Fix/android legacy viewport calculation #8221
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- Exclude IME insets from bottom margin calculation in CapacitorWebView - Add keyboard handling configuration to Android template - Fixes extra scroll space equal to keyboard height when keyboard closes
- Enhanced edge-to-edge handler for Android 15+ (API 34+) - Added keyboard visibility detection and auto-scroll to focused inputs - Proper IME insets handling to prevent input field overlap - Maintains compatibility with older Android versions - Fixes keyboard covering bottom inputs in edge-to-edge mode
- Fix incorrect window.innerHeight and visualViewport.height values - Add navigation bar height detection and viewport correction - Inject CSS custom properties for safe-area-inset-bottom - Prevent UI overlap with keyboard on legacy Android devices - Maintains compatibility with existing edge-to-edge configurations Fixes ionic-team#8181
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Description
Fixes incorrect
window.innerHeightandvisualViewport.heightvalues on Android < 15 devices, which cause UI elements to be partially overlapped by the keyboard when navigation bars are present.Closes #8181
Problem
On Android < 15 devices with navigation bars (gesture or button navigation), the browser's viewport calculations don't account for the navigation bar height when the keyboard is open. This causes:
safe-area-inset-bottomalways returns 0Solution
Enhanced
CapacitorWebViewwith native viewport correction:visualViewport.heighton Android < 15--safe-area-inset-bottomTesting
Breaking Changes
None - maintains full backward compatibility.