用ARC重新初始化/重新分配对象

Question

Im wondering if calling [[MyClass alloc] init] on an already existing (allocated) object create a leak in ARC? or does it manage the release and reallocation for you?

would doing the following be more proper:

myObject = nil;
myObject = [[MyClass alloc] init];

which is more appropriate? is there another way to do this properly?

Answer 1

With ARC, you don't need to set the myObject to be nil before reallocating it,only this line of code will be fine:

myObject = [[MyClass alloc] init];

When xcode compiles the code, it will automatically add the right release mechanism in.