fixed bg stickers issue

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

@@ -1,7 +1,11 @@
 package ru.vtosters.lite.ui.fragments;
 
+import static ru.vtosters.lite.utils.Globals.deleteCache;
+import static ru.vtosters.lite.utils.Globals.getContext;
 import static ru.vtosters.lite.utils.Globals.restartApplicationWithTimer;
 
+import android.content.Context;
+import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.support.v7.preference.Preference;
 
@@ -19,7 +23,7 @@ public class MessagesFragment extends MaterialPreferenceToolbarFragment {
     private void prefs() {
         a("vkme").a(new MessagesFragment.restart());
         a("vkme_notifs").a(new MessagesFragment.restart());
-        a("isBGStickersEnabled").a(new MessagesFragment.restart());
+        a("isBGStickersEnabled").a(new MessagesFragment.clearCache());
         a("roundedmsgs").a(new MessagesFragment.restart());
         a("systememoji").a(new MessagesFragment.restart());
     }
@@ -38,4 +42,24 @@ public class MessagesFragment extends MaterialPreferenceToolbarFragment {
             return MessagesFragment.this.restart(preference, obj);
         }
     }
+
+    public boolean clearCache(Preference preference, Object obj) {
+        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();
+        deleteCache();
+        restartApplicationWithTimer();
+        return true;
+    }
+
+    public class clearCache implements Preference.b {
+        clearCache() {
+        }
+
+        @Override // android.support.v7.preference.Preference.b
+        public boolean a(Preference preference, Object obj) {
+            return MessagesFragment.this.restart(preference, obj);
+        }
+    }
 }