I have an app which needs to create its own folder in memory I use this code and it's working up to android 9 (API 28) but when I installed it on android 10 (API 29) it doesn't make folder and app closes without reason. Here is my code:
String V0;
File Train_Folder;
Train_Folder = new File(Environment.getExternalStorageDirectory() + "/Navgan/" + V0 + "/");
this folder Navgan
is unique for the app and no any other apps use this folder.
I tried some solutions suggested on SO but didn't work for me.
Thank you