def prev_item(self):
self.clear_list_item_selection()
if self.current_item == 0:
self.current_item = len(self.adapter.data) - 1
else:
self.current_item = self.current_item - 1
view = self.adapter.get_view(self.current_item)
if view is not None:
self.adapter.select_item_view(view)
Utils.speak_text(Utils.convert_text(view.text))
# scrolling
selected_index = self.adapter.selection[0].index
if selected_index > 4:
self.ids.list_view.scroll_to(selected_index - 4)
else:
self.ids.list_view.scroll_to(0)
def next_item(self):
self.clear_list_item_selection()
if len(self.adapter.data) == self.current_item + 1:
self.current_item = 0
else:
self.current_item = self.current_item + 1
view = self.ids.list_view.adapter.get_view(self.current_item)
self.ids.list_view.adapter.select_item_view(view)
# scrolling
selected_index = self.adapter.selection[0].index
if selected_index > 4:
self.ids.list_view.scroll_to(selected_index - 4)
else:
self.ids.list_view.scroll_to(0)
if view.text == '../':
Utils.speak('UP_DIR')
else:
Utils.speak_text(Utils.convert_text(view.text))
