[manuel-rtsch]

What changed?

Settings > Keyboard — one page for the keypad preferences that used to be four separate rows on the Settings home: the module, the input mode, the Back key accessibility service and the custom mapping, with the key diagram underneath. (KeyboardSettingsScreen.kt, SettingsScreen.kt, KeypadDemo.kt)

• Settings home gains a single Keyboard row ("Keys & input") that opens the page; the old Keypad / Input mode / Keypad Back key rows are gone. The mapping editor is still reachable from the page ("Mapping", Automatic or Custom).
• The page shows the module currently in use, cycles it on tap unless a custom mapping fixes it, toggles the input mode, shows the Back-key service state, and draws KeypadDemo for the active module (new idleHint parameter).
• The diagram (new keyboard_settings_page.png) and the resulting Settings home (re-recorded settings_system_home.png) are committed; keypad_mapping_settings.png is replaced by the page's own baseline.

Rows that act in place vs rows that open a page (Item.kt)
SidekitItem gains secondaryToEnd (toggle values right-aligned) and showLinkArrow now draws the arrow whether or not a value is present, so a row reads as "this changes here" or "this opens another page" without a second convention. Settings uses the split: Launcher default and Compact layout stay compact toggle rows, Home app stays compact (it opens a system dialog), and Arrange apps / Case colour / Keyboard are full rows with the arrow.

Tests — KeypadMappingUiTest updated for the new route and rows.

Branch state

The branch is rebased directly onto current upstream/main (3debe06). The obsolete merge history and the duplicate screenshot-baseline commit from the old branch are gone. The work is now five focused commits: the four Keyboard commits plus Apply Spotless formatting.

How to test

1. ./gradlew :app:testDebugUnitTest then git status --short — must print nothing.
2. Settings → Keyboard. The page shows the active module, input mode, Back-key state and Mapping, plus the key diagram for that module.
3. Tap Keypad: the module cycles (the diagram follows). With a custom mapping, the row opens the mapping editor instead.
4. Tap Input mode: Numbers/Letters toggles, and typing uses it. Tap Mapping: the editor opens. Back returns to Settings.

Real-device testing

• Device model: Sidephone SP01_FE_GE
• Android version: 12
• Keypad or attached module, if relevant: built-in Sidephone keypad; no external module attached
• Commit tested: c790a06 — the latest commit, a13dd17, only applies Spotless formatting and does not change behavior
• Test steps and results: installed the .dev build, opened Settings → Keyboard, exercised module cycling, Input mode, Mapping and Back navigation, and checked that the key diagram follows the active module. The run was satisfactory.
• Screenshots, recording, or relevant logs: keyboard_settings_home.png, keyboard_settings_page.png are committed.

Checklist

• I created this branch from the latest main and this PR targets main.
• I kept this PR focused and described its changes above.
• I built the affected app and recorded the build command and result below.
• I tested the changed behavior on a physical device and completed the device details above.
• I checked nearby behavior for regressions, including keypad navigation and input when affected.
• I ran the relevant automated tests and recorded commands and results below.
• I added or updated tests where practical, or explained why no test is needed.
• I updated documentation when behavior or setup changed.
• I removed debug code, credentials, and personal data from the diff and test evidence.

Documentation remains unchecked: docs/keypad-mapping.md describes the mapping editor, not the Settings rows. Say if you want the Keyboard page added there.

Build and automated test results

Run on a13dd17, parent 3debe06:

• ./gradlew spotlessCheck :app:testDebugUnitTest — success; 392 app tests and 34 sidekit tests, 0 failures. git status --short afterwards: empty.
• ./gradlew :app:assembleDebug :app:lintDebug :sidekit:testDebugUnitTest — success; lintDebug completed with no errors.
• ./gradlew spotlessCheck — success after applying formatting.

Known issues and exceptions

• Dependency review CI is blocked by repository configuration. The job fails with “Dependency review is not supported on this repository” because Dependency graph is not enabled on the upstream repository; this is not caused by the branch.
• Screenshot tests never compare. roborazzi.test.record=true is hardcoded in app/build.gradle.kts, so the only signal is the dirty tree after a local run. Unchanged from main.

Maintainer review

Changes to main require approval from @HarlenPostill. Request review only when the required testing is complete.