Populate portal wifi with saved credentials

[vanceb]

How can I populate the config portal ssid and password fields from saved credentials?

It is possible to set the initial values for custom parameters by providing the values when you setup the parameter. How can I get a similar effect for the ssid, ssid1 and password, password1 fields? They are always blank, even when there are saved credentials!

Steps to Reproduce

Start the config portal and set the SSID and passwords for 2 different networks.
Make sure that it connects to at least one of the configured networks and that credentials are stored.
Reboot and initiate the config portal again - The saved credentials are not populated into the ssid1, ssid2, password1, password2 fields - they are empty

Expected behavior

I expect the wifi fields ssid1, ssid2, password1, password2 fields to be populated with the previously saved values

Actual behavior

The ssid1, ssid2, password1, password2 fields are blank

[khoih-prog]

You really don't need to do anything for SSID/PWD fields. If leaving them blank, the stored SSIDs/PWDs will be auto reuse. The real reason for the design is that only displaying Credentials on CP when necessary to avoid Security risk (somebody sees your secrets !!!)

Try and see.

Anyway, check the new ESP_WiFiManager v1.12.0, with the new optional feature

// To not display stored SSIDs and PWDs on Config Portal, select false. Default is true
// Even the stored Credentials are not display, just leave them all blank to reconnect and reuse the stored Credentials 
//#define DISPLAY_STORED_CREDENTIALS_IN_CP        false

Also a hint is added over the SSID/PWD fields

*Hint: To reuse the saved WiFi credentials, leave SSID and PWD fields empty

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Releases v1.12.0

1. Optionally display Credentials (SSIDs, PWDs) in Config Portal. Check Populate portal wifi with saved credentials #91
2. Display Credentials Hint on Config Portal
3. Periodic code clean-up