public void ExecutionBlocks ()
{
using (var bo = NSBlockOperation.Create (Create_Null)) {
bo.AddExecutionBlock (Add_Null);
Assert.That (bo.ExecutionBlocks.Length, Is.EqualTo (2), "ExecutionBlocks");
}
}
public void Add_Null ()
{
using (var bo = NSBlockOperation.Create (Create_Null)) {
// Objective-C exception thrown. Name: NSInvalidArgumentException Reason: *** -[NSBlockOperation addExecutionBlock:]: block is nil
Assert.Throws<ArgumentNullException> (() => bo.AddExecutionBlock (null));
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
Title = "Shipping Rates";
// Setup both operations to run
var shopOperation = new GetShopOperation(client);
shopOperation.DidReceiveShop += (op, shop) => {
currencyFormatter = new NSNumberFormatter();
currencyFormatter.NumberStyle = NSNumberFormatterStyle.Currency;
currencyFormatter.CurrencyCode = shop.Currency;
};
shopOperation.FailedToReceiveShop += (op, error) => {
Console.WriteLine("Failed to retrieve shop: {0}", error);
};
NSOperationQueue.MainQueue.AddOperation(shopOperation);
var shippingOperation = new GetShippingRatesOperation(client, checkout);
shippingOperation.DidReceiveShippingRates += (op, rates) => {
shippingRates = rates;
};
shippingOperation.FailedToReceiveShippingRates += (op, error) => {
Console.WriteLine("Failed to retrieve shipping rates: {0}", error);
};
NSOperationQueue.MainQueue.AddOperation(shippingOperation);
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
// Ensure both operations are completed before we reload the table view
var blockOperation = NSBlockOperation.Create(() => {
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
TableView.ReloadData();
});
blockOperation.AddDependency(shopOperation);
blockOperation.AddDependency(shippingOperation);
NSOperationQueue.MainQueue.AddOperation(blockOperation);
allOperations = new NSOperation[] {
blockOperation,
shopOperation,
shippingOperation
};
}
public void Create_Null()
{
// Objective-C exception thrown. Name: NSInvalidArgumentException Reason: *** -[NSBlockOperation addExecutionBlock:]: block is nil
NSBlockOperation.Create(null);
}
