XCode 8: how to adapt iphone app for iPAD

Question

Even if my client made me design an iOS app only for iphone devices, now he wants me to run it in iPADS too, as a preview before loading the app in the App Store (ipads 2 or 3). My app has many constraints so that it's showed good on any kind of iphone (> 5S). So, I set the "Targeted Device Family" to "1,2" in the info.plist of the app and I tried to install it in a pair of iPADs. Even if in iphone eberything is good like the following:

the same thing does not happen in the ipad:

I do not understand why everything is so magnified and not full-screen. What can I do just to fix this a little?

This is what I see in info.plist --> Build Settings

Answer 1

on XCode 12, you have to look for Targets -> General Tab...

Answer 2

I found these steps handy when you want your iPhone app to adapt for iPad -

1. Testing the complete app first
2. All screens design need to check for eg. Button or Images width and height as per iPad screen
3. Create different versions of XIBs for particular screens
4. Check if all images are in right resolutions
5. Handle auto-sizing and orientation
6. Find how and when to use the new iPad elements like split view controller, popover view controller, and popover list
7. An important tip - Be really careful never to have two popover controllers visible at the same time – it’s confusing to users and your app will get rejected if you do

Answer 3

Add key "UIRequiresFullScreen" and set Yes to your info.plist file

Answer 4

Set rather this value in your Target -> General settings:

My app is working properly on the iPad even with Target Device Family set to 1.