Question

I have been trying for a few days now to figure this out – I know it is something simple that I have probably missed but being new to iOS I think I missed something somewhere.

I have an array of image views in XCode and each image view is assigned a frame, what I cant seem to get to work is I want to compare each frame in each object from the array in an if else if statement sort of thing… I can’t figure out how to make the system do something like this…

if frame in the array object at index 0 is (0,0) (90,90) then do something
or if it is (90,90) (90,90) do this instead
otherwise do this…

I know how the if else statements work – I guess my main question is how do I access the frame part of the object in the array for comparison?

I am confused. Please help. I appreciate it. 🙂

Answer 1

I guess you’ll have to compare for each of the attributes in CGRect separately.

CGRect aRect = [[array objectAtIndex:0] frame];
if (aRect.origin.x == 0 && aRect.origin.y == 0 && aRect.size.width == 90 && aRect.size.height == 90){
    //do something
}
else if (aRect.origin.x == 90 && aRect.origin.y == 90 && aRect.size.width == 90 && aRect.size.height == 90){
    //do something else 
}

It could be that only the origin.x that you are concerned in your conditional statement, then you can simply to

CGRect aRect = [[array objectAtIndex:0] frame];
if (aRect.origin.x == 0){
    //do something
}
else if (aRect.origin.x == 90){
    //do something else 
}