private void update(ArrayList<Category> newItems) {
ArrayList<Category> arrayForRemoving = new ArrayList<>();
for (int i = 0; i < publishItems.size(); i++) {
Category category = publishItems.get(i);
if (!newItems.contains(category)) {
arrayForRemoving.add(category);
}
}
for (Category category : arrayForRemoving) {
publishItems.remove(category);
}
for (Category category : newItems) {
if (publishItems.indexOf(category) == SortedList.INVALID_POSITION) {
publishItems.add(category);
}
}
if (publishItems.size() == 0) {
if (currentFilter.equals(FILTER_ALL)) {
callback.onEmpty(
R.string.empty_no_categories_restart_app,
R.drawable.ic_menu_gallery,
R.string.button_restart_app,
null);
} else {
callback.onEmpty(
R.string.empty_no_favorite_categories,
R.drawable.ic_menu_gallery,
R.string.button_show_all_categories,
null);
}
}
}
public CategoriesAdapter(
Context context, CategoryFavoriteCallback callback, ArrayList<Category> objects) {
this.context = context;
this.callback = callback;
this.objects = objects;
publishItems =
new SortedList<>(
Category.class,
new SortedList.Callback<Category>() {
@Override
public boolean areContentsTheSame(Category oneItem, Category twoItem) {
return oneItem.contentEquals(twoItem);
}
@Override
public boolean areItemsTheSame(Category oneItem, Category twoItem) {
return oneItem.equals(twoItem);
}
@Override
public int compare(Category oneItem, Category twoItem) {
return oneItem.compareTo(twoItem);
}
@Override
public void onChanged(int position, int count) {
notifyItemRangeChanged(position, count);
}
@Override
public void onInserted(int position, int count) {
notifyItemRangeInserted(position, count);
}
@Override
public void onMoved(int fromPosition, int toPosition) {
notifyItemMoved(fromPosition, toPosition);
}
@Override
public void onRemoved(int position, int count) {
notifyItemRangeRemoved(position, count);
}
});
for (Category category : objects) {
publishItems.add(category);
}
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, final Bundle savedInstanceState) {
final View rootView =
inflater.inflate(R.layout.fragment_recyclerview_sorted_list, container, false);
final RecyclerView rcRecyclerView = (RecyclerView) rootView.findViewById(R.id.rvRecyclerView);
final FloatingActionButton fab = (FloatingActionButton) rootView.findViewById(R.id.fab);
rcRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
adapter =
new RecyclerViewSortedListAdapter(
sortedList,
new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
final int itemPosition = rcRecyclerView.getChildAdapterPosition(v);
final String item = sortedList.get(itemPosition);
View view =
LayoutInflater.from(getActivity())
.inflate(R.layout.dialog_recycler_view_modify, null, false);
ListView lvListView = (ListView) view.findViewById(R.id.lvListView);
lvListView.setAdapter(
new ArrayAdapter<String>(
getActivity(),
android.R.layout.simple_list_item_1,
android.R.id.text1,
new String[] {
"Rename", "Delete",
}));
lvListView.setOnItemClickListener(
new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(
AdapterView<?> parent, View view, int position, long id) {
if (position == 0) { // rename
final View view2 =
LayoutInflater.from(getActivity())
.inflate(R.layout.dialog_recycler_view_add, null, false);
new AlertDialog.Builder(getActivity())
.setTitle("Rename " + item + " to")
.setView(view2)
.setPositiveButton(
android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
EditText etRename =
(EditText) view2.findViewById(R.id.etItem);
sortedList.updateItemAt(
itemPosition, etRename.getText().toString());
dialog.dismiss();
}
})
.setNegativeButton(
android.R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
})
.create()
.show();
} else if (position == 1) { // delete
sortedList.removeItemAt(itemPosition);
}
mDialog.dismiss();
}
});
mDialog =
new AlertDialog.Builder(getActivity()).setTitle(item).setView(view).create();
mDialog.show();
return false;
}
});
sortedList.add("Banana");
sortedList.add("Apple");
rcRecyclerView.setAdapter(adapter);
fab.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
final View view =
LayoutInflater.from(getActivity())
.inflate(R.layout.dialog_recycler_view_add, null, false);
new AlertDialog.Builder(getActivity())
.setTitle("Add Item")
.setView(view)
.setNegativeButton(
android.R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
})
.setPositiveButton(
android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
EditText etItem = (EditText) view.findViewById(R.id.etItem);
sortedList.add(etItem.getText().toString());
dialog.dismiss();
}
})
.create()
.show();
}
});
return rootView;
}