PickerView | A customizable alternative to UIPickerView in Swift | User Interface library

try something like this:

As you've discovered view.backgroundColor expects a value of type UIColor and unfortunately all you have available is a String. There's no direct conversion but there are two approaches you can take here:

1. Run a second array that contains UIColor values

You're presenting your picker options using a colors array here:

use completion closure to "return" your points. Try something like this:

Good question. I haven't done a lot with this specific scenario but I've done similar stuff with UITableView. Some ideas:

1. Double check the following: isUserEnabled is true for the whole set of subviews from parentView down to imageView? Is imageView toward the front? Maybe make imageView.layer.zPosition closer to 1 and others farther back? You can double check this in simulator with the debug view hierarchy stack icon: Debug View Hierarchy Icon in XCode
2. Work around: Does it need to happen on a click or can you just play a small sample when you hit the didSelectRow delegate method?

This worked for me.

Having a UIDocumentPickerViewController subclass that creates an instance of the regular UIDocumentPickerViewController is a bit confusing, and it's missing a clear means to actually present it. You might want to try this protocol/delegate solution instead:

Define a protocol

The problem is that you're printing at a bad moment. You printing in pickerView(_:titleForRow:forComponent). This is like looking to see how the sausage is made. You are assuming that just because you choose a certain row, that is also the row that the picker view wants the title for. But there is actually no connection between those two things. The row that needs its title is not the row you chose.

Instead, implement pickerView(_:didSelectRow:inComponent:) and put your print call there. You will see that when you choose a row, that is indeed the row that the picker view thinks you chose.

You can either listen to the pickerView(_:didSelectRow:inComponent) and record the row value as the user changes the selection, or ask the picker for its selected row (using the selectedRow(inComponent:) method) when the user taps your done button.

Your Description.text = "You are \(gender)." code doesn't make sense, since gender appears to be an array of gender values. I would expect that to to read Description.text = "You are \(gender[selectedRow])." (assuming you save the selected row to an instance var selectedRow.)

Note that instance variables should begin with lower-case letters, and types should start with upper-case letters. Thus Description should be description.

There is a strong convention in Swift to use case consistently (Class and type names should be upper "camel case" and variables and values should be named with lower camel case.

Another thought:

I would suggest making Gender an enum:

From my understanding you want to achieve the following behavior:

1. You would like to show the what the user selected in a picker view inside a textfield.
2. But you don't want the user to change the text after the text has been inserted in the textfield.

I would use the delegate methods of UITextField and UIPickerView. There is a method in UIPickerViewDelegate that lets you know which row was selected by the user: