public static T Get <T>(DependencyFetchTarget fetchTarget = DependencyFetchTarget.GlobalInstance) where T : class
{
Initialize();
Type targetType = typeof(T);
if (!DependencyImplementations.ContainsKey(targetType))
{
Type implementor = FindImplementor(targetType);
DependencyImplementations[targetType] = implementor != null ? new DependencyData {
ImplementorType = implementor
} : null;
}
DependencyData dependencyImplementation = DependencyImplementations[targetType];
if (dependencyImplementation == null)
{
return(null);
}
if (fetchTarget == DependencyFetchTarget.GlobalInstance)
{
if (dependencyImplementation.GlobalInstance == null)
{
dependencyImplementation.GlobalInstance = Activator.CreateInstance(dependencyImplementation.ImplementorType);
}
return((T)dependencyImplementation.GlobalInstance);
}
return((T)Activator.CreateInstance(dependencyImplementation.ImplementorType));
}
public static object Resolve(Type serviceType, DependencyFetchTarget fallbackFetchTarget = DependencyFetchTarget.GlobalInstance)
{
if (serviceType is null)
{
throw new ArgumentNullException(nameof(serviceType));
}
var result = DependencyResolver.Resolve(serviceType);
return(result ?? Get(serviceType, fallbackFetchTarget));
}
/// <summary>
/// Get Xamarin service from type instead of generic parameter
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static object Get(Type type, DependencyFetchTarget DependencyFetchTarget = DependencyFetchTarget.GlobalInstance)
{
MethodInfo baseMethod = null;
MethodInfo getMethod = null;
getMethod = SymbolExtensions.GetMethodInfo(() => DependencyService.Get <object>(DependencyFetchTarget));
baseMethod = getMethod.GetGenericMethodDefinition();
MethodInfo genericMethod = baseMethod.MakeGenericMethod(new Type[] { type });
return(genericMethod.Invoke(null, new object[] { DependencyFetchTarget }));
}
public static object Get(Type targetType, DependencyFetchTarget fetchTarget = DependencyFetchTarget.GlobalInstance)
{
if (targetType is null)
{
throw new ArgumentNullException(nameof(targetType));
}
Initialize();
DependencyData dependencyImplementation;
lock (s_dependencyLock)
{
if (!DependencyImplementations.TryGetValue(targetType, out dependencyImplementation))
{
Type implementor = FindImplementor(targetType);
DependencyImplementations[targetType] = (dependencyImplementation = implementor != null ? new DependencyData {
ImplementorType = implementor
} : null);
}
}
if (dependencyImplementation == null)
{
return(null);
}
if (fetchTarget == DependencyFetchTarget.GlobalInstance)
{
if (dependencyImplementation.GlobalInstance == null)
{
lock (dependencyImplementation)
{
if (dependencyImplementation.GlobalInstance == null)
{
dependencyImplementation.GlobalInstance = Activator.CreateInstance(dependencyImplementation.ImplementorType);
}
}
}
return(dependencyImplementation.GlobalInstance);
}
return(Activator.CreateInstance(dependencyImplementation.ImplementorType));
}
public IEnumerable <TSharedInterface> Get <TSharedInterface>(DependencyFetchTarget fetchTarget = DependencyFetchTarget.GlobalInstance) where TSharedInterface : class
{
Type type = typeof(TSharedInterface);
IList <Type> implementationTypes;
if (!this.dependencyImplementations.TryGetValue(type, out implementationTypes))
{
return(null);
}
var dependencyGetMi = typeof(DependencyService).GetMethod(nameof(DependencyService.Get), BindingFlags.Public | BindingFlags.Static);
return(implementationTypes.Select(t =>
{
var dependencyGetSpecificTypeMi = dependencyGetMi.MakeGenericMethod(t);
return dependencyGetSpecificTypeMi.Invoke(null, new object[1]) as TSharedInterface;
})
.Where(t => t != null)
.ToList());
}
public static T Get <T>(DependencyFetchTarget fetchTarget = DependencyFetchTarget.GlobalInstance) where T : class
{
Initialize();
DependencyData dependencyImplementation;
lock (s_dependencyLock)
{
Type targetType = typeof(T);
if (!DependencyImplementations.TryGetValue(targetType, out dependencyImplementation))
{
Type implementor = FindImplementor(targetType);
DependencyImplementations[targetType] = (dependencyImplementation = implementor != null ? new DependencyData {
ImplementorType = implementor
} : null);
}
}
if (dependencyImplementation == null)
{
return(null);
}
if (fetchTarget == DependencyFetchTarget.GlobalInstance)
{
if (dependencyImplementation.GlobalInstance == null)
{
lock (dependencyImplementation)
{
if (dependencyImplementation.GlobalInstance == null)
{
dependencyImplementation.GlobalInstance = Activator.CreateInstance(dependencyImplementation.ImplementorType);
}
}
}
return((T)dependencyImplementation.GlobalInstance);
}
return((T)Activator.CreateInstance(dependencyImplementation.ImplementorType));
}
public static T Resolve <T>(DependencyFetchTarget fallbackFetchTarget = DependencyFetchTarget.GlobalInstance) where T : class
{
var result = DependencyResolver.Resolve(typeof(T)) as T;
return(result ?? Get <T>(fallbackFetchTarget));
}
public static T Resolve<[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)] T>(DependencyFetchTarget fallbackFetchTarget = DependencyFetchTarget.GlobalInstance) where T : class
{
var result = DependencyResolver.Resolve(typeof(T)) as T;
return result ?? Get<T>(fallbackFetchTarget);
}
protected void Register <TImpl>(Action <TImpl> init, DependencyFetchTarget target) where TImpl : class
{
DependencyService.Register <TImpl>();
init(DependencyService.Get <TImpl>(target));
}
public static T Get <T>(DependencyFetchTarget fetchTarget = DependencyFetchTarget.GlobalInstance) where T : class
{
return((T)Get(typeof(T), fetchTarget));
}
