As per my previous post Change the colour of the status bar on Android (in Xamarin Forms) we might wish to change the status bar on iOS.
Open Info.plist in a code editor and add the following (if it does not already exist)
<key>UIStatusBarStyle</key> <string>UIStatusBarStyleLightContent</string> <key>UIViewControllerBasedStatusBarAppearance</key> <false/>
Basically we’re disabling the status bar from taking it’s appearance from the preferred style of the current view controller – see UIViewControllerBasedStatusBarAppearance.