Request Permission to Read the File System

As a user, I need the app to request permission to read the file system so that it can find the sermons I download from The Table.

Acceptance Criteria:

• GIVEN the application does not have the READ_EXTERNAL_STORAGE permission

• AND it is not barred from asking for this permission

  • WHEN launching the application
    • THEN the user is prompted to grant or deny the READ_EXTERNAL_STORAGE permission
  • WHEN launching the application
  • AND the user grants the necessary permission
    • THEN the application populates the list of sermons
  • WHEN launching the application
  • AND the user denies the permission
    • THEN the application shows a toast message
    • AND that message reads "This permission is necessary for the Branham Player to work properly"
    • AND the application does not populate the list of sermons

• GIVEN the application does not have the READ_EXTERNAL_STORAGE permission

• AND it is barred from asking for this permission

  • WHEN launching the application
    • THEN the application shows a toast message
    • AND that message reads "This permission is necessary for the Branham Player to work properly"
    • AND the application does not populate the list of sermons

• GIVEN the application has the READ_EXTERNAL_STORAGE permission

  • WHEN launching the application
    • THEN the user is not prompted to grant or deny any permission
    • AND the application populates the list of sermons

Note: This story does not cover re-asking for permission on foregrounding, only on a fresh launch.