Clean code

app/src/leanback/java/com/fongmi/android/tv/bean/Cache.java

@@ -35,6 +35,12 @@ public class Cache {
         return filters == null ? Collections.emptyList() : filters;
     }
 
+    public static List<Filter> copy(String typeId) {
+        List<Filter> filters = get().cache.get(typeId);
+        if (filters == null) return Collections.emptyList();
+        return filters.stream().map(Filter::copy).toList();
+    }
+
     public static Cache clear() {
         get().cache.clear();
         return get();

app/src/leanback/java/com/fongmi/android/tv/ui/fragment/FolderFragment.java

@@ -18,7 +18,6 @@ import com.fongmi.android.tv.ui.activity.VodActivity;
 import com.fongmi.android.tv.ui.base.BaseFragment;
 
 import java.util.HashMap;
-import java.util.List;
 import java.util.Optional;
 
 public class FolderFragment extends BaseFragment {
@@ -63,10 +62,8 @@ public class FolderFragment extends BaseFragment {
     }
 
     private HashMap<String, String> getExtend() {
-        List<Filter> cache = Cache.get(mType);
         HashMap<String, String> extend = new HashMap<>();
-        for (Filter filter : cache) filter.getValue().forEach(value -> value.setActivated(false));
-        for (Filter filter : cache) if (filter.getInit() != null) extend.put(filter.getKey(), filter.getInit());
+        for (Filter filter : Cache.get(mType)) if (filter.getInit() != null) extend.put(filter.getKey(), filter.getInit());
         return extend;
     }
 

app/src/leanback/java/com/fongmi/android/tv/ui/fragment/TypeFragment.java

@@ -90,7 +90,7 @@ public class TypeFragment extends BaseFragment implements CustomScroller.Callbac
     }
 
     private List<Filter> getFilter() {
-        return Cache.get(getTypeId());
+        return Cache.copy(getTypeId());
     }
 
     private Site getSite() {

app/src/main/java/com/fongmi/android/tv/bean/Filter.java

@@ -38,6 +38,9 @@ public class Filter implements Parcelable {
         return items == null ? Collections.emptyList() : items;
     }
 
+    public Filter() {
+    }
+
     public String getKey() {
         return key;
     }
@@ -64,6 +67,16 @@ public class Filter implements Parcelable {
         return this;
     }
 
+    public Filter copy() {
+        Filter copy = new Filter();
+        copy.key = this.key;
+        copy.name = this.name;
+        copy.init = this.init;
+        copy.value = new ArrayList<>();
+        getValue().forEach(item -> copy.value.add(item.copy()));
+        return copy;
+    }
+
     public Filter trans() {
         if (Trans.pass()) return this;
         getValue().forEach(Value::trans);

app/src/main/java/com/fongmi/android/tv/bean/Value.java

@@ -64,6 +64,12 @@ public class Value implements Parcelable, Diffable<Value> {
         else activated = equal;
     }
 
+    public Value copy() {
+        Value copy = new Value(n, v);
+        copy.activated = this.activated;
+        return copy;
+    }
+
     public Value trans() {
         this.n = Trans.s2t(n);
         return this;