Hi Erel, thanks for your help.
Currently yes, I am on the main activity, on the menu I click for a new activity sessions, the ad is displayed and then we open the new activity.
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
click menu session => ad open
** Activity (main) Pause, UserClosed = false **
ad closed
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (sessions) Create, isFirst = true **
** Activity (sessions) Resume **
Before that, I tried on the button click event in the sessions activity:
** Activity (sessions) Create, isFirst = true **
** Activity (sessions) Pause, UserClosed = false **
** Activity (sessions) Resume **
click button => ad open
** Activity (sessions) Pause, UserClosed = false **
ad closed
** Activity (sessions) Resume **
Each time the ad pauses the activity in progress.