What is the proper way to avoid Retain Cycle while using blocks

Question

What is the proper way to add objects in NSMutableArray which is strongly defined by property.

[tapBlockView setTapBlock:^(UIImage* image) {
   [self.myImage         


        

Answer 1

In your case you only need to reference an array which is referenced by self, so:

NSMutableArray *array = self.myImageArray;
[tapBlockView setTapBlock:^(UIImage* image)
                          {
                             [array addObject:image]; // No cycle
                          }];

Works fine provided that self.myImageArray does not return different array references at different times. There is no cycle: the current object references the array and the block, and in turn the block references the array.

If self.myImageArray does return different array references as different times then use a weak reference to self, your case 3.