Get some more practice connecting views from your storyboard to outlets that you can access from Swift code.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5993-your-first-ios-app/lessons/18
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5993-your-first-ios-app/lessons/18
Thank you for the great challenge again! Could you elaborate more on
func updateLabels() {
targetLabel.text = String(targetValue)
I don’t quite get the .text & the reason we have to change Int value to String value.
@jongwon.kim You can’t assign targetValue to the label’s text property directly because they are different types: targetValue is an Int and text is a String:
https://developer.apple.com/documentation/uikit/uilabel/1620538-text
You first have to cast targetValue to a String before assigning it to the label’s text property.
Please let me know if you have any more questions or issues about the whole thing. Thank you!
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Great tutorial! With respect to the Your First iOS app - Part 18:Challenge:
I’m getting this message even when I copy and paste the downloaded course material on line 56 of the .swift file:
Thread 1: Fatal error: Unexpectedly found nil while implicitly unwrapping an Optional value
Also, in the Main storyboard, when I right-click the display label in order to connect the New Referencing Object to the View Controller, I am not getting a “targetLabel” option…only a “view” option.
Please help 
@paulpersad Does this happen when you run the sample project as well?