SwiftUI List performance

I'm not sure -- the tags of his post list medical, heart, etc. Ya never know with a newbie. 🙂

I had forced restarted it twice (verified by trying to access Siri since I could still access it), I tried accessing it through iTunes to see if there was anything I could do. Kept telling me it was corrupt. (I decrypted my backup, and it forced a fresh backup. This resolved the corrupt error messages). I've searched throught the Apple Docs for anything more, and there was one or two items listed there to try. After that, that is when I called Apple Support and downloaded iOS 8.4 for loading.I just did another force restart, and it restored the screen (forth attempt as I was trying to get around Find My iPhone). I'm seriously debating on removing iOS 9 still -,-'

The problem is with outgoing servers.... Can't edit the list of outgoing servers so I continually get errors.

This solution does work for outgoing servers.Select the account with the problem and click on the Advanced tab. Uncheck the first item in the list automatically detect and maintain account settings.Now click on the Account Information tab and uncheck Use on this serverSelect the Outgoing Mail Server drop down list. Select Edit SMTP servers and you should now see your missing servers listed in the server list name.iCloud server reappareared for me at that point and when selected it all worked agian with the correct outgoing server. I rechecked the two boxes again once it was all working.Hope this helps.😀

SecKeyCreateFromPublicDataLooking at the source for SecKeyCreatePublicFromPrivate it really seems to resolve down to a call to SecItemExport on the private key, asking for an export format of kSecFormatBSAFE (at least for RSA keys). That's public API, so there's no reason you can't use it.I'm having trouble with this too. I don't really understand how this is supposed to work. Without specifying some export parameter to the export function, how does it know whether it should export the private key or derive the public key and export that?Using what loosegoose posted above, I can verify that :1. I am passing in a PKCS8 PEM encoded 1024 unencrypted RSA private key. Specifiying kSecFormatBSAFE allows me to import the key.2. When I try to export the item and specify kSecFormatBSAFE, I get a PKCS8 1024 unencrypted RSA private key (the same one byte for byte I passed in). If I specify kSecFormatOpenSSL, I get a PKCS1 1024 RSA Private key.This all follows what I would expect from this table listed in Apple

What version is listed in Settings > General > About? If a hard reset doesn't work, try turning wifi off and on again. I know these seem like simplistic fixes, but they've been successful in similar situations.