I'm working on an assignment and i'm trying to create a to-do list in AndroidStudio. I've created the listview, edit text, switch and button, but I've hit a snag with the following: Create a new Java object to hold each todo item, it should contain a string with the text of the todo, and a boolean for if it is urgent or not. Create a List to hold all your items, and for the adapter to use for displaying them. When you click “Add”, you should create a new todo item and add it to the list, clear out the text in the EditText, and call “notifyDatasetChanged()” on your adapter so it refreshes. Implement a BaseAdapter to power the ListView. In AndroidStudio, type ctrl + O (the letter ‘O’, not number zero). From the list of inherited functions, implement these ones: int getCount() - This returns the number of rows that will be in your listView. In your case, it should be the number of strings in the array list object ( return list.size() ). Object getItem(int position) – This returns the item to show in the list at the specified position: ( return list.get(position) ) View getView(int position, View convertView, ViewGroup parent) – this returns the layout that will be positioned at the specified row in the list with the todo item text added. If the todo item is urgent, set the background of the row to red and change the color of the text to white. You can change the background color of the row after it’s been inflated with “view.setBackgroundColor(Color.RED)”, and by calling “setTextColor(Color.WHITE)” on the TextView. long getItemId(int position) – This is the database id of the item at position. For now, we aren’t using SQL, so just return the number: position. Set an onItemLongClick() listener to the ListView. Whenever you click on the list at a certain row, show an AlertDialog with the title: “Do you want to delete this?”, the message should display the “The selected row is: “, followed by the index that was clicked. The AlertDialog should also have a positive and negative button. The positive button should delete the item at the specified row and refresh the list.