Due to changes in the Android OS, support for Android PIE 9 is limited. The operating system limits the application to 4 scans per 2 minutes. The future Android Q 10 will probably remove any support for wifi scanning for applications. Proof below. This application is tested and provided primary for Android 8.1 and lower. If you have a higher version or upgrade to the higher version, it’s up to you.
Supported Android
{4.0 and UP}
Supported Android Version:-
Jelly Bean(4.1–4.3.1)- KitKat (4.4–4.4.4)- Lollipop (5.0–5.0.2) – Marshmallow (6.0 – 6.0.1) – Nougat (7.0 – 7.1.1) – Oreo (8.0-8.1) – Pie (9.0)