johuether commented on issue #1949:
URL:
https://github.com/apache/cordova-android/issues/1949#issuecomment-5206498790
---
Hi! I'm also affected by this and think it's a real bug/problem. I've
narrowed it down a bit further on the native side.
My setup: an app that targets Android 17 (API 36) and uses edge-to-edge
mode. Looks good on newer Android versions, but on older devices the status bar
is solid black and can't be made transparent through the plugin
(`window.statusbar.setBackgroundColor(...)` with a transparent/alpha color).
### What I found
Even when the correct ARGB value actually reaches the native side,
`SystemBarPlugin.updateStatusBar()` unconditionally paints the color onto the
in-app `statusBar` overlay:
```java
View statusBar = getStatusBarView(webView);
if (statusBar != null) {
statusBar.setBackgroundColor(bgColor);
}
```
That overlay approach is what's needed on API 35+ (Android 15+,
`VANILLA_ICE_CREAM`), where the platform ignores
`window.setStatusBarColor(...)` and forces the bar transparent. On older
devices, though, `setStatusBarColor(...)` works at the window level - but only
if the window is allowed to draw its own system bar background. Without that, a
transparent request just gets ignored and the bar falls back to the default
opaque/black decoration, which is exactly the black bar I'm seeing.
### Suggested fix
Branch on the build version: on API 35+ keep the overlay behavior, on older
devices set the color directly at the window level. Picking one path or the
other also avoids double-blending translucent colors.
```java
@SuppressWarnings("deprecation")
private void updateStatusBar(int bgColor) {
Window window = cordova.getActivity().getWindow();
// API 35+ ignores window.setStatusBarColor (the platform forces the
bar
// transparent), so paint via the in-app overlay there. On older
devices
// color the system bar directly at the window level. Using one or
the
// other (not both) also avoids double-blending translucent colors.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
View statusBar = getStatusBarView(webView);
if (statusBar != null) {
statusBar.setBackgroundColor(bgColor);
}
} else {
window.setStatusBarColor(bgColor);
}
// Automatically set the font and icon color of the system bars
based on background color.
boolean isStatusBarBackgroundColorLight;
if (bgColor == Color.TRANSPARENT) {
isStatusBarBackgroundColorLight = isColorLight(getUiModeColor());
} else {
isStatusBarBackgroundColorLight = isColorLight(bgColor);
}
WindowInsetsControllerCompat controllerCompat =
WindowCompat.getInsetsController(window, window.getDecorView());
controllerCompat.setAppearanceLightStatusBars(isStatusBarBackgroundColorLight);
}
```
With this the status bar becomes properly transparent on older devices in
edge-to-edge mode, and API 35+ keeps the current overlay behavior. Happy to
turn it into a PR if there's interest.
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