Google decided to deprecate the ProgressDialog class in Android O (26). Now I have to deal with all those deprecation messages in Android Studio!

From the docs: "ProgressDialog is a modal dialog, which prevents the user from interacting with the app. Instead of using this class, you should use a progress indicator like ProgressBar, which can be embedded in your app's UI. Alternatively, you can use a notification to inform the user of the task's progress."

They also bugged the Toolbar! Nice.