Have you ever faced large header height for iphones??

Like this one

large-header

Well then you can fix this easily with one line of code

In your navigator’s default navigation options add this

headerForceInset: { top: "never", bottom: "never" }

So It will be something like

const awesomeNavigator = createStackNavigator({
	// all screens
}, {
	defaultNavigationOptions: {
		headerForceInset: { top: "never", bottom: "never" }
	}
})

Now it changes to

normal-header

This post is also available on DEV.