#Swift share custom text social media how to#

In addition to sharing their own ideas, users can engage with the content other people share on Facebook by reacting to it with a like, a laugh, disapproval, and even a hug. By sharing content like text status posts, images, videos, and external links like blog posts, Facebook users can contribute ideas and join conversations with other people who share the same or different interests. That said, it’s time for some coding.Facebook is a social media network that connects people through an online platform. In addition, and in order to make things a bit more interesting, we’ll prefix the entered hex value with the hashtag (#) symbol once the editing of the text field has finished. On top of that, on macOS we have the ability to check what users enter while typing, and avoid to display invalid characters. This applies to iOS apps, as in macOS things are a bit different. In order to keep things simple, we’ll disregard the alpha value, so a valid hex from now on in this post is meant to contain six characters.Īs you’ll see next, even though it’ll be possible for users to type whatever they want in the text field, our formatter will help keep only valid hex values, disregarding anything else.

To demonstrate how to create a custom formatter, we’ll implement one that will be allowing to represent hexadecimal (hex) color values in text fields. For reference, I will prompt you to this page even though the documentation is not so recent and it’s in Objective-C, it actually contains all available methods that we can include in a custom formatter.

There are also a few optional methods that we may implement if that seems to be necessary. Gets or creates the object’s value from the textual representation.Specifies the textual representation of an object’s value.After that, there are a couple of required methods to implement, where we define the custom logic that: The first step is to define a new type (class) that will be inheriting from the Formatter class that is the Swift version of NSFormatter which comes from Objective-C. The recipe to implement a custom formatter is relatively simple. There is an alternative in those circumstances to create our own custom formatters.

However, there are often cases where no built-in formatters exist to format the displayed values as needed. A collection of them can be found in this official documentation page. Swift provides a few formatters that allow to properly format the textual representation of values in text fields or text views. Not only it increases the overall user experience, but it also makes it instantly clear what the meaning of that number is. Displaying a currency symbol along with the actual amount is important. Think, for example, of a text field that allows users to edit currency values. It’s part of the job to display all that as much as user-friendly as possible, and provide an actual information not just mere data. When implementing apps that contain fields or views with values of various types, we soon come to a point where it becomes necessary to format appropriately when representing them visually.

#Swift share custom text social media how to#