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Editorial Team
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Asked: 2026-05-21T16:47:21+00:00

I’m creating a custom cell in the cellForRowAtIndex function and filling it with my

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I’m creating a custom cell in the cellForRowAtIndex function and filling it with my dynamic text. The height of the cell is variable based upon this text so I need to user the heightForRowAt function, but in that function I don’t have the cell. I can create a new one and fill it with the text and then call my calculateHeight function on it but then I’m creating 2 cells for each row.

Anyone have a better method? Cache the cells yourself in the cellForRow function in a dictionary by row index and use that? Is cellForRow called before heightForRow?

I’ve managed to crash Xcode4 twice so far playing around with this so am hoping someone has done this already.

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  1. Editorial Team
    tableView:heightForRowAtIndexPath:

    is called before

    tableView:cellForRowAtIndexPath:

    Creating two cells is a possible solution, but creating two cells isn’t a very effective method. However, you don’t need the cell to calculate the height; All you need is the string.

    You’ll probably want to use

    sizeWithFont:constrainedToSize:

    on your string to calculate the height.

    I could provide details on how to do that, but you should be able to figure it out from reading the documentation.

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