Recording summary · November 2015
How to disable and enable a button in Xcode 7 macbook pro
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Overview
Daniel presents an Xcode tutorial in Objective-C demonstrating how to set up a project, move a label using a button, and toggle button states using the enabled property.
Themes
Project setup and storyboard configuration in Xcode using Objective-C.
Implementing button functionality to move a label using CGPoint make adjustments.
Disabling and enabling buttons using the enabled property.
Developments
Daniel creates a new Single View Application project in Xcode.
Daniel disables Auto Layout and Size Classes in the storyboard.
Daniel creates a Cocoa Touch Class named Button and sets it as the custom class of the view controller.
Daniel replaces an image view with a label and adds an Up button on the storyboard.
Daniel declares and connects the outlets and IBAction for the label and Up button.
Daniel codes the UpButton IBAction to adjust the label's vertical position and verifies it by running the app.
Daniel adds enable and disable buttons, hooks up their respective IBActions, and sets up.enabled to NO and YES.
Daniel tests the enable and disable buttons, confirming that the up button stops and resumes working as expected.
Uncertainties & gaps
Daniel questions whether a semicolon was needed under implementation while coding.
Daniel initially expresses confusion over unexpected behavior while wiring storyboard actions.