Because the app uses the local file system, the characters "/" and "." are reserved. When an Article is created with either of these characters, the app will create duplicate Articles, or Articles named "invalid".
There are two features we can implement to prevent this. Ideally, we should implement both.
In CreateArticleActivity, display info text listing forbidden characters.
If the user attempts to create an article with a forbidden character, reject it and display an error Snackbar.
Because the app uses the local file system, the characters "/" and "." are reserved. When an Article is created with either of these characters, the app will create duplicate Articles, or Articles named "invalid".
There are two features we can implement to prevent this. Ideally, we should implement both.
CreateArticleActivity, display info text listing forbidden characters.