Design a WiFi Scanner app

Looking for an Andriod app to be created that functions as a WiFi scanner, however, I would like to be able to limit the scan to one channel. Normally a WiFi Scans all 2.4GHz channels and then does all 5GHz channels - this process can take a while to complete (20+ seconds) as it scans each channel individually. I'd like the scanner to continuously scanner one channel, displaying a real-time RSSI value (in dBm) which is not delayed by other channels being scanned. The ability of the app to scan only one channel and give a continuous real-time RSSI is the critical feature of this app. I would like the App to: 1. Load, giving a list of channels to choose from (both 2.4GHz and 5GHz channels including DFS channels). 2. It then displays all SSIDs on that channel, from here a user can select which SSID to monitor. 3. The App shows the real-time RSSI (in dBm) value of the SSID, with two buttons: a. "Save" this then saves the current RSSI reading and time-stamp into a table below the real-time value. Up to two saved RSSI values can be stored in the table. The table will have a third line which calculates the attenuation between the two values, i.e. subtract the RSSI value from the first line of the table with the second line. b. "Clear" this will then clear the table, ready for more measurements to be taken. Each page should have a button at the top of the screen which takes it back one page. The app should auto adjust the screen size of the Andriod device and look relatively natural on all screen sizes. Attached is some basic layouts of each screen. Please ask questions to confirm anything which seems unclear.