How to use wide camera to record video m21 phone?

how to use wide camera? hey, i am a android developer, and i have a camera app. and Samsung android os system has a error on m21. there are 3 cam ids 0 is back camera(not the wide one), and both cam id 1 and cam id 2 is front same camera, there are no way to access back wide camera from the code. can you notify this to Samsung m21 engineers ??? not only me other developers also face this problem. (see the link)

please help me. in english will be a big help for me. can you tell me how to use wide camera with camera api android sdk?

please help me. in english will be a big help for me. can you tell me how to use wide camera with camera api android sdk?