It all depends what you want to do in app. But using Market is possible in any app.

You can download C++. Search for C++ in appstore and have a look at this: h t t p s : / / w w w.wikihow.com/Set-Up-C%2B%2B-and-Write-Code-on-Xcode And yes, you should use Xcode. If you plan to publish your app, you have to. Good luck.

Did you test both methods ? Do you get the same result (hope so). On which criteria do you want to know which is best ? I would probably prefer sin, to be sure to use the right referential.

I would be surprised there is a specific IR sensor for pupil. AFAIU, it is just image extraction. And that's why probably doc states about left and rightPupil : This value may be inaccurate if the eye is blinking.

Aren't leftPupil and rightPupil properties of VNFaceLandmarks2D providing this ?

Do you get different values for both for eyes that are open outward or close inward?

I think the answer's here: https://developer.apple.com/forums/thread/691284 In iOS 15 there's a new property on UITableView called fillerRowHeight (documentation), which allows you to re-enable them for plain-style table views if desired, and even control the height of the filler rows (adjust the spacing between these extra separators).

Maybe problem related to the one reported here? : https://developer.apple.com/forums/thread/691284 In iOS 15 there's a new property on UITableView called fillerRowHeight (documentation), which allows you to re-enable them for plain-style table views if desired, and even control the height of the filler rows (adjust the spacing between these extra separators). Did you file a bug report ?

If you hover your mouse over the greyed option, you will get an explanation like this: In some cases there is no standard constraint. What is the constraint you want to add ? From the object to what ? A good way to add constraint is to control drag from the object to the one you want to set relative constraint and select from the menu. So explain what you want precisely as constraint, we'll tell how to achieve.

So, do it differently: select the table view cell. Control drag from the Text Field to the "Content" You will get the menu to select the leading constraint: Then in Size Inspector, select the constraint (it will have a value, as 24) Type on Edit in the constraint remove the value. Standard will appear instead of value. It's done.

I think Rosetta is covered by the developer agreement you sign. What I would do, when submitting, is to add a comment for the reviewer, stating that you use Rosetta 2 and understood that its use is covered by Apple Developer Program License Agreement. You will see if they reply to this.

While waiting for support answer, you may have a look here: h t t p s : / / w w w.macworld.co.uk/how-to/clear-cache-iphone-3609079/

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You can edit shortcuts to your convenience in Xcode preferences > key bindings. Then change one of them, for instance adding a type on control: control-command-alt-[

In your example, what are ImageX.png", ImageY.png (X and √) ? Or √ and X ? To avoid the problem, could you proceed in 2 phases: Create a temp pdf, with only page number (not page n / N) or a dummy N Then you know the number of pages Create the final pdf with the full footer. Note: even if this worked, a bug report is needed as you say it is a regression from iOS 14.