In this section we are going to apply a common technique for extending on standard iOS classes. In the UIColor class, there is no function for applying hex strings to determine a color, so let's add this on top. Create a new folder called Extensions, add in a new file called UIColorExtensions.cs, and implement the following:
public static class UIColorExtensions
{
public static UIColor FromHex(this UIColor color, string hexValue, float alpha = 1.0f)
{
var colorString = hexValue.Replace("#", "");
if (alpha > 1.0f)
{
alpha = 1.0f;
}
else if (alpha < 0.0f)
{
alpha = 0.0f;
}
float red, green, blue;
switch (colorString.Length)
{
case 3: // #RGB
{
...