Welcome toVigges Developer Community-Open, Learning,Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
822 views
in Technique[技术] by (71.8m points)

xamarin - New equivalent for old onPlatform method used in C# WITH Type Arguement

So I'm in this udemy class, and they used a deprecated piece of code below. I realize a switch or if statement would work for this, but I wanted to see if there was something other than RuntimePlatform with a switch to replace this. I did like this functionality after all.

Device.OnPlatform<Thickness>(
iOS: new Thickness(0, 20, 0, 0),
Android: new Thickness(0, 10, 0, 0),
WinPhone: new Thickness(0, 10, 0, 0));

Admittedly it did not appear like it, but i'm hoping to be pleasantly surprised!

question from:https://stackoverflow.com/questions/65930781/new-equivalent-for-old-onplatform-method-used-in-c-sharp-with-type-arguement

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Sorry to not surprise you... As you know this has been depreciated, the idea is to use Device.RuntimePlatform which returns a string.

No, there is no other method unless you make one. If you really dislike the switch syntax, you could use a switch expression though

var something = Device.RuntimePlatform switch
{
   "iOS" => new Thickness(0, 20, 0, 0),
   "Android" => new Thickness(0, 10, 0, 0),
   "WinPhone" =>  new Thickness(0, 10, 0, 0),
   _ => throw new ArgumentOutOfRangeException()
};

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to Vigges Developer Community for programmer and developer-Open, Learning and Share
...