Descarga del archivo _.part_ _objective-c_ completa
23/04/2013 · If at that moment ‘self’ is still valid does it then create a strong reference, and hold it long enough to complete what the block needs to do, then the strong self is released. If just after the block has converted the weak reference to strong, ‘self’ is finally released by all other objects, well – the block’s strong reference will keep it alive til the block returns.