Help me in integration of "Add to Favorites" functionality in my android studio Project through the use of sqlite database.

First open and go through the android studio project that I have uploaded before reading this. In my project what i want is that when we click on heart button it should become red filled and a toast message should be shown telling "Added to favorites". By this the item should be added to the "Favorites" list acticity which we can access from the main screen of the app when we click on "Favorites" Button. When we click again on heart button beside item name it should become empty and should tell a message "Removed from favorites". Also in the favorites list there should be the name of the item and a favorite button beside it, so that if we want to remove the item from the list we can just tap on the button to remove it. The work should be done using SQLite database for permanent data storage. That's it. For more info ask me in the chat.