if (dir != null && dir.isDirectory()) {
+            String[] children = dir.list();
+            for (int i=0; i < Objects.requireNonNull(children).length; i++) {
+                boolean success = deleteDir(new File(dir, children[i]));
+                if (!success) {
+                    return false;
+                }
+            }
+            return dir.delete();
+        } else if(dir!= null && dir.isFile()) {
+            return dir.delete();
+        } else {
+            return false;
+        }
+    }
     public static boolean isGmsInstalled() {
         try {
             getContext().getPackageManager().getPackageInfo("com.google.android.gms", 0);