Do all Android devices have a "sdcard" folder?

Question

I am creating an application that saves a file inside /mnt/sdcard/.myapp

Does the / mnt / sdcard folder exist on the Nexus 5 and G3, does it exist on all devices?

Answer 1

I am creating an application that saves a file inside /mnt/sdcard/.myapp

Please usegetExternalFilesDir() for a location unique to your location. Do not clutter the user's external root directory.

Does the / mnt / sdcard folder exist on the Nexus 5 and G3, does it exist on all devices?

Not necessary. If you must work with the root of the external storage, useEnvironment.getExternalStorageDirectory() to get it.