UI Review

Post-Build UI Review

After a successful build, capture screenshots and evaluate the visual quality of the generated app. This ensures the UI matches expectations before finalization.

Workflow

Step 1: Capture Screenshots

Call nw_capture_screenshots with the project directory and scheme name. This:

• Boots the iOS simulator
• Builds and installs the app
• Captures the launch screen
• Returns the screenshot path and simulator UDID

Step 2: Evaluate Each Screenshot

Read each screenshot file to view it with your vision capability. For each screen, evaluate against the checklist in references/evaluation-checklist.

Step 3: Collect All Findings

Gather all findings from all screenshots into a single list, ordered by severity:

• Critical — app is broken, blank screen, crash on launch
• High — missing content, broken layout, unreadable text
• Medium — AppTheme violations, spacing issues, alignment problems
• Low — minor polish (shadows, border radius consistency)

Step 4: Fix Sequentially

Fix issues ONE AT A TIME, rebuilding between each fix. This prevents cascading breakage from simultaneous changes to shared components.

Process for each fix:

1. Identify the file(s) that need changes
2. Make the minimal edit
3. Rebuild with nw_xcode_build
4. Recapture with nw_capture_screenshots to verify the fix
5. Confirm the fix didn't break other screens
6. Move to the next issue

Step 5: Final Verification

After all fixes, do one final nw_capture_screenshots pass. Read the screenshot and confirm all findings are resolved.

Capturing Additional Screens

The simulator stays running after nw_capture_screenshots. To capture other screens:

# Navigate to a different tab/screen (if the app supports deep links)
xcrun simctl openurl <UDID> "myapp://settings"

# Capture the current screen
xcrun simctl io <UDID> screenshot /path/to/project/screenshots/review/settings.png

For apps without deep links, you cannot navigate programmatically — evaluate only the launch screen.

When to Skip

Skip the UI review if:

• The build failed (fix compilation first)
• The user explicitly says "don't review" or "ship it"
• This is a quick edit to a single file (not a full build)