Xamarin - Dependencyservice NULL

Question

Dear friends, good morning!

I started seeing a tutorial to develop a simple app in Xamarin with Sqlite, but I have a problem, with an object that calls Dependencyservice, they always come null, and I’m not managing to find the solution.

Below is the source code:

Connection class:

Iconfig interface:

Problem:

My config object, is null, how do I adjust it? I read to add an attribute of [Assembly: Depencendy(typeof(xxxxx)]. I don’t understand about it, I don’t know what I need to go through in the typeof, if I pass my current class, or if I pass the Dependencyservice class.

I await answers.

Att.

Felipe Duarte

Answer 1

If you are using Xamarin Forms, you probably need to implement the Iconfig interface on each platform. For example, in the Meudb.Droid project, add the following class:

[assembly: Dependency(typeof(ConfigDroid))]
namespace MeuDb.Droid
{
    public class ConfigDroid : IConfig
    {

        private string DiretorioSQLite
        {
            get
            {
                return Environment.GetFolderPath(Environment.SpecialFolder.Personal);
            }
        }

        private ISQLitePlatform Plataforma
        {
            get
            {
                return new SQLite.Net.Platform.XamarinAndroid.SQLitePlatformAndroid();
            }
        }
    }
}

Then you need to do the same implementation for other platforms you’re working on, IOS or Windows Phone.