fix(statusbar): give statusBarView initial layout params so it cannot cover the WebView

[cyril23]

Platforms affected

Android

Motivation and Context

Fixes #1947.

CordovaActivity.createViews adds statusBarView to rootLayout without LayoutParams and only sizes it inside rootLayout's OnApplyWindowInsetsListener, so the view starts with FrameLayout's default MATCH_PARENT x MATCH_PARENT. On API 21–27 the listener never runs once SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN is cleared (e.g. by cordova-plugin-statusbar's Android side for StatusBarOverlaysWebView=false): WindowCompat.setDecorFitsSystemWindows(window, false) is only emulated through that flag below API 30, and without it the decor's fitsSystemWindows content root consumes the insets before they reach rootLayout (on API 28/29 the dispatch happens to continue because of the display-cutout part of WindowInsets.isConsumed(), on API 30+ Window.setDecorFitsSystemWindows(false) makes the content root pass them through). The view then covers the whole WebView, painted in the status-bar color by SystemBarPlugin — the app shows only a solid color after the splash screen. Full analysis with a dumpsys view hierarchy in #1947.

Description

Give statusBarView initial LayoutParams(MATCH_PARENT, 0, Gravity.TOP). When insets arrive, the listener resizes the view exactly as before; when they never arrive, the view stays 0 px high instead of covering the WebView.

Testing

Samsung Galaxy S7, Android 8.0.0 (API 26), Chrome WebView 138, cordova-plugin-statusbar 4.0.0 with StatusBarOverlaysWebView=false, app sets StatusBarBackgroundColor=#2A95D2 (AndroidEdgeToEdge default). Before: full-screen colored view over the WebView (dumpsys activity top: View{… 0,0-1080,1848} above SystemWebView{… 0,0-1080,1848}). After: app visible, status bar as expected (View{… 0,0-1080,0}).

before (top of the screen)	after

• Samsung XCover 5 (Android 14), Pixel 6a (Android 17): unchanged behavior, status bar view sized to the inset as before.
• Same S7 with the trigger removed (statusbar plugin without its Android side): the listener runs, the view is sized to the inset, soft keyboard (IME insets) behaves correctly on API 26.
• Unpatched reference on x86_64 emulators API 28 / 29 / 30: not affected (view sized 0 px / 0 px / inset height by the listener), see Statusbar overlays complete app when setting StatusBarOverlaysWebView to false on Android 7/8 using cordova-plugin-statusbar #1947 for the hierarchies.

The change was applied to cordova-android 15.1.0 via an after_prepare hook in our app for these tests (our app itself now avoids the trigger by not installing the statusbar plugin's Android side). npm run lint and the 337 JS specs pass; java-unit-tests was not run locally (no Android SDK on the machine used for the PR), the Java change was verified with the device builds above.

Checklist

• I've run the tests to see all new and existing tests pass (lint + JS specs; Java tests: see Testing)
• I added automated test coverage as appropriate for this change (no Java view tests exist for this code path)
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android)) — repo convention fix(statusbar): used
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary (none needed)

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.20%. Comparing base (a637442) to head (c13742b).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2009   +/-   ##
=======================================
  Coverage   63.20%   63.20%           
=======================================
  Files          24       24           
  Lines        4922     4922           
=======================================
  Hits         3111     3111           
  Misses       1811     1811           

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