As we've mentioned, both iOS and Android have differing opinions as to what a launch screen should be, and whether or not it is even required. What's really important to know is that neither Apple, nor Google, particularly requires you to adhere to their guidelines when it comes to launch screens. For Apple especially, it's just important that the launch screen exists. They won't check whether it matches what your user interface would look like with no data.
For our app, we'll take the slightly abstract launch screen approach (the fourth launch screen in the prior section). This lets us simplify the export of the launch screens in all the various resolutions by using automation utilities rather than doing it all by hand.
We can't cover all the steps involved in creating the initial launch screen, since they would vary based upon your use cases, your app's user interface, and your graphic editor, but we can cover what you'll have to do at a high level. You should be...