i searching about accessibility event called when android app window is changing. i found one question in stack over flow related to what i am searching.
Link is : TYPE_WINDOWS_CHANGED accessibility service
By studying this comments i am getting it can be done in only api level 21 or above. but i need to use it in lower version also like api level 14. how can i use TYPE_WINDOWS_CHANGED in api level 14 too. if TYPE_WINDOWS_CHANGED cannot be used in api level 14 then what event can i use when new activity or window opened. Thanks.