xcode6 - I want my image in xCode to fade in -

i want image fade in, not out. code, it's backwards. help?

[uiview animatewithduration:3.0 animations:^{ self.circleone.alpha = 0.0;

    }]; 

if circleone has alpha 0(invisible) need set alpha 1:

[uiview animatewithduration:3.0 animations:^{  self.circleone.alpha = 1.0; }]; 

edit:

if want make animation before appears on screen, can set alpha 0 before adding circleone it's parentview.

assuming circleone uiimageview this:

circleone = [[uiimageview alloc] initwithimage: [uiimage imagenamed:@"imagename,jpg"]]; circleone.alpha = 0.0; [parentview addsubview: circleone]; //run animation explained before