Why it's wrong to init array in this way in Swift? [duplicate]

Question

I'm going to init an array with 6 UIImageViews in this way:

var imageViews = [UIImageView](repeating: UIImageView(), count: 6)

But I found that every element in it has the same address. If I change one imageView I'll change all of them.

I don't know how it works and what should I do to separate them?

There are a few ideas posted in this question stackoverflow.com/questions/24395105/… — E. Bogren
– E. Bogren, Commented Nov 23, 2018 at 8:57

dandan78 · Accepted Answer · 2018-11-23 08:53:19Z

0

That's just how it works.

If you check the documentation, it states:

Creates a new collection containing the specified number of a single, repeated value.

If you want separate values, create them explicity

var imageViews = [UIImageView(), UIImageView(), UIImageView(), ...]

Or use a loop. But always check the docs if something unexpected happens because you will either have found a bug in the SDK, or an error in your own assumptions.

answered Nov 23, 2018 at 8:53

dandan78

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