Invoke model method with block that will run on the main thread

Question

one of the central tenets of the architecture of my latest app is that I\'m going to call methods on the app\'s model which will be async and accept failure and success scen

Answer 1

NSObject has a method:

- (void)performSelectorOnMainThread:(SEL)aSelector withObject:(id)arg waitUntilDone:(BOOL)wait

Create a method that takes a NSDictionary parameter in a convenient class that will always be around (like your app delegate, or a singleton object), package up the block and its parameters into a NSDictionary or NSArray, and call

[target performSelectorOnMainThread:@selector(doItSelector) withObject:blockAndParameters waitUntilDone:waitOrNot];