带值类型参数的NSInvocation

Question

Is it possible to use NSInvocation with value type arguments?

Currently we can do this:

[invocation setArgument:&param1 atIndex:2];

But we'd like that first parameter to be a value type such as int.

When I look at the variable being passed to the target method in the debbugger it's some junk value like 1.367481856920029E+302 - which seems like it's converting an object's address to an int.

Answer 1

If I get what are you looking for, you just want to pass an int as first parameter?

The solution of this issue should be:

NSInteger param1 = 2;
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:methodSignature];
[invocation setArgument:&param1 atIndex:2];

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