iOS Help with Custom Keyboard & stickers

[Reach9]

I'm learning iOS dev on my own and i'm trying to make a custom keyboard of stickers in Objective-C, for messaging. I'm going to put UIImageViews in a UICollectionView and when the user taps on a cell, I'll post the UIImage (the sticker) in that tapped cell, into the conversation.

My plan is to take a sheet of all the stickers and make empty cells but associate those cells with the stickers and it'll be posted when the user taps on them. I believe this method would be less data reliant than updating every cell.

I've already made a normal custom keyboard but..

I'm not sure exactly how to architect the collectionview of stickers in the keyboard, and I was wondering if I could get some guidance here. Thanks!

 

[AxoNeuron]

I may be wrong but I don't believe what you're trying to do is possible in iOS. A custom keyboard is still a keyboard that inputs normal UTF8 characters including emoji. I don't think you'll be able to actually insert images into standard text fields.

 

[Reach9]

I may be wrong but I don't believe what you're trying to do is possible in iOS. A custom keyboard is still a keyboard that inputs normal UTF8 characters including emoji. I don't think you'll be able to actually insert images into standard text fields.

Thanks for the reply AxoNeuron.
Upon further researching I realized you're right. It's not possible to post Images from the keyboard and I figured out that these "stickers keyboards" are just UIViews.

I was wondering if someone could help me translate the following Swift code to Objective-C:

var proxy = textDocumentProxy as UITextDocumentProxy

When I typed in UITextDocumentProxy on Xcode in Objective-C it did not see it as a class, why not? I get the following error "Use of undeclared identifier 'UITextDocumentProxy'"

Any advice would be great, thanks.