Use classloader in the SavedState of TaskPreference

app/src/main/java/com/hippo/ehviewer/preference/TaskPreference.java

@@ -26,6 +26,7 @@ import androidx.annotation.CallSuper;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.customview.view.AbsSavedState;
 import com.hippo.ehviewer.EhApplication;
 import com.hippo.ehviewer.R;
 import com.hippo.preference.DialogPreference;
@@ -123,11 +124,11 @@ public abstract class TaskPreference extends DialogPreference {
         super.onRestoreInstanceState(myState.getSuperState());
     }
 
-    private static class SavedState extends BaseSavedState {
+    private static class SavedState extends AbsSavedState {
         int asyncTaskId;
 
         public SavedState(Parcel source) {
-            super(source);
+            super(source, SavedState.class.getClassLoader());
             asyncTaskId = source.readInt();
         }