ios26 fixes

[ps2]

Along with the changes in LoopKit/LoopKit#573, this has the following fixes:

• DIsabled actions buttons look disabled
• Information views do not auto-dismiss
• Saving values in warning ranges works again

Should fix #2360

[marionbarker]

Test

Use LoopWorkspace branch release/3.8.2 which is being prepared for release soon.
For Loop and LoopKit, modify to use branch ps2/ios26-fixes for each.

Configuration:

For iOS 26:

• SE 3rd gen phone running iOS 26.0.1
• CGM Nightscout
• Pump Simulator

For iOS 18:

• SE 2nd gen phone running iOS 18.7.1
• CGM Nightscout
• Pump Simulator

Use the same test table as from Issue #2360.

Each row in the table was tested with this version of iOS 26 and iOS 18 phones.

• The ✅ indicates nominal behavior that used to have an ❌.
• The word "ok" indicates it was nominal in the table from Issue 2360 and still nominal with this test
• The indication ✅2️⃣ indicates an SE specific failing that is still present with iOS 26 but now the change in therapy takes place as expected

The indication 2️⃣ is a different failure, see Issue #2267 - this issue is not fixed and only affects SE phones. I don't have a non-SE iOS 26 phone to test, but the therapy settings do get updated just not reflected in therapy settings screen right away and the fact that items that are marked ❌ before and are marked ✅2️⃣ counts as a fix for me. Example of a 2️⃣ is given below for basal rate:

• Modify basal rate, authenticate and the Therapy screen is shown with the old basal rate
• Return to main screen and then return to the Therapy screen
• Observe that the new basal rate is now shown
• Note that this issue is specific to SE phones for iOS 18 (and is seen for iOS 26)

Test Table

| Therapy Setting | initial | final | yellow/red | iOS 26 | iOS 18 |
|:--|:--|:--|:-:|:-:|:-:|:-:|
| Glucose Safety | 70 | 75 | n | ok | ok |
| Glucose Safety | 75 | 70 | y | ✅ | ok |
| Target | 100-120 | 100-110 | n | ok | ok |
| Target | 100-110 | 100-120 | y | ✅ | ok |
| Carb Ratio | 8 | 30 | y | ✅ | ok |
| Carb Ratio | 30 | 8 | n | ok | ok |
| Basal Rate | 0.5 | 0.65 | n/a | 2️⃣ | 2️⃣ |
| Max Basal | 4 | 5 | y | ✅2️⃣ | 2️⃣ |
| Max Bolus | 8 | 20 | y | ✅2️⃣ | 2️⃣ |
| ISF | 50 | 10 | y | ✅ | ok |
| ISF | 10 | 50 | n | ok | ok |

[marionbarker]

Approve based on test. See #2371 (comment) which indicates failures described in #2360 are fixed.

I don't have an example where the inactive button was not grey and where information views auto-dismissed, so I can't demonstrate these are fixed. But willing to approve and accept this change without that test.

I did test all three fixes as reported in comments below.

[marionbarker]

Test Part 2

The dismissing info views is fixed with this PR.

"If you tap on the little info icon on any setting, the screen would dismiss in a second or so, automatically."

• Test with the code in this PR on iOS 26 phone - this does not happen
• Load version 3.9.1 from TestFlight onto the iOS phone - observe this behavior

[marionbarker]

Test Part 3

The "DIsabled actions buttons should look disabled" is fixed with this pair of PRs

Extra information:

If you would go to edit any therapy but hadn't changed anything, the button would be blue, like it could be clicked on.

I tested the buttons with this PR with LoopKit PR 573

• Therapy, Carb entry, Bolus entry, etc - all buttons behavior appeared nominal, grey when inactive, blue when active

I then restored to the version without Loop PR 2371 / LoopKit PR 573

• Therapy save buttons were blue all the time, even when no change had been made and thus they were actually inactive